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2026-03-28 - 02:17
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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 Sat Mar 28, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
321652820,0sleep032164-21sshd23:07:040
25132810,2sleep02929399cyclictest21:56:310
262042760,1sleep26850-21kworker/u8:021:36:502
235982580,0sleep10-21swapper/122:52:431
22702560,0sleep10-21swapper/121:34:531
207032560,0sleep00-21swapper/021:18:300
68252550,1sleep06821-21sshd23:59:270
166182550,0sleep30-21swapper/322:33:033
304252540,0sleep20-21swapper/200:09:382
108622530,0sleep210840-21bash22:13:322
152602520,1sleep115264-21gltestperf23:00:121
98902510,0sleep00-21swapper/022:18:550
51082510,1sleep05103-21bash23:02:040
46512510,0sleep10-21swapper/123:26:331
13612500,0sleep20-21swapper/223:09:582
192702490,1sleep019272-21grep00:33:120
158812490,0sleep00-21swapper/022:57:310
35742480,0sleep20-21swapper/223:50:572
103692470,0sleep00-21swapper/021:35:290
116662440,0sleep10-21swapper/123:43:301
134102410,0sleep30-21swapper/322:13:453
7972400,0sleep0101ktimersoftd/023:29:000
98062390,0sleep20-21swapper/223:16:032
209192380,0sleep20-21swapper/221:44:352
2889923422,7sleep30-21swapper/319:06:203
2889923422,7sleep30-21swapper/319:06:203
2917323019,7sleep10-21swapper/119:09:481
2917323019,7sleep10-21swapper/119:09:471
291772298,7sleep00-21swapper/019:09:510
291772298,7sleep00-21swapper/019:09:500
2910522413,7sleep20-21swapper/219:08:562
2910522413,7sleep20-21swapper/219:08:562
119762180,0sleep00-21swapper/022:13:370
62212170,0sleep20-21swapper/200:26:382
47152170,0sleep30-21swapper/323:34:473
309322170,0sleep20-21swapper/222:04:232
29293991716,0cyclictest10870-21kworker/0:222:54:360
281202170,1sleep233-21ksoftirqd/223:12:122
29293991616,0cyclictest101ktimersoftd/019:51:280
29293991615,0cyclictest17952-21lspci22:38:360
26292160,0sleep20-21swapper/221:27:572
24552160,1sleep32458-21bash23:56:183
23492160,0sleep1231rcuc/123:23:391
316512150,0sleep10-21swapper/122:17:591
29293991515,0cyclictest9252-21kworker/0:219:38:340
29293991513,1cyclictest28991-21kworker/0:300:19:430
29293991513,1cyclictest10428-21kworker/0:222:23:340
28652150,0sleep20-21swapper/200:34:342
280232150,1sleep228019-21lspci00:36:382
154592150,0sleep30-21swapper/323:35:363
80962140,0sleep00-21swapper/023:54:070
326012140,0sleep20-21swapper/221:23:502
319072140,0sleep20-21swapper/222:07:062
316522140,0sleep329977-21packagekitd22:39:483
301082140,0sleep30-21swapper/322:09:443
29293991414,0cyclictest28991-21kworker/0:300:24:340
29293991413,0cyclictest10874-21kworker/0:022:45:570
29293991413,0cyclictest10428-21kworker/0:222:26:430
29293991413,0cyclictest101ktimersoftd/023:31:070
240512140,0sleep00-21swapper/021:42:050
5822130,0sleep2311rcuc/200:20:402
2931099130,11cyclictest1-21systemd21:24:433
2930699135,3cyclictest33-21ksoftirqd/222:47:022
2930699130,12cyclictest674-21dbus-daemon23:28:072
29299991311,1cyclictest624-13audispd22:29:121
29299991311,1cyclictest0-21swapper/100:25:121
29293991313,0cyclictest18055-21kworker/0:323:45:020
29293991312,0cyclictest32550irq/27-ahci[00021:46:100
29293991312,0cyclictest101ktimersoftd/022:03:480
264002130,0sleep10-21swapper/122:20:151
124932130,0sleep30-21swapper/321:43:523
2931099120,1cyclictest0-21swapper/323:06:423
2931099120,1cyclictest0-21swapper/300:15:123
2931099120,1cyclictest0-21swapper/300:11:233
2930699123,3cyclictest33-21ksoftirqd/223:31:122
29306991210,1cyclictest3562-21systemd-cgroups23:42:482
2930699120,11cyclictest1660-21sshd21:53:472
29299991210,1cyclictest0-21swapper/100:10:411
2929999120,1cyclictest6221-21sshd21:12:521
2929999120,11cyclictest18614-21bash22:41:221
2929999120,11cyclictest18614-21bash22:41:211
29293991212,0cyclictest5621-21kworker/0:119:30:140
29293991212,0cyclictest23434-21kworker/0:221:23:050
29293991211,0cyclictest4497-21lspci21:54:020
29293991211,0cyclictest22316-21lspci00:38:550
29293991211,0cyclictest101ktimersoftd/023:12:440
29293991210,1cyclictest10890-21kworker/0:000:04:060
29293991210,1cyclictest0-21swapper/023:36:160
173302120,0sleep11026-21sshd23:52:081
29310991110,0cyclictest0-21swapper/322:53:423
29310991110,0cyclictest0-21swapper/321:52:223
2931099110,10cyclictest4760-21bash23:48:233
2931099110,10cyclictest0-21swapper/322:03:023
2931099110,0cyclictest0-21swapper/322:16:123
2930699119,1cyclictest30400-21sshd00:17:482
2930699116,2cyclictest33-21ksoftirqd/221:56:492
2930699112,1cyclictest33-21ksoftirqd/223:35:292
2930699111,2cyclictest131rcu_sched22:50:252
29306991110,0cyclictest527-40kipmi000:13:162
29306991110,0cyclictest0-21swapper/222:44:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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