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Avoid excess syncs when padding a transaction in a WAL. 

FossilOrigin-Name: 1f24ae716df6232de768e245ea990049deee3c22
This commit is contained in:
drh 2011-12-23 13:32:07 +00:00
parent cc8d10a0fd
commit 4e5e108e83
3 changed files with 9 additions and 8 deletions
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12
manifest
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@ -1,5 +1,5 @@
C Merge\sthe\sPOWERSAFE_OVERWRITE\sfeatures\sand\sthe\suse\sof\sstatvfs()\sfrom\sthe\nstatvfs\sbranch\sinto\strunk.
D 2011-12-23T02:07:10.640
C Avoid\sexcess\ssyncs\swhen\spadding\sa\stransaction\sin\sa\sWAL.
D 2011-12-23T13:32:07.917
F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
F Makefile.in 5b4a3e12a850b021547e43daf886b25133b44c07
F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@ -250,7 +250,7 @@ F src/vdbemem.c 2fc78b3e0fabcc1eaa23cd79dd2e30e6dcfe1e56
F src/vdbesort.c 468d43c057063e54da4f1988b38b4f46d60e7790
F src/vdbetrace.c d6e50e04e1ec498150e519058f617d91b8f5c843
F src/vtab.c e9318d88feac85be8e27ee783ac8f5397933fc8a
F src/wal.c 66e2afeec77933f80c8098cfb3c0b29bc875de0f
F src/wal.c 4800adb021db953138eafdda825f95bc050e5b98
F src/wal.h 42f8313f7aaf8913e2d1fdf7b47025c23491ea1d
F src/walker.c 3112bb3afe1d85dc52317cb1d752055e9a781f8f
F src/where.c af623942514571895818b9b7ae11db95ae3b3d88
@ -986,7 +986,7 @@ F tool/tostr.awk e75472c2f98dd76e06b8c9c1367f4ab07e122d06
F tool/vdbe-compress.tcl d70ea6d8a19e3571d7ab8c9b75cba86d1173ff0f
F tool/warnings-clang.sh 9f406d66e750e8ac031c63a9ef3248aaa347ef2a
F tool/warnings.sh fbc018d67fd7395f440c28f33ef0f94420226381
P 83d26b9a9115eadac9e59a33d608bca0ab2519e3 6191c5e45175f5c6040e891843b0725a929d6dd7
R 9e1524ff0804966ed866a28455ef991b
P 2370d70eb51d2259aaa8073d861ab79d6637cbd9
R 070cfae8b4f17992d010f84eb7fc87cd
U drh
Z 88029f358469c654bea2978d031e29f2
Z ce9eb9870fa6375b9586d00c63492f9d

2
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@ -1 +1 @@
2370d70eb51d2259aaa8073d861ab79d6637cbd9
1f24ae716df6232de768e245ea990049deee3c22

3
src/wal.c
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@ -2829,8 +2829,9 @@ int sqlite3WalFrames(
iOffset += szFrame;
nExtra++;
}
}else{
rc = sqlite3OsSync(w.pFd, sync_flags & SQLITE_SYNC_MASK);
}
rc = sqlite3OsSync(w.pFd, sync_flags & SQLITE_SYNC_MASK);
}
/* If this frame set completes the first transaction in the WAL and