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2025-11-06 - 09:24
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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 Thu Nov 06, 2025 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2686099827751,51cyclictest0-21swapper/019:12:460
2686199785707,47cyclictest0-21swapper/119:12:461
265552649628,14sleep10-21swapper/119:07:211
258732416392,16sleep00-21swapper/019:05:190
26861999313,57cyclictest0-21swapper/119:59:011
26861999222,44cyclictest0-21swapper/122:42:591
253342920,4chrt25336-21processes23:35:271
26860999066,19cyclictest0-21swapper/020:36:590
26861998256,11cyclictest32175-21ssh23:47:591
26861998224,39cyclictest0-21swapper/122:38:591
26861998221,46cyclictest0-21swapper/100:19:581
2686099804,69cyclictest16382-21ssh23:20:160
2686199795,57cyclictest0-21swapper/123:26:591
26860997814,58cyclictest78950irq/46-eth0-tx-00:27:430
26860997810,62cyclictest29333-21grep22:45:310
2686099772,7cyclictest16994-21ssh21:29:110
26860997618,44cyclictest78950irq/46-eth0-tx-22:01:580
2686099757,50cyclictest0-21swapper/000:15:210
2686099756,62cyclictest0-21swapper/023:33:000
2686099756,61cyclictest0-21swapper/022:51:060
2686099754,8cyclictest7168-21ssh21:11:200
2686099754,44cyclictest10925-21ssh23:10:240
2686099752,7cyclictest1002-21gltestperf23:50:190
26861997422,30cyclictest0-21swapper/120:47:001
26861997411,44cyclictest0-21swapper/120:13:001
2686099742,7cyclictest25454-21ssh21:43:230
2686099742,66cyclictest5578-21diskmemload00:33:380
26861997319,29cyclictest0-21swapper/121:10:591
2686099734,8cyclictest13299-21ssh21:21:580
216899730,3rtkit-daemon2167-21rtkit-daemon23:59:271
2686099725,50cyclictest0-21swapper/022:31:060
2686099724,7cyclictest31351-21ssh21:53:590
26860997222,41cyclictest78950irq/46-eth0-tx-21:45:190
26861997113,34cyclictest0-21swapper/122:00:591
2686099713,9cyclictest4928-21ssh23:00:180
26860997111,53cyclictest0-21swapper/023:45:240
2686099706,55cyclictest0-21swapper/023:35:240
2686099705,59cyclictest0-21swapper/022:40:230
2686099705,58cyclictest0-21swapper/022:10:430
2686099703,8cyclictest3484-21ssh22:57:410
2686099703,8cyclictest32451-21aten_r1power_en19:25:130
2686099703,8cyclictest32012-21runrttasks20:50:470
2686099703,45cyclictest26950-21munin-node00:35:160
2686099702,6cyclictest19359-21latency_hist22:30:010
26860997018,45cyclictest78950irq/46-eth0-tx-23:41:080
26860997018,45cyclictest78950irq/46-eth0-tx-21:58:460
2686199699,53cyclictest0-21swapper/120:04:591
2686099696,55cyclictest0-21swapper/021:05:200
2686099695,58cyclictest0-21swapper/022:05:230
2686099695,56cyclictest0-21swapper/023:25:220
2686099694,41cyclictest11360-21ssh22:15:180
2686099693,7cyclictest5578-21diskmemload22:39:590
2686099693,6cyclictest14660-21proc_pri22:20:200
2686099693,59cyclictest11227-21pgrep00:07:380
2686099693,58cyclictest742-21lldpad21:37:260
2686099693,38cyclictest18902-21ssh00:20:280
2686099693,38cyclictest18902-21ssh00:20:280
2686099692,9cyclictest10799-21taskset19:55:010
2686099692,7cyclictest8924-21entropy21:15:170
2686099692,53cyclictest13715-21ssh00:11:240
26860996919,43cyclictest78950irq/46-eth0-tx-23:57:120
26860996914,38cyclictest13996-21ssh23:15:260
2686099686,55cyclictest0-21swapper/020:20:110
2686099686,54cyclictest0-21swapper/019:45:270
2686099686,54cyclictest0-21swapper/019:45:010
2686099683,9cyclictest22218-21wc20:25:190
2686099683,10cyclictest7033-21munin-node00:00:190
2686099682,6cyclictest16316-21latency_hist20:10:020
216899680,4rtkit-daemon2167-21rtkit-daemon23:05:560
26861996716,31cyclictest0-21swapper/119:23:591
2686099676,52cyclictest0-21swapper/020:45:180
2686099672,6cyclictest18409-21df20:15:140
26860996713,36cyclictest17765-21ssh21:30:150
26861996616,29cyclictest0-21swapper/122:28:591
26861996613,33cyclictest0-21swapper/123:16:591
26861996612,32cyclictest0-21swapper/120:28:001
26861996611,39cyclictest0-21swapper/123:04:001
2686099662,8cyclictest3768-21idleruntime-cro21:05:010
2686099662,6cyclictest2103-21cpu19:30:130
26861996514,28cyclictest0-21swapper/120:08:001
26861996512,35cyclictest0-21swapper/120:17:011
26861996512,34cyclictest0-21swapper/100:06:591
26861996512,32cyclictest0-21swapper/122:14:001
2686099654,54cyclictest3846-21telnet19:35:120
26861996414,31cyclictest0-21swapper/122:18:591
26861996410,33cyclictest0-21swapper/123:20:591
2686099643,9cyclictest14410-21idleruntime-cro20:05:010
2686099642,8cyclictest25227-21idleruntime-cro20:35:010
26861996315,29cyclictest0-21swapper/100:12:591
2686099636,51cyclictest0-21swapper/020:55:190
2686099636,50cyclictest0-21swapper/019:15:250
2686099632,6cyclictest28831-21latency_hist20:45:010
26861996216,29cyclictest0-21swapper/119:31:591
26861996212,34cyclictest0-21swapper/121:07:001
2686099622,6cyclictest1427-21runrttasks19:58:400
189992620,3sleep119003-21ssh21:31:221
26861996114,31cyclictest0-21swapper/121:39:591
26861996113,30cyclictest0-21swapper/119:41:001
26861996113,30cyclictest0-21swapper/100:04:001
26861996113,29cyclictest0-21swapper/121:01:001
2686099616,48cyclictest0-21swapper/019:20:170
2686099612,6cyclictest18007-21latency_hist20:15:010
26861996014,29cyclictest0-21swapper/122:46:591
26861996013,29cyclictest0-21swapper/123:41:001
26861995917,27cyclictest0-21swapper/121:23:001
26861995913,28cyclictest0-21swapper/119:26:591
2686199585,36cyclictest0-21swapper/100:37:001
26861995813,29cyclictest0-21swapper/122:33:001
26861995812,28cyclictest0-21swapper/122:51:001
26861995714,29cyclictest0-21swapper/100:32:591
26861995713,30cyclictest0-21swapper/100:25:591
26861995712,28cyclictest0-21swapper/121:27:591
26861995712,28cyclictest0-21swapper/120:30:591
26861995617,29cyclictest0-21swapper/119:16:591
26861995614,29cyclictest0-21swapper/123:10:591
26861995515,29cyclictest0-21swapper/120:53:001
26861995514,31cyclictest0-21swapper/122:25:001
26861995513,28cyclictest0-21swapper/120:20:591
26861995416,26cyclictest0-21swapper/119:37:011
26861995413,30cyclictest0-21swapper/120:35:591
26861995412,28cyclictest0-21swapper/119:46:001
26861995412,26cyclictest0-21swapper/121:40:591
26861995411,29cyclictest0-21swapper/121:16:001
26861995411,28cyclictest0-21swapper/122:07:001
26861995314,28cyclictest0-21swapper/121:50:001
26861995312,27cyclictest0-21swapper/123:32:001
26861995216,30cyclictest0-21swapper/100:23:421
26861995216,30cyclictest0-21swapper/100:23:421
2686199519,29cyclictest0-21swapper/123:09:591
26861995111,27cyclictest0-21swapper/121:54:591
2686199509,32cyclictest0-21swapper/122:58:591
26861995015,24cyclictest0-21swapper/121:55:591
26861995012,27cyclictest0-21swapper/120:41:001
2686199495,37cyclictest0-21swapper/123:53:071
26861994912,26cyclictest0-21swapper/121:00:001
26861994712,27cyclictest0-21swapper/119:50:241
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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