FreeBSD Bugzilla – Attachment 194476 Details for
Bug 228669
CLOCK_PROCESS_CPUTIME_ID is unnecessarily inaccurate
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[patch]
Proposed fix
process_cputime.patch (text/plain), 458 bytes, created by
Colin Percival
on 2018-06-22 09:33:28 UTC
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Description:
Proposed fix
Filename:
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Creator:
Colin Percival
Created:
2018-06-22 09:33:28 UTC
Size:
458 bytes
patch
obsolete
>Index: sys/kern/kern_time.c >=================================================================== >--- sys/kern/kern_time.c (revision 335517) >+++ sys/kern/kern_time.c (working copy) >@@ -281,6 +281,10 @@ > rufetch(targetp, &ru); > runtime = targetp->p_rux.rux_runtime; > PROC_STATUNLOCK(targetp); >+ critical_enter(); >+ if (curthread->td_proc == targetp) >+ runtime += cpu_ticks() - PCPU_GET(switchtime); >+ critical_exit(); > cputick2timespec(runtime, ats); > } >
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