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2026-04-18 - 20:17
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 100 highest latencies:
System rack1slot2.osadl.org (updated Sat Apr 18, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
875024939,0sleep30-21swapper/307:18:403
869524839,0sleep20-21swapper/207:18:032
858524127,0sleep00-21swapper/007:16:450
884423726,0sleep10-21swapper/107:19:461
8982991313,0cyclictest21583-21sensors12:05:540
89849960,0cyclictest20299-21diskmemload10:15:462
89849960,0cyclictest0-21swapper/209:33:222
89839960,0cyclictest0-21swapper/110:45:561
339960,0migration/38288-21kthreadcore09:30:503
339960,0migration/37732-21sh09:48:353
339960,0migration/326643-21ntp_offset09:20:533
339960,0migration/316001-21sh11:07:013
339960,0migration/310864-21runrttasks12:40:323
29815060,0irq/29-eth0-tx-23840-21munin-node08:15:480
29815060,0irq/29-eth0-tx-20324-21munin-node08:35:430
29815060,0irq/29-eth0-tx-16823-21munin-node08:55:490
29805060,0irq/28-eth0-rx-0-21swapper/311:30:443
149960,0migration/09116-21aten_r1power_vo11:05:450
149960,0migration/05633-21idleruntime10:25:470
149960,0migration/04433-21sh09:27:510
149960,0migration/03972-21sh10:24:360
149960,0migration/029810-21sh11:54:410
149960,0migration/026350-21kthreadcore07:30:490
149960,0migration/026160-21timerwakeupswit11:30:560
89849955,0cyclictest0-21swapper/212:43:492
89849955,0cyclictest0-21swapper/212:29:472
89849955,0cyclictest0-21swapper/212:22:222
89849955,0cyclictest0-21swapper/212:14:112
89849955,0cyclictest0-21swapper/211:14:062
89849955,0cyclictest0-21swapper/210:45:442
89849954,0cyclictest3524-21snmpd08:25:522
89849950,0cyclictest0-21swapper/211:37:362
89849950,0cyclictest0-21swapper/210:04:252
89849950,0cyclictest0-21swapper/209:52:172
89839955,0cyclictest0-21swapper/110:28:071
89839955,0cyclictest0-21swapper/110:01:571
89839954,0cyclictest23071-21ssh10:53:401
89839950,0cyclictest0-21swapper/111:19:501
89839950,0cyclictest0-21swapper/110:37:251
89839950,0cyclictest0-21swapper/109:23:101
89829955,0cyclictest0-21swapper/011:43:240
89829950,0cyclictest0-21swapper/012:25:580
8305050,0irq/26-0000:00:8843-21sed11:05:312
35150,0ktimersoftd/30-21swapper/310:09:193
339950,0migration/39886-21cpuspeed_turbos08:50:423
339950,0migration/39318-21aten_r1power_po07:20:423
339950,0migration/37922-21kthreadcore11:20:493
339950,0migration/33957-21kthreadcore08:00:493
339950,0migration/332281-21kthreadcore10:40:483
339950,0migration/331822-21kthreadcore07:55:503
339950,0migration/331566-21kthreadcore10:20:483
339950,0migration/329141-21kthreadcore12:10:503
339950,0migration/328769-21kthreadcore09:40:493
339950,0migration/323729-21latency_hist08:15:313
339950,0migration/322048-21kthreadcore08:55:503
339950,0migration/320713-21munin-node08:35:443
339950,0migration/320174-21fschecks_time12:45:463
339950,0migration/319104-21rt-features07:45:523
339950,0migration/318304-21kthreadcore12:05:493
339950,0migration/317557-21aten_r1power_cu11:10:423
339950,0migration/312498-21kthreadcore12:00:503
339950,0migration/312292-21sendmail_mailst09:10:543
339950,0migration/310251-21taskset12:39:263
329950,0watchdog/37793-21kthreadcore11:40:473
329950,0watchdog/327897-21netstat10:35:503
329950,0watchdog/326250-21kthreadcore08:15:503
329950,0watchdog/321202-21sshd10:34:263
329950,0watchdog/321100-21ps10:15:463
329950,0watchdog/318409-21munin-node12:25:473
329950,0watchdog/316478-21if_eth010:50:463
329950,0watchdog/314321-21iostat_ios08:30:463
329950,0watchdog/30-21swapper/310:00:503
329950,0watchdog/30-21swapper/307:35:463
29815050,0irq/29-eth0-tx-5716-21munin-node07:40:460
29815050,0irq/29-eth0-tx-20786-21ssh09:20:450
29815050,0irq/29-eth0-tx-20299-21diskmemload11:29:062
29815050,0irq/29-eth0-tx-13325-21munin-node09:15:490
29815050,0irq/29-eth0-tx-0-21swapper/007:35:440
29805050,0irq/28-eth0-rx-29701-21diskstats09:25:453
29805050,0irq/28-eth0-rx-23637-21kthreadcore07:50:503
29805050,0irq/28-eth0-rx-19450-21taskset11:45:533
29805050,0irq/28-eth0-rx-13878-21kthreadcore09:50:493
29805050,0irq/28-eth0-rx-12444-21irqcore11:25:493
29805050,0irq/28-eth0-rx-0-21swapper/312:30:543
29805050,0irq/28-eth0-rx-0-21swapper/312:15:483
29805050,0irq/28-eth0-rx-0-21swapper/311:57:233
29805050,0irq/28-eth0-rx-0-21swapper/311:50:493
29805050,0irq/28-eth0-rx-0-21swapper/311:38:053
29805050,0irq/28-eth0-rx-0-21swapper/311:17:093
29805050,0irq/28-eth0-rx-0-21swapper/311:02:043
29805050,0irq/28-eth0-rx-0-21swapper/310:57:523
29805050,0irq/28-eth0-rx-0-21swapper/310:45:523
29805050,0irq/28-eth0-rx-0-21swapper/310:25:493
29805050,0irq/28-eth0-rx-0-21swapper/310:00:093
249950,0watchdog/231136-21kthreadcore07:55:502
249950,0watchdog/230164-21fschecks_time09:25:462
249950,0watchdog/227785-21missed_timers11:50:512
179950,0migration/19844-21sh10:08:071
179950,0migration/13915-21irqrtprio11:20:481
179950,0migration/130660-21sh12:11:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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