Mutexes And Changes in Library Cache - HrOUG
Mutexes And Changes in Library Cache - HrOUG
Mutexes And Changes in Library Cache - HrOUG
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Latches, Hash Buckets & Data Blocks<br />
latches<br />
hash bucket<br />
array<br />
double l<strong>in</strong>ked lists of block headers<br />
DbProf.<br />
com<br />
bucket 0<br />
bucket 1<br />
bucket 2<br />
bucket 3<br />
0.2234 0.1524 ¸2.773 3.188<br />
1.2663 2.9973 3.8623 5.81 4.9162 8.2752<br />
0.72536 2.5243<br />
4.2883 1.25523 1.27377 2.3774 3.12992<br />
..........<br />
_db_block_hash_latches<br />
_db_block_hash_buckets - 1<br />
_db_block_hash_buckets<br />
6.39939 7.2993 5.1234<br />
data<br />
<strong>in</strong>dex<br />
undo<br />
www.dbprof.com - © 2012 Jože Senegačnik<br />
Oracle ACE Director<br />
3
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