From: Juergen Gross <jgross@suse.com>
To: xen-devel@lists.xenproject.org
Cc: Juergen Gross <jgross@suse.com>,
George Dunlap <george.dunlap@eu.citrix.com>,
Dario Faggioli <dfaggioli@suse.com>
Subject: [Xen-devel] [PATCH] xen/sched: add some diagnostic info in the run queue keyhandler
Date: Fri, 7 Feb 2020 08:24:05 +0100 [thread overview]
Message-ID: <20200207072405.2236-1-jgross@suse.com> (raw)
When dumping the run queue information add some more data regarding
current and (if known) previous vcpu for each physical cpu.
Signed-off-by: Juergen Gross <jgross@suse.com>
---
xen/common/sched/core.c | 19 +++++++++++++------
1 file changed, 13 insertions(+), 6 deletions(-)
diff --git a/xen/common/sched/core.c b/xen/common/sched/core.c
index d4e8944e0e..103d94bd02 100644
--- a/xen/common/sched/core.c
+++ b/xen/common/sched/core.c
@@ -3235,7 +3235,7 @@ void scheduler_free(struct scheduler *sched)
void schedule_dump(struct cpupool *c)
{
- unsigned int i;
+ unsigned int i, j;
struct scheduler *sched;
cpumask_t *cpus;
@@ -3246,7 +3246,7 @@ void schedule_dump(struct cpupool *c)
if ( c != NULL )
{
sched = c->sched;
- cpus = c->cpu_valid;
+ cpus = c->res_valid;
printk("Scheduler: %s (%s)\n", sched->name, sched->opt_name);
sched_dump_settings(sched);
}
@@ -3256,11 +3256,18 @@ void schedule_dump(struct cpupool *c)
cpus = &cpupool_free_cpus;
}
- if ( sched->dump_cpu_state != NULL )
+ printk("CPUs info:\n");
+ for_each_cpu (i, cpus)
{
- printk("CPUs info:\n");
- for_each_cpu (i, cpus)
- sched_dump_cpu_state(sched, i);
+ struct sched_resource *sr = get_sched_res(i);
+
+ printk("CPU[%02d] current=%pv, curr=%pv, prev=%pv\n", i,
+ get_cpu_current(i), sr->curr ? sr->curr->vcpu_list : NULL,
+ sr->prev ? sr->prev->vcpu_list : NULL);
+ for_each_cpu (j, sr->cpus)
+ if ( i != j )
+ printk("CPU[%02d] current=%pv\n", j, get_cpu_current(j));
+ sched_dump_cpu_state(sched, i);
}
rcu_read_unlock(&sched_res_rculock);
--
2.16.4
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next reply other threads:[~2020-02-07 7:24 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-07 7:24 Juergen Gross [this message]
2020-02-07 11:09 ` [Xen-devel] [PATCH] xen/sched: add some diagnostic info in the run queue keyhandler Dario Faggioli
2020-02-07 12:59 ` Jürgen Groß
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