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2025-12-23 - 05:36
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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 Dec 23, 2025 00:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33283522268192,27sleep10-21swapper/119:05:351
33287362261187,28sleep00-21swapper/019:09:340
179699680,4rtkit-daemon1795-21rtkit-daemon20:51:291
179699670,3rtkit-daemon1795-21rtkit-daemon19:34:491
33878542600,7sleep00-21swapper/021:35:220
179699530,4rtkit-daemon1795-21rtkit-daemon00:25:101
179699510,4rtkit-daemon1795-21rtkit-daemon00:33:491
34095042490,2sleep00-21swapper/022:30:210
179699490,4rtkit-daemon1795-21rtkit-daemon23:28:341
179699480,4rtkit-daemon1795-21rtkit-daemon23:35:511
179699460,3rtkit-daemon1795-21rtkit-daemon23:20:111
33302472400,4sleep13330248-21unixbench_multi19:10:241
179699380,3rtkit-daemon0-21swapper/123:03:081
179699370,3rtkit-daemon0-21swapper/121:29:471
179699370,3rtkit-daemon0-21swapper/119:23:311
179699360,3rtkit-daemon0-21swapper/119:45:361
179699360,3rtkit-daemon0-21swapper/021:09:060
179699360,3rtkit-daemon0-21swapper/000:11:570
179699350,5rtkit-daemon3375495-21df21:05:151
179699350,3rtkit-daemon0-21swapper/119:50:251
179699350,3rtkit-daemon0-21swapper/119:48:240
179699350,3rtkit-daemon0-21swapper/119:25:180
179699350,3rtkit-daemon0-21swapper/023:46:060
179699350,3rtkit-daemon0-21swapper/020:33:050
179699340,5rtkit-daemon3456221-21cpuspeed_turbos00:30:140
179699340,4rtkit-daemon1795-21rtkit-daemon21:22:001
179699340,4rtkit-daemon1795-21rtkit-daemon20:45:000
179699340,3rtkit-daemon0-21swapper/021:02:221
179699340,3rtkit-daemon0-21swapper/020:36:591
179699340,3rtkit-daemon0-21swapper/020:27:501
179699340,3rtkit-daemon0-21swapper/020:24:360
179699340,3rtkit-daemon0-21swapper/020:18:381
332889299330,6cyclictest3404761-21dump-pmu-power22:19:591
332889299330,32cyclictest0-21swapper/100:35:171
179699330,4rtkit-daemon1795-21rtkit-daemon22:46:460
179699330,4rtkit-daemon1795-21rtkit-daemon20:29:100
179699330,4rtkit-daemon1795-21rtkit-daemon19:15:551
179699330,3rtkit-daemon0-21swapper/122:07:310
179699330,3rtkit-daemon0-21swapper/022:41:271
179699320,4rtkit-daemon1795-21rtkit-daemon22:01:021
179699320,4rtkit-daemon1795-21rtkit-daemon21:56:530
179699320,4rtkit-daemon1795-21rtkit-daemon20:06:330
179699320,3rtkit-daemon1795-21rtkit-daemon19:41:151
179699320,3rtkit-daemon1795-21rtkit-daemon00:07:300
179699320,3rtkit-daemon0-21swapper/023:42:491
179699320,3rtkit-daemon0-21swapper/022:51:001
179699320,3rtkit-daemon0-21swapper/020:46:461
179699320,3rtkit-daemon0-21swapper/020:22:031
179699320,3rtkit-daemon0-21swapper/019:38:331
179699320,3rtkit-daemon0-21swapper/000:09:381
179699320,3rtkit-daemon0-21swapper/000:00:171
179699310,4rtkit-daemon1795-21rtkit-daemon23:54:240
179699310,4rtkit-daemon1795-21rtkit-daemon23:44:450
179699310,3rtkit-daemon1795-21rtkit-daemon21:01:510
179699310,3rtkit-daemon1795-21rtkit-daemon20:03:021
179699310,3rtkit-daemon0-21swapper/123:34:400
179699310,3rtkit-daemon0-21swapper/122:02:210
179699310,3rtkit-daemon0-21swapper/022:46:181
179699310,3rtkit-daemon0-21swapper/021:46:251
179699310,3rtkit-daemon0-21swapper/020:44:461
179699310,3rtkit-daemon0-21swapper/020:31:091
179699310,3rtkit-daemon0-21swapper/019:28:231
179699310,3rtkit-daemon0-21swapper/000:16:091
3328892993018,7cyclictest3411205-21apt-get22:35:111
3328889993021,7cyclictest3333579-21/usr/sbin/munin19:20:150
179699300,4rtkit-daemon1795-21rtkit-daemon19:34:360
179699300,3rtkit-daemon1795-21rtkit-daemon20:12:111
179699300,3rtkit-daemon1795-21rtkit-daemon19:36:430
179699300,3rtkit-daemon0-21swapper/100:35:050
179699300,3rtkit-daemon0-21swapper/023:53:111
179699300,3rtkit-daemon0-21swapper/023:49:311
179699300,3rtkit-daemon0-21swapper/022:56:051
179699300,3rtkit-daemon0-21swapper/020:05:441
179699300,25rtkit-daemon890-21lldpd23:07:330
3328889992926,2cyclictest3358785-1kworker/0:2H00:25:180
179699290,3rtkit-daemon0-21swapper/023:56:391
179699290,3rtkit-daemon0-21swapper/021:54:391
179699280,3rtkit-daemon0-21swapper/123:02:090
179699280,3rtkit-daemon0-21swapper/122:25:530
179699270,3rtkit-daemon1795-21rtkit-daemon21:15:050
179699270,21rtkit-daemon3328883-21cyclictest22:14:410
179699260,3rtkit-daemon0-21swapper/119:51:430
179699260,2rtkit-daemon0-21swapper/000:10:071
179699260,21rtkit-daemon3328883-21cyclictest22:15:240
3328892992512,11cyclictest26-21ksoftirqd/100:20:241
179699250,3rtkit-daemon0-21swapper/021:37:311
179699250,20rtkit-daemon3328883-21cyclictest19:42:270
179699250,20rtkit-daemon1795-21rtkit-daemon20:59:121
179699250,1rtkit-daemon1795-21rtkit-daemon23:08:281
332889299245,12cyclictest3388955-21apt-get21:40:121
179699240,4rtkit-daemon1795-21rtkit-daemon21:42:520
179699240,1rtkit-daemon1795-21rtkit-daemon00:02:160
179699240,19rtkit-daemon3328883-21cyclictest23:28:490
179699240,19rtkit-daemon3328883-21cyclictest20:11:500
332889299232,15cyclictest3406909-21apt-get22:25:141
332889299230,6cyclictest0-21swapper/121:17:341
179699230,3rtkit-daemon1795-21rtkit-daemon19:17:000
179699230,1rtkit-daemon1795-21rtkit-daemon22:57:500
179699230,1rtkit-daemon1795-21rtkit-daemon21:10:460
179699230,1rtkit-daemon0-21swapper/021:12:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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