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2025-10-19 - 23:01
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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 highest latencies:
System rackcslot4.osadl.org (updated Sun Oct 19, 2025 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21062202270197,28sleep10-21swapper/107:06:471
21062942255183,57sleep00-21swapper/007:07:340
125899730,4rtkit-daemon1257-21rtkit-daemon09:12:290
125899710,4rtkit-daemon1257-21rtkit-daemon11:09:190
125899680,4rtkit-daemon1257-21rtkit-daemon08:49:380
125899680,4rtkit-daemon1257-21rtkit-daemon07:22:170
125899670,4rtkit-daemon1257-21rtkit-daemon09:02:310
23091662610,4sleep12309045-21latency_hist12:30:001
125899570,4rtkit-daemon1257-21rtkit-daemon11:30:140
125899510,11rtkit-daemon1257-21rtkit-daemon09:20:170
21913672500,1chrt2191056-21/usr/sbin/munin09:55:201
21902772480,2sleep10-21swapper/109:53:561
21221442470,4chrt0-21swapper/007:45:260
21136702470,8sleep00-21swapper/007:25:190
125899470,6rtkit-daemon2155112-21diskmemload10:45:440
125899400,7rtkit-daemon2289172-21ssh12:02:181
125899390,5rtkit-daemon2286921-21apt-get12:00:110
125899390,4rtkit-daemon0-21swapper/110:47:191
125899380,4rtkit-daemon1257-21rtkit-daemon10:02:391
125899380,4rtkit-daemon0-21swapper/108:15:170
125899380,3rtkit-daemon0-21swapper/010:23:280
125899370,6rtkit-daemon2200078-21ssh10:05:360
125899370,5rtkit-daemon1257-21rtkit-daemon09:05:171
125899370,4rtkit-daemon1257-21rtkit-daemon09:26:310
125899370,4rtkit-daemon1257-21rtkit-daemon08:40:101
125899370,3rtkit-daemon0-21swapper/108:33:211
125899370,3rtkit-daemon0-21swapper/011:24:321
125899370,3rtkit-daemon0-21swapper/010:42:460
125899370,3rtkit-daemon0-21swapper/009:39:470
125899370,3rtkit-daemon0-21swapper/009:31:180
125899360,4rtkit-daemon1257-21rtkit-daemon11:44:190
125899360,4rtkit-daemon1257-21rtkit-daemon11:07:061
125899360,4rtkit-daemon0-21swapper/112:30:540
125899360,3rtkit-daemon0-21swapper/112:29:510
125899360,3rtkit-daemon0-21swapper/108:35:270
125899360,3rtkit-daemon0-21swapper/108:30:200
125899360,3rtkit-daemon0-21swapper/108:11:150
125899360,2rtkit-daemon1257-21rtkit-daemon07:10:151
2106659993530,3cyclictest2298664-21cut12:15:191
2106659993515,12cyclictest2260159-21apt-get11:25:161
125899350,5rtkit-daemon2175792-21diskstats09:35:171
125899350,4rtkit-daemon1257-21rtkit-daemon10:27:280
125899350,4rtkit-daemon1257-21rtkit-daemon10:17:090
125899350,4rtkit-daemon1257-21rtkit-daemon09:46:360
125899350,4rtkit-daemon1257-21rtkit-daemon07:54:220
125899350,3rtkit-daemon0-21swapper/109:54:550
125899350,3rtkit-daemon0-21swapper/108:07:180
125899350,3rtkit-daemon0-21swapper/011:35:141
125899350,3rtkit-daemon0-21swapper/010:35:211
125899350,3rtkit-daemon0-21swapper/010:28:161
125899350,3rtkit-daemon0-21swapper/009:33:171
125899340,4rtkit-daemon1257-21rtkit-daemon09:44:170
125899340,4rtkit-daemon1257-21rtkit-daemon09:12:521
125899340,4rtkit-daemon1257-21rtkit-daemon08:28:571
125899340,3rtkit-daemon0-21swapper/111:58:380
125899340,3rtkit-daemon0-21swapper/111:02:320
125899340,3rtkit-daemon0-21swapper/109:59:490
125899340,3rtkit-daemon0-21swapper/108:51:150
125899340,3rtkit-daemon0-21swapper/108:25:270
125899340,3rtkit-daemon0-21swapper/009:49:351
125899330,4rtkit-daemon1257-21rtkit-daemon11:52:430
125899330,4rtkit-daemon1257-21rtkit-daemon10:12:490
125899330,3rtkit-daemon1257-21rtkit-daemon12:36:121
125899330,3rtkit-daemon1257-21rtkit-daemon10:33:380
125899330,3rtkit-daemon0-21swapper/112:38:520
125899330,3rtkit-daemon0-21swapper/110:58:190
125899330,3rtkit-daemon0-21swapper/109:07:000
125899330,3rtkit-daemon0-21swapper/107:17:510
125899330,3rtkit-daemon0-21swapper/011:11:481
2106659993217,9cyclictest2233626-21apt-get10:50:141
125899320,4rtkit-daemon1257-21rtkit-daemon08:19:201
125899320,4rtkit-daemon1257-21rtkit-daemon08:03:431
125899320,4rtkit-daemon0-21swapper/012:24:131
125899320,3rtkit-daemon1257-21rtkit-daemon12:30:121
125899320,3rtkit-daemon1257-21rtkit-daemon08:24:451
125899320,3rtkit-daemon0-21swapper/108:04:420
125899320,3rtkit-daemon0-21swapper/009:19:091
125899320,3rtkit-daemon0-21swapper/007:57:151
125899320,3rtkit-daemon0-21swapper/007:17:271
125899310,4rtkit-daemon1257-21rtkit-daemon11:19:560
125899310,4rtkit-daemon1257-21rtkit-daemon08:06:141
125899310,3rtkit-daemon0-21swapper/010:12:291
2106659993026,3cyclictest63750irq/132-enp2s010:20:591
2106659993025,4cyclictest63750irq/132-enp2s007:42:271
125899300,4rtkit-daemon1257-21rtkit-daemon07:38:591
125899300,3rtkit-daemon0-21swapper/108:23:410
125899300,3rtkit-daemon0-21swapper/012:06:341
125899300,3rtkit-daemon0-21swapper/011:15:441
125899300,3rtkit-daemon0-21swapper/009:40:061
125899290,3rtkit-daemon0-21swapper/107:13:080
125899290,3rtkit-daemon0-21swapper/012:12:421
125899290,1rtkit-daemon1257-21rtkit-daemon12:07:570
2106659992818,6cyclictest2131528-21diskstats08:10:181
210665599288,13cyclictest2143572-21apt-get08:40:190
125899280,4rtkit-daemon1257-21rtkit-daemon07:52:021
125899280,4rtkit-daemon0-21swapper/009:24:381
125899280,3rtkit-daemon0-21swapper/110:03:580
125899280,3rtkit-daemon0-21swapper/008:46:241
125899270,3rtkit-daemon0-21swapper/010:34:281
125899270,1rtkit-daemon1257-21rtkit-daemon10:09:151
210665999263,15cyclictest2149439-21apt-get08:55:141
2106659992622,2cyclictest63750irq/132-enp2s010:15:031
210665999260,24cyclictest2115046-21date07:30:011
125899260,1rtkit-daemon1257-21rtkit-daemon09:16:240
125899260,1rtkit-daemon0-21swapper/108:57:310
2106659992514,6cyclictest63750irq/132-enp2s008:35:131
2106659992512,8cyclictest63750irq/132-enp2s011:00:151
125899250,1rtkit-daemon1257-21rtkit-daemon11:54:141
210665999249,4cyclictest2225669-21tr10:40:141
210665999243,14cyclictest2111288-21apt-get07:20:161
2106655992416,6cyclictest1-21systemd07:35:000
125899240,1rtkit-daemon1257-21rtkit-daemon07:57:020
210665999232,15cyclictest2147485-21apt-get08:50:121
2106655992310,8cyclictest2293554-1kworker/u9:112:10:100
125899230,1rtkit-daemon1257-21rtkit-daemon11:12:210
210665999229,7cyclictest2282984-21apt-get11:55:121
210665999220,10cyclictest2167695-21ssh09:25:051
210665599225,3cyclictest2155112-21diskmemload10:35:230
210665999212,13cyclictest2275504-21apt-get11:45:151
210665999212,13cyclictest2115191-21apt-get07:30:151
210665999212,10cyclictest2121127-21apt-get07:45:141
210665999211,3cyclictest2152959-1kworker/1:1H09:05:001
210665599218,3cyclictest141rcu_preempt11:40:000
210665599213,3cyclictest0-21swapper/011:22:530
2106655992113,6cyclictest13-21ksoftirqd/010:50:030
2106655992110,7cyclictest2302354-21df12:20:150
210665599210,9cyclictest2118959-21awk07:39:590
125899210,13rtkit-daemon0-21swapper/110:57:021
125899210,13rtkit-daemon0-21swapper/011:49:430
210665999206,12cyclictest26-21ksoftirqd/111:40:161
210665999201,9cyclictest2266856-21ssh11:33:431
210665599203,10cyclictest2298388-21apt-get12:15:150
125899200,13rtkit-daemon0-21swapper/011:27:270
125899190,12rtkit-daemon0-21swapper/007:41:220
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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