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2026-03-25 - 08:56
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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 Mar 25, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2100321060,0sleep20-21swapper/221:40:132
15252930,2sleep32133899cyclictest22:58:523
15252930,2sleep32133899cyclictest22:58:523
12022880,0sleep00-21swapper/023:59:250
37142810,2sleep12132899cyclictest23:01:541
54852770,4sleep20-21swapper/223:48:102
156782770,0sleep10-21swapper/122:08:121
298692600,0sleep30-21swapper/321:28:243
63112570,0sleep10-21swapper/121:33:191
312432560,0sleep30-21swapper/322:38:253
227262560,1sleep222723-21sshd00:10:002
193992560,0sleep20-21swapper/223:58:072
115952550,1sleep3674-21dbus-daemon00:29:043
60342520,1sleep16032-21sshd00:25:381
84222510,0sleep00-21swapper/022:53:440
28142510,1sleep22810-21sshd23:50:462
10932510,0sleep00-21swapper/022:18:240
45282500,0sleep3391rcuc/321:35:533
221292500,0sleep1231rcuc/123:43:521
37282490,0sleep30-21swapper/300:31:123
99472480,0sleep20-21swapper/222:04:522
255582480,2sleep32133899cyclictest00:01:323
119172480,0sleep20-21swapper/222:51:062
191832470,0sleep00-21swapper/022:25:410
233262460,0sleep223328-21grep22:23:142
307292440,1sleep0111rcuc/023:30:130
274812430,1sleep327466-21bash22:29:243
2101823328,3sleep00-21swapper/019:07:310
211082298,7sleep10-21swapper/119:08:401
2102022311,7sleep20-21swapper/219:07:332
2091122210,7sleep30-21swapper/319:06:153
238372200,0sleep20-21swapper/222:08:562
47602190,4sleep20-21swapper/222:41:492
2133899190,12cyclictest19238-21sshd22:22:523
21328991919,0cyclictest241ktimersoftd/122:49:121
202392190,0sleep10-21swapper/123:37:551
310582180,1sleep0101ktimersoftd/023:12:590
310582180,1sleep0101ktimersoftd/023:12:590
15662180,1sleep09-21ksoftirqd/023:39:100
83692170,0sleep18370-21systemd-cgroups22:36:191
73372170,1sleep07338-21bash22:33:220
27032170,0sleep20-21swapper/221:49:582
80542160,0sleep30-21swapper/300:08:413
30812160,0sleep10-21swapper/123:30:341
222812160,1sleep341-21ksoftirqd/323:49:433
21328991615,0cyclictest9188-21lspci21:44:511
21328991614,1cyclictest24713-21kworker/1:123:18:451
21328991614,1cyclictest19570-21kworker/1:223:52:561
16722160,0sleep01593-21sshd21:13:190
300602150,0sleep30-21swapper/300:10:343
275202150,0sleep127522-21bash21:24:131
2132899152,1cyclictest16473-21consoletype21:26:431
21328991514,0cyclictest614-21lspci00:19:311
21328991514,0cyclictest22765-21kworker/1:221:58:311
21328991514,0cyclictest18491-21lspci00:06:411
21328991513,1cyclictest31195-21kworker/1:322:21:231
12982150,1sleep21285-21bash00:08:042
234662140,0sleep30-21swapper/321:43:143
2133899140,10cyclictest0-21swapper/323:04:423
2133899140,10cyclictest0-21swapper/322:07:123
21328991413,0cyclictest29149-21lspci22:00:441
21328991412,1cyclictest19012-21kworker/1:222:31:481
2132899141,12cyclictest0-21swapper/122:25:431
178702140,0sleep30-21swapper/322:16:593
4932130,0sleep30-21swapper/323:30:203
2133899139,0cyclictest0-21swapper/300:17:123
2133899130,0cyclictest0-21swapper/322:04:223
21328991313,0cyclictest527-40kipmi022:55:131
21328991313,0cyclictest527-40kipmi022:55:131
21328991311,1cyclictest16240-21kworker/1:221:18:591
2132899130,12cyclictest15631-21sshd22:19:431
2132399130,12cyclictest27066-21sshd23:21:100
2132399130,12cyclictest0-21swapper/023:41:400
105742130,0sleep10-21swapper/123:11:081
105742130,0sleep10-21swapper/123:11:081
104042130,0sleep20-21swapper/222:45:132
2133899120,1cyclictest1-21systemd23:13:423
2133899120,1cyclictest1-21systemd23:13:423
2133899120,1cyclictest0-21swapper/322:43:533
2133899120,11cyclictest6094-21sshd21:13:523
21334991210,1cyclictest29003-21ntp_kernel_pll_19:25:152
2133499120,1cyclictest0-21swapper/200:36:062
2133499120,11cyclictest6618-21bash21:13:552
2133499120,11cyclictest17519-21sshd23:11:462
2133499120,11cyclictest17519-21sshd23:11:452
2133499120,11cyclictest0-21swapper/223:36:552
2133499120,11cyclictest0-21swapper/221:32:052
2132899129,2cyclictest699-21gdbus22:10:531
21328991211,1cyclictest17869-21kworker/1:023:06:371
21328991210,1cyclictest9307-21lspci21:47:391
21328991210,1cyclictest17179-21lspci21:39:531
2132899120,1cyclictest131rcu_sched00:13:441
2132899120,11cyclictest18961-21bash00:21:031
2132399120,11cyclictest674-21dbus-daemon21:52:400
2132399120,11cyclictest1-21systemd21:15:110
2132399120,11cyclictest0-21swapper/022:49:510
30972110,1sleep233-21ksoftirqd/223:21:582
2133899119,1cyclictest1883-21bash21:32:523
2133899110,10cyclictest13254-21lspci21:45:123
2133899110,10cyclictest0-21swapper/321:21:423
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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