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2026-03-13 - 04:19
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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 rack2slot0.osadl.org (updated Fri Mar 13, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
995221200,2sleep3296999cyclictest23:39:123
1810221170,1sleep118093-21sshd23:48:071
63862680,1sleep16389-21bash22:15:351
185332600,0sleep30-21swapper/300:07:243
138192580,0sleep10-21swapper/123:42:141
139692570,0sleep10-21swapper/100:34:341
209192560,0sleep10-21swapper/123:07:061
133352560,0sleep20-21swapper/222:09:312
116512560,0sleep00-21swapper/000:09:370
275082550,0sleep10-21swapper/122:34:451
220942550,0sleep20-21swapper/223:37:272
243062520,0sleep10-21swapper/121:39:341
196472520,0sleep119650-21grep22:20:191
66152510,0sleep10-21swapper/123:16:511
56912510,0sleep20-21swapper/222:19:042
143002510,1sleep1231rcuc/121:14:351
183862500,0sleep00-21swapper/000:23:550
162152500,0sleep30-21swapper/321:25:543
286352490,1sleep3649-21polkitd22:00:393
316402480,1sleep331637-21bash22:26:503
314922480,0sleep30-21swapper/300:25:023
308422480,0sleep10-21swapper/121:43:431
150022480,0sleep114853-21sshd22:50:071
36742460,1sleep23673-21bash23:46:522
247524432,7sleep00-21swapper/019:05:210
187492400,0sleep018721-21sshd23:01:240
252523210,7sleep10-21swapper/119:05:591
27152279,7sleep20-21swapper/219:08:202
248422230,1sleep2296499cyclictest00:13:282
258722210,7sleep30-21swapper/319:06:413
2964992020,0cyclictest321ktimersoftd/219:48:322
318672170,0sleep20-21swapper/223:08:032
2969991716,0cyclictest401ktimersoftd/321:53:403
269222170,0sleep30-21swapper/322:31:553
128912170,1sleep10-21swapper/100:26:091
2964991616,0cyclictest321ktimersoftd/220:35:122
249132160,0sleep10-21swapper/120:00:151
231882160,0sleep10-21swapper/122:59:051
312992150,1sleep00-21swapper/022:51:270
2969991513,1cyclictest24360-21lspci23:21:053
296499154,3cyclictest33-21ksoftirqd/200:04:592
296499154,3cyclictest33-21ksoftirqd/200:04:592
296499154,1cyclictest33-21ksoftirqd/223:34:332
2964991515,0cyclictest321ktimersoftd/220:46:452
2964991515,0cyclictest321ktimersoftd/220:27:212
159132150,0sleep20-21swapper/200:09:592
57372140,1sleep01-21systemd23:58:040
52832140,0sleep30-21swapper/321:18:333
327172140,0sleep30-21swapper/323:41:043
2969991413,0cyclictest1852-21lspci21:44:053
2969991412,0cyclictest401ktimersoftd/322:45:423
296499144,1cyclictest33-21ksoftirqd/223:43:202
296499143,4cyclictest649-21polkitd22:51:002
2964991414,0cyclictest321ktimersoftd/219:57:142
2964991414,0cyclictest321ktimersoftd/219:39:202
296399140,13cyclictest29979-21gdbus21:50:461
256612140,1sleep00-21swapper/000:19:030
141002140,0sleep00-21swapper/022:33:360
132322140,1sleep313229-21bash23:00:553
114162140,0sleep00-21swapper/023:25:270
96682130,0sleep00-21swapper/023:50:110
51552130,0sleep00-21swapper/022:12:000
2969991312,0cyclictest4833-21lspci23:33:143
2969991312,0cyclictest2419-21lspci22:35:173
2969991312,0cyclictest17576-21lspci00:37:353
296999130,12cyclictest642-21systemd-logind22:40:043
296499135,2cyclictest33-21ksoftirqd/200:38:592
296499134,1cyclictest33-21ksoftirqd/223:18:282
296499133,3cyclictest33-21ksoftirqd/222:28:372
296499133,2cyclictest649-21polkitd21:22:222
296499133,1cyclictest33-21ksoftirqd/200:26:162
296499132,1cyclictest33-21ksoftirqd/222:49:342
2964991313,0cyclictest321ktimersoftd/220:55:072
2964991313,0cyclictest321ktimersoftd/220:42:042
2964991313,0cyclictest321ktimersoftd/219:52:122
296499131,11cyclictest33-21ksoftirqd/221:53:052
296499130,12cyclictest6150-21bash22:35:352
2963991312,0cyclictest0-21swapper/123:00:061
296399130,1cyclictest9889-21sshd23:55:361
271252130,0sleep30-21swapper/323:29:393
140342130,0sleep30-21swapper/323:58:473
10772130,0sleep10-21swapper/122:11:341
35542120,0sleep1231rcuc/100:36:221
296999126,1cyclictest41-21ksoftirqd/300:23:343
2969991211,0cyclictest20924-21lspci00:15:493
2969991211,0cyclictest11591-21lspci22:19:433
296999120,1cyclictest624-13audispd21:46:143
296999120,11cyclictest22808-21grepconf.sh22:56:143
296999120,11cyclictest0-21swapper/300:10:353
296499126,3cyclictest33-21ksoftirqd/222:30:522
296499125,3cyclictest33-21ksoftirqd/223:55:542
296499124,1cyclictest33-21ksoftirqd/221:18:432
296499123,1cyclictest33-21ksoftirqd/200:21:522
296499122,4cyclictest33-21ksoftirqd/200:18:412
296499122,3cyclictest649-21polkitd22:55:122
296499122,3cyclictest33-21ksoftirqd/219:20:002
296499122,3cyclictest33-21ksoftirqd/200:31:312
296499122,1cyclictest33-21ksoftirqd/223:10:042
2964991212,0cyclictest321ktimersoftd/221:04:592
2964991212,0cyclictest321ktimersoftd/220:08:362
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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