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2023-05-28 - 02:00

x86 Intel Xeon E3-1270 v2 @3500 MHz, Linux 4.19.25-rt16 (Profile)

Latency plot of system in rack #3, slot #0
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
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 rack3slot0.osadl.org (updated Sun May 28, 2023 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
236752690,0sleep10-21swapper/123:39:311
325132510,0sleep10-21swapper/123:53:411
325132510,0sleep10-21swapper/123:53:411
95022500,0sleep30-21swapper/322:38:473
95022500,0sleep30-21swapper/322:38:473
3051524926,8sleep10-21swapper/119:04:411
29532490,0sleep00-21swapper/021:18:440
124052480,0sleep30-21swapper/300:20:503
124052480,0sleep30-21swapper/300:20:503
3072924231,8sleep40-21swapper/419:07:334
289242420,0sleep30-21swapper/323:18:593
289242420,0sleep30-21swapper/323:18:593
256242420,0sleep40-21swapper/422:55:544
133622420,0sleep7721ktimersoftd/721:56:077
133622420,0sleep7721ktimersoftd/721:56:077
31832410,0sleep70-21swapper/719:13:517
3071024127,9sleep70-21swapper/719:07:207
3068324028,8sleep00-21swapper/019:06:560
3061924028,8sleep20-21swapper/219:06:022
3051724027,9sleep30-21swapper/319:04:433
2829924028,8sleep50-21swapper/519:03:175
3045323927,8sleep60-21swapper/619:03:506
160742370,2sleep23091799cyclictest21:12:452
213582150,0sleep60-21swapper/622:20:566
213582150,0sleep60-21swapper/622:20:566
3092799130,13cyclictest29645-21kworker/5:223:27:455
3092799130,13cyclictest29645-21kworker/5:223:27:455
3092999121,10cyclictest0-21swapper/722:07:487
3092799128,1cyclictest57-21ksoftirqd/521:56:235
3092799128,1cyclictest57-21ksoftirqd/521:56:235
3092799127,3cyclictest57-21ksoftirqd/500:16:045
30927991211,1cyclictest57-21ksoftirqd/521:33:385
30927991210,1cyclictest57-21ksoftirqd/500:32:475
3092799120,1cyclictest57-21ksoftirqd/523:13:495
3091599120,2cyclictest22600-21grep00:13:210
160262120,0sleep00-21swapper/000:22:230
160262120,0sleep00-21swapper/000:22:230
147872120,0sleep30-21swapper/323:25:323
147872120,0sleep30-21swapper/323:25:323
3092899119,1cyclictest12345-21tune2fs21:33:296
3092899110,10cyclictest0-21swapper/622:45:236
3092899110,10cyclictest0-21swapper/622:45:236
3092799119,2cyclictest57-21ksoftirqd/523:04:525
3092799119,2cyclictest57-21ksoftirqd/523:04:525
3092799119,1cyclictest57-21ksoftirqd/523:39:075
3092799119,1cyclictest57-21ksoftirqd/523:18:355
3092799119,1cyclictest57-21ksoftirqd/523:18:355
3092799119,1cyclictest57-21ksoftirqd/522:24:255
3092799119,1cyclictest57-21ksoftirqd/522:24:255
3092799119,1cyclictest57-21ksoftirqd/521:24:565
3092799119,1cyclictest57-21ksoftirqd/521:24:565
3092799119,1cyclictest57-21ksoftirqd/500:03:175
30927991110,1cyclictest57-21ksoftirqd/521:38:145
3092799111,1cyclictest131rcu_sched23:43:425
3092799110,1cyclictest131rcu_sched22:15:355
3092799110,1cyclictest131rcu_sched22:15:355
3092499110,10cyclictest0-21swapper/423:46:384
3092499110,10cyclictest0-21swapper/421:28:314
3092499110,10cyclictest0-21swapper/421:28:314
3091799119,1cyclictest0-21swapper/221:32:482
3091799119,1cyclictest0-21swapper/221:32:482
3091699110,10cyclictest0-21swapper/100:00:441
3091699110,1cyclictest0-21swapper/122:58:291
207152110,0sleep10-21swapper/121:47:441
207152110,0sleep10-21swapper/121:47:441
140722110,0sleep50-21swapper/500:21:325
140722110,0sleep50-21swapper/500:21:325
3092999109,1cyclictest9698-21kworker/7:123:19:287
3092999109,1cyclictest9698-21kworker/7:123:19:287
3092999109,1cyclictest9698-21kworker/7:123:13:407
3092999109,1cyclictest9061-21kworker/7:120:33:147
3092999109,1cyclictest9061-21kworker/7:120:28:147
3092999109,1cyclictest7990-21kworker/7:200:28:527
3092999109,1cyclictest7990-21kworker/7:200:26:327
3092999109,1cyclictest7990-21kworker/7:200:18:587
3092999109,1cyclictest7990-21kworker/7:200:18:587
3092999109,1cyclictest6160-21kworker/7:220:19:447
3092999109,1cyclictest5440-21kworker/7:322:54:107
3092999109,1cyclictest5440-21kworker/7:322:43:147
3092999109,1cyclictest5440-21kworker/7:322:43:147
3092999109,1cyclictest5440-21kworker/7:322:39:007
3092999109,1cyclictest5440-21kworker/7:322:39:007
3092999109,1cyclictest4105-21kworker/7:322:18:587
3092999109,1cyclictest4105-21kworker/7:322:18:587
3092999109,1cyclictest4105-21kworker/7:322:09:367
3092999109,1cyclictest3309-21kworker/7:121:48:247
3092999109,1cyclictest3309-21kworker/7:121:48:247
3092999109,1cyclictest3309-21kworker/7:121:44:447
3092999109,1cyclictest3309-21kworker/7:121:44:447
3092999109,1cyclictest30661-21kworker/7:119:18:277
3092999109,1cyclictest30661-21kworker/7:119:08:337
3092999109,1cyclictest30329-21kworker/7:023:23:247
3092999109,1cyclictest30329-21kworker/7:023:23:247
3092999109,1cyclictest30309-21kworker/7:000:34:267
3092999109,1cyclictest26899-21kworker/7:020:13:207
3092999109,1cyclictest26899-21kworker/7:020:08:327
3092999109,1cyclictest26899-21kworker/7:019:55:567
3092999109,1cyclictest26005-21kworker/7:021:13:387
3092999109,1cyclictest26005-21kworker/7:021:13:387
3092999109,1cyclictest26005-21kworker/7:021:08:207
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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