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2026-05-20 - 03:50
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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 May 20, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4158702995462,45cyclictest0-21swapper/421:06:0410
41586989953334,498cyclictest0-21swapper/321:25:049
41586949953130,500cyclictest0-21swapper/219:15:048
41587029950610,29cyclictest0-21swapper/421:29:0410
415872199497497,0cyclictest0-21swapper/921:41:0415
4158736994920,490cyclictest0-21swapper/1200:37:044
415870299489487,2cyclictest210805-21kworker/4:0+i915-unordered00:37:0410
4158749994746,467cyclictest0-21swapper/1500:22:047
415870999473443,30cyclictest0-21swapper/620:40:0412
41586989946815,452cyclictest52-21ksoftirqd/322:00:049
4158698994680,467cyclictest0-21swapper/323:07:049
41586989946643,29cyclictest52-21ksoftirqd/300:25:049
415870999456454,1cyclictest0-21swapper/620:26:0412
415868899455453,1cyclictest4142081-21kworker/0:3+events20:32:470
41587319945324,29cyclictest0-21swapper/1123:16:493
4158736994512,446cyclictest65217-21awk21:08:264
41586949944623,29cyclictest0-21swapper/219:11:048
4158717994450,27cyclictest0-21swapper/821:38:2514
41587369944424,419cyclictest0-21swapper/1220:03:274
41586989944419,30cyclictest52-21ksoftirqd/300:07:049
415871799443443,0cyclictest0-21swapper/820:32:4714
41587029944224,30cyclictest0-21swapper/420:10:0410
41587369944019,420cyclictest0-21swapper/1222:53:504
41587369943918,420cyclictest0-21swapper/1221:05:274
4158736994390,438cyclictest0-21swapper/1220:34:384
41587079943918,28cyclictest0-21swapper/521:19:0411
41586989943816,30cyclictest0-21swapper/320:07:049
41586949943820,417cyclictest0-21swapper/220:53:268
41586949943820,417cyclictest0-21swapper/220:53:268
41587499943713,29cyclictest0-21swapper/1520:17:597
41587369943616,419cyclictest0-21swapper/1223:51:464
41587369943616,419cyclictest0-21swapper/1223:51:464
41587369943516,418cyclictest0-21swapper/1222:23:474
41587099943519,28cyclictest0-21swapper/619:36:0412
415870999434431,3cyclictest1818-21snmpd23:59:3712
41587029943412,29cyclictest0-21swapper/422:42:0410
41586989943415,30cyclictest0-21swapper/320:01:049
41586949943412,419cyclictest0-21swapper/221:48:288
41587099943224,407cyclictest0-21swapper/600:14:0412
41587409943112,418cyclictest0-21swapper/1322:54:255
415874099430429,1cyclictest0-21swapper/1322:42:165
4158736994296,419cyclictest0-21swapper/1219:53:274
4158707994297,29cyclictest0-21swapper/500:16:0411
415870799429427,1cyclictest9946-21kworker/5:2+i915-unordered20:45:0411
415870799429425,4cyclictest1818-21snmpd22:21:0111
415874999428425,2cyclictest150472-21kworker/u64:9+events_unbound23:05:047
4158744994278,418cyclictest0-21swapper/1423:27:506
4158694994272,30cyclictest0-21swapper/221:43:258
4158744994265,420cyclictest0-21swapper/1422:59:496
4158721994267,418cyclictest0-21swapper/919:49:2515
4158707994267,30cyclictest0-21swapper/521:14:0411
41587319942524,398cyclictest0-21swapper/1120:52:473
41587319942524,398cyclictest0-21swapper/1120:52:473
415870799425423,1cyclictest0-21swapper/520:13:2511
4158698994257,417cyclictest0-21swapper/300:30:279
415868899425423,2cyclictest0-21swapper/022:37:040
41587319942424,399cyclictest0-21swapper/1119:34:473
415870999424421,2cyclictest150470-21kworker/u64:6+events_unbound22:59:0412
4158698994245,418cyclictest0-21swapper/300:34:279
4158698994241,28cyclictest0-21swapper/323:25:269
41587449942324,398cyclictest0-21swapper/1419:58:266
41587369942326,396cyclictest0-21swapper/1222:58:254
41587369942324,398cyclictest0-21swapper/1219:10:284
41587219942325,397cyclictest0-21swapper/920:49:2515
41587219942325,397cyclictest0-21swapper/920:49:2515
41587079942315,29cyclictest0-21swapper/521:12:0411
415869099423422,1cyclictest1818-21snmpd19:16:391
4158740994222,419cyclictest0-21swapper/1321:31:275
41587369942223,398cyclictest0-21swapper/1222:20:264
415870999422421,1cyclictest0-21swapper/623:09:0412
415870999421417,3cyclictest1818-21snmpd00:22:1612
4158702994211,29cyclictest0-21swapper/422:22:0410
4158698994213,417cyclictest0-21swapper/321:12:479
415874999420419,1cyclictest102326-21kworker/15:1+i915-unordered22:18:497
41587029942022,397cyclictest0-21swapper/420:33:2510
41586949942016,401cyclictest0-21swapper/219:43:258
41587369941920,398cyclictest0-21swapper/1200:09:264
41587369941919,399cyclictest0-21swapper/1222:40:264
41587369941919,399cyclictest0-21swapper/1219:25:284
41587219941922,396cyclictest0-21swapper/921:51:2615
41587029941921,397cyclictest0-21swapper/421:13:2510
41587369941825,392cyclictest0-21swapper/1223:41:264
41587369941825,392cyclictest0-21swapper/1223:41:264
41587369941821,397cyclictest0-21swapper/1223:35:264
41587369941820,397cyclictest0-21swapper/1223:09:264
41587369941820,397cyclictest0-21swapper/1221:32:274
41587369941820,397cyclictest0-21swapper/1219:40:264
41587369941820,397cyclictest0-21swapper/1200:13:254
41587369941819,398cyclictest0-21swapper/1220:10:484
4158694994180,417cyclictest0-21swapper/223:04:278
41587369941720,396cyclictest0-21swapper/1220:13:474
41587369941718,398cyclictest0-21swapper/1223:55:264
41587369941718,398cyclictest0-21swapper/1223:45:254
41587369941718,398cyclictest0-21swapper/1223:45:254
41587369941717,399cyclictest0-21swapper/1221:24:464
415869499417416,1cyclictest0-21swapper/223:00:048
41587369941618,397cyclictest0-21swapper/1220:18:504
41587369941617,398cyclictest0-21swapper/1220:59:264
41587369941617,398cyclictest0-21swapper/1220:59:264
41587369941617,398cyclictest0-21swapper/1220:27:504
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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