| commit | 3d916a443e97169a3d88765c4e0b07ac813f439f | |
| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | |
| Thu, 10 Aug 2017 21:33:17 +0000 (10 14:33 -0700) | ||
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | |
| Mon, 9 Oct 2017 21:23:36 +0000 (9 14:23 -0700) | ||
| tree | 2014eaee2f3b3a8a2fcd1311413cbf48c1e44f3c | treesnapshot (tar.gz zip) |
| parent | dfa0ee48ef86f79430d2be9d1e2e1b509abb3cce | commitdiff |
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>
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>
| Documentation/RCU/stallwarn.txt | diffblobblamehistory |