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2024-09-11 - 14:53
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rackcslot3.osadl.org (updated Wed Sep 11, 2024 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81870rcu_preempt11622-21kworker/1:019:04:291
81740rcu_preempt7193-21awk23:19:271
81730rcu_preempt31198-21kworker/0:219:04:180
81730rcu_preempt22798-21ssh21:40:331
81720rcu_preempt20244-21sh23:47:011
81700rcu_preempt3577-21ssh00:19:191
81700rcu_preempt23659-1kworker/1:0H22:47:531
81700rcu_preempt0-21swapper/121:19:161
81700rcu_preempt0-21swapper/121:19:161
81690rcu_preempt6322-21/usr/sbin/munin23:19:270
81690rcu_preempt20494-21ssh22:40:521
81690rcu_preempt17400-21ssh21:29:511
81690rcu_preempt0-21swapper/121:24:211
81680rcu_preempt0-21swapper/123:14:401
81680rcu_preempt0-21swapper/122:54:251
81670rcu_preempt30265-21sh23:00:560
81670rcu_preempt26382-21irqstats23:59:231
81670rcu_preempt26382-21irqstats23:59:231
81670rcu_preempt19261-21irqstats21:34:201
81670rcu_preempt0-21swapper/000:35:490
81660rcu_preempt5834-21diskmemload00:35:431
81660rcu_preempt24403-21ssh23:54:270
81660rcu_preempt24403-21ssh23:54:270
89850650irq/17-ehci_hcd945-21usb-storage00:17:071
81650rcu_preempt23852-21ssh21:44:130
81650rcu_preempt21789-21latency_hist20:04:041
81650rcu_preempt0-21swapper/121:54:271
81640rcu_preempt14320-21head23:34:231
81630rcu_preempt5834-21diskmemload22:27:221
81630rcu_preempt24451-21cpu20:14:161
81630rcu_preempt24166-21ntpq23:54:241
81630rcu_preempt24166-21ntpq23:54:241
81630rcu_preempt24140-21ssh21:44:201
81630rcu_preempt21739-21ssh23:49:261
81630rcu_preempt0-21swapper/022:19:240
81630rcu_preempt0-21swapper/000:27:270
81620rcu_preempt22496-21missed_timers20:04:240
81620rcu_preempt18830-21/usr/sbin/munin22:39:030
81620rcu_preempt0-21swapper/023:04:400
81620rcu_preempt0-21swapper/020:29:190
81610rcu_preempt24540-21ntpq22:49:221
81610rcu_preempt18030-21ssh22:36:011
81610rcu_preempt17595-21ssh23:40:480
81610rcu_preempt0-21swapper/123:11:471
81610rcu_preempt0-21swapper/123:01:361
81610rcu_preempt0-21swapper/122:20:431
81610rcu_preempt0-21swapper/122:02:101
81610rcu_preempt0-21swapper/023:44:280
81610rcu_preempt0-21swapper/021:19:190
81610rcu_preempt0-21swapper/021:19:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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