2b4735f1b3
The change makes peakmem_tracker list processes that lock memory pages from swapping to disk. It may be helpful when debugging oom-killer job failures in gate in case when dstat shows that swap is not fully used when oom-killer is triggered. The peakmem_tracker service was renamed into memory_tracker to reflect its new broader scope. Needed-By: I5862d92478397eac2e61b8a61ce3437b698678be Change-Id: I1dca120448ee87930fe903fd81277b58efaefc92
44 lines
1.1 KiB
Bash
44 lines
1.1 KiB
Bash
#!/bin/bash
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#
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# lib/dstat
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# Functions to start and stop dstat
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# Dependencies:
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#
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# - ``functions`` file
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# ``stack.sh`` calls the entry points in this order:
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#
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# - start_dstat
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# - stop_dstat
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# Save trace setting
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_XTRACE_DSTAT=$(set +o | grep xtrace)
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set +o xtrace
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# start_dstat() - Start running processes, including screen
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function start_dstat {
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# A better kind of sysstat, with the top process per time slice
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run_process dstat "$TOP_DIR/tools/dstat.sh $LOGDIR"
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# To enable memory_tracker add:
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# enable_service memory_tracker
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# to your localrc
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run_process memory_tracker "$TOP_DIR/tools/memory_tracker.sh"
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# remove support for the old name when it's no longer used (sometime in Queens)
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if is_service_enabled peakmem_tracker; then
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deprecated "Use of peakmem_tracker in devstack is deprecated, use memory_tracker instead"
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run_process peakmem_tracker "$TOP_DIR/tools/memory_tracker.sh"
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fi
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}
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# stop_dstat() stop dstat process
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function stop_dstat {
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stop_process dstat
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stop_process memory_tracker
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}
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# Restore xtrace
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$_XTRACE_DSTAT
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