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sched/walt: add rt_time to dump_throttled_rt_tasks

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Add rq->rt.rt_time to debug output to better track the accumulated
time that exceeded runtime. This will allow us to have a better
understanding of the decision made to throttle RT threads.

Change-Id: Icd8bc43583bddd61019f0d7f73a2315a8103d94a
Signed-off-by: Stephen Dickey <dickey@codeaurora.org>
This commit is contained in:
Stephen Dickey 2021-04-14 16:32:18 -07:00 committed by Rishabh Bhatnagar
parent 8237cc8693
commit f7fe6d6749
1 changed files with 4 additions and 2 deletions
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6
kernel/sched/walt/walt_debug.c
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@ -4,6 +4,7 @@
*/
#include <linux/module.h>
#include <linux/sched.h>
#include <trace/hooks/sched.h>
@ -14,8 +15,9 @@ static void dump_throttled_rt_tasks(void *unused, int cpu, u64 clock,
ktime_t rt_period, u64 rt_runtime, s64 rt_period_timer_expires)
{
printk_deferred("sched: RT throttling activated for cpu %d\n", cpu);
printk_deferred("rt_period_timer: expires=%lld now=%llu runtime=%llu period=%llu\n",
rt_period_timer_expires, ktime_get_ns(), rt_runtime, rt_period);
printk_deferred("rt_period_timer: expires=%lld now=%llu rt_time=%llu runtime=%llu period=%llu\n",
rt_period_timer_expires, ktime_get_ns(),
task_rq(current)->rt.rt_time, rt_runtime, rt_period);
printk_deferred("potential CPU hogs:\n");
#ifdef CONFIG_SCHED_INFO
if (sched_info_on())