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2026-06-01 - 02:45
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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 Mon Jun 01, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1734424743,0sleep10-21swapper/119:22:411
1719723626,0sleep30-21swapper/319:20:543
1726923228,0sleep00-21swapper/019:21:470
1718523127,0sleep20-21swapper/219:20:492
339960,0migration/37467-21sh21:47:203
339960,0migration/36089-21sh23:57:113
339960,0migration/320943-21sh00:46:223
339960,0migration/319156-21ntp_offset22:29:263
339960,0migration/316702-21sh23:07:323
339960,0migration/315131-21sh00:03:113
339960,0migration/31353-21sh21:04:243
329960,0watchdog/313543-21kthreadcore20:04:253
29815060,0irq/29-eth0-tx-3788-21munin-node20:44:310
29815060,0irq/29-eth0-tx-3559-21munin-node19:59:200
29815060,0irq/29-eth0-tx-32175-21munin-node19:34:240
29805060,0irq/28-eth0-rx-19527-21sh23:29:033
29805060,0irq/28-eth0-rx-17993-21cat20:29:243
149960,0migration/06536-21latency_hist22:44:060
149960,0migration/04170-21sh21:26:280
149960,0migration/018059-21aten_r1power_en20:09:160
8305050,0irq/26-0000:00:28563-21cat00:34:062
8305050,0irq/26-0000:00:232362sleep221:39:112
339950,0migration/38520-21munin-node21:09:213
339950,0migration/34599-21kthreadcore22:04:233
339950,0migration/33579-21aten_r1power_cu19:59:183
339950,0migration/332652-21fschecks_count19:34:203
339950,0migration/332066-21taskset20:18:073
339950,0migration/330349-21latency00:09:263
339950,0migration/329847-21diskmemload00:52:103
339950,0migration/328751-21taskset21:23:153
339950,0migration/325616-21cpuspeed_turbos20:59:193
339950,0migration/323884-21fschecks_count21:39:193
339950,0migration/323084-21munin-node23:49:223
339950,0migration/320159-21sh23:44:333
339950,0migration/318737-21munin-node23:09:223
339950,0migration/31844-21taskset23:18:133
339950,0migration/31572-21kthreadcore22:39:243
339950,0migration/314716-21munin-node21:14:173
339950,0migration/314336-21aten_r1power_en19:44:173
339950,0migration/312150-21taskset22:27:233
339950,0migration/311196-21aten_r1power_vo20:49:173
329950,0watchdog/33524-21snmpd19:50:573
329950,0watchdog/325720-21python22:14:333
329950,0watchdog/325406-21munin-node19:29:213
329950,0watchdog/316491-21perl00:04:223
329950,0watchdog/31344-21cut20:39:253
329950,0watchdog/310207-21kthreadcore19:39:253
329950,0watchdog/30-21swapper/300:36:023
29815050,0irq/29-eth0-tx-6839-21sshd21:04:400
29815050,0irq/29-eth0-tx-4468-21ssh21:27:122
29815050,0irq/29-eth0-tx-31359-21cut22:39:222
29815050,0irq/29-eth0-tx-28839-21diskmemload22:38:022
29815050,0irq/29-eth0-tx-15774-21munin-node00:04:232
29815050,0irq/29-eth0-tx-14648-21ssh22:48:002
29815050,0irq/29-eth0-tx-14271-21munin-node19:44:210
29815050,0irq/29-eth0-tx-1210-21kthreadcore21:44:232
29815050,0irq/29-eth0-tx-12003-21ssh00:40:232
29815050,0irq/29-eth0-tx-10800-21munin-node20:04:240
29815050,0irq/29-eth0-tx-0-21swapper/223:30:002
29815050,0irq/29-eth0-tx-0-21swapper/223:23:232
29815050,0irq/29-eth0-tx-0-21swapper/222:58:482
29815050,0irq/29-eth0-tx-0-21swapper/019:54:170
29805050,0irq/28-eth0-rx-28959-21forks23:34:203
29805050,0irq/28-eth0-rx-28959-21forks23:34:203
29805050,0irq/28-eth0-rx-26486-21cat22:54:233
29805050,0irq/28-eth0-rx-20042-21kthreadcore21:34:253
29805050,0irq/28-eth0-rx-17381-21ssh22:09:343
29805050,0irq/28-eth0-rx-12065-21ssh00:40:343
29805050,0irq/28-eth0-rx-0-21swapper/322:50:533
29805050,0irq/28-eth0-rx-0-21swapper/322:45:083
29805050,0irq/28-eth0-rx-0-21swapper/322:34:213
29805050,0irq/28-eth0-rx-0-21swapper/321:54:233
29805050,0irq/28-eth0-rx-0-21swapper/321:53:053
29805050,0irq/28-eth0-rx-0-21swapper/321:29:583
29805050,0irq/28-eth0-rx-0-21swapper/321:26:013
29805050,0irq/28-eth0-rx-0-21swapper/320:34:263
29805050,0irq/28-eth0-rx-0-21swapper/300:27:073
259950,0migration/223038-21gltestperf23:49:212
259950,0migration/221507-21latency_hist22:34:062
259950,0migration/21370-21irqcore21:04:242
249950,0watchdog/22730-21sensors_fan20:39:292
19150,0ktimersoftd/10-21swapper/121:50:141
175599955,0cyclictest0-21swapper/223:39:212
175599955,0cyclictest0-21swapper/222:04:262
175599950,0cyclictest0-21swapper/219:24:062
175599950,0cyclictest0-21swapper/200:14:022
175539955,0cyclictest0-21swapper/123:39:291
175539955,0cyclictest0-21swapper/121:32:531
175539955,0cyclictest0-21swapper/100:36:051
175539955,0cyclictest0-21swapper/100:28:501
175539950,0cyclictest0-21swapper/123:47:131
175429955,0cyclictest0-21swapper/023:51:160
175429955,0cyclictest0-21swapper/023:36:370
175429955,0cyclictest0-21swapper/023:36:370
175429954,0cyclictest18989-21sed23:09:230
175429950,0cyclictest0-21swapper/022:42:420
179950,0migration/14812-21kthreadcore22:04:231
179950,0migration/132459-21latency_hist21:04:061
179950,0migration/131843-21irqrtprio22:39:231
179950,0migration/127134-21taskset00:30:441
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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