通過/proc檢視Linux核心態呼叫棧來定位卡死問題
阿新 • • 發佈：2018-12-31
[[email protected] ~]# cat /proc/27288/sched
find (27288, #threads: 1)
---------------------------------------------------------
se.exec_start : 617547410.689282
se.vruntime : 2471987.542895
se.sum_exec_runtime : 1119.480311
se.statistics.wait_start : 0.000000
se.statistics.sleep_start : 0.000000
se.statistics.block_start : 617547410.689282
se.statistics.sleep_max : 0.089192
se.statistics.block_max : 60082.951331
se.statistics.exec_max : 1.110465
se.statistics.slice_max : 0.334211
se.statistics.wait_max : 0.812834
se.statistics.wait_sum : 724.745506
se.statistics.wait_count : 27211
se.statistics.iowait_sum : 0.000000
se.statistics.iowait_count : 0
se.nr_migrations : 312
se.statistics.nr_migrations_cold : 0
se.statistics.nr_failed_migrations_affine: 0
se.statistics.nr_failed_migrations_running: 96
se.statistics.nr_failed_migrations_hot: 1794
se.statistics.nr_forced_migrations : 150
se.statistics.nr_wakeups : 18507
se.statistics.nr_wakeups_sync : 1
se.statistics.nr_wakeups_migrate : 155
se.statistics.nr_wakeups_local : 18504
se.statistics.nr_wakeups_remote : 3
se.statistics.nr_wakeups_affine : 155
se.statistics.nr_wakeups_affine_attempts: 158
se.statistics.nr_wakeups_passive : 0
se.statistics.nr_wakeups_idle : 0
avg_atom : 0.041379
avg_per_cpu : 3.588077
nr_switches : 27054
nr_voluntary_switches : 9950
nr_involuntary_switches : 17104
se.load.weight : 1024
policy : 0
prio : 120
clock-delta : 72