Messages in this thread Patch in this message | | | From | Chunxin Zang <> | Subject | [PATCH] sched/debug: Correctly print the title fields of runnable tasks | Date | Wed, 13 Mar 2024 09:43:18 +0800 |
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The title fields displayed for runnable tasks are now incorrect. like this:
runnable tasks: S task PID tree-key switches prio wait-time sum-exec sum-sleep ------------------------------------------------------------------------------------------------------------- Ikworker/R-rcu_g 4 -1.048576 E -1.039924 0.750000 0.000000 2 100 0.000000 0.000000 0.000000 0.000000 0 0 / Ikworker/R-slub_ 5 -1.048576 E -1.039924 0.750000 0.000000 2 100 0.000000 0.000000 0.000000 0.000000 0 0 / Ikworker/R-netns 6 -1.048576 E -1.039924 0.750000 0.000000 2 100 0.000000 0.000000 0.000000 0.000000 0 0 / I kworker/0:0H 8 194.270371 E 194.304864 3.000000 0.016500 4 100 0.000000 0.016500 0.000000 0.000000 0 0 / I kworker/0:1 9 40954.080088 E 40957.028485 3.000000 132.979107 1516 120 0.000000 132.979107 0.000000 0.000000 0 0 / Ikworker/R-mm_pe 11 -1.048576 E -1.039924 0.750000 0.000000 2 100 0.000000 0.000000 0.000000 0.000000 0 0 / Ircu_tasks_kthre 12 -1.048576 E 0.298576 0.750000 0.000000 2 120 0.000000 0.000000 0.000000 0.000000 0 0 /
The display information after fixing is as follows:
runnable tasks: S task PID tree-key E deadline slice switches prio wait-time sum-exec sum-sleep sum-block ----------------------------------------------------------------------------------------------------------------------------------------------------------------- S pool_workqueue_ 3 115.900753 E 118.861289 3.000000 3 120 0.000000 0.039464 0.000000 0.000000 0 0 / I kworker/R-rcu_g 4 -1.048576 E -1.039924 0.750000 2 100 0.000000 0.000000 0.000000 0.000000 0 0 / I kworker/R-slub_ 5 -1.048576 E -1.039924 0.750000 2 100 0.000000 0.000000 0.000000 0.000000 0 0 / I kworker/R-netns 6 -1.048576 E -1.039924 0.750000 2 100 0.000000 0.000000 0.000000 0.000000 0 0 / I kworker/0:0 7 391.218398 E 394.210989 3.000000 5 120 0.000000 0.016042 0.000000 0.000000 0 0 /
Signed-off-by: Chunxin Zang <spring.cxz@gmail.com> --- kernel/sched/debug.c | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-)
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c index 8d5d98a5834d..5359e724d270 100644 --- a/kernel/sched/debug.c +++ b/kernel/sched/debug.c @@ -575,17 +575,16 @@ static void print_task(struct seq_file *m, struct rq *rq, struct task_struct *p) { if (task_current(rq, p)) - SEQ_printf(m, ">R"); + SEQ_printf(m, ">R "); else - SEQ_printf(m, " %c", task_state_to_char(p)); + SEQ_printf(m, " %c ", task_state_to_char(p)); - SEQ_printf(m, "%15s %5d %9Ld.%06ld %c %9Ld.%06ld %9Ld.%06ld %9Ld.%06ld %9Ld %5d ", + SEQ_printf(m, "%15s %5d %9lld.%06ld %c %9lld.%06ld %9lld.%06ld %9lld %5d ", p->comm, task_pid_nr(p), SPLIT_NS(p->se.vruntime), entity_eligible(cfs_rq_of(&p->se), &p->se) ? 'E' : 'N', SPLIT_NS(p->se.deadline), SPLIT_NS(p->se.slice), - SPLIT_NS(p->se.sum_exec_runtime), (long long)(p->nvcsw + p->nivcsw), p->prio); @@ -611,10 +610,12 @@ static void print_rq(struct seq_file *m, struct rq *rq, int rq_cpu) SEQ_printf(m, "\n"); SEQ_printf(m, "runnable tasks:\n"); - SEQ_printf(m, " S task PID tree-key switches prio" - " wait-time sum-exec sum-sleep\n"); - SEQ_printf(m, "-------------------------------------------------------" - "------------------------------------------------------\n"); + SEQ_printf(m, " S %15s %5s %16s %c %16s %16s %9s %5s %16s %16s %16s %16s\n", + "task", "PID", "tree-key", 'E', "deadline", "slice", + "switches", "prio", "wait-time", "sum-exec", "sum-sleep", "sum-block"); + SEQ_printf(m, "---------------------------------------------------------------" + "------------------------------------------------------------------" + "--------------------------------\n"); rcu_read_lock(); for_each_process_thread(g, p) { -- 2.34.1
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