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Differential D29887

pmcstat: set initial counter value to zero
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Authored by mhorne on Apr 21 2021, 4:43 PM.
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F161155369: D29887.diff
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jkoshy_users.sourceforge.net
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emaste
mmacy
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Commits
rG112e30301846: pmcstat: set initial counter value to zero
rGedcf9e59c356: pmcstat: set initial counter value to zero
Summary

For an infrequent event, pmcstat may report (u_long)-1 for CPUs where
the counter was never incremented. Just set this to zero, instead.

ev->ev_count is passed as the count argument to pmc_allocate(3), but
this wasn't always the case.

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Repository
rS FreeBSD src repository - subversion
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Buildable 38756
Build 35645: arc lint + arc unit

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usr.sbin/
pmcstat/
2 lines

Diff 87877

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usr.sbin/pmcstat/pmcstat.c

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