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2025-12-09 - 04:06
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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 Tue Dec 09, 2025 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15596239958318,60cyclictest0-21swapper/620:52:1612
1559644995554,550cyclictest0-21swapper/1122:10:153
155962699552552,0cyclictest0-21swapper/722:47:1513
15596369954125,515cyclictest0-21swapper/1023:31:152
155960899541541,0cyclictest0-21swapper/222:21:158
1559623995350,504cyclictest0-21swapper/600:16:1512
155960899526495,31cyclictest0-21swapper/223:28:158
155961299514512,2cyclictest1690511-21kworker/3:1+i915-unordered22:10:159
15596369951212,499cyclictest0-21swapper/1000:32:152
15596369951212,499cyclictest0-21swapper/1000:32:152
155963699509509,0cyclictest1716462-21kworker/10:1+i915-unordered22:21:152
155963699496494,2cyclictest1777966-21kworker/10:1+i915-unordered23:28:152
155963699486485,1cyclictest0-21swapper/1023:35:152
155963699486456,30cyclictest0-21swapper/1019:35:162
15596019947110,460cyclictest0-21swapper/019:52:160
15596019946923,29cyclictest0-21swapper/019:55:590
155965399468438,30cyclictest0-21swapper/1321:38:155
15596239946820,30cyclictest0-21swapper/623:12:3812
15596239946818,30cyclictest0-21swapper/619:25:3812
15596239946517,29cyclictest0-21swapper/620:41:3712
15596019946411,30cyclictest1794600-21perf23:54:100
15596239946317,29cyclictest0-21swapper/623:24:3712
15596369946116,29cyclictest0-21swapper/1022:13:152
155963099460459,1cyclictest77250irq/159-i91522:10:1514
15596239946011,30cyclictest0-21swapper/600:02:0112
155960199459458,1cyclictest0-21swapper/022:10:150
1559623994588,30cyclictest0-21swapper/622:07:0012
155962099458456,2cyclictest1671196-21kworker/5:0+i915-unordered21:38:1511
155964899457457,0cyclictest1790209-21kworker/12:2+i915-unordered23:48:154
15596239945711,30cyclictest0-21swapper/619:48:0012
1559653994551,453cyclictest0-21swapper/1323:39:395
1559657994480,3cyclictest0-21swapper/1419:22:136
15596369944822,29cyclictest0-21swapper/1019:42:152
155962099448447,1cyclictest1786157-21kworker/5:2+events23:39:3911
15596019944825,30cyclictest0-21swapper/019:28:150
15596019944825,30cyclictest0-21swapper/019:19:580
1559659994450,1cyclictest0-21swapper/1520:16:397
1559659994440,1cyclictest0-21swapper/1500:20:397
15596369944423,420cyclictest0-21swapper/1019:46:592
1559634994440,0cyclictest0-21swapper/900:20:3915
15596239944420,28cyclictest0-21swapper/619:23:1512
15596089944421,422cyclictest0-21swapper/222:03:598
155964499443442,1cyclictest1741194-21kworker/11:0+pm22:52:503
15596239944322,420cyclictest0-21swapper/619:50:3912
155960199443443,0cyclictest0-21swapper/022:05:150
15596019944324,418cyclictest0-21swapper/023:02:370
15596369944222,419cyclictest0-21swapper/1022:52:002
15596369944221,420cyclictest0-21swapper/1000:14:592
15596239944216,30cyclictest0-21swapper/619:30:3812
15596089944221,420cyclictest0-21swapper/223:22:598
15596369944022,418cyclictest0-21swapper/1020:45:582
15596239944021,417cyclictest0-21swapper/621:31:3712
155960199440440,0cyclictest0-21swapper/022:47:150
15596449943923,416cyclictest0-21swapper/1119:43:153
15596449943917,421cyclictest0-21swapper/1120:59:113
15596369943919,420cyclictest0-21swapper/1020:25:002
15596369943918,420cyclictest0-21swapper/1023:20:592
15596369943918,420cyclictest0-21swapper/1022:17:372
15596239943915,28cyclictest0-21swapper/623:58:5712
15596369943819,418cyclictest0-21swapper/1000:28:362
15596369943819,418cyclictest0-21swapper/1000:28:362
15596369943818,420cyclictest0-21swapper/1021:57:002
15596369943818,420cyclictest0-21swapper/1021:57:002
155960199438437,1cyclictest0-21swapper/023:16:150
15596369943717,419cyclictest0-21swapper/1022:37:002
155960199437436,1cyclictest0-21swapper/021:38:150
15596369943618,418cyclictest0-21swapper/1020:13:002
155960199436435,1cyclictest0-21swapper/000:26:150
155960199436435,1cyclictest0-21swapper/000:26:150
155965399435435,0cyclictest0-21swapper/1323:38:155
155964499435432,3cyclictest1717014-21kworker/u64:0+events_unbound22:32:153
15596159943516,417cyclictest0-21swapper/420:38:5810
15596449943413,420cyclictest0-21swapper/1100:11:373
15596239943415,417cyclictest0-21swapper/622:32:3812
15596239943415,0cyclictest0-21swapper/621:26:3712
15596239943414,418cyclictest0-21swapper/622:16:5912
15596159943415,417cyclictest0-21swapper/423:41:3610
155960199434434,0cyclictest0-21swapper/023:38:150
15596019943415,419cyclictest0-21swapper/021:54:380
15596019943415,419cyclictest0-21swapper/021:54:380
15596019943414,419cyclictest0-21swapper/000:31:580
15596019943414,419cyclictest0-21swapper/000:31:580
15596239943314,417cyclictest0-21swapper/620:23:3812
1559612994338,417cyclictest1748025-21memory22:49:379
155965799432431,1cyclictest1823243-21kworker/14:0+i915-unordered00:26:156
155965799432431,1cyclictest1823243-21kworker/14:0+i915-unordered00:26:156
15596449943211,421cyclictest0-21swapper/1121:16:003
15596159943219,412cyclictest0-21swapper/420:14:1110
155960199432432,0cyclictest0-21swapper/022:21:150
1559608994319,421cyclictest0-21swapper/219:41:378
15596239943010,418cyclictest0-21swapper/623:22:3712
155961299430430,0cyclictest0-21swapper/320:22:379
15596539942911,417cyclictest0-21swapper/1321:58:155
15596539942911,417cyclictest0-21swapper/1321:58:155
1559644994297,422cyclictest0-21swapper/1100:29:373
1559644994297,422cyclictest0-21swapper/1100:29:373
1559644994297,421cyclictest0-21swapper/1121:34:013
15596449942910,419cyclictest0-21swapper/1123:33:573
15596019942910,416cyclictest0-21swapper/020:02:150
1559644994288,419cyclictest0-21swapper/1121:54:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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