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2026-08-01 - 09:32
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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 50 highest latencies:
System rack1slot2.osadl.org (updated Sat Aug 01, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1594323626,0sleep10-21swapper/119:28:061
1570823628,0sleep20-21swapper/219:25:232
1586923526,0sleep30-21swapper/319:27:163
1578023423,0sleep00-21swapper/019:26:130
339960,0migration/36962-21sh00:48:553
339960,0migration/34985-21sh21:51:293
339960,0migration/329171-21sh21:48:063
339960,0migration/322866-21sh23:36:533
339960,0migration/320696-21sh23:15:363
339960,0migration/313998-21sh23:30:493
29805060,0irq/28-eth0-rx-24852-21grep00:14:253
29805060,0irq/28-eth0-rx-11247-21munin-node23:09:263
160989960,0cyclictest3224-21ssh00:23:362
160969965,0cyclictest30825-21ssh00:44:010
8305050,0irq/26-0000:00:4313-21awk22:49:202
339950,0migration/39160-21taskset20:52:353
339950,0migration/38575-21munin-node22:14:193
339950,0migration/37697-21munin-node21:54:223
339950,0migration/37676-21taskset23:46:573
339950,0migration/35118-21taskset19:41:423
339950,0migration/33784-21aten_r1power_fr21:34:183
339950,0migration/332099-21irqrtprio23:24:223
339950,0migration/331555-21sh22:24:303
339950,0migration/330771-21kthreadcore19:59:223
339950,0migration/327036-21munin-node22:44:163
339950,0migration/324304-21kthreadcore22:39:243
339950,0migration/323842-21taskset23:39:083
339950,0migration/323561-21munin-node00:39:233
339950,0migration/320772-21fschecks_time19:54:193
339950,0migration/320716-21sh00:34:313
339950,0migration/319143-21kthreadcore23:54:243
339950,0migration/317164-21kthreadcore19:49:213
339950,0migration/317020-21fschecks_count20:14:183
339950,0migration/316655-21munin-node21:19:233
339950,0migration/311858-21munin-node22:54:163
329950,0watchdog/330696-21ps20:23:363
329950,0watchdog/327870-21kthreadcore21:04:243
329950,0watchdog/323547-21basename19:34:163
329950,0watchdog/322218-21cut21:24:243
329950,0watchdog/312523-40yum-updatesd-he00:30:093
329950,0watchdog/30-21swapper/322:59:243
329950,0watchdog/30-21swapper/322:09:203
29815050,0irq/29-eth0-tx-31088-21munin-node21:09:210
29815050,0irq/29-eth0-tx-28844-21munin-node23:04:272
29815050,0irq/29-eth0-tx-26689-21ssh22:59:292
29815050,0irq/29-eth0-tx-23912-21munin-node21:04:180
29815050,0irq/29-eth0-tx-22622-21munin-node00:39:282
29815050,0irq/29-eth0-tx-15396-21munin-node23:34:262
29815050,0irq/29-eth0-tx-0-21swapper/223:54:272
29815050,0irq/29-eth0-tx-0-21swapper/221:57:372
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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