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| author |   Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2017-08-10 14:33:17 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2017-10-09 14:23:36 -0700 |
| commit | 3d916a443e97169a3d88765c4e0b07ac813f439f (patch) | |
| tree | 2014eaee2f3b3a8a2fcd1311413cbf48c1e44f3c /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | documentation: Long-running irq handlers can stall RCU grace periods (diff) | |
| download | linux-dev-3d916a443e97169a3d88765c4e0b07ac813f439f.tar.xz linux-dev-3d916a443e97169a3d88765c4e0b07ac813f439f.zip | |
documentation: Slow systems can stall RCU grace periods
If a fast system has a worst-case grace-period duration of (say) ten
seconds, then running the same workload on a system ten times as slow
will get you an RCU CPU stall warning given default stall-warning
timeout settings. This commit therefore adds this possibility to
stallwarn.txt.
Reported-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
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