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2026-04-11 - 15:39
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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 Apr 11, 2026 12:43:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
186562780,2sleep22852999cyclictest11:33:142
53652740,0sleep10-21swapper/112:01:311
273452740,0sleep00-21swapper/009:34:320
28529995756,1cyclictest335-21scsi_eh_212:36:372
28529995756,1cyclictest335-21scsi_eh_212:36:362
176882570,0sleep3391rcuc/311:05:033
201762560,0sleep00-21swapper/011:10:450
28529995555,0cyclictest335-21scsi_eh_212:27:412
28529995555,0cyclictest335-21scsi_eh_212:27:412
188252550,0sleep1231rcuc/110:59:361
49352540,0sleep14934-21sshd12:35:531
49352540,0sleep14934-21sshd12:35:531
280052540,0sleep20-21swapper/211:08:412
27232540,1sleep3674-21dbus-daemon11:00:543
195702530,0sleep119569-21bash11:10:421
70922520,0sleep10-21swapper/111:49:391
282642520,0sleep30-21swapper/312:29:383
282642520,0sleep30-21swapper/312:29:383
225072520,0sleep00-21swapper/009:22:460
300272510,0sleep030022-21bash11:00:270
266532510,0sleep30-21swapper/309:48:123
233582500,0sleep10-21swapper/109:59:001
75572490,0sleep10-21swapper/112:26:401
75572490,0sleep10-21swapper/112:26:401
151022490,1sleep215104-21bash11:10:182
134672490,0sleep20-21swapper/209:13:512
294382480,0sleep30-21swapper/310:57:423
183712480,1sleep118369-21lspci10:20:391
151852480,0sleep20-21swapper/212:15:592
151852480,0sleep20-21swapper/212:15:592
288802470,0sleep00-21swapper/009:27:270
211232470,0sleep10-21swapper/111:39:131
159252470,0sleep20-21swapper/211:15:592
274152460,0sleep10-21swapper/109:45:261
2818724433,7sleep10-21swapper/107:07:141
191172410,0sleep319119-21sshd12:23:573
123022410,0sleep00-21swapper/012:15:370
123022410,0sleep00-21swapper/012:15:360
192262360,0sleep10-21swapper/111:33:161
281742319,7sleep30-21swapper/307:07:043
282922297,7sleep20-21swapper/207:08:352
28530992222,0cyclictest401ktimersoftd/312:37:483
28530992222,0cyclictest401ktimersoftd/312:37:483
266182219,7sleep00-21swapper/007:05:050
255262210,0sleep10-21swapper/109:19:141
51482200,0sleep20-21swapper/210:38:582
28412200,0sleep2311rcuc/210:08:172
306432190,0sleep3391rcuc/311:42:563
306432190,0sleep3391rcuc/311:42:553
252542190,0sleep30-21swapper/310:18:323
247782170,0sleep30-21swapper/309:42:323
164812170,0sleep10-21swapper/110:34:251
163592170,0sleep20-21swapper/210:56:332
159332170,1sleep115838-21sshd09:33:331
107782150,0sleep00-21swapper/011:38:160
298132140,1sleep3391rcuc/312:17:363
298132140,1sleep3391rcuc/312:17:363
2853099140,1cyclictest21680-21sshd09:53:173
152532140,0sleep00-21swapper/011:44:290
152532140,0sleep00-21swapper/011:44:280
14562140,0sleep10-21swapper/110:10:541
141552140,0sleep0674-21dbus-daemon10:12:010
134362140,0sleep10-21swapper/111:07:241
128822140,0sleep20-21swapper/211:53:082
125802140,0sleep10-21swapper/111:18:351
28524991310,2cyclictest10322-21lspci10:47:440
107552130,0sleep20-21swapper/209:41:182
78572120,0sleep20-21swapper/209:20:562
28530991210,1cyclictest75750irq/24-eno1-rx-10:25:583
28530991210,1cyclictest75750irq/24-eno1-rx-10:25:573
28530991210,1cyclictest16784-21lspci10:48:183
2853099120,1cyclictest6806-21sshd09:20:483
2853099120,11cyclictest30846-21sshd10:13:283
2853099120,11cyclictest0-21swapper/311:49:373
2853099120,11cyclictest0-21swapper/309:26:173
28529991210,1cyclictest1-21systemd10:44:502
2852899120,1cyclictest0-21swapper/112:23:511
2852899120,0cyclictest0-21swapper/111:01:521
2852499120,1cyclictest26608-21sshd11:57:240
2852499120,0cyclictest0-21swapper/010:55:140
147942120,0sleep20-21swapper/210:20:202
2853099119,1cyclictest22581-21bash09:39:383
28530991110,0cyclictest0-21swapper/311:17:173
28530991110,0cyclictest0-21swapper/311:12:283
2853099110,10cyclictest0-21swapper/311:57:383
2853099110,10cyclictest0-21swapper/311:51:383
2853099110,0cyclictest0-21swapper/309:16:283
2852999119,1cyclictest27377-21sshd12:13:402
2852999119,1cyclictest15085-21lspci11:02:002
2852999110,10cyclictest0-21swapper/208:40:202
2852999110,0cyclictest0-21swapper/210:25:402
2852999110,0cyclictest0-21swapper/210:25:392
28528991110,0cyclictest0-21swapper/111:57:121
28528991110,0cyclictest0-21swapper/109:09:521
28524991110,0cyclictest0-21swapper/010:44:340
2852499110,10cyclictest4974-21sshd11:17:540
2852499110,10cyclictest0-21swapper/011:07:240
2852499110,10cyclictest0-21swapper/009:45:440
2852499110,10cyclictest0-21swapper/009:42:140
57582100,0sleep1241ktimersoftd/110:27:561
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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