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2023-03-22 - 04:47

x86 Intel Core i7-2600K @3400 MHz, Linux 5.9.0-rc2-rt1 (Profile)

Latency plot of system in rack #4, slot #6
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 -h200 -q
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 rack4slot6.osadl.org (updated Wed Mar 22, 2023 00:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30590521280,114pltrace0-21swapper/719:05:157
947521180,115pltrace0-21swapper/119:10:011
30590521090,99pltrace0-21swapper/519:05:185
30590521050,101pltrace0-21swapper/219:05:222
30590521020,94pltrace0-21swapper/619:05:446
2440052860,1pltrace0-21swapper/319:46:253
1733452800,0pltrace0-21swapper/720:31:257
1878152790,0pltrace0-21swapper/319:36:263
86427761,12sleep00-21swapper/019:05:330
1316152770,0pltrace13166-21pltrace-run19:26:254
3059052740,63pltrace0-21swapper/319:05:163
311602700,0sleep10-21swapper/122:42:441
1278252700,0pltrace12786-21pltrace-run22:56:267
72422690,4sleep1143699cyclictest19:15:271
301302680,0sleep40-21swapper/422:08:504
13742630,0sleep2241rcuc/222:45:182
105326341,16sleep40-21swapper/419:07:374
388852300,0pltrace3892-21pltrace-run19:11:251
145899232,20cyclictest0-21swapper/522:20:285
146599220,21cyclictest0-21swapper/621:48:036
1458992218,3cyclictest0-21swapper/500:28:235
939552210,0pltrace9399-21pltrace-run23:26:261
939552210,0pltrace9399-21pltrace-run23:26:261
179392210,1sleep60-21swapper/621:21:576
1396052190,0pltrace0-21swapper/423:36:264
41622180,0sleep70-21swapper/719:15:017
1458991812,5cyclictest0-21swapper/523:30:315
145899181,12cyclictest0-21swapper/519:41:205
1316152180,1pltrace0-21swapper/519:29:225
81622170,2sleep0101rcuc/021:11:430
3051752170,2pltrace1135-21snmpd22:41:263
147199171,4cyclictest0-21swapper/720:50:107
1458991711,4cyclictest0-21swapper/522:18:265
1458991711,3cyclictest0-21swapper/521:27:085
1458991711,3cyclictest0-21swapper/520:30:395
145899170,15cyclictest0-21swapper/523:25:505
145899170,15cyclictest0-21swapper/523:25:495
145899170,12cyclictest0-21swapper/523:56:175
1448991711,3cyclictest0-21swapper/323:20:303
1448991711,3cyclictest0-21swapper/323:20:303
1448991711,3cyclictest0-21swapper/322:07:303
1441991712,3cyclictest0-21swapper/219:19:102
1441991711,3cyclictest0-21swapper/220:14:462
1436991711,4cyclictest0-21swapper/123:42:521
143699171,2cyclictest0-21swapper/100:35:221
1429991712,2cyclictest0-21swapper/000:39:060
1429991711,3cyclictest0-21swapper/019:50:300
1255852170,2pltrace111rcu_preempt00:07:321
801852160,2pltrace43-21ksoftirqd/521:15:155
2892352160,0pltrace28927-21tail22:06:261
182952160,1pltrace43-21ksoftirqd/521:02:355
1767152160,1pltrace43-21ksoftirqd/523:05:165
1471991611,4cyclictest0-21swapper/723:57:107
1471991611,4cyclictest0-21swapper/723:36:427
1471991611,3cyclictest0-21swapper/723:13:477
1471991611,3cyclictest0-21swapper/722:41:197
1471991611,2cyclictest0-21swapper/721:10:117
1471991610,3cyclictest0-21swapper/719:57:177
147199160,8cyclictest0-21swapper/720:41:267
146599168,7cyclictest0-21swapper/622:15:406
1465991611,3cyclictest0-21swapper/620:18:346
1465991611,3cyclictest0-21swapper/619:43:446
146599161,4cyclictest0-21swapper/622:40:016
146599160,4cyclictest0-21swapper/623:07:156
1458991612,3cyclictest0-21swapper/520:40:215
1458991611,2cyclictest0-21swapper/520:08:385
145899161,1cyclictest0-21swapper/519:51:285
145899160,4cyclictest0-21swapper/522:48:295
145899160,1cyclictest0-21swapper/523:02:405
1453991613,2cyclictest0-21swapper/422:15:494
1453991610,5cyclictest0-21swapper/420:55:054
1453991610,3cyclictest0-21swapper/421:53:524
1453991610,3cyclictest0-21swapper/420:51:164
145399160,13cyclictest0-21swapper/422:56:174
1448991611,3cyclictest0-21swapper/300:08:463
1448991610,4cyclictest0-21swapper/322:51:573
1448991610,3cyclictest0-21swapper/320:37:573
144899160,4cyclictest0-21swapper/322:12:153
144899160,15cyclictest3548-21ls19:10:233
1441991611,3cyclictest0-21swapper/220:15:032
1441991611,3cyclictest0-21swapper/219:51:412
1441991611,2cyclictest0-21swapper/223:44:402
1441991610,3cyclictest0-21swapper/221:50:332
144199160,4cyclictest0-21swapper/219:11:042
1440552160,2pltrace43-21ksoftirqd/521:54:415
1436991611,2cyclictest0-21swapper/122:24:551
1436991611,2cyclictest0-21swapper/100:16:071
143699161,8cyclictest0-21swapper/121:45:441
142999161,7cyclictest0-21swapper/022:43:520
142999160,1cyclictest0-21swapper/023:50:270
1255852160,2pltrace111rcu_preempt00:07:300
801852150,7pltrace10158-21ssh21:15:100
468552150,9pltrace0-21swapper/021:42:040
2252252150,9pltrace0-21swapper/221:28:572
1767152150,0pltrace0-21swapper/023:05:080
1596652150,10pltrace17689-21ssh22:29:550
147199159,5cyclictest0-21swapper/719:25:207
1471991511,3cyclictest0-21swapper/719:23:527
1471991510,4cyclictest0-21swapper/700:31:417
1471991510,3cyclictest0-21swapper/723:54:557
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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