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2025-09-18 - 23:31
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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 Thu Sep 18, 2025 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10826142274194,27sleep10-21swapper/107:09:561
10824482273192,66sleep00-21swapper/007:08:090
11032722820,1sleep11103275-21cut07:55:261
125899770,5rtkit-daemon1257-21rtkit-daemon09:41:391
10877952550,3sleep00-21swapper/007:20:120
125899510,4rtkit-daemon1257-21rtkit-daemon08:24:040
125899490,4rtkit-daemon1257-21rtkit-daemon07:44:281
125899470,4rtkit-daemon1257-21rtkit-daemon09:24:591
1082728994510,9cyclictest26-21ksoftirqd/107:35:241
125899390,3rtkit-daemon0-21swapper/112:34:221
10950732390,10sleep013-21ksoftirqd/007:36:250
108272899391,15cyclictest141rcu_preempt11:35:021
108272899390,8cyclictest26-21ksoftirqd/111:00:001
108272899388,7cyclictest26-21ksoftirqd/111:40:191
108272899380,7cyclictest26-21ksoftirqd/111:55:001
108272899380,10cyclictest26-21ksoftirqd/110:20:011
125899370,4rtkit-daemon0-21swapper/010:21:241
125899370,3rtkit-daemon0-21swapper/112:37:271
11053272370,4chrt0-21swapper/108:00:231
125899360,5rtkit-daemon1234417-21ssh11:31:041
125899360,4rtkit-daemon1257-21rtkit-daemon10:52:380
125899360,3rtkit-daemon0-21swapper/108:51:511
125899360,3rtkit-daemon0-21swapper/009:57:150
125899360,3rtkit-daemon0-21swapper/008:30:270
108272899368,9cyclictest26-21ksoftirqd/108:30:021
108272899360,9cyclictest26-21ksoftirqd/107:50:001
108272899360,8cyclictest26-21ksoftirqd/109:50:011
125899350,6rtkit-daemon1095451-21apt-get07:40:050
125899350,5rtkit-daemon1113806-21chrt08:24:121
125899350,3rtkit-daemon0-21swapper/107:51:011
125899350,3rtkit-daemon0-21swapper/011:56:060
108272899354,10cyclictest26-21ksoftirqd/110:47:231
108272899351,9cyclictest26-21ksoftirqd/112:00:011
108272899351,8cyclictest26-21ksoftirqd/112:25:011
108272899351,8cyclictest26-21ksoftirqd/112:25:001
125899340,4rtkit-daemon1257-21rtkit-daemon12:29:340
125899340,3rtkit-daemon0-21swapper/011:39:460
108272899346,7cyclictest26-21ksoftirqd/108:10:171
108272899341,10cyclictest26-21ksoftirqd/110:50:141
108272699340,7cyclictest1101771-21python307:55:010
125899330,4rtkit-daemon1257-21rtkit-daemon11:54:430
125899330,4rtkit-daemon1257-21rtkit-daemon07:29:551
125899330,3rtkit-daemon1257-21rtkit-daemon12:05:320
125899330,2rtkit-daemon1257-21rtkit-daemon09:21:380
11781092330,4sleep10-21swapper/110:10:231
108272899333,9cyclictest26-21ksoftirqd/111:46:191
108272899333,9cyclictest26-21ksoftirqd/111:46:191
108272899330,8cyclictest26-21ksoftirqd/112:15:011
108272899330,8cyclictest26-21ksoftirqd/109:20:011
108272899330,8cyclictest26-21ksoftirqd/108:45:001
125899320,4rtkit-daemon1257-21rtkit-daemon08:29:470
125899320,4rtkit-daemon1083575-21strings07:10:201
125899320,4rtkit-daemon0-21swapper/110:40:140
125899320,3rtkit-daemon1257-21rtkit-daemon11:10:530
125899320,3rtkit-daemon0-21swapper/012:04:011
125899320,3rtkit-daemon0-21swapper/011:15:570
108272899325,8cyclictest26-21ksoftirqd/112:08:391
108272899324,8cyclictest26-21ksoftirqd/110:00:151
108272899322,8cyclictest26-21ksoftirqd/111:05:181
108272899320,9cyclictest1085074-21munin-node07:15:021
125899310,4rtkit-daemon1257-21rtkit-daemon12:20:540
125899310,4rtkit-daemon1257-21rtkit-daemon12:20:530
125899310,4rtkit-daemon0-21swapper/112:11:310
108272899315,8cyclictest26-21ksoftirqd/111:24:361
108272899313,3cyclictest26-21ksoftirqd/111:20:011
108272899311,9cyclictest26-21ksoftirqd/111:00:161
108272899311,8cyclictest26-21ksoftirqd/108:35:211
108272899310,9cyclictest26-21ksoftirqd/112:25:271
108272899310,9cyclictest26-21ksoftirqd/112:19:281
108272899310,9cyclictest26-21ksoftirqd/107:30:211
108272899310,7cyclictest26-21ksoftirqd/108:30:001
108272899310,6cyclictest1-21systemd10:45:001
108272699310,7cyclictest1091488-21latency_hist07:30:010
125899300,4rtkit-daemon1257-21rtkit-daemon09:45:340
125899300,3rtkit-daemon0-21swapper/110:38:310
125899300,3rtkit-daemon0-21swapper/109:41:290
125899300,3rtkit-daemon0-21swapper/107:57:250
108272899305,8cyclictest26-21ksoftirqd/111:14:501
108272899304,7cyclictest26-21ksoftirqd/110:25:431
108272899303,7cyclictest26-21ksoftirqd/109:55:521
108272899301,4cyclictest26-21ksoftirqd/107:20:231
108272899300,9cyclictest26-21ksoftirqd/108:55:201
108272899300,8cyclictest26-21ksoftirqd/110:05:541
108272899300,8cyclictest26-21ksoftirqd/109:10:201
108272899300,7cyclictest26-21ksoftirqd/109:50:241
108272899300,7cyclictest1229516-21apt-get11:25:171
125899290,3rtkit-daemon0-21swapper/111:32:030
125899290,3rtkit-daemon0-21swapper/111:22:280
108272899294,8cyclictest26-21ksoftirqd/108:16:381
108272899291,8cyclictest26-21ksoftirqd/109:33:261
108272899291,11cyclictest26-21ksoftirqd/110:30:021
108272899290,8cyclictest26-21ksoftirqd/109:00:181
108272899290,7cyclictest1106282-21/usr/sbin/munin08:05:161
108272899290,10cyclictest26-21ksoftirqd/109:36:021
108272899290,10cyclictest26-21ksoftirqd/108:45:201
125899280,3rtkit-daemon0-21swapper/107:33:030
108272899280,9cyclictest26-21ksoftirqd/110:36:311
125899270,3rtkit-daemon0-21swapper/112:37:120
125899270,3rtkit-daemon0-21swapper/112:16:260
125899270,3rtkit-daemon0-21swapper/110:45:530
125899270,3rtkit-daemon0-21swapper/108:44:560
125899270,3rtkit-daemon0-21swapper/009:08:191
108272699278,6cyclictest1183663-21turbostat10:20:000
125899260,3rtkit-daemon0-21swapper/108:00:430
125899260,1rtkit-daemon1257-21rtkit-daemon10:14:060
108272899266,9cyclictest26-21ksoftirqd/109:26:581
125899250,4rtkit-daemon1257-21rtkit-daemon09:51:310
125899250,3rtkit-daemon0-21swapper/108:54:020
125899250,3rtkit-daemon0-21swapper/108:35:490
125899250,1rtkit-daemon1257-21rtkit-daemon08:10:260
125899250,1rtkit-daemon1257-21rtkit-daemon07:15:250
108272699250,8cyclictest1098411-21gltestperf07:45:170
125899240,4rtkit-daemon1257-21rtkit-daemon11:27:350
125899240,4rtkit-daemon1257-21rtkit-daemon08:49:380
108272699242,15cyclictest1143914-21apt-get09:25:160
108272699240,7cyclictest1214741-21apt-get11:05:030
125899230,1rtkit-daemon1257-21rtkit-daemon11:03:150
108272699232,14cyclictest1147490-21apt-get09:30:170
108272699230,6cyclictest0-21swapper/012:31:540
125899220,1rtkit-daemon1257-21rtkit-daemon10:55:560
125899220,14rtkit-daemon0-21swapper/009:35:530
108272699222,14cyclictest1254244-21apt-get12:00:140
108272699222,14cyclictest1128212-21apt-get09:00:100
108272699213,12cyclictest1126240-21apt-get08:55:140
108272699212,13cyclictest1130572-21apt-get09:05:150
108272699212,13cyclictest1082882-21apt-get07:10:110
108272699212,11cyclictest1173258-21apt-get10:05:140
1082726992115,4cyclictest13-21ksoftirqd/010:00:240
108272699210,8cyclictest1194328-21cron10:35:000
108272699210,6cyclictest0-21swapper/010:25:200
108272699210,6cyclictest0-21swapper/009:10:180
108272699210,6cyclictest0-21swapper/008:05:180
108272699210,5cyclictest0-21swapper/010:20:270
108272699202,11cyclictest1136428-21apt-get09:15:160
1082726991912,5cyclictest672-21dbus-daemon11:45:240
1082726991912,5cyclictest672-21dbus-daemon11:45:230
1082726991912,5cyclictest1241725-21seq11:40:510
1082726991910,7cyclictest1111974-21systemd-run08:20:000
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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