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2026-06-12 - 14:37
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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 Fri Jun 12, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
200303223480,8sleep12002789-21/usr/sbin/munin19:05:201
20041772312270,28sleep00-21swapper/019:06:070
204164421580,3sleep126-21ksoftirqd/120:35:231
179699600,3rtkit-daemon1795-21rtkit-daemon20:20:151
179699560,3rtkit-daemon0-21swapper/023:46:531
179699540,4rtkit-daemon1795-21rtkit-daemon22:07:160
21211382510,5sleep02120992-21latency_hist22:40:010
179699480,4rtkit-daemon1795-21rtkit-daemon19:39:520
179699480,3rtkit-daemon1795-21rtkit-daemon22:21:131
20782292460,3sleep12054161-21diskmemload21:40:241
2004634994614,16cyclictest2122972-1kworker/u9:223:05:110
179699440,3rtkit-daemon1795-21rtkit-daemon21:14:040
200463499438,13cyclictest2163494-21seq23:36:000
179699430,4rtkit-daemon1795-21rtkit-daemon20:17:380
179699430,3rtkit-daemon1795-21rtkit-daemon20:07:561
200463499425,12cyclictest2177329-21ntp_states23:55:210
179699420,4rtkit-daemon2180538-21apt-get00:00:110
179699420,3rtkit-daemon1795-21rtkit-daemon20:33:261
179699410,7rtkit-daemon0-21swapper/121:11:301
179699410,3rtkit-daemon1795-21rtkit-daemon20:12:481
179699410,3rtkit-daemon0-21swapper/000:11:051
200463799403,7cyclictest26-21ksoftirqd/122:20:011
179699400,5rtkit-daemon1795-21rtkit-daemon22:50:120
179699400,3rtkit-daemon0-21swapper/121:09:521
179699400,3rtkit-daemon0-21swapper/021:30:321
179699400,3rtkit-daemon0-21swapper/000:07:221
200463799392,7cyclictest26-21ksoftirqd/121:30:011
200463499396,13cyclictest2050021-21seq20:57:510
179699390,5rtkit-daemon2122972-1kworker/u9:223:34:401
179699390,3rtkit-daemon0-21swapper/023:53:001
179699390,3rtkit-daemon0-21swapper/022:47:430
200463799386,8cyclictest26-21ksoftirqd/120:45:011
2004637993814,12cyclictest2048487-21apt-get20:55:111
200463499383,18cyclictest2054161-21diskmemload22:20:050
200463499382,10cyclictest2054161-21diskmemload22:14:410
200463799374,14cyclictest2203940-21seq00:34:361
200463499377,11cyclictest2027941-21seq20:00:580
200463499373,18cyclictest2054161-21diskmemload23:22:140
200463499372,18cyclictest2054161-21diskmemload21:42:110
179699370,3rtkit-daemon0-21swapper/123:06:001
179699370,3rtkit-daemon0-21swapper/023:42:441
179699370,3rtkit-daemon0-21swapper/023:41:540
179699370,3rtkit-daemon0-21swapper/000:38:451
200463499364,9cyclictest2054161-21diskmemload22:40:070
200463499363,16cyclictest2115994-21ssh22:31:450
200463499363,12cyclictest2143145-21apt-get23:10:020
200463499362,13cyclictest2195787-21sh00:22:340
200463499360,18cyclictest2054161-21diskmemload22:00:130
179699360,3rtkit-daemon1795-21rtkit-daemon22:42:151
179699360,3rtkit-daemon0-21swapper/023:17:451
179699360,3rtkit-daemon0-21swapper/022:31:421
179699360,3rtkit-daemon0-21swapper/022:00:321
179699360,3rtkit-daemon0-21swapper/019:46:021
200463799350,8cyclictest26-21ksoftirqd/123:20:231
200463499353,19cyclictest2137699-21ssh23:01:040
200463499352,16cyclictest2193057-21ssh00:19:120
200463499352,10cyclictest2084199-21ssh21:48:550
200463499352,10cyclictest2067981-21sh21:26:490
200463499351,9cyclictest2156339-21taskset23:26:150
179699350,3rtkit-daemon1795-21rtkit-daemon23:19:470
179699350,3rtkit-daemon0-21swapper/022:58:591
179699350,3rtkit-daemon0-21swapper/019:49:550
200463499342,19cyclictest2075460-21sh21:36:350
200463499342,11cyclictest2024591-21seq19:55:070
200463499342,10cyclictest2054161-21diskmemload23:31:120
200463499342,10cyclictest2054161-21diskmemload00:13:590
200463499341,18cyclictest2197140-21apt-get00:25:100
200463499341,18cyclictest2134357-21ssh22:56:390
200463499341,13cyclictest2008446-21sed19:15:240
200463499341,11cyclictest2030061-21taskset20:07:470
179699340,3rtkit-daemon1795-21rtkit-daemon23:12:571
179699340,3rtkit-daemon0-21swapper/023:55:211
179699340,3rtkit-daemon0-21swapper/021:57:111
179699340,3rtkit-daemon0-21swapper/000:20:281
200463799339,5cyclictest26-21ksoftirqd/123:28:471
200463799335,7cyclictest26-21ksoftirqd/123:00:121
200463799333,18cyclictest2180325-21cnf-update-db00:00:041
2004637993326,5cyclictest2081136-21apt-config21:45:031
200463499333,7cyclictest2070368-21kernelversion21:30:190
200463499333,7cyclictest2045073-21if_err_enp2s020:45:170
200463499333,5cyclictest2054161-21diskmemload00:05:120
200463499332,9cyclictest2205967-21ssh00:35:530
200463499332,9cyclictest2106391-21sh22:19:330
200463499332,7cyclictest2036954-21ls20:25:140
200463499332,16cyclictest2200752-21ssh00:30:070
200463499332,10cyclictest2054161-21diskmemload21:20:390
200463499331,9cyclictest2088445-21ssh21:55:060
200463499331,9cyclictest2060858-21ssh21:17:020
200463499331,11cyclictest2113710-21sh22:29:500
200463499330,10cyclictest2174529-21sh23:51:180
200463799322,8cyclictest2099522-21apt-get22:10:131
200463799322,7cyclictest2084982-21apt-get21:50:141
2004637993218,4cyclictest26-21ksoftirqd/120:20:011
2004637993214,5cyclictest26-21ksoftirqd/119:55:011
200463499322,14cyclictest2051854-21seq21:01:220
200463499321,9cyclictest2086486-21sh21:50:450
200463499321,10cyclictest2054161-21diskmemload23:45:100
200463499321,10cyclictest2044097-21taskset20:42:040
179699320,3rtkit-daemon0-21swapper/022:07:021
200463799317,8cyclictest26-21ksoftirqd/121:15:271
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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