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2025-06-17 - 07:01
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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 Jun 17, 2025 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18963452264193,50sleep10-21swapper/119:09:211
18954882251184,51sleep00-21swapper/019:05:300
125899720,3rtkit-daemon1257-21rtkit-daemon22:29:370
125899710,3rtkit-daemon1257-21rtkit-daemon23:47:000
125899690,4rtkit-daemon1257-21rtkit-daemon20:19:050
125899660,4rtkit-daemon1257-21rtkit-daemon20:08:020
125899520,2rtkit-daemon0-21swapper/120:14:511
19396482450,3sleep1672-21dbus-daemon20:55:241
125899410,6rtkit-daemon1899505-21perl19:15:170
125899400,6rtkit-daemon1941437-21ntp_states21:00:211
125899400,5rtkit-daemon1934805-21apt-get20:45:170
125899390,6rtkit-daemon1944371-21diskmemload21:21:440
125899390,3rtkit-daemon0-21swapper/000:07:110
125899380,6rtkit-daemon1257-21rtkit-daemon00:34:551
125899380,3rtkit-daemon0-21swapper/000:02:170
125899370,4rtkit-daemon1257-21rtkit-daemon22:55:231
125899370,4rtkit-daemon1257-21rtkit-daemon22:10:170
125899370,3rtkit-daemon0-21swapper/120:31:521
125899360,4rtkit-daemon1257-21rtkit-daemon23:01:061
125899360,4rtkit-daemon1257-21rtkit-daemon19:23:320
125899360,3rtkit-daemon0-21swapper/123:08:461
125899360,3rtkit-daemon0-21swapper/120:43:381
125899360,3rtkit-daemon0-21swapper/023:36:200
125899360,3rtkit-daemon0-21swapper/023:28:240
125899360,3rtkit-daemon0-21swapper/023:27:331
125899360,3rtkit-daemon0-21swapper/000:13:470
125899350,4rtkit-daemon1257-21rtkit-daemon23:40:580
125899350,4rtkit-daemon1257-21rtkit-daemon23:11:091
125899350,4rtkit-daemon1257-21rtkit-daemon22:23:221
125899350,4rtkit-daemon1257-21rtkit-daemon21:26:461
125899350,4rtkit-daemon1257-21rtkit-daemon19:46:521
125899350,3rtkit-daemon0-21swapper/120:05:391
125899340,5rtkit-daemon141rcu_preempt22:51:031
125899340,4rtkit-daemon1257-21rtkit-daemon23:34:110
125899340,4rtkit-daemon1257-21rtkit-daemon22:51:080
125899340,3rtkit-daemon0-21swapper/123:07:360
125899340,3rtkit-daemon0-21swapper/023:49:081
125899340,3rtkit-daemon0-21swapper/022:10:391
125899340,3rtkit-daemon0-21swapper/021:45:451
125899340,3rtkit-daemon0-21swapper/020:03:241
125899330,4rtkit-daemon1257-21rtkit-daemon22:33:551
125899330,4rtkit-daemon1257-21rtkit-daemon19:39:570
125899330,4rtkit-daemon1257-21rtkit-daemon19:33:390
125899330,4rtkit-daemon0-21swapper/121:07:540
125899330,3rtkit-daemon1257-21rtkit-daemon20:46:261
125899330,3rtkit-daemon0-21swapper/023:33:391
125899330,3rtkit-daemon0-21swapper/000:39:371
125899330,3rtkit-daemon0-21swapper/000:21:311
125899320,4rtkit-daemon1944371-21diskmemload21:44:261
125899320,4rtkit-daemon1257-21rtkit-daemon21:51:590
125899320,3rtkit-daemon0-21swapper/122:59:210
125899320,3rtkit-daemon0-21swapper/122:34:520
125899320,3rtkit-daemon0-21swapper/121:14:550
125899320,3rtkit-daemon0-21swapper/121:04:240
125899320,3rtkit-daemon0-21swapper/120:43:170
125899320,3rtkit-daemon0-21swapper/119:13:230
125899320,3rtkit-daemon0-21swapper/022:16:531
125899320,3rtkit-daemon0-21swapper/000:25:261
125899310,4rtkit-daemon1257-21rtkit-daemon19:25:010
125899310,4rtkit-daemon1257-21rtkit-daemon19:14:431
125899310,3rtkit-daemon0-21swapper/121:18:460
125899310,3rtkit-daemon0-21swapper/022:03:161
125899310,3rtkit-daemon0-21swapper/000:02:561
1896517993012,4cyclictest13-21ksoftirqd/022:08:570
125899300,4rtkit-daemon1257-21rtkit-daemon20:21:110
125899300,3rtkit-daemon1257-21rtkit-daemon20:27:551
125899300,3rtkit-daemon0-21swapper/123:03:150
125899300,3rtkit-daemon0-21swapper/122:36:160
125899300,3rtkit-daemon0-21swapper/120:50:590
125899300,3rtkit-daemon0-21swapper/023:40:401
125899300,3rtkit-daemon0-21swapper/021:55:331
125899300,3rtkit-daemon0-21swapper/019:32:011
1896517992922,5cyclictest13-21ksoftirqd/022:00:010
1896517992912,2cyclictest141rcu_preempt22:22:020
125899290,4rtkit-daemon1257-21rtkit-daemon22:48:561
125899290,4rtkit-daemon1257-21rtkit-daemon19:36:091
125899290,3rtkit-daemon0-21swapper/119:55:110
125899290,3rtkit-daemon0-21swapper/022:09:051
125899290,3rtkit-daemon0-21swapper/019:22:441
125899290,1rtkit-daemon1257-21rtkit-daemon21:32:181
189651799286,2cyclictest19623402ssh21:33:270
1896517992811,10cyclictest2015433-21apt-get22:45:160
125899280,3rtkit-daemon0-21swapper/000:12:191
125899280,1rtkit-daemon1257-21rtkit-daemon00:35:160
189651799277,4cyclictest13-21ksoftirqd/022:19:500
1896517992721,5cyclictest13-21ksoftirqd/000:00:000
125899270,4rtkit-daemon1257-21rtkit-daemon23:11:360
125899270,3rtkit-daemon0-21swapper/023:39:071
125899270,3rtkit-daemon0-21swapper/000:17:091
125899270,1rtkit-daemon1257-21rtkit-daemon23:54:110
125899270,1rtkit-daemon1257-21rtkit-daemon22:42:241
125899270,1rtkit-daemon1257-21rtkit-daemon00:34:430
125899270,1rtkit-daemon1257-21rtkit-daemon00:24:150
1896521992612,12cyclictest26-21ksoftirqd/121:15:011
189651799264,4cyclictest13-21ksoftirqd/023:17:290
1896517992613,3cyclictest13-21ksoftirqd/021:39:450
125899260,3rtkit-daemon0-21swapper/019:26:461
125899260,1rtkit-daemon1257-21rtkit-daemon21:45:530
125899260,1rtkit-daemon1257-21rtkit-daemon21:23:431
125899260,1rtkit-daemon1257-21rtkit-daemon00:29:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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