* Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> wrote: > On Thu, 2009-05-28 at 21:09 +1000, Paul Mackerras wrote: > > tip-bot for Ingo Molnar writes: > > > > > perf stat: handle Ctrl-C > > > > > > Before this change, if a long-running perf stat workload was Ctrl-C-ed, > > > the utility exited without displaying statistics. > > > > > > After the change, the Ctrl-C gets propagated into the workload (and > > > causes its early exit there), but perf stat itself will still continue > > > to run and will display counter results. > > > > > > This is useful to run open-ended workloads, let them run for > > > a while, then Ctrl-C them to get the stats. > > > > Unfortunately it means that if you do e.g. > > > > $ while true; do perf stat something; done > > > > it's impossible to kill the loop with ctrl-C. To fix this we need to > > make perf stat kill itself with the signal after printing the results, > > so bash sees the died-due-to-signal exit status and stops the loop. > > Yep, just ran into the same.. > > ^Z kill $! worked though, but that's not ideal. would be nice to have a fix for this - i suspect people will run into this frequently. Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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