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Add ddb command 'show clocksource' to display state of the per-cpu

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clock events.

Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
This commit is contained in:
Konstantin Belousov 2015-02-04 14:49:47 +00:00
parent 04c920b9f0
commit 6e3bf5392d
1 changed files with 39 additions and 0 deletions
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39
sys/kern/kern_clocksource.c
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@ -908,3 +908,42 @@ sysctl_kern_eventtimer_periodic(SYSCTL_HANDLER_ARGS)
SYSCTL_PROC(_kern_eventtimer, OID_AUTO, periodic,
CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE,
0, 0, sysctl_kern_eventtimer_periodic, "I", "Enable event timer periodic mode");
#include "opt_ddb.h"
#ifdef DDB
#include <ddb/ddb.h>
DB_SHOW_COMMAND(clocksource, db_show_clocksource)
{
struct pcpu_state *st;
int c;
CPU_FOREACH(c) {
st = DPCPU_ID_PTR(c, timerstate);
db_printf(
"CPU %2d: action %d handle %d ipi %d idle %d\n"
" now %#jx nevent %#jx (%jd)\n"
" ntick %#jx (%jd) nhard %#jx (%jd)\n"
" nstat %#jx (%jd) nprof %#jx (%jd)\n"
" ncall %#jx (%jd) ncallopt %#jx (%jd)\n",
c, st->action, st->handle, st->ipi, st->idle,
(uintmax_t)st->now,
(uintmax_t)st->nextevent,
(uintmax_t)(st->nextevent - st->now) / tick_sbt,
(uintmax_t)st->nexttick,
(uintmax_t)(st->nexttick - st->now) / tick_sbt,
(uintmax_t)st->nexthard,
(uintmax_t)(st->nexthard - st->now) / tick_sbt,
(uintmax_t)st->nextstat,
(uintmax_t)(st->nextstat - st->now) / tick_sbt,
(uintmax_t)st->nextprof,
(uintmax_t)(st->nextprof - st->now) / tick_sbt,
(uintmax_t)st->nextcall,
(uintmax_t)(st->nextcall - st->now) / tick_sbt,
(uintmax_t)st->nextcallopt,
(uintmax_t)(st->nextcallopt - st->now) / tick_sbt);
}
}
#endif