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2025-12-24 - 19:19
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack0slot5.osadl.org (updated Wed Dec 24, 2025 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
337488499713315,397cyclictest0-21swapper/619:49:2112
33749229947325,30cyclictest0-21swapper/1523:50:227
33748929946925,29cyclictest0-21swapper/823:36:5914
33748929946925,29cyclictest0-21swapper/823:36:5914
33749229946822,30cyclictest0-21swapper/1500:13:007
33749229946522,29cyclictest0-21swapper/1523:03:217
33749229946518,29cyclictest0-21swapper/1522:20:227
33749229946415,30cyclictest0-21swapper/1523:44:247
33749029946410,59cyclictest0-21swapper/1019:55:012
33748659946325,31cyclictest0-21swapper/122:56:381
33749229946114,30cyclictest0-21swapper/1500:28:247
33749159945710,29cyclictest0-21swapper/1322:06:385
3374861994578,30cyclictest0-21swapper/021:34:000
3374902994568,29cyclictest0-21swapper/1021:20:222
3374915994537,29cyclictest0-21swapper/1323:58:385
33749229945125,28cyclictest0-21swapper/1519:46:017
33748619945022,30cyclictest0-21swapper/021:44:010
33749229944923,29cyclictest0-21swapper/1519:44:247
337487899449447,2cyclictest1802-21snmpd20:12:1210
33749229944725,28cyclictest0-21swapper/1520:20:237
33749159944624,421cyclictest0-21swapper/1300:37:245
33749229944521,29cyclictest0-21swapper/1522:03:017
3374892994450,30cyclictest0-21swapper/800:27:0114
337486599445443,2cyclictest0-21swapper/100:27:511
337486599445443,1cyclictest3428254-21kworker/1:0+i915-unordered20:30:231
33749229944423,418cyclictest0-21swapper/1520:16:227
33748659944424,419cyclictest0-21swapper/123:15:241
3374922994431,30cyclictest0-21swapper/1521:42:227
33748659944325,417cyclictest0-21swapper/123:02:011
33748659944324,418cyclictest0-21swapper/123:30:011
33748659944324,418cyclictest0-21swapper/123:30:011
33748659944324,418cyclictest0-21swapper/122:14:241
33748929944223,418cyclictest0-21swapper/823:27:0014
33748929944223,418cyclictest0-21swapper/823:27:0014
33748929944223,418cyclictest0-21swapper/820:39:0014
33748929944223,418cyclictest0-21swapper/820:39:0014
33748659944225,416cyclictest0-21swapper/123:49:231
33749209944123,417cyclictest0-21swapper/1423:52:386
33749159944119,420cyclictest0-21swapper/1300:20:245
33749159944118,422cyclictest0-21swapper/1323:13:015
33748659944122,418cyclictest0-21swapper/123:27:211
33748659944122,418cyclictest0-21swapper/123:27:211
33749159944023,415cyclictest0-21swapper/1321:28:385
33749079944021,418cyclictest0-21swapper/1123:37:383
33749079944021,418cyclictest0-21swapper/1123:37:383
33748659944020,417cyclictest0-21swapper/121:21:241
33749029943918,29cyclictest0-21swapper/1000:18:382
33748659943922,416cyclictest0-21swapper/100:24:231
33749159943822,415cyclictest0-21swapper/1323:51:385
33748929943824,414cyclictest0-21swapper/800:11:2214
33749159943614,0cyclictest0-21swapper/1320:12:385
33748809943615,30cyclictest0-21swapper/500:00:3811
33748979943520,414cyclictest0-21swapper/900:16:3815
33749209943316,416cyclictest0-21swapper/1400:32:216
3374902994335,30cyclictest0-21swapper/1022:53:012
337490299433432,1cyclictest1802-21snmpd21:07:132
3374915994328,420cyclictest0-21swapper/1321:43:235
33749029943215,416cyclictest0-21swapper/1022:17:382
33748739943215,416cyclictest0-21swapper/323:41:389
33749159943111,0cyclictest0-21swapper/1322:20:025
3374902994316,29cyclictest0-21swapper/1019:17:012
33749159943010,419cyclictest0-21swapper/1320:54:005
3374902994305,29cyclictest0-21swapper/1022:26:002
337486599430429,1cyclictest0-21swapper/119:12:131
33749159942910,418cyclictest0-21swapper/1321:47:015
3374922994280,31cyclictest0-21swapper/1522:49:007
33748809942812,415cyclictest0-21swapper/521:40:3811
33748739942812,415cyclictest0-21swapper/321:50:389
3374869994289,418cyclictest0-21swapper/223:48:388
3374915994278,419cyclictest0-21swapper/1320:44:225
3374915994278,419cyclictest0-21swapper/1320:44:225
3374915994268,417cyclictest1411ktimers/1323:35:215
3374915994268,417cyclictest1411ktimers/1323:35:215
3374915994268,417cyclictest0-21swapper/1320:22:215
3374915994266,419cyclictest0-21swapper/1322:16:225
3374915994265,419cyclictest0-21swapper/1323:18:025
33749159942626,399cyclictest0-21swapper/1322:46:015
33749159942625,400cyclictest0-21swapper/1321:51:235
3374897994268,416cyclictest0-21swapper/923:23:3815
337489799426425,1cyclictest3436390-21kworker/9:1+pm21:07:1315
3374892994269,416cyclictest0-21swapper/822:47:2114
3374884994268,414cyclictest0-21swapper/620:53:3812
3374915994256,418cyclictest0-21swapper/1323:08:005
3374892994258,417cyclictest0-21swapper/823:06:2314
3374892994257,417cyclictest0-21swapper/822:21:0114
33748929942512,412cyclictest0-21swapper/800:00:5914
3374915994246,417cyclictest0-21swapper/1320:31:235
33749159942424,399cyclictest0-21swapper/1322:33:245
3374880994236,417cyclictest0-21swapper/500:39:0011
3374865994235,418cyclictest0-21swapper/122:35:011
3374865994230,30cyclictest0-21swapper/120:22:381
3374915994220,421cyclictest0-21swapper/1321:24:235
33748659942222,399cyclictest0-21swapper/123:37:211
33748659942222,399cyclictest0-21swapper/123:37:211
3374915994213,415cyclictest0-21swapper/1300:10:385
3374915994210,420cyclictest0-21swapper/1321:36:245
3374915994210,420cyclictest0-21swapper/1300:03:225
3374865994212,418cyclictest0-21swapper/123:10:231
3374865994212,418cyclictest0-21swapper/120:56:021
3374865994211,417cyclictest0-21swapper/100:30:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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