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2026-04-12 - 18:38
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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 rack7slot1.osadl.org (updated Sun Apr 12, 2026 12:45:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15454211953,23sleep20-21swapper/207:09:462
13602211754,23sleep30-21swapper/307:05:053
15200211452,23sleep10-21swapper/107:06:321
1526428355,23sleep00-21swapper/007:07:190
281142630,1sleep33116-21stress12:37:373
93072570,1sleep33114-21stress09:22:283
15571994311,24cyclictest0-21swapper/007:42:230
1557199429,23cyclictest0-21swapper/007:21:540
1557199409,20cyclictest0-21swapper/007:30:340
1557199405,28cyclictest0-21swapper/008:19:350
15571994010,27cyclictest0-21swapper/012:05:290
8212395,14sleep20-21swapper/207:47:522
1557499394,32cyclictest9561-21/usr/sbin/munin10:40:283
15574993918,19cyclictest0-21swapper/311:15:303
15574993915,21cyclictest0-21swapper/312:30:143
1557199399,17cyclictest0-21swapper/009:07:240
1557199396,20cyclictest0-21swapper/008:40:060
180632385,14sleep20-21swapper/208:27:422
1557499383,32cyclictest3114-21stress12:25:353
1557499383,32cyclictest0-21swapper/310:16:473
15574993817,19cyclictest0-21swapper/310:10:223
15574993815,20cyclictest0-21swapper/312:05:393
15574993815,20cyclictest0-21swapper/311:40:173
15574993815,20cyclictest0-21swapper/311:13:093
1557199387,23cyclictest0-21swapper/007:45:060
1557199385,20cyclictest0-21swapper/008:25:060
307722375,10sleep20-21swapper/208:55:492
290292375,11sleep20-21swapper/207:38:462
223772375,11sleep20-21swapper/208:38:042
222882375,10sleep00-21swapper/008:36:540
1557499372,32cyclictest3114-21stress12:00:163
15574993715,20cyclictest0-21swapper/310:00:333
1557199379,22cyclictest0-21swapper/007:15:320
1557199378,23cyclictest0-21swapper/007:55:200
1557199378,20cyclictest0-21swapper/007:25:030
1557199375,19cyclictest0-21swapper/008:10:480
93372365,14sleep20-21swapper/208:05:562
93372365,14sleep20-21swapper/208:05:562
5682365,14sleep10-21swapper/109:01:571
266682365,14sleep20-21swapper/207:30:442
265092365,10sleep20-21swapper/208:46:022
248302365,14sleep20-21swapper/207:29:272
226032365,13sleep20-21swapper/207:23:382
175962365,13sleep20-21swapper/207:14:072
1557499362,32cyclictest3116-21stress11:28:253
1557499362,32cyclictest3116-21stress11:28:253
1557499362,31cyclictest3114-21stress09:35:183
15574993615,19cyclictest0-21swapper/311:45:143
15574993615,19cyclictest0-21swapper/310:45:483
15574993615,19cyclictest0-21swapper/310:45:483
15574993615,19cyclictest0-21swapper/310:09:213
15574993615,19cyclictest0-21swapper/309:10:073
15574993615,18cyclictest0-21swapper/310:39:473
15574993615,18cyclictest0-21swapper/310:30:403
15574993615,18cyclictest0-21swapper/309:25:233
15574993614,20cyclictest0-21swapper/311:50:343
1557199368,21cyclictest0-21swapper/008:05:200
1557199368,21cyclictest0-21swapper/008:05:200
1557199367,27cyclictest0-21swapper/010:20:130
1557199365,23cyclictest0-21swapper/009:00:180
15571993615,18cyclictest0-21swapper/012:18:000
15571993610,20cyclictest0-21swapper/007:13:230
15571993610,12cyclictest0-21swapper/008:58:560
118012365,13sleep20-21swapper/208:14:582
310202355,13sleep10-21swapper/108:58:521
310012355,14sleep10-21swapper/107:41:201
28742355,14sleep20-21swapper/207:51:012
224492355,14sleep10-21swapper/107:21:401
200852355,13sleep20-21swapper/208:31:222
1557499355,28cyclictest0-21swapper/308:43:553
1557499354,29cyclictest3109-21/usr/sbin/munin10:25:113
1557499353,29cyclictest3114-21stress10:55:213
1557499353,29cyclictest1437-21irqstats11:35:243
1557499353,29cyclictest1437-21irqstats11:35:243
1557499353,29cyclictest11912-21/usr/sbin/munin09:30:313
1557499352,30cyclictest3114-21stress09:48:423
1557499352,30cyclictest3114-21stress09:48:423
15574993516,17cyclictest0-21swapper/311:20:193
15574993515,18cyclictest0-21swapper/312:15:293
15574993515,18cyclictest0-21swapper/310:50:303
15574993515,17cyclictest0-21swapper/312:20:273
15574993515,17cyclictest0-21swapper/311:02:163
15574993515,17cyclictest0-21swapper/311:02:163
15574993514,18cyclictest0-21swapper/311:05:253
15574993514,18cyclictest0-21swapper/309:50:143
1557399355,20cyclictest0-21swapper/212:00:222
15573993517,15cyclictest0-21swapper/209:29:082
15573993516,16cyclictest0-21swapper/211:22:522
15573993515,17cyclictest0-21swapper/209:57:122
1557299355,22cyclictest0-21swapper/111:40:141
15572993515,17cyclictest0-21swapper/111:07:101
1557199357,25cyclictest0-21swapper/010:30:110
1557199356,19cyclictest0-21swapper/008:53:240
15571993515,18cyclictest0-21swapper/008:30:060
15571993515,18cyclictest0-21swapper/008:20:060
15571993513,19cyclictest0-21swapper/009:40:150
6962345,13sleep10-21swapper/107:46:141
266922345,13sleep10-21swapper/107:31:031
246672345,14sleep10-21swapper/108:44:491
160362345,13sleep20-21swapper/208:24:092
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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