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Overview
Comment: | Update the change log to include the latest revisions. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
cb6d3fd5fe821c1542477158a7985f46 |
User & Date: | drh 2014-09-20 00:56:29.297 |
Context
2014-09-21
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16:57 | Fix typos. (check-in: d2dedc4ab1 user: drh tags: trunk) | |
2014-09-20
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00:56 | Update the change log to include the latest revisions. (check-in: cb6d3fd5fe user: drh tags: trunk) | |
2014-09-17
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04:03 | Add the "vsix" mimetype to the althttpd.c server. (check-in: 881c3a3aed user: drh tags: trunk) | |
Changes
Changes to pages/changes.in.
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16 17 18 19 20 21 22 | global nChng aChng set aChng($nChng) [list $date $desc $options] incr nChng } chng {2014-11-?? (3.8.7)} { <p><b>Performance Enhancements:</b> | | > > | > > > > > > > > > | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 | global nChng aChng set aChng($nChng) [list $date $desc $options] incr nChng } chng {2014-11-?? (3.8.7)} { <p><b>Performance Enhancements:</b> <li>Dozens and dozens of micro-optimizations result in 10.5% more work for the same number of CPU cycles relative to the previous release. The cumulative performance increase since [version 3.7.17] is 50.2%. (Measured using [http://valgrind.org/docs/manual/cg-manual.html|cachegrind] on the [http://www.sqlite.org/src/artifact/83f6b3318f7ee|speedtest1.c] workload on Ubuntu 13.10 x64 with gcc 4.8.1 and -Os. Your performance may vary.) <li>Provide the ability for the sorter to start and use auxiliary helper threads in order to increase real-time response. This feature is off by default and may be enabled using the [PRAGMA threads] command or the [SQLITE_DEFAULT_WORKER_THREADS] compile-time option. <li>Enhance the [skip-scan] optimization so that it is able to skip index terms that occur in the middle of the index, not just as the left-hand side of the index. <li>The query planner is now able to do a better job of understanding constants that occur inside of [CAST] operators. <li>Added new interfaces with 64-bit length parameters: [sqlite3_malloc64()], [sqlite3_realloc64()], [sqlite3_bind_blob64()], [sqlite3_result_blob64()], [sqlite3_bind_text64()], and [sqlite3_result_text64()]. <li>Added the new interface [sqlite3_msize()] that returns the size of a memory allocation obtained from [sqlite3_malloc64()] and its variants. <p><b>New Features:</b> <li>Added the [SQLITE_LIMIT_WORKER_THREADS] option to [sqlite3_limit()] and [PRAGMA threads] command for configuring the number of available worker threads. <li>Added new options to the [command-line shell] for configuring auxiliary memory usage: --pagecache, --lookaside, and --scratch. <p><b>Bug Fixes:</b> <li>Fix a bug in the [partial index] implementation that might result in an incorrect |
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