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| author | unknown <brian@zim.(none)> | 2005-09-07 10:30:06 -0700 |
|---|---|---|
| committer | unknown <brian@zim.(none)> | 2005-09-07 10:30:06 -0700 |
| commit | 1ac26b4a6cfd5cf72b39e4fda31d2bb114463ad8 (patch) | |
| tree | 312dd9743d4b854a96bfb6cfdc1cbc877fc2a0ac /sql/examples | |
| parent | 4fdf0ce3803f42d20681ed332888b16042b33f8f (diff) | |
| download | mariadb-git-1ac26b4a6cfd5cf72b39e4fda31d2bb114463ad8.tar.gz | |
Small tweak for random read performance (we shouldn't always tell the OS that we will be doing a linear scan).
sql/examples/ha_tina.cc:
Small tweak for random read performance.
Diffstat (limited to 'sql/examples')
| -rw-r--r-- | sql/examples/ha_tina.cc | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sql/examples/ha_tina.cc b/sql/examples/ha_tina.cc index bbcdfb0dafb..8a9aa91c680 100644 --- a/sql/examples/ha_tina.cc +++ b/sql/examples/ha_tina.cc @@ -609,7 +609,8 @@ int ha_tina::rnd_init(bool scan) records= 0; chain_ptr= chain; #ifdef HAVE_MADVISE - (void)madvise(share->mapped_file,share->file_stat.st_size,MADV_SEQUENTIAL); + if (scan) + (void)madvise(share->mapped_file,share->file_stat.st_size,MADV_SEQUENTIAL); #endif DBUG_RETURN(0); |