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2026-08-07 - 10:25
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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 highest latencies:
System rack1slot8.osadl.org (updated Fri Aug 07, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25049917951752,36cyclictest8012-21cat19:25:020
24582882859,16sleep10-21swapper/119:09:551
250599803729,40cyclictest0-21swapper/119:10:041
250499795707,82cyclictest0-21swapper/019:10:040
20912563541,15sleep00-21swapper/019:06:340
250599416370,31cyclictest0-21swapper/119:25:021
2504991035,92cyclictest0-21swapper/022:57:590
228699940,4rtkit-daemon2285-21rtkit-daemon19:31:100
228699870,4rtkit-daemon2285-21rtkit-daemon21:15:560
250499784,68cyclictest0-21swapper/023:48:590
250499715,48cyclictest0-21swapper/023:33:590
228699670,5rtkit-daemon2285-21rtkit-daemon23:40:250
250499655,40cyclictest0-21swapper/019:43:000
250499645,52cyclictest0-21swapper/021:48:250
2504996422,35cyclictest0-21swapper/000:28:440
250499605,43cyclictest0-21swapper/022:19:590
250499605,36cyclictest0-21swapper/020:45:590
228699600,5rtkit-daemon2285-21rtkit-daemon21:27:310
228699600,4rtkit-daemon2285-21rtkit-daemon22:02:330
2504995935,18cyclictest0-21swapper/020:33:020
228699590,4rtkit-daemon2285-21rtkit-daemon00:09:110
250499585,47cyclictest0-21swapper/020:25:010
2504995822,29cyclictest0-21swapper/021:31:310
201832586,15sleep00-21swapper/021:20:320
250499568,42cyclictest0-21swapper/023:20:010
250499566,44cyclictest0-21swapper/000:10:150
2504995631,19cyclictest0-21swapper/000:01:230
2504995621,28cyclictest0-21swapper/000:16:370
228699560,5rtkit-daemon2285-21rtkit-daemon22:34:340
2504995525,16cyclictest0-21swapper/023:20:010
228699550,5rtkit-daemon2285-21rtkit-daemon22:43:040
228699550,14rtkit-daemon0-21swapper/021:43:470
154442554,12sleep00-21swapper/022:10:470
29762545,12sleep00-21swapper/022:48:580
250599546,41cyclictest0-21swapper/122:30:181
250499545,43cyclictest0-21swapper/021:36:390
250499545,42cyclictest0-21swapper/020:10:160
243982544,12sleep00-21swapper/023:28:060
228699540,4rtkit-daemon2285-21rtkit-daemon20:18:400
25912534,12sleep00-21swapper/020:39:110
2505995315,32cyclictest0-21swapper/123:01:411
250499534,42cyclictest0-21swapper/023:12:170
250499534,42cyclictest0-21swapper/023:05:060
250499534,42cyclictest0-21swapper/000:20:520
2504995322,26cyclictest0-21swapper/019:25:280
2504995315,22cyclictest0-21swapper/023:50:330
2504995310,37cyclictest0-21swapper/023:39:210
228699530,5rtkit-daemon2285-21rtkit-daemon21:05:010
228699530,4rtkit-daemon2285-21rtkit-daemon23:58:210
228699530,4rtkit-daemon2285-21rtkit-daemon00:39:170
210062534,11sleep00-21swapper/022:21:200
204112534,11sleep00-21swapper/019:58:550
250499526,40cyclictest0-21swapper/021:53:510
250499525,39cyclictest0-21swapper/020:55:170
250499525,39cyclictest0-21swapper/020:00:170
250499525,36cyclictest0-21swapper/020:42:000
250499524,41cyclictest0-21swapper/023:03:410
152382524,12sleep00-21swapper/021:12:020
79892514,12sleep00-21swapper/020:54:020
276052514,12sleep00-21swapper/000:34:090
2505995118,28cyclictest0-21swapper/121:23:121
2505995117,28cyclictest1568-21runrttasks22:42:171
250499515,40cyclictest0-21swapper/022:53:360
250499515,40cyclictest0-21swapper/021:55:090
250499514,41cyclictest0-21swapper/022:06:490
2504995128,16cyclictest0-21swapper/022:26:370
2504995126,15cyclictest0-21swapper/020:28:070
2505995028,17cyclictest0-21swapper/121:10:281
2505995016,27cyclictest11938-21ssh23:05:151
2505995015,28cyclictest5811-21idleruntime-cro21:55:011
250499506,37cyclictest0-21swapper/019:15:190
2504995015,29cyclictest41ktimersoftd/019:50:160
237742504,12sleep00-21swapper/020:06:230
118142504,12sleep00-21swapper/019:35:140
2505994928,16cyclictest0-21swapper/123:40:251
2505994922,18cyclictest6729-21ssh23:55:161
2505994919,25cyclictest0-21swapper/119:38:131
2505994918,26cyclictest0-21swapper/123:54:141
2505994916,26cyclictest9235-21irqstats22:00:181
228699490,5rtkit-daemon2285-21rtkit-daemon19:45:200
228699490,4rtkit-daemon2285-21rtkit-daemon22:36:390
250599488,32cyclictest0-21swapper/121:17:401
250599484,38cyclictest0-21swapper/123:49:001
250599484,38cyclictest0-21swapper/123:34:551
2505994828,13cyclictest19694-21ssh23:20:041
2505994827,17cyclictest0-21swapper/120:35:251
2505994825,18cyclictest0-21swapper/119:45:121
2505994823,19cyclictest0-21swapper/123:10:251
2505994819,24cyclictest0-21swapper/119:30:261
2505994818,25cyclictest0-21swapper/119:55:171
2505994818,22cyclictest22784-21ssh22:25:181
2505994816,24cyclictest11719-21munin-run21:05:011
2505994815,26cyclictest0-21swapper/100:30:501
2505994815,25cyclictest463-21munin-node21:45:131
250499486,35cyclictest0-21swapper/021:05:250
250599474,37cyclictest0-21swapper/121:27:081
2505994728,13cyclictest28597-21ssh00:35:181
2505994728,13cyclictest23881-21sh23:26:131
2505994718,22cyclictest13233-21sshd22:07:311
2505994713,27cyclictest23020-21munin-node20:05:191
2505994711,30cyclictest0-21swapper/100:17:351
250599469,30cyclictest0-21swapper/120:51:131
250599469,30cyclictest0-21swapper/120:31:091
250599467,33cyclictest0-21swapper/120:25:121
250599466,34cyclictest0-21swapper/119:40:221
250599466,17cyclictest0-21swapper/100:25:151
250599465,34cyclictest0-21swapper/100:02:481
2505994630,11cyclictest13005-21grep00:05:261
2505994623,16cyclictest25232-21iostat21:30:181
2505994622,18cyclictest0-21swapper/121:55:171
2505994622,18cyclictest0-21swapper/121:38:431
2505994621,18cyclictest0-21swapper/100:11:301
2505994614,25cyclictest18207-21runrttasks22:15:591
221982460,6sleep10-21swapper/120:03:361
250599459,30cyclictest0-21swapper/122:51:071
250599459,30cyclictest0-21swapper/121:41:381
250599459,29cyclictest0-21swapper/119:15:221
250599458,31cyclictest0-21swapper/122:55:181
250599458,31cyclictest0-21swapper/120:15:201
250599456,32cyclictest0-21swapper/122:20:151
2505994523,17cyclictest18691-21sh23:16:591
2505994522,17cyclictest0-21swapper/100:23:141
2505994521,17cyclictest0-21swapper/123:35:401
2505994519,21cyclictest732-21basename22:45:131
2505994519,20cyclictest0-21swapper/122:10:151
2505994515,23cyclictest17313-21df19:50:151
250599449,28cyclictest0-21swapper/122:35:041
250599447,31cyclictest0-21swapper/120:11:411
250599446,32cyclictest0-21swapper/119:25:261
250599446,20cyclictest0-21swapper/120:55:161
250599445,34cyclictest0-21swapper/121:05:201
2505994424,15cyclictest3045-21cpuspeed20:40:121
2505994414,25cyclictest0-21swapper/120:46:111
2505994411,26cyclictest28746-21processes20:20:231
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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