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| author | yupeng <yupeng0921@gmail.com> | 2018-12-18 19:59:53 +0300 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-12-19 10:35:36 +0300 |
| commit | 604c01d567cb9ee7d19dc598272cb90ab6229a8a (patch) | |
| tree | 896081abe12f6fd5b12c79515dbc2b08457dc6f3 /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | ff8519f9e91170cd24ed503aa77d144e71bd4d92 (diff) | |
| download | linux-604c01d567cb9ee7d19dc598272cb90ab6229a8a.tar.xz | |
nvme-pci: trace SQ status on completions
Export the disk name, queue id, sq_head, sq_tail to a trace event in
completion handling.
Usage example:
cd /sys/kernel/debug/tracing/events/nvme/nvme_sq
echo 'disk=="nvme1n1"' > filter
echo 1 > enable
cat /sys/kernel/debug/tracing/trace_pipe
Signed-off-by: yupeng <yupeng0921@gmail.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Keith Busch <keith.busch@intel.com>
[hch: slight formatting tweaks, use standard nvme tracepoint
conventions]
Signed-off-by: Christoph Hellwig <hch@lst.de>
wip
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions