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2025-12-23 - 16:20
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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 rack0slot7.osadl.org (updated Tue Dec 23, 2025 00:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24412959947115,55cyclictest1957723-21Isolated12:10:194
24412929947110,460cyclictest139-21ksoftirqd/1119:57:153
24412559946910,56cyclictest31616-21Isolated12:10:190
24412859945724,28cyclictest0-21swapper/923:20:2215
24412719945623,28cyclictest0-21swapper/522:44:2111
24412719945622,28cyclictest0-21swapper/520:26:2611
24412719945523,27cyclictest3617452-21Timer20:55:4911
24412859945322,27cyclictest0-21swapper/920:49:2315
24412589945220,27cyclictest203150irq/139-enp2s0-rx-023:56:211
24412859945118,28cyclictest3011244-21kthreadcore21:25:2415
24412859945118,28cyclictest3011244-21kthreadcore21:25:2315
24412859944815,27cyclictest0-21swapper/922:05:5615
24412859944715,27cyclictest0-21swapper/920:53:4615
24412859944614,28cyclictest0-21swapper/923:59:2215
2441285994418,28cyclictest0-21swapper/923:01:4715
2441285994408,27cyclictest0-21swapper/923:29:5115
2441285994407,27cyclictest0-21swapper/920:34:5115
2441285994398,27cyclictest0-21swapper/921:13:2115
2441285994384,28cyclictest0-21swapper/921:24:2215
2441285994375,27cyclictest0-21swapper/922:28:3715
2441292994341,28cyclictest85650irq/167-nvme1q423:20:593
24412959943324,404cyclictest0-21swapper/1223:45:234
24412589943124,406cyclictest0-21swapper/123:54:201
2441281994307,423cyclictest0-21swapper/822:03:2114
2441281994307,423cyclictest0-21swapper/822:03:2114
24412699942720,403cyclictest0-21swapper/422:01:4610
24412699942720,403cyclictest0-21swapper/422:01:4610
244129299426425,1cyclictest0-21swapper/1119:40:233
24412999942422,402cyclictest0-21swapper/1319:54:185
24412999942420,404cyclictest0-21swapper/1300:15:595
244129299423422,1cyclictest3001404-21kworker/11:0+i915-unordered21:34:213
24412699942317,406cyclictest0-21swapper/420:23:2210
244130199422422,0cyclictest0-21swapper/1421:53:346
244129299422421,1cyclictest3021956-21kworker/11:1+i915-unordered21:28:563
244129299422421,1cyclictest3021956-21kworker/11:1+i915-unordered21:28:563
24412859942215,403cyclictest0-21swapper/900:23:2215
24412859942215,403cyclictest0-21swapper/900:23:2115
24412959942114,406cyclictest8763-21IPC4
24412859942116,403cyclictest0-21swapper/923:46:3915
244127599421420,0cyclictest29250irq/128-xhci_hcd00:08:3812
244128599420420,0cyclictest0-21swapper/921:53:3515
244127599420419,1cyclictest3743837-21kworker/6:3+pm22:30:3712
244125599419418,1cyclictest3104916-21kworker/0:0+pm21:53:350
24412959941817,400cyclictest0-21swapper/1200:32:464
24412859941814,402cyclictest0-21swapper/921:44:2215
24412929941713,402cyclictest0-21swapper/1123:40:373
24412929941711,405cyclictest0-21swapper/1100:02:583
24412929941711,403cyclictest0-21swapper/1122:41:143
244127599417415,1cyclictest3845671-21kworker/6:0+pm22:10:4212
24412999941612,404cyclictest0-21swapper/1320:50:365
24412859941616,400cyclictest0-21swapper/919:52:3515
24412859941612,401cyclictest0-21swapper/920:41:5915
244125899416416,0cyclictest0-21swapper/121:29:411
244125899416416,0cyclictest0-21swapper/121:29:401
24412959941516,397cyclictest0-21swapper/1222:21:214
24412959941515,400cyclictest0-21swapper/1222:51:374
24412959941515,400cyclictest0-21swapper/1222:51:374
24412959941511,404cyclictest0-21swapper/1222:48:524
2441295994150,414cyclictest0-21swapper/1219:53:394
24412929941514,400cyclictest0-21swapper/1123:06:293
24412859941510,403cyclictest0-21swapper/919:13:2715
244127599415414,1cyclictest3845671-21kworker/6:0+events19:26:3412
2441295994149,404cyclictest0-21swapper/1219:39:454
2441295994148,404cyclictest0-21swapper/1222:55:454
24412859941410,403cyclictest0-21swapper/923:36:4615
2441295994138,404cyclictest0-21swapper/1221:38:464
2441295994128,404cyclictest0-21swapper/1220:21:484
2441271994128,403cyclictest0-21swapper/500:03:1611
244126999412410,1cyclictest0-21swapper/419:26:5510
244126599412409,2cyclictest2072-21snmpd19:40:249
2441258994129,402cyclictest0-21swapper/122:24:211
24412589941210,401cyclictest0-21swapper/100:18:421
2441305994116,405cyclictest0-21swapper/1500:12:337
2441285994114,404cyclictest0-21swapper/900:05:2615
24412659941110,401cyclictest0-21swapper/320:36:599
2441258994114,403cyclictest0-21swapper/120:42:591
244130599410409,0cyclictest0-21swapper/1521:29:407
244130599410409,0cyclictest0-21swapper/1521:29:407
2441301994100,410cyclictest0-21swapper/1423:55:596
2441289994102,407cyclictest0-21swapper/1019:44:242
2441299994093,404cyclictest0-21swapper/1300:13:595
244127599409407,2cyclictest3845671-21kworker/6:0+events20:40:3412
2441265994099,400cyclictest0-21swapper/322:56:469
2441301994080,407cyclictest0-21swapper/1422:41:596
2441292994087,400cyclictest139-21ksoftirqd/1100:22:143
2441292994087,400cyclictest139-21ksoftirqd/1100:22:143
2441289994080,407cyclictest0-21swapper/1020:42:212
244128199408408,0cyclictest0-21swapper/822:35:3414
244127599408405,2cyclictest3186643-21kworker/6:1+events23:19:2312
244126199408405,2cyclictest2589026-21kworker/2:2+events19:44:258
244125599408406,2cyclictest3136257-21kworker/0:1+events22:03:220
244125599408406,2cyclictest3136257-21kworker/0:1+events22:03:210
244127599407405,2cyclictest3743837-21kworker/6:3+events21:09:3912
244127599407405,2cyclictest3516222-21kworker/6:2+events00:29:4512
2441271994079,398cyclictest0-21swapper/520:43:4111
2441258994070,402cyclictest0-21swapper/121:15:121
2441289994061,405cyclictest0-21swapper/1022:07:342
244128199406402,3cyclictest2072-21snmpd21:29:4114
244128199406402,3cyclictest2072-21snmpd21:29:4014
244127999406403,2cyclictest3620551-21kworker/7:2+events00:12:3413
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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