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2023-03-31 - 01:20

x86 Intel Celeron N3350 @1100 MHz, Linux 5.10.90-rt60 (Profile)

Latency plot of system in rack #c, slot #4
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
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 rackcslot4.osadl.org (updated Thu Mar 30, 2023 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
38832222298193,62sleep10-21swapper/107:08:381
38831852249183,51sleep00-21swapper/007:08:120
403988721190,1sleep04039886-21wc11:40:020
1591991150,3rtkit-daemon0-21swapper/109:24:211
3883539998028,32cyclictest4080932-21/usr/sbin/munin12:35:361
159199780,4rtkit-daemon1590-21rtkit-daemon12:21:370
159199770,4rtkit-daemon1590-21rtkit-daemon08:39:470
388353999760,1cyclictest3972747-21dpkg10:05:011
388353999700,3cyclictest1-21systemd08:43:331
388353999700,2cyclictest4026443-40apt-check11:20:281
388353999690,3cyclictest3974285-21ls10:05:321
159199690,4rtkit-daemon1590-21rtkit-daemon10:57:351
388353999680,3cyclictest0-21swapper/110:35:011
388353999670,2cyclictest4003963-21/usr/sbin/munin10:50:321
159199670,4rtkit-daemon1590-21rtkit-daemon11:15:161
159199670,4rtkit-daemon1590-21rtkit-daemon11:14:031
159199670,4rtkit-daemon1590-21rtkit-daemon09:28:541
159199670,3rtkit-daemon0-21swapper/111:26:020
388353999667,20cyclictest4015680-21needreboot11:05:311
388353999660,3cyclictest3892083-21cat07:30:201
388353999660,2cyclictest3886144-21dpkg07:15:161
159199660,3rtkit-daemon1590-21rtkit-daemon10:17:501
159199660,3rtkit-daemon1590-21rtkit-daemon09:43:301
159199660,3rtkit-daemon0-21swapper/011:44:411
159199660,3rtkit-daemon0-21swapper/007:35:531
388353999650,3cyclictest0-21swapper/110:11:371
388353999640,6cyclictest4060120-21sh12:06:241
159199640,3rtkit-daemon0-21swapper/107:21:400
159199640,3rtkit-daemon0-21swapper/008:58:471
3883539996316,20cyclictest4054725-21/usr/sbin/munin12:00:191
388353999631,3cyclictest3969128-21perf10:00:011
159199630,3rtkit-daemon0-21swapper/012:22:541
159199630,3rtkit-daemon0-21swapper/010:41:151
388353999622,6cyclictest4063178-21mailstats12:10:411
388353999620,5cyclictest3918134-21chrt08:34:491
388353999620,3cyclictest40132682sleep111:01:491
388353999620,3cyclictest3947972-21taskset09:31:131
388353999620,2cyclictest4050145-21seq11:53:321
159199620,4rtkit-daemon1590-21rtkit-daemon10:37:491
159199620,3rtkit-daemon0-21swapper/111:55:440
159199620,3rtkit-daemon0-21swapper/110:15:420
3883539996118,19cyclictest4000706-21cut10:45:231
159199610,3rtkit-daemon0-21swapper/107:17:570
388353999600,2cyclictest4039177-21runrttasks11:38:441
388353999600,1cyclictest0-21swapper/108:35:331
159199600,3rtkit-daemon1590-21rtkit-daemon10:26:441
159199600,3rtkit-daemon0-21swapper/109:56:310
159199600,3rtkit-daemon0-21swapper/108:18:590
159199600,3rtkit-daemon0-21swapper/107:32:450
388353999590,5cyclictest4054199-21runrttasks11:59:281
159199590,3rtkit-daemon0-21swapper/112:05:110
159199590,3rtkit-daemon0-21swapper/110:51:280
159199590,3rtkit-daemon0-21swapper/109:43:430
159199590,3rtkit-daemon0-21swapper/109:24:430
159199590,3rtkit-daemon0-21swapper/108:11:570
159199590,3rtkit-daemon0-21swapper/107:10:330
388353999587,26cyclictest4079697-21sshd12:32:571
388353999583,4cyclictest4043736-21cut11:45:221
388353999582,2cyclictest0-21swapper/109:36:551
388353999580,3cyclictest3924874-21grep08:50:281
388353899584,11cyclictest3972734-21python310:05:010
159199580,4rtkit-daemon1590-21rtkit-daemon11:34:451
159199580,3rtkit-daemon0-21swapper/111:07:010
159199580,3rtkit-daemon0-21swapper/110:46:200
159199580,3rtkit-daemon0-21swapper/109:36:540
159199580,3rtkit-daemon0-21swapper/108:55:550
159199580,3rtkit-daemon0-21swapper/108:25:440
159199580,3rtkit-daemon0-21swapper/108:07:030
159199580,3rtkit-daemon0-21swapper/108:00:410
159199580,3rtkit-daemon0-21swapper/107:53:420
159199580,3rtkit-daemon0-21swapper/107:27:020
159199580,3rtkit-daemon0-21swapper/009:17:281
388353999578,18cyclictest3891078-21awk07:25:291
388353999570,1cyclictest0-21swapper/110:21:001
159199570,3rtkit-daemon0-21swapper/110:57:130
159199570,3rtkit-daemon0-21swapper/110:35:570
159199570,3rtkit-daemon0-21swapper/110:10:270
159199570,3rtkit-daemon0-21swapper/109:29:140
159199570,3rtkit-daemon0-21swapper/107:46:220
159199570,3rtkit-daemon0-21swapper/012:15:221
159199560,3rtkit-daemon0-21swapper/109:45:010
159199560,3rtkit-daemon0-21swapper/108:21:440
3883539995512,26cyclictest4030532-21sh11:26:201
3883539995512,20cyclictest3959278-21sh09:46:141
3883539995512,19cyclictest4075778-21sh12:27:411
159199550,5rtkit-daemon1590-21rtkit-daemon12:38:280
159199550,3rtkit-daemon0-21swapper/110:24:410
159199550,3rtkit-daemon0-21swapper/110:09:530
388353999541,32cyclictest3900193-21apt-get07:50:061
3883539995412,30cyclictest38849892sleep107:11:141
388353999540,1cyclictest0-21swapper/109:52:361
159199540,3rtkit-daemon0-21swapper/110:40:470
159199540,3rtkit-daemon0-21swapper/107:57:260
159199540,3rtkit-daemon0-21swapper/007:58:151
159199540,3rtkit-daemon0-21swapper/007:49:511
40669682530,4sleep0161rcuc/012:15:310
388353999530,1cyclictest0-21swapper/108:10:241
159199530,4rtkit-daemon1590-21rtkit-daemon07:36:150
159199530,3rtkit-daemon0-21swapper/111:34:580
159199530,3rtkit-daemon0-21swapper/108:52:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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