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2025-11-22 - 04:23
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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 rack3slot6.osadl.org (updated Sat Nov 22, 2025 00:45:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1528221480,3sleep0171rcuc/023:45:020
1346829918,31sleep10-21swapper/119:08:481
1357428919,25sleep00-21swapper/019:09:250
203752860,5chrt0-21swapper/023:59:550
203752860,5chrt0-21swapper/023:59:540
13786997849,19cyclictest26-21ksoftirqd/120:10:121
13781997730,22cyclictest14-21ksoftirqd/019:55:110
13786997648,18cyclictest26-21ksoftirqd/121:15:171
13786997648,18cyclictest26-21ksoftirqd/119:50:121
1378199768,52cyclictest0-21swapper/021:25:140
13786997549,16cyclictest26-21ksoftirqd/119:25:161
13786997546,19cyclictest26-21ksoftirqd/120:55:161
13786997546,17cyclictest26-21ksoftirqd/121:05:121
13786997545,17cyclictest0-21swapper/100:25:101
13786997446,18cyclictest26-21ksoftirqd/100:10:151
13786997425,13cyclictest26-21ksoftirqd/122:25:221
13781997434,34cyclictest14-21ksoftirqd/019:40:370
13786997252,11cyclictest26-21ksoftirqd/119:30:151
13786997042,18cyclictest0-21swapper/121:45:101
13786997042,16cyclictest0-21swapper/123:35:131
13786997041,18cyclictest0-21swapper/122:35:161
13786997040,18cyclictest0-21swapper/122:40:141
13786997039,18cyclictest0-21swapper/119:45:141
1378199707,47cyclictest0-21swapper/022:15:130
13781997035,30cyclictest14-21ksoftirqd/022:30:240
13786996942,14cyclictest0-21swapper/122:20:251
13786996942,14cyclictest0-21swapper/122:20:241
13786996940,17cyclictest0-21swapper/121:50:131
1378199697,46cyclictest0-21swapper/000:20:120
13786996817,13cyclictest26-21ksoftirqd/100:25:011
13786996816,15cyclictest26-21ksoftirqd/120:20:001
1378199689,7cyclictest151rcu_preempt22:45:250
1378199689,7cyclictest151rcu_preempt22:45:240
13781996832,21cyclictest14-21ksoftirqd/019:25:180
13786996739,17cyclictest0-21swapper/122:15:131
13786996735,19cyclictest0-21swapper/123:30:251
13786996735,19cyclictest0-21swapper/100:30:141
13786996710,14cyclictest26-21ksoftirqd/123:45:001
13781996738,22cyclictest14-21ksoftirqd/021:40:180
13786996640,17cyclictest0-21swapper/123:55:101
13786996640,17cyclictest0-21swapper/123:55:091
13786996638,17cyclictest0-21swapper/123:15:141
13786996637,17cyclictest0-21swapper/123:10:171
13786996616,15cyclictest26-21ksoftirqd/121:30:001
13781996636,23cyclictest14-21ksoftirqd/019:35:180
13781996618,19cyclictest14-21ksoftirqd/022:35:240
13786996536,18cyclictest0-21swapper/120:35:151
13786996536,16cyclictest0-21swapper/120:50:101
13781996531,28cyclictest14-21ksoftirqd/023:12:010
13786996438,17cyclictest0-21swapper/123:25:141
13786996435,18cyclictest0-21swapper/122:50:161
13786996434,18cyclictest0-21swapper/119:15:151
13786996434,18cyclictest0-21swapper/119:15:141
13781996435,23cyclictest14-21ksoftirqd/000:08:330
13781996431,9cyclictest14-21ksoftirqd/022:40:170
13781996431,28cyclictest14-21ksoftirqd/022:21:250
13781996431,28cyclictest14-21ksoftirqd/022:21:240
13781996429,29cyclictest14-21ksoftirqd/021:05:370
13781996428,29cyclictest14-21ksoftirqd/021:51:440
13781996428,21cyclictest5963-21sshd20:16:460
13781996427,31cyclictest14-21ksoftirqd/023:50:210
13786996344,11cyclictest0-21swapper/119:20:281
13786996335,18cyclictest0-21swapper/119:40:191
13786996316,40cyclictest26-21ksoftirqd/100:00:191
13786996312,8cyclictest151rcu_preempt21:40:011
13781996343,13cyclictest504-21snmpd21:57:350
13781996332,26cyclictest14-21ksoftirqd/020:55:170
13781996331,28cyclictest14-21ksoftirqd/000:25:160
13781996322,21cyclictest14-21ksoftirqd/023:15:120
1378699626,16cyclictest26-21ksoftirqd/120:20:051
13786996231,18cyclictest0-21swapper/121:55:161
1378199627,15cyclictest151rcu_preempt19:25:010
1378199626,15cyclictest601-21apt-get21:35:140
13781996234,22cyclictest14-21ksoftirqd/021:15:320
13781996233,23cyclictest14-21ksoftirqd/020:10:010
13781996230,26cyclictest26724-21telnet19:45:160
13781996219,12cyclictest14-21ksoftirqd/022:05:160
1378699613,10cyclictest23972-21munin-run00:10:001
13786996130,19cyclictest0-21swapper/121:30:161
13786996130,18cyclictest0-21swapper/100:35:161
13781996130,26cyclictest31218-21telnet23:00:190
13781996127,9cyclictest14-21ksoftirqd/022:56:380
13786996031,18cyclictest0-21swapper/123:50:111
1378699602,17cyclictest24357-21hostname21:10:171
13786996020,35cyclictest26-21ksoftirqd/122:05:251
13786996015,39cyclictest26-21ksoftirqd/120:40:301
13786996015,39cyclictest26-21ksoftirqd/120:40:301
13781996035,9cyclictest14-21ksoftirqd/023:20:020
13781996035,9cyclictest14-21ksoftirqd/022:30:010
13781996034,19cyclictest14-21ksoftirqd/000:10:180
13781996028,8cyclictest14-21ksoftirqd/019:50:170
13781996015,40cyclictest151rcu_preempt20:10:130
1378699599,43cyclictest0-21swapper/120:30:251
1378699596,46cyclictest0-21swapper/100:15:201
13786995910,8cyclictest151rcu_preempt21:05:011
13781995937,17cyclictest13769-21cyclictest21:30:340
13781995937,16cyclictest14-21ksoftirqd/020:55:010
13781995935,9cyclictest14-21ksoftirqd/023:05:180
1378199593,16cyclictest9467-21/usr/sbin/munin22:00:170
13781995930,24cyclictest14-21ksoftirqd/020:30:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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