diff options
| author | Chuck Lever <[email protected]> | 2020-08-17 09:53:16 -0400 |
|---|---|---|
| committer | Jason Gunthorpe <[email protected]> | 2020-08-24 19:41:41 -0300 |
| commit | 75874b3d50717ec6a821cf4de4284822204a3574 (patch) | |
| tree | 3687242190c62b1b9e3b1ca9a2169761ea28d68f /tools/perf/scripts/python/netdev-times.py | |
| parent | b3d03daa7cd19a91266dc2cea3587dcf60e7a1f0 (diff) | |
RDMA/cm: Replace pr_debug() call sites with tracepoints
In the interest of converging on a common instrumentation infrastructure,
modernize the pr_debug() call sites added by commit 119bf81793ea ("IB/cm:
Add debug prints to ib_cm"). The new tracepoints appear in a new "ib_cma"
subsystem.
The conversion is somewhat mechanical. Someone more familiar with the
semantics of the recorded information might suggest additional data
capture.
Some benefits include:
- Tracepoints enable "always on" reporting of these errors
- The error records are structured and compact
- Tracepoints provide hooks for eBPF scripts
Sample output:
nfsd-1954 [003] 62.017901: icm_dreq_skipped: local_id=1998890974 remote_id=1129750393 state=DREQ_RCVD lap_state=LAP_UNINIT
Link: https://lore.kernel.org/r/159767239665.2968.10613294222688696646.stgit@klimt.1015granger.net
Signed-off-by: Chuck Lever <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/netdev-times.py')
0 files changed, 0 insertions, 0 deletions