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Small performance and size optimization in sqlite3WalFindFrame().

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FossilOrigin-Name: 03f2e78899fad99b0a0951b3a408268276954d4cd785389ed9a0192c9217f6fe
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drh
2019-04-17 21:12:05 +00:00
parent e551b51472
commit 680f0fe32a
3 changed files with 10 additions and 10 deletions
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manifest
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@@ -1,5 +1,5 @@
C Fix\sa\stypo\sin\sthe\sCLI\shelp\soutput\sfor\sthe\s".dump"\scommand. C Small\sperformance\sand\ssize\soptimization\sin\ssqlite3WalFindFrame().
D 2019-04-17T13:58:07.370 D 2019-04-17T21:12:05.934
F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -601,7 +601,7 @@ F src/vdbesort.c 66592d478dbb46f19aed0b42222325eadb84deb40a90eebe25c6e7c1d8468f4
F src/vdbetrace.c 79d6dbbc479267b255a7de8080eee6e729928a0ef93ed9b0bfa5618875b48392 F src/vdbetrace.c 79d6dbbc479267b255a7de8080eee6e729928a0ef93ed9b0bfa5618875b48392
F src/vtab.c 4c5959e00b7a142198d178e3a822f4e05f36f2d1a3c57657373f9487154fc06b F src/vtab.c 4c5959e00b7a142198d178e3a822f4e05f36f2d1a3c57657373f9487154fc06b
F src/vxworks.h d2988f4e5a61a4dfe82c6524dd3d6e4f2ce3cdb9 F src/vxworks.h d2988f4e5a61a4dfe82c6524dd3d6e4f2ce3cdb9
F src/wal.c 9eccc7ebb532a7b0fd3cabc16cff576b9afa763472272db67d84fb8cec96f5c0 F src/wal.c b09a2a9cab50efa08451a8c81d47052120ad5da174048c6d0b08d405384abdf2
F src/wal.h 606292549f5a7be50b6227bd685fa76e3a4affad71bb8ac5ce4cb5c79f6a176a F src/wal.h 606292549f5a7be50b6227bd685fa76e3a4affad71bb8ac5ce4cb5c79f6a176a
F src/walker.c 7607f1a68130c028255d8d56094ea602fc402c79e1e35a46e6282849d90d5fe4 F src/walker.c 7607f1a68130c028255d8d56094ea602fc402c79e1e35a46e6282849d90d5fe4
F src/where.c ff2955dc2743c1af05ba5a8232ab72724d9a63b76dbee256368f40fd3ef82db5 F src/where.c ff2955dc2743c1af05ba5a8232ab72724d9a63b76dbee256368f40fd3ef82db5
@@ -1818,7 +1818,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
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F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
P 2bda9dc41c07092ae37d0c6001c1271e0622bfff7151201fc2bb4c95422c087b P 57638248de147efe8d663b3ae1389f590c7b2b7225ecfe295699d68c2893cd09
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manifest.uuid
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@@ -1 +1 @@
57638248de147efe8d663b3ae1389f590c7b2b7225ecfe295699d68c2893cd09 03f2e78899fad99b0a0951b3a408268276954d4cd785389ed9a0192c9217f6fe

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src/wal.c
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@@ -2908,9 +2908,9 @@ int sqlite3WalFindFrame(
} }
nCollide = HASHTABLE_NSLOT; nCollide = HASHTABLE_NSLOT;
for(iKey=walHash(pgno); sLoc.aHash[iKey]; iKey=walNextHash(iKey)){ for(iKey=walHash(pgno); sLoc.aHash[iKey]; iKey=walNextHash(iKey)){
u32 iFrame = sLoc.aHash[iKey] + sLoc.iZero; u32 iH = sLoc.aHash[iKey];
if( iFrame<=iLast && iFrame>=pWal->minFrame u32 iFrame = iH + sLoc.iZero;
&& sLoc.aPgno[sLoc.aHash[iKey]]==pgno ){ if( iFrame<=iLast && iFrame>=pWal->minFrame && sLoc.aPgno[iH]==pgno ){
assert( iFrame>iRead || CORRUPT_DB ); assert( iFrame>iRead || CORRUPT_DB );
iRead = iFrame; iRead = iFrame;
} }