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2026-05-19 - 12:19
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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 rack5slot0.osadl.org (updated Tue May 19, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2497121320,2sleep30-21swapper/323:40:133
2502921000,2sleep30-21swapper/300:40:003
3192329827,42sleep30-21swapper/319:05:063
148429535,48sleep10-21swapper/119:09:381
318792930,2sleep30-21swapper/300:25:103
102522880,7sleep10-21swapper/121:43:131
141322870,4sleep2179299cyclictest22:52:182
188202860,0sleep00-21swapper/023:43:020
79312840,2sleep30-21swapper/321:32:333
29012840,1sleep10-21swapper/123:33:591
122632830,2sleep212259-21sshd00:19:042
46862810,3sleep20-21swapper/200:03:282
13182790,2sleep21309-21sshd22:39:212
47622780,2sleep22024-21nfsd00:14:392
17172780,9sleep0178499cyclictest21:21:410
138012780,2sleep10-21swapper/100:35:131
36112770,2sleep03607-21bash23:20:100
111442770,2sleep211142-21sshd21:15:212
21102760,1sleep20-21swapper/223:52:182
93212750,2sleep20-21swapper/222:25:382
269102740,3sleep2179299cyclictest23:22:372
25422740,1sleep20-21swapper/222:17:412
171982740,1sleep00-21swapper/023:57:300
321502730,2sleep232148-21sshd21:28:202
161252730,5sleep20-21swapper/200:31:182
97092720,2sleep30-21swapper/322:10:453
129427232,10sleep20-21swapper/219:07:152
12802710,1sleep30-21swapper/323:33:483
206852700,3sleep2179299cyclictest22:08:362
315832680,3sleep2179299cyclictest23:16:082
258702650,1sleep00-21swapper/021:13:360
4452630,2sleep2179299cyclictest23:09:182
113025934,13sleep00-21swapper/019:05:270
106692360,2sleep30-21swapper/321:53:533
255082330,2sleep325507-21sshd00:13:073
111572320,30sleep1144650irq/27-eth021:22:421
239022290,1sleep00-21swapper/023:11:530
193072280,26sleep1144650irq/27-eth023:46:331
156872280,2sleep215688-21sshd22:22:582
272932270,6sleep30-21swapper/300:02:103
230942270,2sleep12023-21nfsd22:20:171
97992260,1sleep00-21swapper/000:26:230
212262250,3sleep20-21swapper/200:35:592
50752240,1sleep05071-21bash22:21:480
36802240,4sleep20-21swapper/223:02:132
238142241,21sleep1144650irq/27-eth023:43:371
178999240,22cyclictest26622-21sshd21:10:141
178499241,11cyclictest0-21swapper/021:53:470
178499240,22cyclictest15370-21sshd23:35:150
178499240,17cyclictest0-21swapper/000:21:120
178499240,13cyclictest0-21swapper/023:54:200
70232230,2sleep30-21swapper/320:30:193
310762230,21sleep3144650irq/27-eth023:26:323
286202230,21sleep1144650irq/27-eth022:16:531
178499233,9cyclictest9619-21rm22:44:010
178499230,2cyclictest28261-21sshd00:36:460
178499230,20cyclictest7062-21bash22:00:170
314232220,2sleep10-21swapper/121:28:151
215462220,1sleep20-21swapper/200:20:032
210482220,3sleep1178999cyclictest00:31:561
206162222,18sleep3144650irq/27-eth021:37:203
1784992212,9cyclictest24447-21sshd00:01:480
178499221,1cyclictest0-21swapper/021:25:050
178499220,2cyclictest5222-21sshd21:42:360
178499220,2cyclictest32128-21sshd22:57:570
178499220,20cyclictest0-21swapper/023:25:110
178499220,20cyclictest0-21swapper/021:55:170
178499220,1cyclictest0-21swapper/022:37:030
178499220,13cyclictest20384-21sshd21:33:550
178499220,12cyclictest0-21swapper/023:15:010
178499220,11cyclictest28299-21bash22:31:480
120772221,19sleep3144650irq/27-eth022:48:253
32902210,0sleep00-21swapper/022:06:410
230822210,1sleep30-21swapper/300:09:113
178499214,15cyclictest0-21swapper/019:39:590
178499210,2cyclictest28506-21sshd22:50:210
178499210,2cyclictest27831-21bash23:04:540
178499210,2cyclictest24523-21sshd22:50:010
178499210,2cyclictest24016-21sshd21:16:440
178499210,2cyclictest16570-21sshd00:15:550
178499210,2cyclictest0-21swapper/019:50:230
178499210,2cyclictest0-21swapper/000:05:230
178499210,20cyclictest0-21swapper/022:13:200
178499210,1cyclictest2100-21snmpd22:15:140
178499210,19cyclictest0-21swapper/021:35:120
178499210,18cyclictest7960-21sshd23:45:190
178499210,16cyclictest9086-21sshd22:29:410
178499210,13cyclictest0-21swapper/023:05:330
86702200,1sleep30-21swapper/323:20:343
219682200,18sleep3144650irq/27-eth019:53:553
195122200,3sleep10-21swapper/121:47:581
178999208,5cyclictest13012-21latency_hist22:14:591
178999200,15cyclictest30687-21users22:35:251
178499200,2cyclictest6130-21munin-node00:30:120
178499200,2cyclictest2786-21sshd23:30:220
178499200,2cyclictest23932-21sshd21:10:000
178499200,2cyclictest12419-21ls20:45:000
178499200,2cyclictest0-21swapper/021:45:150
178499200,1cyclictest0-21swapper/000:10:380
178499200,13cyclictest6196-21awk19:20:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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