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Code Activity

Speedups:

Browse Source 
- Optimize away calls to hp_rec_hashnr() by cashing hash
- Try to get more rows / block (to minimize overhead of HP_PTRS) in HEAP tables.


storage/heap/_check.c:
  Optimize away calls to hp_rec_hashnr() by cashing hash.
  Print cleanups
storage/heap/heapdef.h:
  Added place to hold calculated hash value for row
storage/heap/hp_create.c:
  Try to get more rows / block (to minimize overhead of HP_PTRS)
storage/heap/hp_delete.c:
  Optimize away calls to hp_rec_hashnr() by cashing hash.
storage/heap/hp_hash.c:
  Optimize away calls to hp_rec_hashnr() by cashing hash.
  Remove some not needed DBUG_PRINT
storage/heap/hp_test2.c:
  Increased max table size as now heap tables takes a bit more space (a few %)
storage/heap/hp_write.c:
  Optimize away calls to hp_rec_hashnr() by cashing hash.
  Remove duplicated code
  More DBUG_PRINT
storage/maria/ma_create.c:
  More DBUG_PRINT
This commit is contained in:
Michael Widenius
2012-03-23 18:11:29 +02:00
parent da9aabbbb6
commit de1765fb64
8 changed files with 80 additions and 46 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
storage/heap/hp_delete.c
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@ -149,8 +149,9 @@ int hp_delete_key(HP_INFO *info, register HP_KEYDEF *keyinfo,
else if (pos->next_key)
{
empty=pos->next_key;
pos->ptr_to_rec=empty->ptr_to_rec;
pos->next_key=empty->next_key;
pos->ptr_to_rec= empty->ptr_to_rec;
pos->next_key= empty->next_key;
pos->hash_of_key= empty->hash_of_key;
}
else
keyinfo->hash_buckets--;
@ -159,7 +160,7 @@ int hp_delete_key(HP_INFO *info, register HP_KEYDEF *keyinfo,
DBUG_RETURN (0);
/* Move the last key (lastpos) */
lastpos_hashnr = hp_rec_hashnr(keyinfo, lastpos->ptr_to_rec);
lastpos_hashnr= lastpos->hash_of_key;
/* pos is where lastpos should be */
pos=hp_find_hash(&keyinfo->block, hp_mask(lastpos_hashnr, share->blength,
share->records));
@ -168,7 +169,7 @@ int hp_delete_key(HP_INFO *info, register HP_KEYDEF *keyinfo,
empty[0]=lastpos[0];
DBUG_RETURN(0);
}
pos_hashnr = hp_rec_hashnr(keyinfo, pos->ptr_to_rec);
pos_hashnr= pos->hash_of_key;
/* pos3 is where the pos should be */
pos3= hp_find_hash(&keyinfo->block,
hp_mask(pos_hashnr, share->blength, share->records));