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2026-07-19 - 06:14
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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 Sun Jul 19, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2927624737,0sleep10-21swapper/119:26:231
2905923725,0sleep30-21swapper/319:23:533
2918223525,0sleep20-21swapper/219:25:162
2919523026,0sleep00-21swapper/019:25:260
35160,0ktimersoftd/30-21swapper/323:13:523
339960,0migration/39182-21sh22:19:443
339960,0migration/3595-21sh22:16:133
339960,0migration/3363-21sh00:20:033
29815060,0irq/29-eth0-tx-19101-21munin-node20:28:240
29805060,0irq/28-eth0-rx-7749-21munin-node00:08:163
29805060,0irq/28-eth0-rx-32165-21diskstats23:28:143
29805060,0irq/28-eth0-rx-26301-21sensors22:28:233
29805060,0irq/28-eth0-rx-14841-21grep00:28:213
29805060,0irq/28-eth0-rx-0-21swapper/323:22:343
295069960,0cyclictest0-21swapper/221:34:562
295069960,0cyclictest0-21swapper/200:46:302
295009965,0cyclictest31485-21ssh00:54:571
295009960,0cyclictest0-21swapper/123:53:181
149960,0migration/09001-21sh00:23:430
149960,0migration/027065-21sh23:07:040
149960,0migration/012453-21munin-node21:08:140
8305050,0irq/26-0000:00:0-21swapper/320:58:013
339950,0migration/39673-21kthreadcore00:43:203
339950,0migration/33595-21munin-node20:58:223
339950,0migration/331472-21kthreadcore23:43:203
339950,0migration/331307-21kthreadcore00:38:203
339950,0migration/330705-21kthreadcore22:33:163
339950,0migration/325678-21kthreadcore20:08:193
339950,0migration/324403-21fschecks_count22:48:153
339950,0migration/321731-21kthreadcore19:43:213
339950,0migration/320772-21kthreadcore22:08:203
339950,0migration/31970-21idleruntime19:53:153
339950,0migration/31811-21kthreadcore00:03:203
339950,0migration/317779-21munin-node21:33:173
339950,0migration/316504-21munin-node20:48:143
339950,0migration/315088-21sh00:48:093
339950,0migration/314264-21kthreadcore22:23:193
339950,0migration/311801-21crond21:08:013
339950,0migration/310981-21munin-node22:58:173
339950,0migration/310253-21kthreadcore20:18:193
329950,0watchdog/39544-21sh21:28:163
329950,0watchdog/34148-21perl23:48:163
329950,0watchdog/313730-21kthreadcore20:43:203
329950,0watchdog/30-21swapper/321:43:203
29815050,0irq/29-eth0-tx-27808-21munin-node23:08:242
29815050,0irq/29-eth0-tx-2606-21mdstat22:33:172
29815050,0irq/29-eth0-tx-24128-21munin-node00:53:222
29815050,0irq/29-eth0-tx-21297-21munin-node21:53:152
29815050,0irq/29-eth0-tx-0-21swapper/223:48:242
29815050,0irq/29-eth0-tx-0-21swapper/222:06:242
29815050,0irq/29-eth0-tx-0-21swapper/021:28:080
29815050,0irq/29-eth0-tx-0-21swapper/020:52:530
29815050,0irq/29-eth0-tx-0-21swapper/020:47:350
29815050,0irq/29-eth0-tx-0-21swapper/020:34:340
29815050,0irq/29-eth0-tx-0-21swapper/019:53:160
29815050,0irq/29-eth0-tx-0-21swapper/019:38:420
29805050,0irq/28-eth0-rx-7214-21missed_timers21:23:213
29805050,0irq/28-eth0-rx-30636-21sed21:58:113
29805050,0irq/28-eth0-rx-28833-21idleruntime23:08:173
29805050,0irq/28-eth0-rx-18789-21cut23:03:133
29805050,0irq/28-eth0-rx-17408-21idleruntime00:13:173
29805050,0irq/28-eth0-rx-16218-21irqcore22:43:183
29805050,0irq/28-eth0-rx-0-21swapper/323:58:143
29805050,0irq/28-eth0-rx-0-21swapper/323:55:143
29805050,0irq/28-eth0-rx-0-21swapper/323:41:233
29805050,0irq/28-eth0-rx-0-21swapper/323:33:143
29805050,0irq/28-eth0-rx-0-21swapper/322:53:283
29805050,0irq/28-eth0-rx-0-21swapper/322:03:213
29805050,0irq/28-eth0-rx-0-21swapper/321:55:143
29805050,0irq/28-eth0-rx-0-21swapper/321:48:043
29805050,0irq/28-eth0-rx-0-21swapper/300:54:403
29805050,0irq/28-eth0-rx-0-21swapper/300:33:253
29805050,0irq/28-eth0-rx-0-21swapper/300:23:193
295069955,0cyclictest0-21swapper/222:56:552
295069955,0cyclictest0-21swapper/200:14:112
295069955,0cyclictest0-21swapper/200:08:022
295069955,0cyclictest0-21swapper/200:03:562
295069950,0cyclictest0-21swapper/223:45:292
295069950,0cyclictest0-21swapper/200:39:342
295009950,0cyclictest0-21swapper/122:25:011
294949955,0cyclictest7265-21irqrtprio22:38:200
259950,0migration/24512-21unixbench-2d21:58:252
259950,0migration/23123-21sh21:43:112
259950,0migration/229933-21cpuspeed_turbos19:28:132
259950,0migration/228261-21sh00:36:202
259950,0migration/226392-21sh00:18:162
259950,0migration/225323-21kthreadcore22:28:192
259950,0migration/21121-21kthreadcore20:13:192
249950,0watchdog/213166-21ssh23:17:402
249950,0watchdog/20-21swapper/222:38:242
179950,0migration/15149-21munin-node21:03:121
179950,0migration/130761-21kthreadcore21:38:191
179950,0migration/128356-21sh21:54:201
179950,0migration/123645-21kthreadcore23:58:191
169950,0watchdog/19126-21cut23:13:201
169950,0watchdog/17030-21munin-node22:03:161
169950,0watchdog/116246-21perl20:03:161
149950,0migration/09399-21sh22:57:550
149950,0migration/07769-21kthreadcore23:13:200
149950,0migration/06939-21kthreadcore22:18:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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