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Overview
Comment: | Buffer updates per-transaction rather than per-update. If lots of updates happen within a single transaction, there was a lot of wasted encode/decode overhead due to segment merges. This code buffers updates in memory and writes out larger level-0 segments. It only works when documents are presented in ascending order by docid. Comparing a test set running 100 documents per transaction, the total runtime is cut almost in half. (CVS 3751) |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
0229cba69698ab4b44f8583ef50a87c4 |
User & Date: | shess 2007-03-29 18:41:04.000 |
Context
2007-03-29
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18:46 | Add the sqlite3_clear_bindings() API to the loadable extension interface. Ticket #2135. (CVS 3752) (check-in: 3111b43ec3 user: drh tags: trunk) | |
18:41 | Buffer updates per-transaction rather than per-update. If lots of updates happen within a single transaction, there was a lot of wasted encode/decode overhead due to segment merges. This code buffers updates in memory and writes out larger level-0 segments. It only works when documents are presented in ascending order by docid. Comparing a test set running 100 documents per transaction, the total runtime is cut almost in half. (CVS 3751) (check-in: 0229cba696 user: shess tags: trunk) | |
18:19 | Change the name of PAGER_SECTOR_SIZE to SQLITE_DEFAULT_SECTOR_SIZE. Make the new OS-layer interface routine for finding sector size optional. (CVS 3750) (check-in: 0fb9af1d6e user: drh tags: trunk) | |
Changes
Changes to ext/fts2/fts2.c.
Added test/fts2k.test.