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2026-04-08 - 07:14
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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
Characteristics of the 100 highest latencies:
System rack2slot0.osadl.org (updated Wed Apr 08, 2026 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2154021020,1sleep02184299cyclictest21:52:130
233632740,0sleep10-21swapper/100:01:281
187732730,0sleep20-21swapper/200:27:332
187732730,0sleep20-21swapper/200:27:322
23952720,0sleep30-21swapper/321:22:223
63212590,0sleep20-21swapper/221:58:162
317582590,0sleep10-21swapper/121:13:021
197322580,0sleep20-21swapper/223:20:192
250712570,1sleep025048-21munin-run21:40:010
250712570,1sleep025048-21munin-run21:40:000
48832560,1sleep34876-21lspci21:45:483
3622560,0sleep2311rcuc/222:33:532
308942560,0sleep30-21swapper/300:16:523
308942560,0sleep30-21swapper/300:16:513
75862520,0sleep21-21systemd22:58:172
75862520,0sleep21-21systemd22:58:162
75152520,0sleep30-21swapper/322:34:463
57382520,1sleep25732-21lspci00:30:242
165942520,1sleep216593-21lspci22:28:372
308962510,0sleep00-21swapper/021:57:030
24332510,0sleep00-21swapper/022:01:320
24332510,0sleep00-21swapper/022:01:310
240442510,0sleep30-21swapper/322:12:003
21842995151,0cyclictest335-21scsi_eh_200:16:250
21842995151,0cyclictest335-21scsi_eh_200:16:240
54972500,0sleep30-21swapper/323:30:343
54972500,0sleep30-21swapper/323:30:333
313512500,0sleep30-21swapper/300:29:303
313512500,0sleep30-21swapper/300:29:293
277292490,0sleep30-21swapper/300:20:083
194462490,0sleep10-21swapper/122:18:421
7692480,0sleep20-21swapper/200:37:462
47492480,0sleep04736-21sshd23:14:130
47492480,0sleep04736-21sshd23:14:120
307922480,0sleep10-21swapper/122:48:591
307922480,0sleep10-21swapper/122:48:581
21858994848,0cyclictest335-21scsi_eh_200:05:383
117812480,0sleep00-21swapper/021:14:410
58022470,0sleep20-21swapper/200:12:552
58022470,0sleep20-21swapper/200:12:542
264422470,0sleep30-21swapper/322:40:273
140122460,0sleep20-21swapper/221:10:432
21842994545,0cyclictest335-21scsi_eh_200:06:400
241942440,0sleep30-21swapper/323:53:013
241942440,0sleep30-21swapper/323:53:003
21849994444,0cyclictest335-21scsi_eh_200:15:081
21849994444,0cyclictest335-21scsi_eh_200:15:071
35592410,0sleep30-21swapper/323:55:093
35592410,0sleep30-21swapper/323:55:083
2166123210,7sleep00-21swapper/019:08:570
217472287,7sleep30-21swapper/319:09:573
215152286,7sleep20-21swapper/219:07:072
2147022211,6sleep10-21swapper/119:06:341
69202210,0sleep10-21swapper/121:46:061
229322210,0sleep00-21swapper/022:32:510
21849992120,0cyclictest75850irq/25-eno1-tx-00:16:241
21849992120,0cyclictest75850irq/25-eno1-tx-00:16:231
168332190,0sleep116837-21ntp_kernel_err21:15:141
128862180,1sleep112882-21bash23:02:451
128862180,1sleep112882-21bash23:02:441
307552170,1sleep00-21swapper/023:01:030
307552170,1sleep00-21swapper/023:01:020
21849991717,0cyclictest27089-21kworker/1:000:25:141
21849991717,0cyclictest27089-21kworker/1:000:25:131
48182160,0sleep00-21swapper/022:17:100
155422160,0sleep00-21swapper/022:39:120
99582150,0sleep00-21swapper/021:18:500
121342150,0sleep10-21swapper/123:11:061
121342150,0sleep10-21swapper/123:11:051
281522140,0sleep20-21swapper/223:41:312
281522140,0sleep20-21swapper/223:41:302
148802140,0sleep00-21swapper/023:23:450
76112130,0sleep30-21swapper/321:10:043
319552130,0sleep10-21swapper/122:26:521
2185899130,11cyclictest19160-21grep00:10:503
2185899130,11cyclictest19160-21grep00:10:493
2184299130,12cyclictest15481-21sshd22:28:300
21858991210,1cyclictest0-21swapper/322:36:403
2185899120,11cyclictest674-21dbus-daemon22:57:103
2185899120,11cyclictest674-21dbus-daemon22:57:093
21854991210,1cyclictest16788-21sshd23:40:002
2185499120,1cyclictest9656-21bash21:41:502
2185499120,1cyclictest27932-21id23:09:002
2185499120,1cyclictest27932-21id23:08:592
2185499120,1cyclictest1-21systemd21:48:092
2185499120,11cyclictest674-21dbus-daemon22:41:092
2185499120,11cyclictest0-21swapper/223:29:102
21849991211,0cyclictest0-21swapper/123:15:361
2184999120,1cyclictest32227-21sshd23:58:251
2184999120,1cyclictest32227-21sshd23:58:251
2184999120,1cyclictest1071-21nfsd21:39:361
2184999120,1cyclictest1071-21nfsd21:39:351
2184999120,11cyclictest27352-21sshd23:29:151
2184999120,11cyclictest16071-21sshd21:51:061
21842991210,1cyclictest10848-21sshd21:46:390
21842991210,1cyclictest0-21swapper/000:24:190
2184299120,11cyclictest31178-21lspci22:44:400
2184299120,11cyclictest27801-21sshd22:48:400
2184299120,11cyclictest27801-21sshd22:48:390
2184299120,11cyclictest25581-21sshd23:53:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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