d/freebsd-nq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Change the way how software PMC updates counters.

Browse Source 
This at least fixes -n option of pmcstat.

Reviewed by:	fabient
This commit is contained in:
Alexander Motin 2013-02-26 13:59:39 +00:00
parent 38fda92679
commit 8a4f65bc33
1 changed files with 6 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
sys/dev/hwpmc/hwpmc_soft.c
View File

@ -408,8 +408,11 @@ pmc_soft_intr(struct pmckern_soft *ks)
}
processed = 1;
pc->soft_values[ri]++;
if (PMC_IS_SAMPLING_MODE(PMC_TO_MODE(pm))) {
if ((pc->soft_values[ri]--) <= 0)
pc->soft_values[ri] += pm->pm_sc.pm_reloadcount;
else
continue;
user_mode = TRAPF_USERMODE(ks->pm_tf);
error = pmc_process_interrupt(ks->pm_cpu, PMC_SR, pm,
ks->pm_tf, user_mode);
@ -424,7 +427,8 @@ pmc_soft_intr(struct pmckern_soft *ks)
*/
curthread->td_flags |= TDF_ASTPENDING;
}
}
} else
pc->soft_values[ri]++;
}
atomic_add_int(processed ? &pmc_stats.pm_intr_processed :