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Change the default lookaside configuration from 500 slots of 128 bytes each to 125 slots of 512 bytes each. This uses the same amount of memory (64,000 bytes) but seems to perform much better in test applications.

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FossilOrigin-Name: 52a12e47de88744187bd1c71f2820885cde414a8
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drh
2016-12-21 21:26:58 +00:00
parent a582b01698
commit cdfffed790
3 changed files with 9 additions and 9 deletions
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12
manifest
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@@ -1,5 +1,5 @@
C Simplifications\sto\sthe\sway\sUnpackedRecord\sobjects\sare\sallocated.\s\sSmaller\nand\sfaster\scode\sthat\salso\sfixes\sa\ssubtle\s(currently\sunreachable)\sbug. C Change\sthe\sdefault\slookaside\sconfiguration\sfrom\s500\sslots\sof\s128\sbytes\seach\sto\s125\sslots\sof\s512\sbytes\seach.\s\sThis\suses\sthe\ssame\samount\sof\smemory\s(64,000\sbytes)\sbut\sseems\sto\sperform\smuch\sbetter\sin\stest\sapplications.
D 2016-12-21T19:45:54.698 D 2016-12-21T21:26:58.399
F Makefile.in 41bd4cad981487345c4a84081074bcdb876e4b2e F Makefile.in 41bd4cad981487345c4a84081074bcdb876e4b2e
F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434 F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
F Makefile.msc b8ca53350ae545e3562403d5da2a69cec79308da F Makefile.msc b8ca53350ae545e3562403d5da2a69cec79308da
@@ -345,7 +345,7 @@ F src/expr.c c7c11fbe8bd4d27d04f1370efcce5a05b4fca229
F src/fault.c 460f3e55994363812d9d60844b2a6de88826e007 F src/fault.c 460f3e55994363812d9d60844b2a6de88826e007
F src/fkey.c 2e9aabe1aee76273aff8a84ee92c464e095400ae F src/fkey.c 2e9aabe1aee76273aff8a84ee92c464e095400ae
F src/func.c 43916c1d8e6da5d107d91d2b212577d4f69a876a F src/func.c 43916c1d8e6da5d107d91d2b212577d4f69a876a
F src/global.c 235021a21ee2cb52b304589f8f9e85a36bbe24fa F src/global.c dcdb89f30b7aa531c5660030af106bc5bc48ef2e
F src/hash.c 63d0ee752a3b92d4695b2b1f5259c4621b2cfebd F src/hash.c 63d0ee752a3b92d4695b2b1f5259c4621b2cfebd
F src/hash.h ab34c5c54a9e9de2e790b24349ba5aab3dbb4fd4 F src/hash.h ab34c5c54a9e9de2e790b24349ba5aab3dbb4fd4
F src/hwtime.h 747c1bbe9df21a92e9c50f3bbec1de841dc5e5da F src/hwtime.h 747c1bbe9df21a92e9c50f3bbec1de841dc5e5da
@@ -1539,7 +1539,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
P 165c044686212fbf7182dd560ad1e57eb4cc9838 P f7ab01f254cd9d7006b8dec29adb234a671b8e6f
R 4dcc327309935c00dd451588970c060d R 410ebc8fd4cf49ee7979c021d6ce32fb
U drh U drh
Z 2858688c4db6360d8c3b1c8fd6aab8f2 Z 1212e279b84c412f5a6bde29137a4a85

2
manifest.uuid
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@@ -1 +1 @@
f7ab01f254cd9d7006b8dec29adb234a671b8e6f 52a12e47de88744187bd1c71f2820885cde414a8

4
src/global.c
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@@ -181,8 +181,8 @@ SQLITE_WSD struct Sqlite3Config sqlite3Config = {
SQLITE_ALLOW_COVERING_INDEX_SCAN, /* bUseCis */ SQLITE_ALLOW_COVERING_INDEX_SCAN, /* bUseCis */
0x7ffffffe, /* mxStrlen */ 0x7ffffffe, /* mxStrlen */
0, /* neverCorrupt */ 0, /* neverCorrupt */
128, /* szLookaside */ 512, /* szLookaside */
500, /* nLookaside */ 125, /* nLookaside */
SQLITE_STMTJRNL_SPILL, /* nStmtSpill */ SQLITE_STMTJRNL_SPILL, /* nStmtSpill */
{0,0,0,0,0,0,0,0}, /* m */ {0,0,0,0,0,0,0,0}, /* m */
{0,0,0,0,0,0,0,0,0}, /* mutex */ {0,0,0,0,0,0,0,0,0}, /* mutex */