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2025-11-16 - 05:42
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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 Sun Nov 16, 2025 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28237812270187,29sleep00-21swapper/019:09:490
28236352263181,28sleep10-21swapper/119:08:151
125899760,3rtkit-daemon0-21swapper/022:10:320
125899690,3rtkit-daemon0-21swapper/021:13:110
282393599674,42cyclictest2826587-21apt-get19:15:171
282393599633,40cyclictest2985596-21apt-get23:45:151
125899620,5rtkit-daemon2872741-21diskmemload21:51:250
125899620,11rtkit-daemon3020805-21/usr/sbin/munin00:35:290
29013342610,6sleep00-21swapper/021:47:400
125899610,3rtkit-daemon0-21swapper/019:10:460
125899600,3rtkit-daemon0-21swapper/020:46:270
125899600,3rtkit-daemon0-21swapper/020:41:280
125899570,4rtkit-daemon1257-21rtkit-daemon21:40:170
282393599562,6cyclictest3010226-21apt-get00:20:141
125899560,3rtkit-daemon0-21swapper/022:47:300
125899560,3rtkit-daemon0-21swapper/022:31:560
125899560,3rtkit-daemon0-21swapper/021:18:300
282393599553,8cyclictest2992651-21apt-get23:55:151
125899550,4rtkit-daemon1257-21rtkit-daemon23:16:180
125899550,3rtkit-daemon0-21swapper/000:09:110
282393599541,10cyclictest2872741-21diskmemload21:10:121
125899540,4rtkit-daemon1257-21rtkit-daemon19:16:360
125899540,3rtkit-daemon1257-21rtkit-daemon20:24:180
125899540,3rtkit-daemon0-21swapper/023:01:210
29409662530,3sleep10-21swapper/122:43:011
282393599531,8cyclictest2947859-21ssh22:52:061
125899530,4rtkit-daemon1257-21rtkit-daemon22:26:070
125899530,3rtkit-daemon1257-21rtkit-daemon00:22:190
125899530,3rtkit-daemon0-21swapper/022:54:410
125899530,3rtkit-daemon0-21swapper/022:42:360
125899530,3rtkit-daemon0-21swapper/022:02:510
282393599521,9cyclictest3008016-21ssh00:15:351
282393599521,9cyclictest2900605-21ssh21:46:021
282393599521,9cyclictest2879203-21ssh21:17:441
282393599521,8cyclictest2923716-21ssh22:19:231
282393599521,10cyclictest2896938-21ssh21:40:381
125899520,3rtkit-daemon0-21swapper/022:38:230
125899520,3rtkit-daemon0-21swapper/022:08:290
282393599512,7cyclictest2927882-21apt-get22:25:151
282393599511,7cyclictest3015525-21ssh00:26:131
282393599511,6cyclictest2872741-21diskmemload22:20:331
282393599510,9cyclictest2915572-21ssh22:07:161
125899510,4rtkit-daemon1257-21rtkit-daemon23:30:441
125899510,3rtkit-daemon0-21swapper/000:32:390
282393599501,8cyclictest2964915-21ssh23:15:341
282393599501,7cyclictest2973014-21ssh23:27:281
282393599501,5cyclictest2996731-21apt-get00:00:131
282393599501,10cyclictest3021761-21ssh00:35:241
282393599500,6cyclictest2959333-21ssh23:09:091
125899500,4rtkit-daemon1257-21rtkit-daemon23:35:480
125899500,4rtkit-daemon1257-21rtkit-daemon21:34:500
125899500,18rtkit-daemon0-21swapper/122:55:580
282393599499,4cyclictest2858405-21seq20:32:451
282393599491,5cyclictest2854932-21apt-get20:25:141
282393599491,11cyclictest2884325-21cnf-update-db21:25:021
282393599490,9cyclictest3005422-21ssh00:12:291
282393599490,9cyclictest2832096-21seq19:28:271
282393599490,7cyclictest2883110-21ssh21:23:111
125899490,20rtkit-daemon0-21swapper/121:58:110
282393599481,8cyclictest2847296-21memory20:05:211
282393599480,8cyclictest2969566-21ssh23:22:561
282393599480,8cyclictest2863364-21memory20:45:241
282393599473,6cyclictest2832464-21apt-get19:30:131
282393599471,9cyclictest3001031-21memory00:05:211
282393599471,8cyclictest3017294-21apt-get00:30:141
282393599471,8cyclictest2978337-21apt-get23:35:131
282393599471,5cyclictest2989151-21apt-get23:50:141
282393599471,4cyclictest2931503-21apt-get22:30:161
125899470,17rtkit-daemon0-21swapper/100:15:100
282393599461,9cyclictest2866719-21seq20:53:361
282393599461,5cyclictest2953323-21irqstats23:00:211
125899460,1rtkit-daemon1257-21rtkit-daemon23:43:500
282393599451,9cyclictest2949891-21memory22:55:231
282393599451,8cyclictest2983865-21ssh23:41:411
282393599451,7cyclictest2872741-21diskmemload21:57:011
282393599451,6cyclictest2872741-21diskmemload21:38:231
282393599450,9cyclictest2902866-21diskstats21:50:171
282393599450,9cyclictest2846030-21users20:00:251
125899450,13rtkit-daemon0-21swapper/100:26:090
282393599441,6cyclictest2917118-21apt-get22:10:141
282393599440,8cyclictest2836195-21munin-run19:40:001
125899440,5rtkit-daemon2840822-21apt-get19:50:121
125899440,4rtkit-daemon1257-21rtkit-daemon19:21:511
282393599431,7cyclictest2872741-21diskmemload22:04:301
125899430,16rtkit-daemon0-21swapper/120:16:300
282393599422,6cyclictest2872741-21diskmemload23:13:511
125899420,14rtkit-daemon0-21swapper/123:50:400
125899420,14rtkit-daemon0-21swapper/123:46:000
282393599412,9cyclictest2942120-21apt-get22:45:161
282393599381,7cyclictest2872741-21diskmemload21:30:261
282393599380,35cyclictest2838862-21apt-get19:45:151
125899380,13rtkit-daemon0-21swapper/123:06:070
282393599371,4cyclictest2850901-21cnf-update-db20:15:021
125899370,3rtkit-daemon0-21swapper/020:25:430
125899360,3rtkit-daemon0-21swapper/020:50:230
125899360,3rtkit-daemon0-21swapper/019:47:590
125899350,3rtkit-daemon0-21swapper/021:22:030
282393599342,4cyclictest2838179-21python319:45:011
282393599341,8cyclictest2859046-21df_inode20:35:191
2823935993410,4cyclictest287-20systemd-journal20:44:591
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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