Author: kib
Date: Wed Feb 4 14:49:47 2015
New Revision: 278209
URL: https://svnweb.freebsd.org/changeset/base/278209
Log:
Add ddb command 'show clocksource' to display state of the per-cpu
clock events.
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Modified:
head/sys/kern/kern_clocksource.c
Modified: head/sys/kern/kern_clocksource.c
==============================================================================
--- head/sys/kern/kern_clocksource.c Wed Feb 4 13:56:38 2015
(r278208)
+++ head/sys/kern/kern_clocksource.c Wed Feb 4 14:49:47 2015
(r278209)
@@ -908,3 +908,42 @@ sysctl_kern_eventtimer_periodic(SYSCTL_H
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
_______________________________________________
svn-src-head@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/svn-src-head
To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
