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=Troubleshooting= |
=Troubleshooting= |
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==IO Issues== |
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* [https://askubuntu.com/questions/33640/kworker-what-is-it-and-why-is-it-hogging-so-much-cpu/422151#422151 Kworker, what is it and why is it hogging so much CPU?] |
* [https://askubuntu.com/questions/33640/kworker-what-is-it-and-why-is-it-hogging-so-much-cpu/422151#422151 Kworker, what is it and why is it hogging so much CPU?] |
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* [https://perf.wiki.kernel.org/index.php/Tutorial#Sampling_with_perf_record Perf tutorial] - |
* [https://perf.wiki.kernel.org/index.php/Tutorial#Sampling_with_perf_record Perf tutorial] - |
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./tpoint -H block:block_rq_insert |
./tpoint -H block:block_rq_insert |
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==Slow login issues== |
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* [https://www.youtube.com/watch?v=GsMs3n8CB6g Give me 15 minutes and I'll change your view of Linux tracing] 14min |
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execsnoop |
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Revision as of 04:57, 25 May 2017
Monitoring
Troubleshooting
IO Issues
sudo perf record -g -a sleep 10
./tpoint -H block:block_rq_insert
Slow login issues
execsnoop