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- track maximum wait time

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- resize columns based on actual observed numerical values

MFC after:	3 days
This commit is contained in:
Kip Macy 2008-07-27 21:45:20 +00:00
parent d185578a78
commit 947265b6bd
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=180852
1 changed files with 9 additions and 4 deletions
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13
sys/kern/subr_lock.c
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@ -152,6 +152,7 @@ struct lock_prof {
const char *name;
int line;
int ticks;
uintmax_t cnt_wait_max;
uintmax_t cnt_max;
uintmax_t cnt_tot;
uintmax_t cnt_wait;
@ -267,8 +268,8 @@ lock_prof_output(struct lock_prof *lp, struct sbuf *sb)
for (p = lp->file; p != NULL && strncmp(p, "../", 3) == 0; p += 3);
sbuf_printf(sb,
"%6ju %12ju %12ju %11ju %5ju %5ju %12ju %12ju %s:%d (%s:%s)\n",
lp->cnt_max / 1000, lp->cnt_tot / 1000,
"%8ju %9ju %11ju %11ju %11ju %6ju %6ju %2ju %6ju %s:%d (%s:%s)\n",
lp->cnt_max / 1000, lp->cnt_wait_max / 1000, lp->cnt_tot / 1000,
lp->cnt_wait / 1000, lp->cnt_cur,
lp->cnt_cur == 0 ? (uintmax_t)0 :
lp->cnt_tot / (lp->cnt_cur * 1000),
@ -304,6 +305,8 @@ lock_prof_sum(struct lock_prof *match, struct lock_prof *dst, int hash,
l->ticks = t;
if (l->cnt_max > dst->cnt_max)
dst->cnt_max = l->cnt_max;
if (l->cnt_wait_max > dst->cnt_wait_max)
dst->cnt_wait_max = l->cnt_wait_max;
dst->cnt_tot += l->cnt_tot;
dst->cnt_wait += l->cnt_wait;
dst->cnt_cur += l->cnt_cur;
@ -344,8 +347,8 @@ dump_lock_prof_stats(SYSCTL_HANDLER_ARGS)
retry_sbufops:
sb = sbuf_new(NULL, NULL, LPROF_SBUF_SIZE * multiplier, SBUF_FIXEDLEN);
sbuf_printf(sb, "\n%6s %12s %12s %11s %5s %5s %12s %12s %s\n",
"max", "total", "wait_total", "count", "avg", "wait_avg", "cnt_hold", "cnt_lock", "name");
sbuf_printf(sb, "\n%8s %9s %11s %11s %11s %6s %6s %2s %6s %s\n",
"max", "wait_max", "total", "wait_total", "count", "avg", "wait_avg", "cnt_hold", "cnt_lock", "name");
enabled = lock_prof_enable;
lock_prof_enable = 0;
pause("lpreset", hz / 10);
@ -542,6 +545,8 @@ lock_profile_release_lock(struct lock_object *lo)
*/
if (holdtime > lp->cnt_max)
lp->cnt_max = holdtime;
if (l->lpo_waittime > lp->cnt_wait_max)
lp->cnt_wait_max = l->lpo_waittime;
lp->cnt_tot += holdtime;
lp->cnt_wait += l->lpo_waittime;
lp->cnt_contest_locking += l->lpo_contest_locking;