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2025-07-07 - 02:15
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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 376 highest latencies:
System rackcslot4.osadl.org (updated Sun Jul 06, 2025 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25526132268194,58sleep10-21swapper/107:06:281
25527032259190,55sleep00-21swapper/007:07:260
25819732790,1chrt2581923-21/usr/sbin/munin08:20:001
255303799643,41cyclictest2633385-21apt-get09:50:150
255303799642,43cyclictest2582140-21apt-get08:20:110
255303799642,42cyclictest2717111-21apt-get11:40:140
255303799633,41cyclictest2687348-21apt-get11:00:150
255303799632,42cyclictest2617791-21apt-get09:30:120
255303799622,41cyclictest2572356-21apt-get07:55:170
255303799622,40cyclictest2602179-21apt-get09:10:140
255303799621,43cyclictest2576273-21apt-get08:05:130
125899620,3rtkit-daemon0-21swapper/108:43:071
255303799602,5cyclictest2732375-21apt-get12:00:240
255303799602,43cyclictest2662779-21ssh10:28:220
255303799602,40cyclictest2743218-21apt-get12:15:160
125899590,4rtkit-daemon1257-21rtkit-daemon09:29:530
255303799582,33cyclictest2587821-21python308:35:010
255303799572,6cyclictest2553201-21apt-get07:10:140
255303799560,34cyclictest2760193-21rm12:38:020
125899560,4rtkit-daemon1257-21rtkit-daemon11:05:520
2553037995513,30cyclictest2654414-21sh10:16:360
255303799550,3cyclictest2667886-21python310:35:010
255303799550,3cyclictest2569827-21python307:50:020
255303799547,26cyclictest2567651-21taskset07:43:040
2553037995411,31cyclictest2670324-21sh10:36:190
255303799539,33cyclictest0-21swapper/011:46:570
255303799537,26cyclictest2646578-21taskset10:06:150
255303799532,4cyclictest2706287-21apt-get11:25:180
2553037995310,28cyclictest2715643-21seq11:37:100
255303799530,3cyclictest2754996-21ntp_states12:30:210
255303799529,24cyclictest0-21swapper/009:45:580
255303799521,3cyclictest2587785-21apt-get08:35:060
125899520,4rtkit-daemon1257-21rtkit-daemon08:19:160
255303799511,6cyclictest2673775-21ssh10:40:480
255303799510,9cyclictest2624080-21ssh09:37:170
255303799510,7cyclictest2677756-21ssh10:46:100
255303799510,6cyclictest2595061-21awk08:50:250
255303799510,4cyclictest2711762-21sh11:31:180
255303799510,34cyclictest2560136-21/usr/sbin/munin07:25:280
125899510,4rtkit-daemon1257-21rtkit-daemon12:20:430
255303799501,8cyclictest2703969-21ssh11:20:470
255303799501,4cyclictest2639398-21ssh09:57:000
255303799501,4cyclictest2612524-21ssh09:22:180
255303799497,26cyclictest0-21swapper/008:04:510
255303799491,9cyclictest2564071-21apt-get07:35:120
255303799491,8cyclictest2726289-21ssh11:50:500
255303799491,6cyclictest2730704-21ssh11:58:050
255303799491,3cyclictest2608534-21ssh09:17:170
255303799491,3cyclictest2557700-21apt-get07:20:130
255303799490,9cyclictest2601705-21taskset09:08:110
255303799490,4cyclictest2650720-21ssh10:11:550
125899490,4rtkit-daemon1257-21rtkit-daemon08:11:191
125899490,3rtkit-daemon1257-21rtkit-daemon09:41:090
255303799480,10cyclictest2643923-21ssh10:03:330
255303799471,7cyclictest2742314-21sh12:13:300
255303799471,7cyclictest2698075-21ssh11:14:070
255303799471,3cyclictest2584091-21apt-get08:25:110
255303799461,7cyclictest2701085-21sh11:17:370
255303799461,7cyclictest2572196-21cat07:55:000
255303799461,5cyclictest2596210-21/usr/sbin/munin08:55:210
255303799460,5cyclictest2752775-21taskset12:27:200
255303799460,5cyclictest2679797-21ssh10:50:090
255303799460,5cyclictest2657843-21sh10:20:510
255303799451,8cyclictest2737876-21rm12:06:310
255303799450,7cyclictest2686882-21sh10:59:370
125899450,6rtkit-daemon2699627-21ntp_states11:15:251
255303799431,4cyclictest2590379-21apt-get08:40:120
255303799431,3cyclictest2592643-21perl08:45:190
255303799430,8cyclictest2563886-21perf07:35:000
255303799430,4cyclictest2556494-21ntpq07:15:210
255303799430,3cyclictest2578402-21cat08:10:170
255303799411,6cyclictest2599968-21pluginstate09:05:010
26388822400,2sleep10-21swapper/109:55:531
27497362390,2sleep12749738-21sh12:23:391
125899390,3rtkit-daemon0-21swapper/110:40:571
26134012380,7sleep126-21ksoftirqd/109:24:061
125899380,5rtkit-daemon2667885-21python310:35:001
125899360,5rtkit-daemon2661669-21rm10:26:051
125899360,3rtkit-daemon0-21swapper/110:00:171
125899360,3rtkit-daemon0-21swapper/108:39:371
125899350,4rtkit-daemon1257-21rtkit-daemon08:05:271
125899350,3rtkit-daemon0-21swapper/009:00:511
125899340,3rtkit-daemon0-21swapper/008:50:191
125899340,3rtkit-daemon0-21swapper/007:50:201
125899340,3rtkit-daemon0-21swapper/007:23:061
2553039993320,11cyclictest26-21ksoftirqd/111:05:001
125899330,3rtkit-daemon0-21swapper/011:45:321
26562282320,4sleep10-21swapper/110:20:061
125899320,4rtkit-daemon1257-21rtkit-daemon11:59:251
125899320,4rtkit-daemon0-21swapper/007:45:551
125899320,3rtkit-daemon0-21swapper/011:21:551
125899320,3rtkit-daemon0-21swapper/009:43:241
125899320,3rtkit-daemon0-21swapper/009:09:241
125899320,3rtkit-daemon0-21swapper/007:55:421
125899310,4rtkit-daemon1257-21rtkit-daemon07:25:081
125899310,3rtkit-daemon0-21swapper/012:02:331
125899310,3rtkit-daemon0-21swapper/010:16:181
125899310,3rtkit-daemon0-21swapper/010:11:121
125899300,3rtkit-daemon0-21swapper/012:19:331
125899300,3rtkit-daemon0-21swapper/011:52:201
125899300,3rtkit-daemon0-21swapper/011:12:241
125899300,3rtkit-daemon0-21swapper/009:53:561
125899300,3rtkit-daemon0-21swapper/009:35:241
125899300,3rtkit-daemon0-21swapper/009:16:531
125899300,3rtkit-daemon0-21swapper/007:43:141
125899300,3rtkit-daemon0-21swapper/007:31:051
125899300,3rtkit-daemon0-21swapper/007:14:121
2553039992915,12cyclictest26-21ksoftirqd/109:30:011
125899290,3rtkit-daemon0-21swapper/012:26:171
125899290,3rtkit-daemon0-21swapper/007:15:451
125899270,1rtkit-daemon1257-21rtkit-daemon11:30:041
2553039992618,6cyclictest2684829-21/usr/sbin/munin10:55:251
125899260,21rtkit-daemon2553028-21cyclictest08:21:311
125899260,1rtkit-daemon1257-21rtkit-daemon11:43:481
255303999252,14cyclictest2679837-21apt-get10:50:141
2553039992519,5cyclictest26-21ksoftirqd/108:35:001
255303999251,19cyclictest2676005-21apt-get10:45:151
2553039992510,5cyclictest0-21swapper/111:25:561
255303999250,6cyclictest0-21swapper/110:37:211
125899250,4rtkit-daemon1257-21rtkit-daemon10:05:261
255303999248,11cyclictest2713585-21apt-get11:35:151
255303999247,2cyclictest141rcu_preempt08:46:211
2553039992417,5cyclictest26-21ksoftirqd/108:05:001
125899240,19rtkit-daemon1257-21rtkit-daemon09:30:081
255303999233,3cyclictest0-21swapper/112:33:041
255303999233,13cyclictest2757688-21apt-get12:35:121
255303999230,6cyclictest0-21swapper/108:27:251
255303999222,3cyclictest141rcu_preempt09:45:241
255303999222,15cyclictest26-21ksoftirqd/111:05:151
255303999220,4cyclictest2565792-21grep07:39:221
125899220,4rtkit-daemon1257-21rtkit-daemon08:58:141
255303999214,11cyclictest2731817-21kworker/u8:212:05:151
255303999210,7cyclictest63750irq/132-enp2s009:12:461
255303999190,5cyclictest2740573-21grep12:10:251
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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