Details
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Bug
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Resolution: Done
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Critical
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None
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6.5.0
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Triaged
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Unknown
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KV-Engine Mad-Hatter GA
Description
There is a 16% throughput regression in test "KV : Pillowfight, 80/20 R/W, 256B binary items" between builds 4772 and 4788:
Build | Max Throughput (ops/s) | URL |
---|---|---|
6.5.0-4788 | 3,111,731 | http://perf.jenkins.couchbase.com/job/triton/28515/ |
6.5.0-4777 | 2,637,567 | http://perf.jenkins.couchbase.com/job/triton/28432 |
6.5.0-4772 | 3,617,303 | http://perf.jenkins.couchbase.com/job/triton/28435/ |
6.5.0-4766 | 3,648,594 | http://perf.jenkins.couchbase.com/job/triton/28413 |
(This is reduced from an initial regression of 38% between 4772 and 4777; build 4788 lowers the priority of the Writer threads which reduces the impact on the front-end threads).
Side-by-side graphs: http://cbmonitor.sc.couchbase.com/reports/html/?snapshot=triton_650-4772_access_bfcb&snapshot=triton_650-4788_access_9395
Attachments
Issue Links
For Gerrit Dashboard: MB-36827 | ||||||
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# | Subject | Branch | Project | Status | CR | V |
117581,2 | MB-36827: toy-daver.xml: Use kv_engine mad-hatter-bufferevent | master | manifest | Status: MERGED | +2 | +1 |
117594,2 | MB-36827: toy-daver.xml: Use kv_engine/mad-hatter-low_pri_writer | master | manifest | Status: MERGED | +2 | +1 |
117651,5 | MB-36723: Set Writer threads to minimum priority | mad-hatter | kv_engine | Status: MERGED | +2 | +1 |
117717,2 | MB-36827: Reset toy-daver.xml to 4788 | master | manifest | Status: MERGED | +2 | +1 |
117718,2 | MB-36827: toy-daver.xml: sized_delete_hook experiment | master | manifest | Status: MERGED | +2 | +1 |
117732,2 | MB-36827: toy-daver.xml: fbstring experiment | master | manifest | Status: MERGED | +2 | +1 |
117809,1 | MB-36827: Restore default num_shards to 4 | mad-hatter | kv_engine | Status: ABANDONED | +2 | -1 |
192736,8 | MB-56032 [2/4]: Set AuxIO threads to minimum priority | neo | kv_engine | Status: MERGED | +2 | +1 |