documentation:technical_docs:performance
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| documentation:technical_docs:performance [2019/07/09 18:04] – [Where is the bottleneck ?] olivier | documentation:technical_docs:performance [2019/07/17 17:32] – [Where is the bottleneck ?] olivier | ||
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| + | === Lock contention source === | ||
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| + | To identifying lock contention source (like if function lock_delay or __mtx_lock_sleep was quite high from the pcm output), you can try to search which lock is contended and why with lockstat. | ||
| + | |||
| + | You can generate 2 output: | ||
| + | * contented locks broken down by type: < | ||
| + | * stacks associated with the lock contention to identify the source: < | ||
documentation/technical_docs/performance.txt · Last modified: 2020/01/18 01:04 by olivier