From: drh <drh@noemail.net>
Date: Fri, 21 May 2010 18:24:06 +0000 (+0000)
Subject: Comment out the SQLITE_FCNTL_SIZE_HINT from os_unix.c since it does not
X-Git-Tag: version-3.7.2~351
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c527669df560befda372dff4af13dfafd307a52e;p=thirdparty%2Fsqlite.git

Comment out the SQLITE_FCNTL_SIZE_HINT from os_unix.c since it does not
seem to provide any performance gain there.

FossilOrigin-Name: 7d01309da658d6b658c1b2e53bbdc5112fb0a4d9
---

diff --git a/manifest b/manifest
index b5c7007617..26c17a3bc3 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,8 @@
-C Correct\san\soff-by-one\sbug\sin\sthe\sprevious\scommit.
-D 2010-05-21T16:23:44
+-----BEGIN PGP SIGNED MESSAGE-----
+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.in a5cad1f8f3e021356bfcc6c77dc16f6f1952bbc3
 F Makefile.linux-gcc d53183f4aa6a9192d249731c90dbdffbd2c68654
@@ -152,7 +155,7 @@ F src/os.c 2285265f7e8035ba77e8e8ec93adf3c3c61fc60e
 F src/os.h efcc7f0072ae362b44eab8588b43a943da61504e
 F src/os_common.h a8f95b81eca8a1ab8593d23e94f8a35f35d4078f
 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/pager.c d3284a6bbedeaa4ef3f5668af309d4381df97618
 F src/pager.h 76466c3a5af56943537f68b1f16567101a0cd1d0
@@ -813,7 +816,14 @@ F tool/speedtest2.tcl ee2149167303ba8e95af97873c575c3e0fab58ff
 F tool/speedtest8.c 2902c46588c40b55661e471d7a86e4dd71a18224
 F tool/speedtest8inst1.c 293327bc76823f473684d589a8160bde1f52c14e
 F tool/vdbe-compress.tcl d70ea6d8a19e3571d7ab8c9b75cba86d1173ff0f
-P 36795c2b23a78978528cace193e386138adacd41
-R 63c928b9ccf2140d57615bbbd5e376ff
-U dan
-Z ffdf9334b2c259a667ae34031d21c40b
+P 75a1130d86faf18e73cb46cda5d029f1e913e4e6
+R 839c593a17a6b567af49cdb7ef23c4db
+U drh
+Z 8d7556ec9f9935e65fbd17fdc1af5967
+-----BEGIN PGP SIGNATURE-----
+Version: GnuPG v1.4.6 (GNU/Linux)
+
+iD8DBQFL9s/KoxKgR168RlERAuA2AJ4qgUiS8IHtHs0yl0ksOmtgd7JGxQCbBhTM
+nKBnhjb7e+PupUPnzd4kGOI=
+=H7pO
+-----END PGP SIGNATURE-----
diff --git a/manifest.uuid b/manifest.uuid
index a8ae2d038b..745e064808 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-75a1130d86faf18e73cb46cda5d029f1e913e4e6
\ No newline at end of file
+7d01309da658d6b658c1b2e53bbdc5112fb0a4d9
\ No newline at end of file
diff --git a/src/os_unix.c b/src/os_unix.c
index 0a302a455c..6cb594478f 100644
--- a/src/os_unix.c
+++ b/src/os_unix.c
@@ -3046,9 +3046,11 @@ static int unixFileControl(sqlite3_file *id, int op, void *pArg){
       return SQLITE_OK;
     }
     case SQLITE_FCNTL_SIZE_HINT: {
+#if 0 /* No performance advantage seen on Linux */
       sqlite3_int64 szFile = *(sqlite3_int64*)pArg;
       unixFile *pFile = (unixFile*)id;
       ftruncate(pFile->h, szFile);
+#endif
       return SQLITE_OK;
     }
 #ifndef NDEBUG