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2026-04-19 - 22:54
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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 Sun Apr 19, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139162950,2sleep1358999cyclictest11:48:181
277722810,0sleep10-21swapper/111:24:421
33302630,1sleep1241ktimersoftd/112:09:331
110162560,1sleep011012-21sshd10:52:490
116942550,1sleep21-21systemd09:46:152
116342550,1sleep11-21systemd10:02:561
326332530,0sleep00-21swapper/009:48:050
257352530,0sleep20-21swapper/211:46:312
268072520,0sleep30-21swapper/311:57:413
140052510,0sleep20-21swapper/210:22:352
299082500,0sleep30-21swapper/310:29:333
253752500,1sleep341-21ksoftirqd/312:00:173
231862500,0sleep20-21swapper/209:55:322
231862500,0sleep20-21swapper/209:55:322
220812500,0sleep022084-21grep11:40:400
220812500,0sleep022084-21grep11:40:400
312392490,0sleep20-21swapper/210:49:032
203202490,0sleep10-21swapper/109:17:381
18492490,1sleep11844-21lspci09:37:071
146572490,0sleep20-21swapper/211:09:452
110372490,1sleep0674-21dbus-daemon10:41:440
100782490,1sleep010077-21seq09:12:280
279732480,1sleep027969-21lspci12:03:190
140792480,0sleep00-21swapper/011:04:110
259862470,1sleep025981-21sshd11:54:540
230612470,0sleep00-21swapper/011:46:170
195372460,0sleep10-21swapper/110:48:021
34552380,0sleep23453-21bash10:55:002
166523226,3sleep30-21swapper/307:05:103
32742298,7sleep20-21swapper/207:07:332
33772287,7sleep00-21swapper/007:08:490
317822211,7sleep10-21swapper/107:06:211
234242190,0sleep10-21swapper/110:40:051
93882180,1sleep39384-21lspci09:12:233
306582180,0sleep10-21swapper/109:30:321
102872180,0sleep10-21swapper/109:48:581
358999170,15cyclictest674-21dbus-daemon09:11:101
3583991717,0cyclictest101ktimersoftd/007:16:290
3583991715,1cyclictest9-21ksoftirqd/012:34:090
278062170,1sleep127794-21lspci11:16:221
123642170,0sleep30-21swapper/311:26:053
3583991616,0cyclictest26472-21kworker/0:008:59:320
3583991616,0cyclictest12209-21kworker/0:107:51:460
3583991616,0cyclictest12209-21kworker/0:107:45:100
258722160,0sleep00-21swapper/012:39:120
358399158,1cyclictest9-21ksoftirqd/009:57:320
358399158,1cyclictest9-21ksoftirqd/009:57:320
3583991515,0cyclictest26472-21kworker/0:009:06:180
3583991515,0cyclictest26472-21kworker/0:008:52:360
3583991515,0cyclictest26472-21kworker/0:008:42:320
3583991515,0cyclictest26472-21kworker/0:008:23:270
3583991515,0cyclictest26472-21kworker/0:008:18:160
3583991514,0cyclictest26472-21kworker/0:008:33:420
280352150,1sleep328021-21sshd11:13:393
13482150,0sleep10-21swapper/112:34:201
126492150,1sleep1241ktimersoftd/107:30:111
58132140,0sleep20-21swapper/212:09:452
358399145,1cyclictest9-21ksoftirqd/012:16:190
358399145,1cyclictest9-21ksoftirqd/011:58:030
358399145,1cyclictest9-21ksoftirqd/010:00:070
3583991414,0cyclictest26472-21kworker/0:008:37:200
3583991414,0cyclictest26472-21kworker/0:008:28:300
3583991414,0cyclictest26472-21kworker/0:008:09:160
3583991414,0cyclictest12209-21kworker/0:107:58:520
3583991414,0cyclictest12209-21kworker/0:107:44:500
3583991414,0cyclictest12209-21kworker/0:107:36:300
3583991414,0cyclictest12209-21kworker/0:107:31:080
3583991414,0cyclictest1087-21kworker/0:207:13:380
358399140,12cyclictest28069-21sshd11:10:490
160012140,1sleep20-21swapper/210:14:262
360299130,1cyclictest7654-21bash09:57:023
360299130,1cyclictest7654-21bash09:57:023
360299130,12cyclictest0-21swapper/309:51:123
360299130,12cyclictest0-21swapper/309:51:123
360299130,11cyclictest23375-21sshd10:31:423
3593991311,1cyclictest10410-21lspci11:39:462
3589991311,1cyclictest10599-21sshd12:37:511
358399135,1cyclictest9-21ksoftirqd/012:07:030
358399134,1cyclictest9-21ksoftirqd/010:25:450
358399134,1cyclictest9-21ksoftirqd/010:08:220
358399133,1cyclictest9-21ksoftirqd/010:21:270
358399133,1cyclictest9-21ksoftirqd/010:15:220
358399132,3cyclictest9-21ksoftirqd/010:37:240
358399132,1cyclictest9-21ksoftirqd/010:57:410
358399132,1cyclictest16125-21grep12:10:320
3583991313,0cyclictest12209-21kworker/0:108:02:100
3583991310,2cyclictest699-21gdbus10:46:390
316992130,0sleep20-21swapper/211:33:172
282532130,0sleep20-21swapper/210:09:582
247432130,1sleep0111rcuc/009:36:190
213422130,0sleep00-21swapper/011:18:370
138242130,0sleep20-21swapper/211:42:462
138242130,0sleep20-21swapper/211:42:452
3593991210,1cyclictest29979-21gdbus11:04:062
359399120,1cyclictest22846-21bash10:28:562
359399120,1cyclictest1026-21sshd10:04:462
359399120,11cyclictest13778-21sshd12:21:262
3589991210,1cyclictest12242-21sshd09:54:411
3589991210,1cyclictest12242-21sshd09:54:411
358999120,11cyclictest19338-21bash11:26:411
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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