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. Paul. -- 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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