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% Encoding vector and redefinition of findfont for the ISO Latin1 standard.
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(Upas) 3189 1230 w
11 /LucidaSans-Italic f
(Erik) 2672 1490 w
(Quanstrom) 2917 1490 w
(quanstro@coraid.com) 2511 1620 w
(ABSTRACT) 2817 2095 w
11 /LucidaSansUnicode00 f
(The) 1116 2375 w
(Plan) 1368 2375 w
(9) 1643 2375 w
(email) 1765 2375 w
(system,) 2107 2375 w
(Upas,) 2569 2375 w
(uses) 2919 2375 w
(traditional) 3214 2375 w
(methods) 3817 2375 w
(of) 4336 2375 w
(delivery) 4498 2375 w
(to) 4968 2375 w
10 /LucidaSansUnicode00 f
(UNIX) 1116 2505 w
11 /LucidaSansUnicode00 f
(\256) 1351 2505 w
(mail) 1465 2505 w
(boxes) 1737 2505 w
(while) 2103 2505 w
(using) 2427 2505 w
(a) 2764 2505 w
(user-level) 2870 2505 w
(file) 3455 2505 w
(system,) 3667 2505 w
(Upas/fs,) 4121 2505 w
(to) 4617 2505 w
(trans\255) 4769 2505 w
(late) 1116 2635 w
(mail) 1366 2635 w
(boxes) 1647 2635 w
(of) 2022 2635 w
(various) 2184 2635 w
(formats) 2624 2635 w
(into) 3091 2635 w
(a) 3353 2635 w
(single,) 3468 2635 w
(convenient) 3875 2635 w
(format) 4511 2635 w
(for) 4923 2635 w
(access.) 1116 2765 w
(Unfortunately,) 1574 2765 w
(it) 2377 2765 w
(does) 2491 2765 w
(not) 2786 2765 w
(do) 3003 2765 w
(so) 3179 2765 w
(efficiently.) 3342 2765 w
(Upas/fs) 3976 2765 w
(reads) 4433 2765 w
(entire) 4766 2765 w
(folders) 1116 2895 w
(into) 1535 2895 w
(core.) 1790 2895 w
(When) 2137 2895 w
(deleting) 2477 2895 w
(email) 2958 2895 w
(from) 3294 2895 w
(mail) 3596 2895 w
(boxes,) 3870 2895 w
(the) 4273 2895 w
(entire) 4491 2895 w
(mail) 4849 2895 w
(box) 1116 3025 w
(is) 1365 3025 w
(rewritten.) 1499 3025 w
(I) 2096 3025 w
(describe) 2174 3025 w
(how) 2671 3025 w
(Upas/fs) 2937 3025 w
(has) 3400 3025 w
(been) 3631 3025 w
(adapted) 3938 3025 w
(to) 4415 3025 w
(use) 4568 3025 w
(cach\255) 4799 3025 w
(ing,) 1116 3155 w
(indexing) 1362 3155 w
(and) 1871 3155 w
(a) 2112 3155 w
(new) 2216 3155 w
(mail) 2474 3155 w
(box) 2744 3155 w
(format) 2990 3155 w
(\(mdir\)) 3390 3155 w
(to) 3753 3155 w
(limit) 3904 3155 w
(I/O,) 4186 3155 w
(reduce) 4440 3155 w
(core) 4846 3155 w
(size) 1116 3285 w
(and eliminate) 1364 3285 w
(the) 2124 3285 w
(need to rewrite) 2330 3285 w
(mail) 3176 3285 w
(boxes.) 3438 3285 w
11 /LucidaSans-Demi f
(1.) 720 3675 w
(Introduction) 888 3675 w
11 /LucidaSansUnicode00 f
(Chained at) 1080 3905 w
(his root) 1688 3905 w
(two scion demons dwell) 2134 3905 w
11 /LucidaSansUnicode20 f
(\023) 1355 4035 w
11 /LucidaSansUnicode00 f
(Erasmus Darwin, The) 1445 4035 w
(Botanic Garden) 2605 4035 w
(At) 720 4265 w
(Coraid,) 880 4265 w
(email) 1308 4265 w
(is) 1640 4265 w
(the) 1771 4265 w
(largest) 1985 4265 w
(resource) 2393 4265 w
(user) 2897 4265 w
(in) 3171 4265 w
(the) 3314 4265 w
(system) 3528 4265 w
(by) 3945 4265 w
(orders) 4115 4265 w
(of) 4503 4265 w
(magnitude.) 4655 4265 w
(As) 5340 4265 w
(of) 720 4395 w
(July,) 886 4395 w
(2007,) 1170 4395 w
(rewriting) 1539 4395 w
(mail) 2075 4395 w
(boxes) 2360 4395 w
(was) 2739 4395 w
(using) 2999 4395 w
(300MB/day) 3349 4395 w
(on) 4018 4395 w
(the) 4211 4395 w
(WORM) 4440 4395 w
(and) 4842 4395 w
(several) 5097 4395 w
(users) 720 4525 w
(required) 1058 4525 w
(more) 1561 4525 w
(than) 1888 4525 w
(400MB) 2177 4525 w
(of) 2594 4525 w
(core.) 2753 4525 w
(As) 3104 4525 w
(of) 3287 4525 w
(July,) 3447 4525 w
(2008,) 3725 4525 w
(rewriting) 4088 4525 w
(mail) 4618 4525 w
(boxes) 4897 4525 w
(was) 5270 4525 w
(using) 720 4655 w
(800MB/day) 1056 4655 w
(on) 1711 4655 w
(the) 1890 4655 w
(WORM) 2105 4655 w
(and) 2494 4655 w
(several) 2736 4655 w
(users) 3155 4655 w
(required) 3486 4655 w
(more) 3981 4655 w
(than) 4300 4655 w
(1.2GB) 4581 4655 w
(of) 4940 4655 w
(core) 5091 4655 w
(to) 5364 4655 w
(read) 720 4785 w
(email.) 1002 4785 w
(Clearly) 1406 4785 w
(these) 1816 4785 w
(are) 2150 4785 w
(difficult) 2363 4785 w
(to) 2820 4785 w
(sustain) 2973 4785 w
(levels) 3400 4785 w
(of) 3746 4785 w
(growth,) 3900 4785 w
(even) 4355 4785 w
(without) 4650 4785 w
(growth) 5098 4785 w
(of) 720 4915 w
(the) 867 4915 w
(company.) 1077 4915 w
(We) 1666 4915 w
(needed) 1862 4915 w
(to) 2293 4915 w
(limit) 2440 4915 w
(the) 2717 4915 w
(amount) 2926 4915 w
(of) 3371 4915 w
(disk) 3517 4915 w
(space) 3776 4915 w
(used) 4118 4915 w
(and,) 4411 4915 w
(more) 4682 4915 w
(urgently,) 4996 4915 w
(reduce) 720 5045 w
(Upas/fs) 1117 5045 w
11 /LucidaSansUnicode20 f
(\031) 1534 5045 w
11 /LucidaSansUnicode00 f
(core) 1604 5045 w
(size.) 1869 5045 w
(The) 720 5215 w
(techniques) 967 5215 w
(employed) 1597 5215 w
(are) 2165 5215 w
(simple.) 2381 5215 w
(Mail) 2852 5215 w
(is) 3120 5215 w
(now) 3256 5215 w
(stored) 3524 5215 w
(in) 3913 5215 w
(a) 4062 5215 w
(directory) 4172 5215 w
(with) 4695 5215 w
(one) 4970 5215 w
(mes\255) 5216 5215 w
(sage) 720 5345 w
(per) 1003 5345 w
(file.) 1215 5345 w
(This) 1488 5345 w
(eliminates) 1749 5345 w
(the) 2333 5345 w
(need) 2540 5345 w
(to) 2837 5345 w
(rewrite) 2981 5345 w
(mail) 3389 5345 w
(boxes.) 3652 5345 w
(Upas/fs) 4079 5345 w
(now) 4532 5345 w
(maintains an) 4787 5345 w
(index) 720 5475 w
(which) 1058 5475 w
(allows) 1408 5475 w
(it) 1782 5475 w
(to) 1896 5475 w
(present) 2045 5475 w
(complete) 2489 5475 w
(message) 3021 5475 w
(summaries) 3529 5475 w
(without) 4154 5475 w
(reading) 4597 5475 w
(indexed) 5043 5475 w
(messages.) 720 5605 w
(Combining) 1371 5605 w
(the) 2011 5605 w
(two) 2240 5605 w
(techniques) 2491 5605 w
(allows) 3131 5605 w
(Upas/fs) 3522 5605 w
(to) 3997 5605 w
(read) 4163 5605 w
(only) 4458 5605 w
(new) 4740 5605 w
(or) 5012 5605 w
(refer\255) 5181 5605 w
(enced) 720 5735 w
(messages.) 1075 5735 w
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(caching) 2122 5735 w
(limits) 2570 5735 w
(both) 2904 5735 w
(the) 3188 5735 w
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(number) 3679 5735 w
(of) 4132 5735 w
(in-core) 4279 5735 w
(messages) 4712 5735 w
(and) 5274 5735 w
(their total) 720 5865 w
(size.) 1280 5865 w
11 /LucidaSans-Demi f
(2.) 720 6125 w
(Mdir) 888 6125 w
(Format) 1182 6125 w
11 /LucidaSansUnicode00 f
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(addition) 875 6295 w
(to) 1369 6295 w
(meeting) 1532 6295 w
(our) 2022 6295 w
(urgent) 2258 6295 w
(operational) 2666 6295 w
(requirements) 3327 6295 w
(of) 4095 6295 w
(reducing) 4259 6295 w
(memory) 4783 6295 w
(and) 5274 6295 w
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(footprint,) 977 6425 w
(to) 1519 6425 w
(meet) 1663 6425 w
(the) 1966 6425 w
(expectations) 2173 6425 w
(of) 2891 6425 w
(our) 3035 6425 w
(users) 3251 6425 w
(we) 3574 6425 w
(require) 3756 6425 w
(a) 4174 6425 w
(solution that) 4270 6425 w
(is able) 4982 6425 w
(to) 5364 6425 w
(handle) 720 6555 w
(folders) 1126 6555 w
(up) 1544 6555 w
(to) 1727 6555 w
(ten) 1881 6555 w
(thousand) 2098 6555 w
(messages,) 2642 6555 w
(open) 3246 6555 w
(folders) 3558 6555 w
(quickly,) 3976 6555 w
(list) 4435 6555 w
(the) 4642 6555 w
(contents) 4859 6555 w
(of) 5364 6555 w
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(the) 2223 6685 w
(current) 2429 6685 w
(set) 2849 6685 w
(of) 3043 6685 w
(mail) 3186 6685 w
(readers.) 3448 6685 w
(There) 720 6855 w
(are) 1065 6855 w
(several) 1272 6855 w
(potential) 1686 6855 w
(styles) 2199 6855 w
(of) 2543 6855 w
(mail) 2691 6855 w
(boxes.) 2958 6855 w
(The) 3389 6855 w
(maildir[1]) 3628 6855 w
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(some) 4804 6855 w
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(properties.) 965 6985 w
(Mail) 1635 6985 w
(can) 1907 6985 w
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(delivered) 2327 6985 w
(to) 2869 6985 w
(or) 3029 6985 w
(deleted) 3193 6985 w
(from) 3642 6985 w
(a) 3949 6985 w
(mail) 4062 6985 w
(box) 4341 6985 w
(without) 4596 6985 w
(locking.) 5050 6985 w
(New) 720 7115 w
(mail) 985 7115 w
(or) 1249 7115 w
(deleted) 1398 7115 w
(mail) 1832 7115 w
(may) 2096 7115 w
(be) 2353 7115 w
(detected) 2521 7115 w
(with) 3020 7115 w
(a) 3283 7115 w
(directory) 3381 7115 w
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(amount) 1410 7245 w
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(storage) 2009 7245 w
(required) 2451 7245 w
(is) 2945 7245 w
(no) 3075 7245 w
(more) 3252 7245 w
(than) 3570 7245 w
(the) 3850 7245 w
(size) 4063 7245 w
(of) 4318 7245 w
(new) 4468 7245 w
(mail) 4724 7245 w
(received.) 4992 7245 w
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11 /LucidaSansUnicode00 f
(Mbox) 720 850 w
(format) 1063 850 w
(can) 1465 850 w
(require) 1695 850 w
(that) 2123 850 w
(a) 2379 850 w
(new) 2485 850 w
(copy) 2745 850 w
(of) 3039 850 w
(the) 3193 850 w
(inbox) 3410 850 w
(be) 3759 850 w
(stored) 3936 850 w
(every) 4322 850 w
(day.) 4651 850 w
(Even) 4954 850 w
(with) 5246 850 w
(storage) 720 980 w
(that) 1162 980 w
(coalesces) 1415 980 w
(duplicate) 1964 980 w
(blocks) 2495 980 w
(such) 2880 980 w
(as) 3169 980 w
(Venti,) 3327 980 w
(deleting) 3678 980 w
(a) 4153 980 w
(message) 4255 980 w
(will) 4763 980 w
(generally) 4985 980 w
(require) 720 1110 w
(new) 1138 1110 w
(storage) 1388 1110 w
(since) 1823 1110 w
(messages are) 2132 1110 w
(not) 2893 1110 w
(disk-block) 3104 1110 w
(aligned.) 3712 1110 w
(Maildir does not) 4209 1110 w
(reduce) 5110 1110 w
(the) 720 1240 w
(cost) 939 1240 w
(of) 1207 1240 w
(the) 1363 1240 w
(common) 1582 1240 w
(task) 2092 1240 w
(of) 2362 1240 w
(a) 2518 1240 w
(summary) 2627 1240 w
(listing) 3166 1240 w
(of) 3543 1240 w
(mail) 3699 1240 w
(such) 3974 1240 w
(as) 4269 1240 w
(generated) 4433 1240 w
(by) 5018 1240 w
(acme) 5191 1240 w
(Mail.) 720 1370 w
(The) 720 1540 w
(mails[2]) 968 1540 w
(format) 1441 1540 w
(proposes) 1847 1540 w
(a) 2388 1540 w
(directory) 2499 1540 w
(per) 3023 1540 w
(mail.) 3249 1540 w
(A) 3596 1540 w
(copy) 3722 1540 w
(of) 4021 1540 w
(the) 4179 1540 w
(mail) 4400 1540 w
(as) 4677 1540 w
(delivered) 4844 1540 w
(is) 5384 1540 w
(stored) 720 1670 w
(and) 1097 1670 w
(each) 1332 1670 w
(mime) 1616 1670 w
(part) 1951 1670 w
(is) 2204 1670 w
(decoded) 2328 1670 w
(in) 2818 1670 w
(such) 2954 1670 w
(a) 3238 1670 w
(way) 3335 1670 w
(that) 3574 1670 w
(a) 3821 1670 w
(mail) 3918 1670 w
(reader) 4181 1670 w
(could) 4561 1670 w
(display) 4889 1670 w
(the) 5301 1670 w
(file) 720 1800 w
(directly.) 930 1800 w
(Command) 1438 1800 w
(line) 2027 1800 w
(tools) 2265 1800 w
(in) 2572 1800 w
(the) 2716 1800 w
(style) 2931 1800 w
(of) 3223 1800 w
(MH[3]) 3375 1800 w
(are) 3736 1800 w
(used) 3948 1800 w
(to) 4247 1800 w
(display) 4399 1800 w
(and) 4819 1800 w
(process) 5061 1800 w
(mail.) 720 1930 w
(Upas/fs) 1058 1930 w
(is) 1516 1930 w
(not) 1645 1930 w
(necessary) 1862 1930 w
(for) 2426 1930 w
(reading) 2620 1930 w
(local) 3066 1930 w
(mail.) 3355 1930 w
(Mails) 3693 1930 w
(has) 4010 1930 w
(the) 4236 1930 w
(potential) 4448 1930 w
(to) 4962 1930 w
(reduce) 5110 1930 w
(memory) 720 2060 w
(footprint) 1199 2060 w
(below) 1714 2060 w
(that) 2073 2060 w
(offered) 2328 2060 w
(by) 2759 2060 w
(mdirs) 2929 2060 w
(for) 3277 2060 w
(native) 3474 2060 w
(email) 3839 2060 w
(reading.) 4172 2060 w
(However) 4691 2060 w
(all) 5194 2060 w
(of) 5364 2060 w
(the) 720 2190 w
(largest) 935 2190 w
(mail) 1344 2190 w
(boxes) 1615 2190 w
(at) 1980 2190 w
(our) 2126 2190 w
(site) 2350 2190 w
(are) 2585 2190 w
(served) 2797 2190 w
(exclusively) 3192 2190 w
(through) 3816 2190 w
(IMAP.) 4284 2190 w
(The) 4661 2190 w
(preformat\255) 4903 2190 w
(ting by mails would be) 720 2320 w
(unnecessary for such accounts.) 1965 2320 w
(Other) 720 2490 w
(mail) 1082 2490 w
(servers) 1369 2490 w
(such) 1812 2490 w
(as) 2120 2490 w
(Lotus) 2298 2490 w
(Notes[4]) 2649 2490 w
(store) 3158 2490 w
(email) 3490 2490 w
(in) 3840 2490 w
(a) 4001 2490 w
(custom) 4123 2490 w
(database) 4574 2490 w
(format) 5115 2490 w
(which) 720 2620 w
(allows) 1070 2620 w
(for) 1444 2620 w
(fielded) 1638 2620 w
(and) 2046 2620 w
(full-text) 2285 2620 w
(searching) 2773 2620 w
(of) 3329 2620 w
(mail) 3477 2620 w
(folders.) 3744 2620 w
(Such) 4226 2620 w
(a) 4517 2620 w
(format) 4618 2620 w
(provides) 5015 2620 w
(very) 720 2750 w
(quick) 992 2750 w
(mail) 1332 2750 w
(listings) 1610 2750 w
(and) 2046 2750 w
(good) 2295 2750 w
(search) 2617 2750 w
(capabilities.) 3016 2750 w
(Such) 3741 2750 w
(a) 4044 2750 w
(solution) 4157 2750 w
(would) 4640 2750 w
(not) 5013 2750 w
(lend) 5241 2750 w
(itself) 720 2880 w
(well) 1019 2880 w
(to a) 1265 2880 w
(tool-based environment,) 1504 2880 w
(nor would it) 2904 2880 w
(be) 3583 2880 w
(simple.) 3749 2880 w
(Maildir) 720 3050 w
(format) 1124 3050 w
(seemed) 1519 3050 w
(the) 1970 3050 w
(best) 2179 3050 w
(basic) 2445 3050 w
(format) 2757 3050 w
(but) 3152 3050 w
(its) 3368 3050 w
(particulars) 3535 3050 w
(are) 4139 3050 w
(tied) 4346 3050 w
(to) 4589 3050 w
(the) 4736 3050 w
10 /LucidaSansUnicode00 f
(UNIX) 4943 3050 w
11 /LucidaSansUnicode00 f
(envi\255) 5217 3050 w
(ronment;) 720 3180 w
(mdir) 1246 3180 w
(is) 1532 3180 w
(a) 1658 3180 w
(descendant.) 1757 3180 w
(A) 2477 3180 w
(mdir) 2591 3180 w
(folder) 2877 3180 w
(is) 3231 3180 w
(a) 3357 3180 w
(directory) 3456 3180 w
(with) 3967 3180 w
(the) 4230 3180 w
(name) 4438 3180 w
(of) 4768 3180 w
(the) 4913 3180 w
(folder.) 5121 3180 w
(Messages) 720 3310 w
(in) 1282 3310 w
(the) 1428 3310 w
(mdir) 1645 3310 w
(folder) 1939 3310 w
(are) 2301 3310 w
(stored) 2515 3310 w
(in) 2902 3310 w
(a) 3049 3310 w
(file) 3157 3310 w
(named) 3371 3310 w
11 /LucidaSans-Italic f
(utime.seq) 3780 3310 w
11 /LucidaSansUnicode00 f
(.) 4296 3310 w
11 /LucidaSans-Italic f
(Utime) 4413 3310 w
11 /LucidaSansUnicode00 f
(is) 4770 3310 w
(defined) 4905 3310 w
(as) 5355 3310 w
(the) 720 3440 w
(decimal) 942 3440 w
10 /LucidaSansUnicode00 f
(UNIX) 1404 3440 w
11 /LucidaSansUnicode00 f
(seconds) 1690 3440 w
(when) 2174 3440 w
(the) 2507 3440 w
(message) 2728 3440 w
(was) 3245 3440 w
(added) 3497 3440 w
(to) 3877 3440 w
(the) 4035 3440 w
(folder.) 4256 3440 w
(For) 4692 3440 w
(the) 4913 3440 w
(inbox,) 5134 3440 w
(this) 720 3570 w
(time) 960 3570 w
(will) 1240 3570 w
(correspond) 1464 3570 w
(to) 2111 3570 w
(the) 2262 3570 w
10 /LucidaSansUnicode00 f
(UNIX) 2473 3570 w
11 /LucidaSansUnicode20 f
(\034) 2751 3570 w
11 /LucidaSansUnicode00 f
(From) 2792 3570 w
11 /LucidaSansUnicode20 f
(\035) 3108 3570 w
11 /LucidaSansUnicode00 f
(line.) 3193 3570 w
11 /LucidaSans-Italic f
(Seq) 3501 3570 w
11 /LucidaSansUnicode00 f
(is) 3731 3570 w
(a) 3863 3570 w
(two-digit) 3968 3570 w
(sequence) 4511 3570 w
(number) 5058 3570 w
(starting) 720 3700 w
(with) 1175 3700 w
11 /LucidaTypewriter f
(00.) 1444 3700 w
11 /LucidaSansUnicode00 f
(The) 1724 3700 w
(lowest) 1966 3700 w
(available) 2352 3700 w
(sequence) 2862 3700 w
(number) 3408 3700 w
(is) 3865 3700 w
(used) 3996 3700 w
(to) 4294 3700 w
(store) 4444 3700 w
(the) 4757 3700 w
(message.) 4970 3700 w
(Thus,) 720 3830 w
(the) 1064 3830 w
(first) 1283 3830 w
(email) 1547 3830 w
(possible) 1885 3830 w
(would) 2377 3830 w
(be) 2747 3830 w
(named) 2927 3830 w
11 /LucidaTypewriter f
(0.00.) 3338 3830 w
11 /LucidaSansUnicode00 f
(To) 3782 3830 w
(prevent) 3967 3830 w
(accidents,) 4420 3830 w
(message) 5005 3830 w
(files) 720 3960 w
(are) 996 3960 w
(stored) 1217 3960 w
(with) 1609 3960 w
(the) 1887 3960 w
(append-only) 2110 3960 w
(and) 2848 3960 w
(exclusive-access) 3098 3960 w
(bits) 4053 3960 w
(turned) 4303 3960 w
(on.) 4708 3960 w
(The) 4965 3960 w
(mes\255) 5216 3960 w
(sage) 720 4090 w
(is) 1010 4090 w
(stored) 1141 4090 w
(in) 1524 4090 w
(the) 1667 4090 w
(same) 1881 4090 w
(format) 2205 4090 w
(it) 2605 4090 w
(would) 2721 4090 w
(be) 3085 4090 w
(in) 3259 4090 w
(mbox) 3402 4090 w
(format;) 3750 4090 w
(each) 4185 4090 w
(message) 4475 4090 w
(is) 4985 4090 w
(a) 5116 4090 w
(valid) 5221 4090 w
(mbox folder with a) 720 4220 w
(single) 1768 4220 w
(message.) 2121 4220 w
11 /LucidaSans-Demi f
(3.) 720 4480 w
(Indexing) 888 4480 w
11 /LucidaSansUnicode00 f
(When) 720 4650 w
(upas/fs) 1052 4650 w
(finds) 1500 4650 w
(an) 1805 4650 w
(unindexed) 1974 4650 w
(message,) 2579 4650 w
(it) 3121 4650 w
(is) 3234 4650 w
(added) 3362 4650 w
(to) 3732 4650 w
(the) 3880 4650 w
(index.) 4091 4650 w
(The) 4499 4650 w
(index) 4738 4650 w
(is) 5076 4650 w
(a) 5204 4650 w
(file) 5305 4650 w
(named) 720 4780 w
11 /LucidaSans-Italic f
(foldername) 1130 4780 w
11 /LucidaSansUnicode00 f
(.idx) 1740 4780 w
(and) 1991 4780 w
(consists) 2237 4780 w
(a) 2717 4780 w
(signature) 2825 4780 w
(and) 3373 4780 w
(one) 3618 4780 w
(line) 3862 4780 w
(per) 4103 4780 w
(MIME) 4326 4780 w
(part.) 4654 4780 w
(Each) 4987 4780 w
(line) 5278 4780 w
(contains) 720 4910 w
(the) 1212 4910 w
(SHA1) 1427 4910 w
(checksum) 1756 4910 w
(of) 2332 4910 w
(the) 2484 4910 w
(message) 2699 4910 w
(\(or) 3210 4910 w
(a) 3402 4910 w
(place) 3507 4910 w
(holder) 3831 4910 w
(for) 4218 4910 w
(subparts\),) 4415 4910 w
(one) 4995 4910 w
(field) 5236 4910 w
(per) 720 5040 w
(entry) 947 5040 w
(in) 1271 5040 w
(the) 1422 5040 w
11 /LucidaSans-Italic f
(messageid/info) 1644 5040 w
11 /LucidaSansUnicode00 f
(file,) 2511 5040 w
(flags) 2763 5040 w
(and) 3071 5040 w
(the) 3319 5040 w
(number) 3540 5040 w
(of) 4004 5040 w
(subparts.) 4162 5040 w
(The) 4747 5040 w
(flags) 4996 5040 w
(are) 5304 5040 w
(currently a) 720 5170 w
(superset) 1325 5170 w
(of) 1819 5170 w
(the) 1962 5170 w
(standard IMAP) 2168 5170 w
(flags.) 2972 5170 w
(They provide) 3335 5170 w
(the) 4062 5170 w
(similar) 4268 5170 w
(functionality) 4664 5170 w
(to) 5364 5170 w
(maildir) 720 5300 w
11 /LucidaSansUnicode20 f
(\031) 1093 5300 w
11 /LucidaSansUnicode00 f
(s) 1128 5300 w
(modified) 1224 5300 w
(file) 1738 5300 w
(names.) 1945 5300 w
(Thus) 2404 5300 w
(the) 2705 5300 w
11 /LucidaSansUnicode20 f
(\030) 2916 5300 w
11 /LucidaSansUnicode00 f
(S) 2951 5300 w
11 /LucidaSansUnicode20 f
(\031) 3010 5300 w
11 /LucidaSansUnicode00 f
(\(answered\)) 3084 5300 w
(flag) 3703 5300 w
(remains) 3944 5300 w
(set) 4409 5300 w
(between) 4607 5300 w
(invoca\255) 5095 5300 w
(tions) 720 5430 w
(of) 1029 5430 w
(mail) 1182 5430 w
(readers.) 1454 5430 w
(Other) 1969 5430 w
(mutable) 2316 5430 w
(information) 2796 5430 w
(about) 3465 5430 w
(a) 3816 5430 w
(message) 3923 5430 w
(may) 4436 5430 w
(be) 4702 5430 w
(stored) 4879 5430 w
(in) 5265 5430 w
(a) 5411 5430 w
(similar way.) 720 5560 w
(Since) 720 5730 w
(the) 1032 5730 w
11 /LucidaSans-Italic f
(info) 1238 5730 w
11 /LucidaSansUnicode00 f
(file) 1478 5730 w
(is read by all) 1680 5730 w
(the) 2396 5730 w
(mail) 2602 5730 w
(readers to produce) 2864 5730 w
(mail) 3913 5730 w
(listings,) 4176 5730 w
(mail) 4632 5730 w
(boxes) 4895 5730 w
(may) 5252 5730 w
(be) 720 5860 w
(listed) 893 5860 w
(without) 1227 5860 w
(opening) 1671 5860 w
(any) 2147 5860 w
(mail) 2375 5860 w
(files) 2644 5860 w
(when) 2909 5860 w
(no) 3234 5860 w
(new) 3410 5860 w
(mail) 3666 5860 w
(has) 3934 5860 w
(arrived.) 4160 5860 w
(Similarly,) 4642 5860 w
(open\255) 5170 5860 w
(ing) 720 5990 w
(a) 934 5990 w
(new) 1041 5990 w
(mail) 1302 5990 w
(box) 1575 5990 w
(requires) 1824 5990 w
(reading) 2309 5990 w
(the) 2760 5990 w
(index) 2977 5990 w
(and) 3321 5990 w
(checking) 3565 5990 w
(new) 4085 5990 w
(mail.) 4346 5990 w
(Index) 4689 5990 w
(files) 5034 5990 w
(are) 5304 5990 w
(typically) 720 6120 w
(between) 1197 6120 w
(0.5%) 1686 6120 w
(and) 1973 6120 w
(5%) 2211 6120 w
(the) 2394 6120 w
(size) 2605 6120 w
(of) 2858 6120 w
(the) 3005 6120 w
(full) 3215 6120 w
(mail) 3427 6120 w
(box.) 3693 6120 w
(Each) 4005 6120 w
(time) 4288 6120 w
(the) 4564 6120 w
(index) 4774 6120 w
(is) 5111 6120 w
(gen\255) 5238 6120 w
(erated, it) 720 6250 w
(is fully rewritten.) 1238 6250 w
11 /LucidaSans-Demi f
(4.) 720 6510 w
(Caching) 888 6510 w
11 /LucidaSansUnicode00 f
(Upas/fs) 720 6680 w
(stores) 1186 6680 w
(each) 1562 6680 w
(message) 1858 6680 w
(in) 2374 6680 w
(a) 2523 6680 w
11 /LucidaTypewriter f
(Message) 2634 6680 w
11 /LucidaSansUnicode00 f
(structure.) 3237 6680 w
(To) 3839 6680 w
(enable) 4025 6680 w
(caching,) 4429 6680 w
(this) 4923 6680 w
(struc\255) 5170 6680 w
(ture) 720 6810 w
(was) 973 6810 w
(split) 1212 6810 w
(into) 1479 6810 w
(four) 1724 6810 w
(parts:) 1982 6810 w
(The) 2326 6810 w
11 /LucidaTypewriter f
(Idx) 2562 6810 w
11 /LucidaSansUnicode00 f
(\(or) 2836 6810 w
(index\),) 3021 6810 w
(message) 3427 6810 w
(subparts,) 3931 6810 w
(information) 4468 6810 w
(on) 5129 6810 w
(the) 5301 6810 w
(cache) 720 6940 w
(state) 1069 6940 w
(of) 1376 6940 w
(the) 1530 6940 w
(message) 1747 6940 w
(and) 2260 6940 w
(a) 2504 6940 w
(set) 2611 6940 w
(of) 2816 6940 w
(pointers) 2970 6940 w
(into) 3456 6940 w
(the) 3710 6940 w
(processed) 3927 6940 w
(header) 4516 6940 w
(and) 4930 6940 w
(body.) 5175 6940 w
(Only) 720 7070 w
(the) 1009 7070 w
(pointers) 1226 7070 w
(to) 1711 7070 w
(the) 1864 7070 w
(processed) 2080 7070 w
(header) 2667 7070 w
(and) 3079 7070 w
(body) 3322 7070 w
(are) 3629 7070 w
(subject) 3842 7070 w
(to) 4272 7070 w
(caching.) 4425 7070 w
(The) 4949 7070 w
(avail\255) 5193 7070 w
(able) 720 7200 w
(cache) 979 7200 w
(states are) 1317 7200 w
11 /LucidaTypewriter f
(Cidx) 1872 7200 w
11 /LucidaSansUnicode00 f
(,) 2188 7200 w
11 /LucidaTypewriter f
(Cheader) 2258 7200 w
11 /LucidaSansUnicode00 f
(and) 2846 7200 w
11 /LucidaTypewriter f
(Cbody) 3079 7200 w
11 /LucidaSansUnicode00 f
(.) 3474 7200 w
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11 /LucidaSansUnicode00 f
(When) 720 850 w
(the) 1063 850 w
(header) 1284 850 w
(and) 1701 850 w
(body) 1949 850 w
(are) 2261 850 w
(not) 2479 850 w
(present,) 2705 850 w
(the) 3193 850 w
(average) 3414 850 w
(message) 3880 850 w
(with) 4397 850 w
(subparts) 4673 850 w
(takes) 5188 850 w
(roughly) 720 980 w
(3KB) 1166 980 w
(of) 1412 980 w
(memory.) 1561 980 w
(Thus) 2107 980 w
(a) 2408 980 w
(10,000) 2509 980 w
(message) 2929 980 w
(mail) 3436 980 w
(box) 3703 980 w
(would) 3946 980 w
(require) 4307 980 w
(roughly) 4730 980 w
(30MB) 5175 980 w
(of) 720 1110 w
(core) 870 1110 w
(in) 1142 1110 w
(addition) 1284 1110 w
(to) 1765 1110 w
(any) 1915 1110 w
(cached) 2143 1110 w
(messages.) 2557 1110 w
(Reads) 3192 1110 w
(of) 3551 1110 w
(the) 3701 1110 w
11 /LucidaTypewriter f
(info) 3914 1110 w
11 /LucidaSansUnicode00 f
(or) 4272 1110 w
11 /LucidaTypewriter f
(subject) 4426 1110 w
11 /LucidaSansUnicode00 f
(files) 5021 1110 w
(can) 5287 1110 w
(be) 720 1240 w
(satisfied from the) 886 1240 w
(information in the) 1867 1240 w
11 /LucidaTypewriter f
(Idx) 2867 1240 w
11 /LucidaSansUnicode00 f
(structure.) 3139 1240 w
(Since) 720 1410 w
(there) 1040 1410 w
(are) 1361 1410 w
(a) 1573 1410 w
(fair) 1678 1410 w
(number) 1901 1410 w
(of) 2359 1410 w
(very) 2511 1410 w
(large) 2776 1410 w
(messages,) 3088 1410 w
(requests) 3690 1410 w
(that) 4193 1410 w
(can) 4448 1410 w
(be) 4677 1410 w
(satisfied) 4852 1410 w
(by) 5346 1410 w
(reading) 720 1540 w
(the) 1163 1540 w
(message) 1372 1540 w
(headers) 1876 1540 w
(do) 2336 1540 w
(not) 2509 1540 w
(result) 2722 1540 w
(in) 3063 1540 w
(the) 3200 1540 w
(full) 3408 1540 w
(message) 3618 1540 w
(being) 4122 1540 w
(read.) 4458 1540 w
(Reads) 4802 1540 w
(of) 5156 1540 w
(the) 5301 1540 w
11 /LucidaTypewriter f
(header) 720 1670 w
11 /LucidaSansUnicode00 f
(or) 1235 1670 w
11 /LucidaTypewriter f
(rawheader) 1388 1670 w
11 /LucidaSansUnicode00 f
(files) 2140 1670 w
(of) 2404 1670 w
(top-level) 2553 1670 w
(messages) 3080 1670 w
(are) 3645 1670 w
(satisfied) 3855 1670 w
(in) 4347 1670 w
(this) 4489 1670 w
(way.) 4728 1670 w
(Reading) 5043 1670 w
(the) 720 1800 w
(same) 930 1800 w
(files) 1250 1800 w
(for) 1512 1800 w
(subparts,) 1704 1800 w
(however,) 2243 1800 w
(results) 2763 1800 w
(in) 3161 1800 w
(the) 3299 1800 w
(entire) 3508 1800 w
(message) 3856 1800 w
(being) 4361 1800 w
(read.) 4698 1800 w
(Caching) 5043 1800 w
(the) 720 1930 w
(header results in the) 926 1930 w
11 /LucidaTypewriter f
(Cheader) 2064 1930 w
11 /LucidaSansUnicode00 f
(cache) 2652 1930 w
(state.) 2990 1930 w
(Similarly,) 720 2100 w
(reading) 1251 2100 w
(the) 1700 2100 w
11 /LucidaTypewriter f
(body) 1915 2100 w
11 /LucidaSansUnicode00 f
(requires) 2275 2100 w
(the) 2758 2100 w
(body) 2973 2100 w
(to) 3279 2100 w
(be) 3431 2100 w
(read,) 3606 2100 w
(processed) 3922 2100 w
(and) 4508 2100 w
(results) 4751 2100 w
(in) 5156 2100 w
(the) 5301 2100 w
11 /LucidaTypewriter f
(Cbody) 720 2230 w
11 /LucidaSansUnicode00 f
(cache) 1178 2230 w
(state.) 1544 2230 w
(Reading) 1938 2230 w
(from) 2430 2230 w
(MIME) 2747 2230 w
(subparts) 3090 2230 w
(also) 3617 2230 w
(results) 3895 2230 w
(in) 4317 2230 w
(the) 4479 2230 w
11 /LucidaTypewriter f
(Cbody) 4712 2230 w
11 /LucidaSansUnicode00 f
(cache) 5169 2230 w
(state.) 720 2360 w
(The) 720 2530 w
(cache) 960 2530 w
(has) 1304 2530 w
(a) 1530 2530 w
(simple) 1632 2530 w
(LRU) 2026 2530 w
(replacement) 2270 2530 w
(policy.) 2972 2530 w
(Each) 3397 2530 w
(time) 3683 2530 w
(a) 3962 2530 w
(cached) 4065 2530 w
(member) 4479 2530 w
(of) 4963 2530 w
(a) 5113 2530 w
(mes\255) 5216 2530 w
(sage) 720 2660 w
(is) 1017 2660 w
(accessed,) 1155 2660 w
(it) 1718 2660 w
(is) 1841 2660 w
(moved) 1979 2660 w
(to) 2386 2660 w
(the) 2544 2660 w
(head) 2764 2660 w
(of) 3073 2660 w
(the) 3230 2660 w
(list.) 3450 2660 w
(The) 3730 2660 w
(cache) 3978 2660 w
(contains) 4330 2660 w
(a) 4828 2660 w
(maximum) 4938 2660 w
(number) 720 2790 w
(of) 1183 2790 w
(messages) 1340 2790 w
(and) 1912 2790 w
(a) 2159 2790 w
(maximum) 2269 2790 w
(size.) 2852 2790 w
(While) 3184 2790 w
(the) 3522 2790 w
(maximum) 3743 2790 w
(number) 4327 2790 w
(of) 4791 2790 w
(messages) 4949 2790 w
(may) 720 2920 w
(not) 986 2920 w
(be) 1208 2920 w
(exceeded,) 1385 2920 w
(the) 1975 2920 w
(maximum) 2192 2920 w
(cache) 2772 2920 w
(size) 3120 2920 w
(may) 3378 2920 w
(be) 3643 2920 w
(exceeded) 3819 2920 w
(if) 4373 2920 w
(the) 4491 2920 w
(sum) 4707 2920 w
(of) 4978 2920 w
(all) 5131 2920 w
(the) 5301 2920 w
(currently) 720 3050 w
(referenced) 1249 3050 w
(messages) 1876 3050 w
(is) 2454 3050 w
(greater) 2597 3050 w
(than) 3037 3050 w
(the) 3331 3050 w
(size) 3558 3050 w
(of) 3827 3050 w
(the) 3991 3050 w
(cache.) 4218 3050 w
(In) 4647 3050 w
(this) 4803 3050 w
(case) 5056 3050 w
(all) 5347 3050 w
(unreferenced) 720 3180 w
(messages) 1473 3180 w
(will) 2041 3180 w
(be) 2267 3180 w
(freed.) 2443 3180 w
(When) 2836 3180 w
(removing) 3173 3180 w
(a) 3718 3180 w
(message) 3823 3180 w
(from) 4334 3180 w
(the) 4633 3180 w
(cache) 4848 3180 w
(all) 5195 3180 w
(of) 5364 3180 w
(the) 720 3310 w
(cacheable) 926 3310 w
(information is freed.) 1488 3310 w
11 /LucidaSans-Demi f
(5.) 720 3570 w
(Collateral damage) 888 3570 w
11 /LucidaSansUnicode00 f
(Each new) 1080 3800 w
(user of) 1609 3800 w
(a) 2018 3800 w
(new) 2114 3800 w
(system uncovers a) 2364 3800 w
(new) 3383 3800 w
(class of) 3633 3800 w
(bugs.) 4072 3800 w
11 /LucidaSansUnicode20 f
(\024) 1355 3930 w
11 /LucidaSansUnicode00 f
(Brian Kernighan) 1500 3930 w
(In) 720 4160 w
(addition) 856 4160 w
(to) 1331 4160 w
(upas/fs,) 1475 4160 w
(programs) 1955 4160 w
(that) 2504 4160 w
(have) 2751 4160 w
(assumptions) 3035 4160 w
(about) 3747 4160 w
(how) 4089 4160 w
(mail) 4345 4160 w
(boxes) 4608 4160 w
(are) 4965 4160 w
(struc\255) 5170 4160 w
(tured) 720 4290 w
(needed) 1049 4290 w
(to) 1485 4290 w
(be) 1637 4290 w
(modified.) 1811 4290 w
(Programs) 2398 4290 w
(which) 2946 4290 w
(deliver) 3298 4290 w
(mail) 3700 4290 w
(to) 3970 4290 w
(mail) 4121 4290 w
(boxes) 4391 4290 w
(\(deliver,) 4755 4290 w
(mar\255) 5228 4290 w
(shal,) 720 4420 w
(ml,) 1017 4420 w
(smtp\)) 1232 4420 w
(and) 1582 4420 w
(append) 1826 4420 w
(messages) 2270 4420 w
(to) 2839 4420 w
(folders) 2993 4420 w
(were) 3411 4420 w
(given) 3711 4420 w
(a) 4044 4420 w
(common) 4151 4420 w
(\(nedmail\)) 4659 4420 w
(func\255) 5203 4420 w
(tion) 720 4550 w
(to) 979 4550 w
(call.) 1138 4550 w
(Since) 1440 4550 w
(this) 1768 4550 w
(was) 2016 4550 w
(done) 2269 4550 w
(by) 2586 4550 w
(modifying) 2763 4550 w
(functions) 3350 4550 w
(in) 3898 4550 w
(the) 4049 4550 w
(Upas) 4271 4550 w
(common) 4584 4550 w
(library,) 5096 4550 w
(this) 720 4680 w
(presented) 958 4680 w
(a) 1533 4680 w
(problem) 1635 4680 w
(for) 2122 4680 w
(programs) 2316 4680 w
(not) 2870 4680 w
(traditionally) 3088 4680 w
(part) 3768 4680 w
(of) 4026 4680 w
(Upas) 4176 4680 w
(such) 4480 4680 w
(as) 4770 4680 w
(acme) 4929 4680 w
(Mail) 5252 4680 w
(and) 720 4810 w
(imap4d.) 969 4810 w
(Rather) 1492 4810 w
(than) 1889 4810 w
(fold) 2178 4810 w
(these) 2438 4810 w
(programs) 2778 4810 w
(into) 3342 4810 w
(Upas,) 3601 4810 w
(a) 3949 4810 w
(new) 4061 4810 w
(program,) 4326 4810 w
(mbappend,) 4868 4810 w
(was added to Upas.) 720 4940 w
(Imap4d) 720 5110 w
(also) 1166 5110 w
(requires) 1427 5110 w
(the) 1911 5110 w
(ability) 2127 5110 w
(to) 2496 5110 w
(rename) 2649 5110 w
(and) 3094 5110 w
(remove) 3337 5110 w
(folders.) 3777 5110 w
(While) 4264 5110 w
(an) 4598 5110 w
(external) 4772 5110 w
(pro\255) 5255 5110 w
(gram) 720 5240 w
(would) 1032 5240 w
(work) 1389 5240 w
(for this as well, that) 1685 5240 w
(approach has some) 2784 5240 w
(drawbacks.) 3857 5240 w
(Most) 4528 5240 w
(importantly,) 4822 5240 w
(IMAP) 720 5370 w
(folders) 1023 5370 w
(can) 1434 5370 w
11 /LucidaSansUnicode20 f
(\031) 1619 5370 w
11 /LucidaSansUnicode00 f
(t) 1654 5370 w
(be) 1734 5370 w
(moved) 1904 5370 w
(or) 2300 5370 w
(renamed) 2452 5370 w
(in) 2961 5370 w
(the) 3101 5370 w
(same) 3312 5370 w
(way) 3633 5370 w
(without) 3876 5370 w
(reimplementing) 4318 5370 w
(func\255) 5203 5370 w
(tionality) 720 5500 w
(that) 1196 5500 w
(is) 1452 5500 w
(already) 1585 5500 w
(in) 2017 5500 w
(upas/fs.) 2162 5500 w
(It) 2686 5500 w
(also) 2804 5500 w
(emphasises) 3064 5500 w
(the) 3732 5500 w
(asymmetry) 3947 5500 w
(between) 4574 5500 w
(reading) 5067 5500 w
(and) 720 5630 w
(deleting) 962 5630 w
(email) 1440 5630 w
(and) 1773 5630 w
(other) 2015 5630 w
(folder) 2342 5630 w
(actions.) 2703 5630 w
(Folder) 3199 5630 w
(renaming) 3578 5630 w
(and) 4129 5630 w
(removal) 4372 5630 w
(were) 4843 5630 w
(added) 5142 5630 w
(to) 720 5760 w
(upas/fs.) 868 5760 w
(It) 1352 5760 w
(is) 1465 5760 w
(intended) 1593 5760 w
(that) 2103 5760 w
(mbappend) 2353 5760 w
(will) 2961 5760 w
(be) 3181 5760 w
(removed) 3351 5760 w
(soon) 3854 5760 w
(and) 4151 5760 w
(replaced) 4388 5760 w
(with) 4883 5760 w
(equiv\255) 5148 5760 w
(alent) 720 5890 w
(upas/fs functionality ) 1019 5890 w
11 /LucidaSansUnicode20 f
(\024) 2162 5890 w
11 /LucidaSansUnicode00 f
(at) 2307 5890 w
(least) 2444 5890 w
(for non-delivery programs.) 2731 5890 w
(Mdirs) 720 6060 w
(also) 1063 6060 w
(expose) 1325 6060 w
(an) 1754 6060 w
(oddity) 1930 6060 w
(about) 2312 6060 w
(file) 2665 6060 w
(permissions.) 2879 6060 w
(An) 3641 6060 w
(append-only) 3832 6060 w
(file) 4565 6060 w
(that) 4779 6060 w
(is) 5037 6060 w
(mode) 5172 6060 w
11 /LucidaTypewriter f
(0622) 720 6190 w
11 /LucidaSansUnicode00 f
(may) 1078 6190 w
(be) 1340 6190 w
(appended) 1513 6190 w
(to) 2084 6190 w
(by) 2234 6190 w
(anyone,) 2402 6190 w
(but) 2861 6190 w
(is) 3080 6190 w
(readable) 3209 6190 w
(only) 3711 6190 w
(by) 3976 6190 w
(the) 4143 6190 w
(owner.) 4355 6190 w
(With) 4793 6190 w
(a) 5070 6190 w
(direc\255) 5172 6190 w
(tory,) 720 6320 w
(such) 1004 6320 w
(a) 1291 6320 w
(setup) 1391 6320 w
(is) 1726 6320 w
(not) 1853 6320 w
(directly) 2068 6320 w
(possible) 2501 6320 w
(as) 2983 6320 w
(write) 3139 6320 w
(permission) 3443 6320 w
(to) 4072 6320 w
(a) 4220 6320 w
(directory) 4321 6320 w
(implies) 4835 6320 w
(per\255) 5260 6320 w
(mission) 720 6450 w
(to) 1173 6450 w
(remove.) 1321 6450 w
(There) 1825 6450 w
(are) 2170 6450 w
(a) 2377 6450 w
(number) 2477 6450 w
(of) 2930 6450 w
(solutions) 3077 6450 w
(to) 3603 6450 w
(this) 3750 6450 w
(problem.) 3986 6450 w
(Delivery) 4541 6450 w
(could) 5010 6450 w
(be) 5341 6450 w
(made) 720 6580 w
(asymmetrical) 1052 6580 w
11 /LucidaSansUnicode20 f
(\024) 1759 6580 w
11 /LucidaSansUnicode00 f
(incoming) 1869 6580 w
(files) 2400 6580 w
(could) 2661 6580 w
(be) 2991 6580 w
(written) 3160 6580 w
(to) 3572 6580 w
(a) 3719 6580 w
(mbox.) 3819 6580 w
(Or,) 4198 6580 w
(following) 4403 6580 w
(the) 4934 6580 w
(exam\255) 5144 6580 w
(ple) 720 6710 w
(of) 933 6710 w
(the) 1091 6710 w
(outbound) 1312 6710 w
(mail) 1879 6710 w
(queue,) 2156 6710 w
(each) 2570 6710 w
(user) 2867 6710 w
(could) 3147 6710 w
(deliver) 3488 6710 w
(to) 3896 6710 w
(a) 4053 6710 w
(directory) 4163 6710 w
(owned) 4686 6710 w
(by) 5086 6710 w
(that) 5261 6710 w
(user.) 720 6840 w
(In) 1061 6840 w
(many) 1201 6840 w
(BSD-derived) 1530 6840 w
10 /LucidaSansUnicode00 f
(UNIX) 2234 6840 w
11 /LucidaSansUnicode00 f
(systems,) 2510 6840 w
(the) 3016 6840 w
11 /LucidaSansUnicode20 f
(\034) 3228 6840 w
11 /LucidaSansUnicode00 f
(sticky) 3269 6840 w
(bit) 3616 6840 w
11 /LucidaSansUnicode20 f
(\035) 3758 6840 w
11 /LucidaSansUnicode00 f
(on) 3840 6840 w
(directories) 4016 6840 w
(is) 4624 6840 w
(used) 4753 6840 w
(to) 5049 6840 w
(mod\255) 5198 6840 w
(ify) 720 6970 w
(the) 891 6970 w
(meaning) 1103 6970 w
(of) 1605 6970 w
(the) 1754 6970 w
11 /LucidaTypewriter f
(w) 1966 6970 w
11 /LucidaSansUnicode00 f
(bit) 2086 6970 w
(for) 2269 6970 w
(users) 2463 6970 w
(matching) 2791 6970 w
(only) 3328 6970 w
(the) 3593 6970 w
(other) 3805 6970 w
(bits.) 4129 6970 w
(For) 4438 6970 w
(them,) 4650 6970 w
(the) 4999 6970 w
11 /LucidaTypewriter f
(w) 5211 6970 w
11 /LucidaSansUnicode00 f
(bit) 5330 6970 w
(gives permission to create) 720 7100 w
(but) 2159 7100 w
(not) 2372 7100 w
(to remove.) 2583 7100 w
(While) 720 7270 w
(this) 1063 7270 w
(is) 1314 7270 w
(somewhat) 1456 7270 w
(of) 2052 7270 w
(a) 2214 7270 w
(one-off) 2329 7270 w
(situation,) 2793 7270 w
(I) 3348 7270 w
(chose) 3434 7270 w
(to) 3797 7270 w
(implement) 3959 7270 w
(a) 4583 7270 w
(version) 4698 7270 w
(of) 5139 7270 w
(the) 5301 7270 w
cleartomark
showpage
saveobj restore
%%EndPage: 3 3
%%Page: 4 4
/saveobj save def
mark
4 pagesetup
11 /LucidaSansUnicode20 f
(\034) 720 850 w
11 /LucidaSansUnicode00 f
(sticky) 761 850 w
(bit) 1106 850 w
11 /LucidaSansUnicode20 f
(\035) 1248 850 w
11 /LucidaSansUnicode00 f
(using) 1328 850 w
(the) 1659 850 w
(existing) 1869 850 w
(append-only) 2333 850 w
(bit) 3057 850 w
(on) 3237 850 w
(our) 3410 850 w
(file) 3628 850 w
(server.) 3833 850 w
(This) 4268 850 w
(was) 4531 850 w
(implemented) 4771 850 w
(as) 720 980 w
(an) 887 980 w
(extra) 1066 980 w
(permission) 1392 980 w
(check) 2031 980 w
(when) 2387 980 w
(removing) 2720 980 w
(files.) 3271 980 w
(Fewer) 3614 980 w
(than) 3977 980 w
(10) 4265 980 w
(lines) 4453 980 w
(of) 4754 980 w
(code) 4913 980 w
(were) 5218 980 w
(required.) 720 1110 w
11 /LucidaSans-Demi f
(6.) 720 1370 w
(Performance) 888 1370 w
11 /LucidaSansUnicode00 f
(A) 720 1540 w
(representative) 849 1540 w
(local) 1665 1540 w
(mail) 1967 1540 w
(box) 2248 1540 w
(was) 2505 1540 w
(used) 2761 1540 w
(to) 3070 1540 w
(generate) 3232 1540 w
(some) 3755 1540 w
(rough) 4096 1540 w
(performance) 4466 1540 w
(num\255) 5198 1540 w
(bers.) 720 1670 w
(The) 1067 1670 w
(mail) 1311 1670 w
(box) 1583 1670 w
(is) 1830 1670 w
(110MB) 1962 1670 w
(and) 2372 1670 w
(contains) 2614 1670 w
(868) 3107 1670 w
(messages.) 3358 1670 w
(These) 3995 1670 w
(figures) 4356 1670 w
(are) 4772 1670 w
(shown) 4984 1670 w
(in) 5372 1670 w
(table) 720 1800 w
(1.) 1031 1800 w
(In) 1216 1800 w
(the) 1362 1800 w
(worse) 1580 1800 w
(case) 1942 1800 w
11 /LucidaSansUnicode20 f
(\024) 2177 1800 w
11 /LucidaSansUnicode00 f
(an) 2287 1800 w
(unindexed) 2463 1800 w
(mail) 3075 1800 w
(box) 3349 1800 w
11 /LucidaSansUnicode20 f
(\024) 3552 1800 w
11 /LucidaSansUnicode00 f
(the) 3662 1800 w
(new) 3880 1800 w
(upas/fs) 4142 1800 w
(uses) 4598 1800 w
(18%) 4887 1800 w
(of) 5146 1800 w
(the) 5301 1800 w
(memory) 720 1930 w
(of) 1200 1930 w
(the) 1353 1930 w
(original) 1569 1930 w
(while) 2019 1930 w
(using) 2342 1930 w
(13%) 2678 1930 w
(more) 2934 1930 w
(cpu.) 3254 1930 w
(In) 3561 1930 w
(the) 3705 1930 w
(best) 3920 1930 w
(case,) 4192 1930 w
(it) 4506 1930 w
(uses) 4623 1930 w
(only) 4909 1930 w
(5%) 5177 1930 w
(of) 5364 1930 w
(the) 720 2060 w
(memory) 930 2060 w
(while) 1404 2060 w
(using) 1722 2060 w
(only) 2053 2060 w
(13%) 2316 2060 w
(of) 2567 2060 w
(the) 2715 2060 w
(cpu.) 2926 2060 w
(Clearly,) 3229 2060 w
(a) 3669 2060 w
(larger) 3770 2060 w
(mail) 4123 2060 w
(box) 4390 2060 w
(will) 4633 2060 w
(make) 4854 2060 w
(these) 5183 2060 w
(ratios) 720 2190 w
(more) 1062 2190 w
(attractive.) 1378 2190 w
(In) 1985 2190 w
(the) 2125 2190 w
(two) 2336 2190 w
(months) 2569 2190 w
(since) 3011 2190 w
(the) 3325 2190 w
(snapshot) 3536 2190 w
(was) 4062 2190 w
(taken,) 4304 2190 w
(that) 4675 2190 w
(same) 4925 2190 w
(mail) 5245 2190 w
(box has grown to 220MB) 720 2320 w
(and contains 1814 messages.) 2090 2320 w
11 /S f
(_) 1637 2465 w
(_____________________________________________________) 1639 2465 w
11 /LucidaSansUnicode00 f
(Table) 2527 2595 w
(1 ) 2855 2595 w
11 /LucidaSansUnicode20 f
(\023) 2959 2595 w
11 /LucidaSansUnicode00 f
(Performance) 3049 2595 w
11 /S f
(_) 1637 2615 w
(_____________________________________________________) 1639 2615 w
11 /LucidaSansUnicode00 f
(action) 1963 2745 w
(user) 2701 2745 w
(system) 3103 2745 w
(real) 3663 2745 w
(core) 4049 2745 w
(size) 4314 2745 w
(s) 2789 2875 w
(s) 3262 2875 w
(s) 3735 2875 w
(MB) 4208 2875 w
11 /S f
(_) 1637 2895 w
(_____________________________________________________) 1639 2895 w
11 /LucidaSansUnicode00 f
(old fs read) 1775 3025 w
(1.69) 2696 3025 w
(0.84) 3169 3025 w
(6.07) 3642 3025 w
(135) 4132 3025 w
11 /S f
(_) 1637 3045 w
(_____________________________________________________) 1639 3045 w
11 /LucidaSansUnicode00 f
(initial) 1775 3175 w
(read) 2108 3175 w
(1.65) 2696 3175 w
(0.90) 3169 3175 w
(6.90) 3642 3175 w
(25) 4201 3175 w
11 /S f
(_) 1637 3195 w
(_____________________________________________________) 1639 3195 w
11 /LucidaSansUnicode00 f
(indexed read) 1775 3325 w
(0.64) 2696 3325 w
(0.03) 3169 3325 w
(0.77) 3642 3325 w
(6.5) 4270 3325 w
11 /S f
(_) 1637 3345 w
(_____________________________________________________) 1639 3345 w
(\347) 1637 3345 w
(\347) 1637 3235 w
(\347) 1637 3125 w
(\347) 1637 3015 w
(\347) 1637 2905 w
(\347) 1637 2795 w
(\347) 1637 2685 w
(\347) 1637 2575 w
(\347) 2585 3345 w
(\347) 2585 3275 w
(\347) 2585 3165 w
(\347) 2585 3055 w
(\347) 2585 2945 w
(\347) 2585 2835 w
(\347) 2585 2725 w
(\347) 2992 3345 w
(\347) 2992 3275 w
(\347) 2992 3165 w
(\347) 2992 3055 w
(\347) 2992 2945 w
(\347) 2992 2835 w
(\347) 2992 2725 w
(\347) 3531 3345 w
(\347) 3531 3275 w
(\347) 3531 3165 w
(\347) 3531 3055 w
(\347) 3531 2945 w
(\347) 3531 2835 w
(\347) 3531 2725 w
(\347) 3938 3345 w
(\347) 3938 3275 w
(\347) 3938 3165 w
(\347) 3938 3055 w
(\347) 3938 2945 w
(\347) 3938 2835 w
(\347) 3938 2725 w
(\347) 4554 3345 w
(\347) 4554 3235 w
(\347) 4554 3125 w
(\347) 4554 3015 w
(\347) 4554 2905 w
(\347) 4554 2795 w
(\347) 4554 2685 w
(\347) 4554 2575 w
11 /LucidaSans-Demi f
(7.) 720 3730 w
(Future) 888 3730 w
(Work) 1292 3730 w
11 /LucidaSansUnicode00 f
(While) 720 3900 w
(Upas) 1055 3900 w
11 /LucidaSansUnicode20 f
(\031) 1317 3900 w
11 /LucidaSansUnicode00 f
(memory) 1398 3900 w
(usage) 1879 3900 w
(has) 2240 3900 w
(been) 2471 3900 w
(drastically) 2778 3900 w
(reduced,) 3366 3900 w
(it) 3878 3900 w
(is) 3997 3900 w
(still) 4132 3900 w
(a) 4372 3900 w
(work-in-progress.) 4480 3900 w
(Caching) 720 4030 w
(and) 1234 4030 w
(indexing) 1517 4030 w
(are) 2068 4030 w
(adequate) 2321 4030 w
(but) 2898 4030 w
(primitive.) 3160 4030 w
(Upas/fs) 3786 4030 w
(is) 4287 4030 w
(still) 4459 4030 w
(inconsistently) 4736 4030 w
(bypassed) 720 4160 w
(for) 1265 4160 w
(appending) 1465 4160 w
(messages) 2078 4160 w
(to) 2648 4160 w
(mail) 2803 4160 w
(boxes.) 3077 4160 w
(There) 3515 4160 w
(are) 3868 4160 w
(also) 4083 4160 w
(some) 4346 4160 w
(features) 4680 4160 w
(which) 5163 4160 w
(remain) 720 4290 w
(incomplete.) 1156 4290 w
(Finally,) 1883 4290 w
(the) 2325 4290 w
(small) 2562 4290 w
(increase) 2911 4290 w
(in) 3419 4290 w
(scale) 3585 4290 w
(brings) 3918 4290 w
(some) 4321 4290 w
(new) 4673 4290 w
(questions) 4953 4290 w
(about) 720 4420 w
(the) 1061 4420 w
(organization) 1267 4420 w
(of) 2010 4420 w
(email.) 2153 4420 w
(It) 720 4590 w
(may) 829 4590 w
(be) 1085 4590 w
(useful) 1252 4590 w
(for) 1615 4590 w
(mail) 1804 4590 w
(boxes) 2067 4590 w
(with) 2425 4590 w
(very) 2688 4590 w
(large) 2946 4590 w
(numbers) 3251 4590 w
(of) 3758 4590 w
(messages) 3903 4590 w
(to) 4463 4590 w
(divide) 4608 4590 w
(the) 4966 4590 w
(index) 5174 4590 w
(into) 720 4720 w
(fixed-size) 972 4720 w
(chunks.) 1564 4720 w
(Then) 2058 4720 w
(messages) 2369 4720 w
(could) 2936 4720 w
(be) 3272 4720 w
(read) 3446 4720 w
(into) 3726 4720 w
(a) 3977 4720 w
(fixed-sized) 4081 4720 w
(pool) 4741 4720 w
(of) 5019 4720 w
(struc\255) 5170 4720 w
(tures) 720 4850 w
(as) 1031 4850 w
(needed.) 1187 4850 w
(However) 1688 4850 w
(it) 2186 4850 w
(is) 2298 4850 w
(currently) 2425 4850 w
(hard) 2938 4850 w
(to) 3220 4850 w
(see) 3367 4850 w
(how) 3586 4850 w
(clients) 3845 4850 w
(could) 4231 4850 w
(easily) 4563 4850 w
(interface) 4903 4850 w
(a) 5411 4850 w
(mail) 720 4980 w
(box) 985 4980 w
(large) 1226 4980 w
(enough) 1532 4980 w
(for) 1971 4980 w
(this) 2162 4980 w
(technique) 2397 4980 w
(to) 2960 4980 w
(be) 3105 4980 w
(useful.) 3273 4980 w
(Currently,) 3707 4980 w
(all) 4273 4980 w
(clients) 4435 4980 w
(assume) 4819 4980 w
(that) 5261 4980 w
(it) 720 5110 w
(is) 829 5110 w
(reasonable) 953 5110 w
(to) 1572 5110 w
(allocate) 1716 5110 w
(an) 2164 5110 w
(in-core) 2330 5110 w
(data) 2761 5110 w
(structure) 3030 5110 w
(for) 3549 5110 w
(each) 3739 5110 w
(message) 4023 5110 w
(in) 4527 5110 w
(a) 4664 5110 w
(mail) 4762 5110 w
(box.) 5026 5110 w
(To) 5336 5110 w
(take) 720 5240 w
(advantage) 990 5240 w
(of) 1580 5240 w
(a) 1730 5240 w
(chunked) 1833 5240 w
(index,) 2330 5240 w
(clients) 2705 5240 w
(\(or) 3094 5240 w
(the) 3284 5240 w
(server\)) 3497 5240 w
(would) 3902 5240 w
(need) 4265 5240 w
(a) 4568 5240 w
(way) 4671 5240 w
(of) 4916 5240 w
(limiting) 5065 5240 w
(the) 720 5370 w
(number) 928 5370 w
(of) 1379 5370 w
(messages) 1525 5370 w
(considered) 2086 5370 w
(at) 2710 5370 w
(a) 2850 5370 w
(time.) 2949 5370 w
(Also,) 3294 5370 w
(for) 3598 5370 w
(such) 3789 5370 w
(large) 4075 5370 w
(mail) 4381 5370 w
(boxes,) 4646 5370 w
(it) 5040 5370 w
(would) 5151 5370 w
(be) 720 5500 w
(important) 891 5500 w
(to) 1457 5500 w
(separate) 1605 5500 w
(the) 2102 5500 w
(incoming) 2312 5500 w
(messages) 2844 5500 w
(from) 3406 5500 w
(older) 3700 5500 w
(messages) 4014 5500 w
(to) 4576 5500 w
(limit) 4723 5500 w
(the) 5001 5500 w
(work) 5211 5500 w
(required to scan for new) 720 5630 w
(messages.) 2064 5630 w
(Caching) 720 5800 w
(is) 1205 5800 w
(particularly) 1349 5800 w
(unsatisfactory.) 2005 5800 w
(Files) 2882 5800 w
(should) 3180 5800 w
(be) 3597 5800 w
(read) 3785 5800 w
(in) 4079 5800 w
(fixed-sized) 4236 5800 w
(buffers) 4910 5800 w
(so) 5349 5800 w
(maximum) 720 5930 w
(memory) 1290 5930 w
(usage) 1761 5930 w
(does) 2112 5930 w
(not) 2402 5930 w
(depend) 2614 5930 w
(on) 3049 5930 w
(the) 3220 5930 w
(size) 3427 5930 w
(of) 3676 5930 w
(the) 3820 5930 w
(largest) 4027 5930 w
(file) 4428 5930 w
(in the) 4631 5930 w
(mail) 4972 5930 w
(box.) 5234 5930 w
(Unfortunately,) 720 6060 w
(current) 1523 6060 w
(data) 1949 6060 w
(structures) 2222 6060 w
(do) 2801 6060 w
(not) 2978 6060 w
(readily) 3195 6060 w
(support) 3594 6060 w
(this.) 4050 6060 w
(In) 4358 6060 w
(practice,) 4500 6060 w
(this) 4999 6060 w
(limi\255) 5238 6060 w
(tation has not) 720 6190 w
(yet) 1496 6190 w
(been noticeable.) 1691 6190 w
(There) 720 6360 w
(are) 1077 6360 w
(also) 1296 6360 w
(a) 1563 6360 w
(few) 1675 6360 w
(features) 1914 6360 w
(that) 2401 6360 w
(need) 2663 6360 w
(to) 2976 6360 w
(be) 3136 6360 w
(completed.) 3319 6360 w
(Tracking) 4001 6360 w
(of) 4516 6360 w
(references) 4676 6360 w
(has) 5287 6360 w
(been) 720 6490 w
(added) 1034 6490 w
(to) 1417 6490 w
(marshal) 1578 6490 w
(and) 2055 6490 w
(upas/fs.) 2305 6490 w
(In) 2836 6490 w
(addition,) 2988 6490 w
(the) 3514 6490 w
(index) 3737 6490 w
(provides) 4087 6490 w
(a) 4596 6490 w
(place) 4709 6490 w
(to) 5041 6490 w
(store) 5201 6490 w
(mutable) 720 6620 w
(information) 1199 6620 w
(about) 1868 6620 w
(a) 2219 6620 w
(message.) 2325 6620 w
(These) 2907 6620 w
(capabilities) 3269 6620 w
(should) 3917 6620 w
(be) 4322 6620 w
(built) 4498 6620 w
(upon) 4785 6620 w
(to) 5102 6620 w
(pro\255) 5255 6620 w
(vide) 720 6750 w
(general) 975 6750 w
(threading and tagging capabilities.) 1408 6750 w
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(8.) 720 850 w
(Speculation) 888 850 w
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(Freed) 720 1020 w
(from) 1066 1020 w
(the) 1370 1020 w
(limitation) 1591 1020 w
(that) 2149 1020 w
(all) 2410 1020 w
(messages) 2585 1020 w
(in) 3158 1020 w
(a) 3308 1020 w
(mail) 3419 1020 w
(box) 3696 1020 w
(must) 3949 1020 w
(be) 4266 1020 w
(read) 4447 1020 w
(and) 4734 1020 w
(stored) 4982 1020 w
(in) 5372 1020 w
(memory) 720 1150 w
(before) 1191 1150 w
(a) 1572 1150 w
(single) 1668 1150 w
(message) 2021 1150 w
(may be) 2523 1150 w
(accessed, it) 2944 1150 w
(is interesting to speculate) 3600 1150 w
(on a) 5018 1150 w
(few) 5284 1150 w
(further possibilites.) 720 1280 w
(For) 720 1450 w
(example,) 931 1450 w
(it) 1462 1450 w
(may) 1576 1450 w
(be) 1837 1450 w
(useful) 2009 1450 w
(to) 2377 1450 w
(replace) 2526 1450 w
(separate) 2954 1450 w
(mail) 3452 1450 w
(boxes) 3720 1450 w
(with) 4082 1450 w
(a) 4349 1450 w
(single) 4451 1450 w
(collection) 4810 1450 w
(of) 5364 1450 w
(messages) 720 1580 w
(assigned) 1286 1580 w
(to) 1801 1580 w
(one) 1951 1580 w
(or) 2190 1580 w
(more) 2344 1580 w
(virtual) 2662 1580 w
(mail) 3040 1580 w
(boxes.) 3309 1580 w
(The) 3742 1580 w
(association) 3983 1580 w
(between) 4622 1580 w
(a) 5113 1580 w
(mes\255) 5216 1580 w
(sage) 720 1710 w
(and) 1012 1710 w
(a) 1256 1710 w
(mail) 1363 1710 w
(box) 1636 1710 w
(would) 1885 1710 w
(be) 2252 1710 w
(a) 2429 1710 w
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(\034) 2536 1710 w
11 /LucidaSansUnicode00 f
(tag.) 2577 1710 w
11 /LucidaSansUnicode20 f
(\035) 2782 1710 w
11 /LucidaSansUnicode00 f
(A) 2869 1710 w
(message) 2991 1710 w
(could) 3504 1710 w
(be) 3842 1710 w
(added) 4019 1710 w
(to) 4395 1710 w
(or) 4549 1710 w
(removed) 4707 1710 w
(from) 5217 1710 w
(one) 720 1840 w
(or) 963 1840 w
(more) 1121 1840 w
(mail) 1443 1840 w
(boxes) 1716 1840 w
(without) 2083 1840 w
(modifying) 2531 1840 w
(the) 3113 1840 w
(mdir) 3330 1840 w
(file.) 3624 1840 w
(If) 3907 1840 w
(threads) 4025 1840 w
(were) 4472 1840 w
(implemented) 4771 1840 w
(by) 720 1970 w
(tagging) 904 1970 w
(each) 1368 1970 w
(message) 1673 1970 w
(with) 2198 1970 w
(its) 2482 1970 w
(references,) 2669 1970 w
(it) 3321 1970 w
(would) 3452 1970 w
(be) 3831 1970 w
(possible) 4020 1970 w
(to) 4521 1970 w
(follow) 4687 1970 w
(threads) 5070 1970 w
(across) 720 2100 w
(mail) 1102 2100 w
(boxes,) 1370 2100 w
(even) 1767 2100 w
(to) 2057 2100 w
(messages) 2206 2100 w
(removed) 2770 2100 w
(from) 3275 2100 w
(all) 3571 2100 w
(mail) 3737 2100 w
(boxes,) 4005 2100 w
(provided) 4402 2100 w
(the) 4913 2100 w
(under\255) 5124 2100 w
(lying) 720 2230 w
(file) 1022 2230 w
(were) 1234 2230 w
(not) 1534 2230 w
(also) 1756 2230 w
(removed.) 2018 2230 w
(If) 2598 2230 w
(a) 2717 2230 w
(facility) 2824 2230 w
(for) 3222 2230 w
(adding) 3421 2230 w
(arbitrary,) 3834 2230 w
(automatic) 4371 2230 w
(tags) 4946 2230 w
(were) 5218 2230 w
(enabled,) 720 2360 w
(it) 1218 2360 w
(would) 1331 2360 w
(be) 1692 2360 w
(possible) 1863 2360 w
(to) 2346 2360 w
(tag) 2494 2360 w
(messages) 2704 2360 w
(with) 3267 2360 w
(the) 3532 2360 w
(email) 3742 2360 w
(address) 4070 2360 w
(in) 4527 2360 w
(the) 4666 2360 w
(SMTP) 4876 2360 w
(From) 5199 2360 w
(line.) 720 2490 w
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(9.) 720 2750 w
(References) 888 2750 w
11 /LucidaSansUnicode00 f
([1]D. Bernstein, ) 720 2920 w
11 /LucidaSansUnicode20 f
(\034) 1582 2920 w
11 /LucidaSansUnicode00 f
(Using maildir format) 1623 2920 w
11 /LucidaSansUnicode20 f
(\035) 2723 2920 w
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(, published online) 2764 2920 w
(at) 3758 2920 w
(http://cr.yp.to/proto/maildir.html) 720 3050 w
([2]F. Ballesteros published online) 720 3220 w
(at) 2527 3220 w
(http://lsub.org/magic/man2html/1/mails) 2664 3220 w
([3]MH Wikipedia) 720 3390 w
(entry, http://en.wikipedia.org/wiki/MH_Message_Handling_System) 1623 3390 w
([4]Lotus Notes Wikipedia) 720 3560 w
(entry, http://en.wikipedia.org/wiki/Lotus_Notes) 2079 3560 w
([5]D.) 720 3730 w
(Presotto,) 1034 3730 w
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(\034) 1564 3730 w
11 /LucidaSansUnicode00 f
(Upas) 1605 3730 w
11 /LucidaSansUnicode20 f
(\024) 1867 3730 w
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(a) 1977 3730 w
(Simpler) 2093 3730 w
(Approach) 2549 3730 w
(to) 3115 3730 w
(Network) 3279 3730 w
(Mail) 3780 3730 w
11 /LucidaSansUnicode20 f
(\035) 4000 3730 w
11 /LucidaSansUnicode00 f
(,) 4041 3730 w
(Proceedings) 4132 3730 w
(of) 4834 3730 w
(the) 4998 3730 w
(10th) 5225 3730 w
(Usenix conference, 1985.) 720 3860 w
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