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Comment out the SQLITE_FCNTL_SIZE_HINT from os_unix.c since it does not

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seem to provide any performance gain there.

FossilOrigin-Name: 7d01309da658d6b658c1b2e53bbdc5112fb0a4d9
This commit is contained in:
drh
2010-05-21 18:24:06 +00:00
parent 8067adbc3f
commit c527669df5
3 changed files with 20 additions and 8 deletions
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24
manifest
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@@ -1,5 +1,8 @@
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D 2010-05-21T16:23:44 Hash: SHA1
C Comment\sout\sthe\sSQLITE_FCNTL_SIZE_HINT\sfrom\sos_unix.c\ssince\sit\sdoes\snot\s\nseem\sto\sprovide\sany\sperformance\sgain\sthere.
D 2010-05-21T18:24:07
F Makefile.arm-wince-mingw32ce-gcc fcd5e9cd67fe88836360bb4f9ef4cb7f8e2fb5a0 F Makefile.arm-wince-mingw32ce-gcc fcd5e9cd67fe88836360bb4f9ef4cb7f8e2fb5a0
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F Makefile.linux-gcc d53183f4aa6a9192d249731c90dbdffbd2c68654 F Makefile.linux-gcc d53183f4aa6a9192d249731c90dbdffbd2c68654
@@ -152,7 +155,7 @@ F src/os.c 2285265f7e8035ba77e8e8ec93adf3c3c61fc60e
F src/os.h efcc7f0072ae362b44eab8588b43a943da61504e F src/os.h efcc7f0072ae362b44eab8588b43a943da61504e
F src/os_common.h a8f95b81eca8a1ab8593d23e94f8a35f35d4078f F src/os_common.h a8f95b81eca8a1ab8593d23e94f8a35f35d4078f
F src/os_os2.c 665876d5eec7585226b0a1cf5e18098de2b2da19 F src/os_os2.c 665876d5eec7585226b0a1cf5e18098de2b2da19
F src/os_unix.c 5c53b43c846ff417504e3000d331bd5326bb0b05 F src/os_unix.c 35ace483789db8ede92acc46134930c2c4267645
F src/os_win.c 1e44ee84210b59db1e098bbbc66f6dee68e20d5f F src/os_win.c 1e44ee84210b59db1e098bbbc66f6dee68e20d5f
F src/pager.c d3284a6bbedeaa4ef3f5668af309d4381df97618 F src/pager.c d3284a6bbedeaa4ef3f5668af309d4381df97618
F src/pager.h 76466c3a5af56943537f68b1f16567101a0cd1d0 F src/pager.h 76466c3a5af56943537f68b1f16567101a0cd1d0
@@ -813,7 +816,14 @@ F tool/speedtest2.tcl ee2149167303ba8e95af97873c575c3e0fab58ff
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F tool/vdbe-compress.tcl d70ea6d8a19e3571d7ab8c9b75cba86d1173ff0f F tool/vdbe-compress.tcl d70ea6d8a19e3571d7ab8c9b75cba86d1173ff0f
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U dan U drh
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75a1130d86faf18e73cb46cda5d029f1e913e4e6 7d01309da658d6b658c1b2e53bbdc5112fb0a4d9

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src/os_unix.c
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@@ -3046,9 +3046,11 @@ static int unixFileControl(sqlite3_file *id, int op, void *pArg){
return SQLITE_OK; return SQLITE_OK;
} }
case SQLITE_FCNTL_SIZE_HINT: { case SQLITE_FCNTL_SIZE_HINT: {
#if 0 /* No performance advantage seen on Linux */
sqlite3_int64 szFile = *(sqlite3_int64*)pArg; sqlite3_int64 szFile = *(sqlite3_int64*)pArg;
unixFile *pFile = (unixFile*)id; unixFile *pFile = (unixFile*)id;
ftruncate(pFile->h, szFile); ftruncate(pFile->h, szFile);
#endif
return SQLITE_OK; return SQLITE_OK;
} }
#ifndef NDEBUG #ifndef NDEBUG