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2026-03-24 - 09:35
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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
Characteristics of the 100 highest latencies:
System rackcslot4.osadl.org (updated Tue Mar 24, 2026 00:44:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
37326002269226,28sleep10-21swapper/119:05:341
37312542269188,27sleep00-21swapper/019:05:050
39207472520,3sleep0161rcuc/000:24:100
38146592510,3sleep03814162-21/usr/sbin/munin21:55:170
179699500,4rtkit-daemon1795-21rtkit-daemon20:23:211
179699490,4rtkit-daemon1795-21rtkit-daemon23:21:240
179699490,4rtkit-daemon1795-21rtkit-daemon20:02:061
179699460,3rtkit-daemon1795-21rtkit-daemon22:17:080
37934782440,2chrt3793479-21sh21:25:231
3733138994117,4cyclictest13-21ksoftirqd/023:35:000
179699410,5rtkit-daemon3879318-21apt-get23:25:121
37998802400,1sleep00-21swapper/021:35:020
37377832400,3sleep13737977-21df19:20:151
3733138994011,4cyclictest13-21ksoftirqd/023:35:220
179699400,3rtkit-daemon0-21swapper/100:20:251
179699380,3rtkit-daemon0-21swapper/120:31:521
3733138993710,4cyclictest13-21ksoftirqd/019:55:000
179699370,3rtkit-daemon0-21swapper/019:16:120
179699360,4rtkit-daemon1795-21rtkit-daemon00:36:470
179699360,3rtkit-daemon0-21swapper/121:21:491
179699360,3rtkit-daemon0-21swapper/120:13:001
179699360,3rtkit-daemon0-21swapper/119:47:540
179699360,3rtkit-daemon0-21swapper/022:37:190
179699360,11rtkit-daemon1350ksoftirqd/022:14:531
3733138993519,5cyclictest13-21ksoftirqd/021:30:000
179699350,4rtkit-daemon1795-21rtkit-daemon23:26:490
179699350,4rtkit-daemon1795-21rtkit-daemon20:45:461
179699350,3rtkit-daemon0-21swapper/120:41:571
179699350,3rtkit-daemon0-21swapper/120:24:110
179699350,3rtkit-daemon0-21swapper/020:55:190
179699350,3rtkit-daemon0-21swapper/019:20:070
373313899349,7cyclictest13-21ksoftirqd/020:10:200
3733138993419,4cyclictest13-21ksoftirqd/022:10:000
3733138993416,4cyclictest13-21ksoftirqd/019:35:010
3733138993416,3cyclictest13-21ksoftirqd/019:15:010
3733138993413,3cyclictest13-21ksoftirqd/020:15:190
3733138993412,4cyclictest13-21ksoftirqd/021:18:260
3733138993410,4cyclictest13-21ksoftirqd/023:50:250
179699340,4rtkit-daemon1795-21rtkit-daemon23:10:020
179699340,4rtkit-daemon1795-21rtkit-daemon22:43:050
179699340,4rtkit-daemon1795-21rtkit-daemon22:43:050
179699340,3rtkit-daemon1795-21rtkit-daemon21:56:551
179699340,3rtkit-daemon0-21swapper/123:42:011
179699340,3rtkit-daemon0-21swapper/022:30:521
179699340,3rtkit-daemon0-21swapper/021:04:490
3733138993318,4cyclictest13-21ksoftirqd/023:00:000
3733138993318,4cyclictest13-21ksoftirqd/021:50:010
3733138993313,4cyclictest13-21ksoftirqd/023:04:570
3733138993313,4cyclictest13-21ksoftirqd/022:20:240
3733138993313,4cyclictest13-21ksoftirqd/022:01:330
3733138993313,4cyclictest13-21ksoftirqd/000:27:340
3733138993312,4cyclictest13-21ksoftirqd/023:55:030
3733138993312,4cyclictest13-21ksoftirqd/023:55:030
3733138993312,4cyclictest13-21ksoftirqd/022:14:190
3733138993312,4cyclictest13-21ksoftirqd/021:14:510
3733138993312,4cyclictest13-21ksoftirqd/021:14:510
179699330,4rtkit-daemon1795-21rtkit-daemon23:37:321
179699330,3rtkit-daemon1795-21rtkit-daemon22:47:040
179699330,3rtkit-daemon0-21swapper/119:57:060
38115002320,4chrt0-21swapper/021:50:210
3733146993229,2cyclictest3869247-1kworker/1:0H23:19:551
3733146993228,2cyclictest3811022-21kworker/1:000:14:551
3733138993218,3cyclictest13-21ksoftirqd/000:00:040
3733138993214,4cyclictest13-21ksoftirqd/000:14:050
3733138993213,4cyclictest13-21ksoftirqd/023:16:310
3733138993213,4cyclictest13-21ksoftirqd/021:33:310
3733138993213,4cyclictest13-21ksoftirqd/021:22:370
3733138993212,4cyclictest13-21ksoftirqd/023:08:570
3733138993212,4cyclictest13-21ksoftirqd/022:51:090
3733138993212,4cyclictest13-21ksoftirqd/022:30:140
3733138993212,4cyclictest13-21ksoftirqd/000:31:380
179699320,6rtkit-daemon3927444-21sh00:33:121
179699320,3rtkit-daemon0-21swapper/120:38:510
179699320,3rtkit-daemon0-21swapper/022:25:191
179699320,3rtkit-daemon0-21swapper/022:25:191
3733138993112,4cyclictest13-21ksoftirqd/022:27:330
3733138993112,4cyclictest13-21ksoftirqd/022:27:330
3733138993112,4cyclictest13-21ksoftirqd/021:41:180
179699310,3rtkit-daemon1795-21rtkit-daemon19:55:051
179699310,3rtkit-daemon13-21ksoftirqd/020:50:021
179699310,3rtkit-daemon0-21swapper/021:02:091
3733138993016,4cyclictest13-21ksoftirqd/000:05:070
3733138993011,4cyclictest13-21ksoftirqd/000:15:210
179699300,4rtkit-daemon3930491-21ssh00:37:001
179699300,4rtkit-daemon1795-21rtkit-daemon22:08:281
179699300,3rtkit-daemon0-21swapper/123:40:150
179699300,3rtkit-daemon0-21swapper/023:20:181
3733138992913,4cyclictest13-21ksoftirqd/023:47:000
3733138992912,4cyclictest13-21ksoftirqd/021:05:520
3733138992911,4cyclictest13-21ksoftirqd/020:53:000
179699290,4rtkit-daemon1795-21rtkit-daemon00:16:591
179699290,3rtkit-daemon1795-21rtkit-daemon19:40:150
179699290,3rtkit-daemon0-21swapper/022:40:441
179699290,3rtkit-daemon0-21swapper/022:40:441
3733146992812,10cyclictest3904189-21apt-get00:00:121
3733138992814,4cyclictest13-21ksoftirqd/019:30:010
3733138992812,3cyclictest13-21ksoftirqd/020:03:090
373314699270,6cyclictest0-21swapper/122:46:061
373314699270,6cyclictest0-21swapper/121:43:161
3733138992712,3cyclictest13-21ksoftirqd/020:45:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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