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2026-03-19 - 04:56
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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 Thu Mar 19, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
528524839,0sleep20-21swapper/219:17:552
522924435,0sleep10-21swapper/119:17:181
506723228,0sleep00-21swapper/019:15:250
500423120,0sleep30-21swapper/319:14:363
8305060,0irq/26-0000:00:22647-21ls00:28:002
53669965,0cyclictest26228-21ps23:33:172
53669960,0cyclictest0-21swapper/222:24:182
4160,0ktimersoftd/00-21swapper/023:16:450
4160,0ktimersoftd/00-21swapper/022:43:390
35160,0ktimersoftd/30-21swapper/322:28:593
339960,0migration/326485-21sh23:52:173
339960,0migration/323593-21sh22:16:243
339960,0migration/323462-21sh23:30:053
339960,0migration/318658-21missed_timers19:23:183
339960,0migration/317975-21sh23:47:353
339960,0migration/315692-21kthreadcore21:53:173
339960,0migration/313510-21sh23:07:343
339960,0migration/31255-21sh22:39:033
29815060,0irq/29-eth0-tx-27430-21munin-node20:18:130
27160,0ktimersoftd/20-21swapper/223:16:452
27160,0ktimersoftd/20-21swapper/222:43:392
27160,0ktimersoftd/20-21swapper/200:32:262
19160,0ktimersoftd/10-21swapper/100:32:261
149960,0migration/08306-21fschecks_time23:23:130
149960,0migration/08254-21sh23:39:300
149960,0migration/02971-21kthreadcore20:43:180
149960,0migration/020679-21ksmtuned21:54:320
149960,0migration/016005-21kthreadcore21:33:170
149960,0migration/014718-21sh22:10:420
8305050,0irq/26-0000:00:27401-21crond21:03:002
53669955,0cyclictest0-21swapper/223:20:452
53669950,0cyclictest0-21swapper/223:01:122
53669950,0cyclictest0-21swapper/221:29:082
53659950,0cyclictest0-21swapper/121:28:411
53659950,0cyclictest0-21swapper/100:04:271
4150,0ktimersoftd/00-21swapper/022:56:490
339950,0migration/38512-21kthreadcore23:58:173
339950,0migration/37539-21kthreadcore00:18:163
339950,0migration/34529-21kthreadcore22:23:163
339950,0migration/332568-21idleruntime00:33:143
339950,0migration/330894-21taskset00:32:003
339950,0migration/3303-21runrttasks23:36:543
339950,0migration/330130-21unixbench-2d19:53:243
339950,0migration/326171-21fschecks_count21:23:123
339950,0migration/32543-21fschecks_count19:38:123
339950,0migration/323878-21runrttasks21:19:103
339950,0migration/320196-21kthreadcore20:33:173
339950,0migration/320142-21kthreadcore19:48:163
339950,0migration/318908-21fschecks_time22:33:143
339950,0migration/317472-21gltestperf00:43:153
339950,0migration/316430-21kthreadcore00:03:183
339950,0migration/315648-21kthreadcore23:08:173
339950,0migration/313339-21kthreadcore21:13:173
339950,0migration/312501-21taskset20:04:493
339950,0migration/312280-21sh21:50:103
339950,0migration/31197-21munin-node20:18:213
339950,0migration/31141-21sh23:38:123
329950,0watchdog/332432-1kworker/3:2H23:22:393
329950,0watchdog/324644-21tune2fs20:38:103
329950,0watchdog/324644-21tune2fs20:38:103
329950,0watchdog/30-21swapper/320:48:143
29815050,0irq/29-eth0-tx-7168-21munin-node22:08:172
29815050,0irq/29-eth0-tx-4884-21munin-node21:48:122
29815050,0irq/29-eth0-tx-27055-21sh23:53:102
29815050,0irq/29-eth0-tx-25638-21munin-node21:23:202
29815050,0irq/29-eth0-tx-22195-21munin-node21:58:102
29815050,0irq/29-eth0-tx-16505-21ssh00:43:112
29815050,0irq/29-eth0-tx-16169-21munin-node23:28:182
29815050,0irq/29-eth0-tx-0-21swapper/223:41:302
29815050,0irq/29-eth0-tx-0-21swapper/222:04:392
29815050,0irq/29-eth0-tx-0-21swapper/200:18:242
29815050,0irq/29-eth0-tx-0-21swapper/021:18:160
29815050,0irq/29-eth0-tx-0-21swapper/020:28:180
29815050,0irq/29-eth0-tx-0-21swapper/020:13:190
29815050,0irq/29-eth0-tx-0-21swapper/019:36:260
29805050,0irq/28-eth0-rx-30960-21aten_r1power_po22:03:113
29805050,0irq/28-eth0-rx-24205-21kthreadcore00:08:193
29805050,0irq/28-eth0-rx-13492-21cat21:33:163
29805050,0irq/28-eth0-rx-11770-21aten_r1power_fr22:48:103
29805050,0irq/28-eth0-rx-0-21swapper/323:56:343
29805050,0irq/28-eth0-rx-0-21swapper/323:13:153
29805050,0irq/28-eth0-rx-0-21swapper/323:00:123
29805050,0irq/28-eth0-rx-0-21swapper/322:11:303
29805050,0irq/28-eth0-rx-0-21swapper/320:28:143
29805050,0irq/28-eth0-rx-0-21swapper/319:43:163
29805050,0irq/28-eth0-rx-0-21swapper/319:28:213
29805050,0irq/28-eth0-rx-0-21swapper/300:25:493
27150,0ktimersoftd/20-21swapper/222:32:022
259950,0migration/26635-21kthreadcore21:08:172
259950,0migration/232672-21kthreadcore20:18:172
259950,0migration/231474-21sh22:19:152
259950,0migration/229440-21kthreadcore21:03:172
259950,0migration/225017-21kthreadcore22:53:182
259950,0migration/221875-21sh21:57:542
259950,0migration/221194-21fschecks_count00:08:142
259950,0migration/219930-21missed_timers23:08:192
259950,0migration/217019-21if_eth1.222:13:162
259950,0migration/216771-21munin-node20:33:102
259950,0migration/215973-21kthreadcore00:03:182
259950,0migration/215867-21timerandwakeup20:28:232
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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