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Small tweak for random read performance (we shouldn't always tell the OS that we will be doing a linear scan).

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sql/examples/ha_tina.cc:
  Small tweak for random read performance.
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unknown 2005-09-07 10:30:06 -07:00
commit 1ac26b4a6c
1 changed files with 2 additions and 1 deletions
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sql/examples/ha_tina.cc
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@ -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);