Indexing Mail faster
Thomas Leuxner
tlx at leuxner.net
Sat Jan 24 19:04:08 UTC 2015
* Kevin Laurie <superinterstellar at gmail.com> 2015.01.24 19:41:
> Currently the time it takes to search 25,000mails is 4mins. If indexed how
> much faster are we looking at?
With a current version of Dovecot a search is pretty fast _without_ using external indexes. I have a view defined (virtual plugin) with around 22.000 messages in it, and searching the full view only takes 2.5 seconds:
$ /usr/lib/dovecot/imap -u tlx at leuxner.net
* PREAUTH [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS THREAD=ORDEREDSUBJECT MULTIAPPEND URL-PARTIAL CATENATE UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS SPECIAL-USE BINARY MOVE NOTIFY QUOTA ACL RIGHTS=texk] Logged in as tlx at leuxner.net
a select "Virtual/Postfix-Users"
* FLAGS (\Answered \Flagged \Deleted \Seen \Draft Old)
* OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft Old \*)] Flags permitted.
* 22094 EXISTS
* 0 RECENT
* OK [UIDVALIDITY 1420123174] UIDs valid
* OK [UIDNEXT 44036] Predicted next UID
* OK [HIGHESTMODSEQ 679] Highest
a OK [READ-WRITE] Select completed (0.028 secs).
b search charset utf-8 body "SQL"
* SEARCH 51 52 54 83 87 102 108 126 172 173 195 223 234 238 249 250 252 254 260 263 268 274 293 294 316 317 324 343 412 414 431 432 434 435 436 438 439 440 441 442 443 450 451 454 457 458 464 478 493 496 497 505 590 617 619 625 628 632 636 637 638 639 644 645 646 650 655 657 659 671 676 677 699 702 757 759 762 767 769 770 790 791 792 793 796 799 839 840 841 843 844 845 846 847 848 849 850 864 868 882 905 907 929 953 955 959 1129 1133 1136 1137 1138 1139 1140 1143 1145 1168 1174 1175 1176 1177 1178 1179 1182 1205 1208 1244 1247 1248 1251 1316 1320 1334 1336 1352 1356 1392 1394 1395 1397 1398 1403 1407 1409 1410 1411 1433 1434 1435 1451 1468 1469 1470 1511 1512 1546 1547 1548 1560 1561 1562 1563 1567 1569 1570 1574 1578 1587 1588 1590 1601 1606 1648 1661 1669 1670 1671 1726 1748 1749 1750 1751 1752 1753 1755 1771 1773 1774 1792 1800 1808 1819 1822 1850 1885 1913 1932 1933 1980 1982 1999 2004 2026 2102 2104 2144 2145 2162 2184 2192 2193 2194 2204 2205 2217 2237 2272 2336 2337 2339 2341 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b OK Search completed (2.493 secs).
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