performance regression when running sysbench with inno log turned on
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Drizzle |
Invalid
|
High
|
Monty Taylor |
Bug Description
when running the sysbench with inno replication enabled, it seems that each subsequent run the results get slower. In the results the first run at each concurrency level is significantly faster then the last. This looks like me like a possible memory leak, but our tests don't show one.
drizzle> select concurrency, tps from sysbench_
+------
| concurrency | tps |
+------
| 16 | 1021.27 |
| 16 | 776.30 |
| 16 | 644.29 |
| 32 | 1134.56 |
| 32 | 846.17 |
| 32 | 685.41 |
| 64 | 1203.83 |
| 64 | 875.96 |
| 64 | 715.35 |
| 128 | 1247.30 |
| 128 | 938.70 |
| 128 | 746.51 |
| 256 | 1258.96 |
| 256 | 938.50 |
| 256 | 726.87 |
| 512 | 1110.94 |
| 512 | 850.06 |
| 512 | 684.00 |
+------
Changed in drizzle: | |
milestone: | 2011-02-28 → 2011-03-14 |
Changed in drizzle: | |
milestone: | 2011-03-14 → 2011-04-11 |
Monty, Brian thought you may know why this is happening, if thats not the case move it to unassigned for now.