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2026-03-24 - 19:40
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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 rackdslot4.osadl.org (updated Tue Mar 24, 2026 12:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591204170,23phc2sys0-21swapper/307:09:333
221582202168,23sleep10-21swapper/107:06:381
221272202167,23sleep20-21swapper/207:06:132
223222198166,21sleep00-21swapper/007:08:450
138491810,1ptp4l391rcuc/309:10:203
138491800,1ptp4l391rcuc/311:40:193
2272299679,10cyclictest12729-21echo09:00:023
22722996510,17cyclictest6653-21date09:50:243
2272299649,16cyclictest0-21swapper/310:47:323
210012620,2sleep30-21swapper/311:25:183
2272299617,15cyclictest24758-21/usr/sbin/munin10:30:253
22722995610,9cyclictest2315-21gnome-shell11:47:593
121192560,2sleep10-21swapper/112:10:251
22722995510,9cyclictest2302-21latency_hist09:45:003
2272299539,18cyclictest12456-21/usr/sbin/munin10:05:173
2272299538,16cyclictest1319-21snmpd10:37:303
2272299528,16cyclictest22663-21grep09:20:133
2272299519,14cyclictest2315-21gnome-shell08:19:583
2272299517,16cyclictest16758-21cat09:05:253
2272299517,16cyclictest16758-21cat09:05:253
2272299509,18cyclictest17764-21grep08:05:133
2272299505,15cyclictest0-21swapper/310:55:173
2272299498,15cyclictest2315-21gnome-shell09:56:583
2272299488,8cyclictest18657-21phc2sys10:15:223
2272299488,16cyclictest8259-21grep12:05:123
2272299488,14cyclictest23414-21expr11:30:143
2272299487,8cyclictest21674-21mailstats08:10:253
2272299486,9cyclictest11026-21ls11:05:213
2272299485,12cyclictest11101-21ls10:00:193
2272299479,17cyclictest15625-21/usr/sbin/munin12:20:223
2272299469,15cyclictest2315-21gnome-shell08:47:583
2272299467,7cyclictest24733-21ls12:35:263
2272299465,15cyclictest0-21swapper/308:40:163
2272299458,10cyclictest1319-21snmpd07:54:053
2272299457,7cyclictest16028-21ps08:00:213
2272299456,8cyclictest21710-21ls09:15:253
2272299448,15cyclictest27595-21/usr/sbin/munin08:25:293
2272299448,15cyclictest27595-21/usr/sbin/munin08:25:283
2272299447,7cyclictest3011-21ps10:50:193
2272299436,8cyclictest22121-21ls12:30:253
134991430,7getstats2272299cyclictest10:21:093
138491420,0ptp4l401ktimersoftd/307:25:103
2272299418,17cyclictest15256-21/usr/sbin/munin11:15:233
2272299416,7cyclictest30554-21perl09:35:163
138491410,0ptp4l401ktimersoftd/310:29:553
138491410,0ptp4l401ktimersoftd/309:48:553
138491410,0ptp4l401ktimersoftd/308:37:103
22721994032,5cyclictest33-21ksoftirqd/209:30:002
22720994035,3cyclictest25-21ksoftirqd/109:40:001
138491400,0ptp4l401ktimersoftd/309:34:263
138491400,0ptp4l401ktimersoftd/309:25:203
22721993931,5cyclictest33-21ksoftirqd/207:40:112
22721993826,10cyclictest33-21ksoftirqd/211:40:332
2272199380,36cyclictest24833-21dump-pmu-power09:24:592
2272299376,12cyclictest4139-21ls11:55:183
22722993731,4cyclictest41-21ksoftirqd/308:32:073
22721993731,4cyclictest33-21ksoftirqd/210:50:352
22721993731,4cyclictest33-21ksoftirqd/209:07:412
22721993731,4cyclictest33-21ksoftirqd/209:07:412
22720993733,2cyclictest25-21ksoftirqd/109:00:001
22720993732,3cyclictest25-21ksoftirqd/109:10:001
22720993732,3cyclictest25-21ksoftirqd/109:10:001
22720993732,3cyclictest25-21ksoftirqd/107:40:181
22720993732,3cyclictest25-21ksoftirqd/107:15:001
22722993630,4cyclictest41-21ksoftirqd/308:58:233
22721993630,4cyclictest33-21ksoftirqd/211:09:362
22721993630,4cyclictest33-21ksoftirqd/210:41:162
22721993630,4cyclictest33-21ksoftirqd/207:36:462
22721993629,5cyclictest33-21ksoftirqd/211:33:192
22720993631,3cyclictest25-21ksoftirqd/111:10:141
22720993630,4cyclictest25-21ksoftirqd/111:24:081
22720993630,4cyclictest25-21ksoftirqd/109:42:181
22720993630,4cyclictest25-21ksoftirqd/107:45:251
22719993630,4cyclictest9-21ksoftirqd/008:42:520
22719993630,4cyclictest9-21ksoftirqd/008:18:450
50798350,6rtkit-daemon0-21swapper/011:25:310
22722993529,4cyclictest41-21ksoftirqd/311:00:113
22722993515,17cyclictest27753-21cron11:40:003
2272199357,26cyclictest0-21swapper/208:24:132
2272199356,28cyclictest0-21swapper/212:15:332
22721993532,2cyclictest33-21ksoftirqd/212:00:002
22721993529,4cyclictest33-21ksoftirqd/210:32:292
22721993529,4cyclictest33-21ksoftirqd/210:05:342
22721993529,4cyclictest33-21ksoftirqd/209:38:582
22721993529,4cyclictest33-21ksoftirqd/208:30:542
22721993529,4cyclictest33-21ksoftirqd/208:19:122
22721993529,4cyclictest33-21ksoftirqd/207:24:192
22720993530,3cyclictest25-21ksoftirqd/111:35:201
22720993530,3cyclictest25-21ksoftirqd/111:20:001
22720993530,3cyclictest25-21ksoftirqd/110:15:131
22720993530,3cyclictest25-21ksoftirqd/108:14:591
22720993529,4cyclictest25-21ksoftirqd/110:57:001
22720993529,4cyclictest25-21ksoftirqd/110:38:461
22720993529,4cyclictest25-21ksoftirqd/110:34:461
22720993529,4cyclictest25-21ksoftirqd/109:56:261
22720993529,4cyclictest25-21ksoftirqd/108:46:301
22720993529,4cyclictest25-21ksoftirqd/108:37:431
22720993529,4cyclictest25-21ksoftirqd/108:08:431
22720993529,3cyclictest25-21ksoftirqd/110:50:001
22720993528,4cyclictest25-21ksoftirqd/110:15:001
22720993527,5cyclictest25-21ksoftirqd/110:00:111
22719993529,4cyclictest9-21ksoftirqd/011:00:120
22719993529,4cyclictest9-21ksoftirqd/010:46:440
2272299346,14cyclictest13147-21/usr/sbin/munin12:15:243
22722993429,3cyclictest41-21ksoftirqd/310:42:373
22722993428,4cyclictest41-21ksoftirqd/311:12:063
22721993429,3cyclictest33-21ksoftirqd/211:36:262
22721993429,3cyclictest33-21ksoftirqd/210:22:242
22721993429,3cyclictest33-21ksoftirqd/207:28:322
22721993428,4cyclictest33-21ksoftirqd/211:24:532
22721993428,4cyclictest33-21ksoftirqd/210:56:122
22721993428,4cyclictest33-21ksoftirqd/209:53:392
22721993428,4cyclictest33-21ksoftirqd/208:59:182
22721993428,4cyclictest33-21ksoftirqd/208:47:242
22721993428,4cyclictest33-21ksoftirqd/208:43:512
22720993429,3cyclictest25-21ksoftirqd/109:24:591
22720993428,4cyclictest25-21ksoftirqd/112:29:431
22720993428,4cyclictest25-21ksoftirqd/112:18:401
22720993428,4cyclictest25-21ksoftirqd/111:00:051
22720993428,4cyclictest25-21ksoftirqd/109:11:571
22720993428,4cyclictest25-21ksoftirqd/108:21:021
22720993428,4cyclictest25-21ksoftirqd/107:53:341
22720993428,4cyclictest25-21ksoftirqd/107:36:061
22720993428,4cyclictest25-21ksoftirqd/107:29:511
22720993428,4cyclictest25-21ksoftirqd/107:22:491
22720993428,3cyclictest25-21ksoftirqd/110:50:191
22719993429,3cyclictest9-21ksoftirqd/011:31:490
22719993428,4cyclictest9-21ksoftirqd/010:51:050
22719993428,4cyclictest9-21ksoftirqd/010:30:430
22719993428,4cyclictest9-21ksoftirqd/010:05:440
22719993428,3cyclictest13240-21grep09:00:170
2272299334,17cyclictest0-21swapper/307:35:113
22722993327,4cyclictest41-21ksoftirqd/307:20:343
22722993310,20cyclictest20179-21latency_hist11:25:003
22721993328,3cyclictest33-21ksoftirqd/207:46:462
22721993327,4cyclictest33-21ksoftirqd/210:18:152
22721993327,4cyclictest33-21ksoftirqd/209:55:112
22721993327,4cyclictest33-21ksoftirqd/209:46:202
22721993327,4cyclictest33-21ksoftirqd/209:17:242
22721993327,4cyclictest33-21ksoftirqd/208:02:062
22720993330,2cyclictest25-21ksoftirqd/111:30:201
22720993328,3cyclictest25-21ksoftirqd/111:26:121
22720993328,3cyclictest25-21ksoftirqd/110:24:441
22720993328,3cyclictest25-21ksoftirqd/110:10:001
22720993328,3cyclictest25-21ksoftirqd/109:34:361
22720993327,4cyclictest25-21ksoftirqd/111:07:071
22720993327,3cyclictest25-21ksoftirqd/112:20:031
22720993327,3cyclictest25-21ksoftirqd/109:15:181
22719993328,3cyclictest9-21ksoftirqd/012:15:100
22719993328,3cyclictest9-21ksoftirqd/012:07:070
22719993328,3cyclictest9-21ksoftirqd/011:41:560
22719993328,3cyclictest9-21ksoftirqd/007:19:320
22719993327,4cyclictest9-21ksoftirqd/012:30:580
22719993327,4cyclictest9-21ksoftirqd/012:04:500
22719993327,4cyclictest9-21ksoftirqd/010:42:260
22719993327,4cyclictest9-21ksoftirqd/009:58:170
22719993327,4cyclictest9-21ksoftirqd/009:53:360
22719993327,4cyclictest9-21ksoftirqd/008:37:580
22719993327,4cyclictest9-21ksoftirqd/008:20:060
22719993327,4cyclictest9-21ksoftirqd/007:55:580
22719993327,4cyclictest9-21ksoftirqd/007:53:140
2272299326,17cyclictest0-21swapper/312:10:253
2272299324,16cyclictest0-21swapper/307:55:163
22722993228,3cyclictest41-21ksoftirqd/312:29:253
22722993227,3cyclictest41-21ksoftirqd/307:12:403
22722993226,4cyclictest41-21ksoftirqd/308:51:533
22721993227,3cyclictest33-21ksoftirqd/211:45:352
22721993227,3cyclictest33-21ksoftirqd/210:14:382
22721993226,4cyclictest33-21ksoftirqd/211:14:102
22721993226,4cyclictest33-21ksoftirqd/211:03:102
22721993226,4cyclictest33-21ksoftirqd/207:58:242
22721993225,5cyclictest33-21ksoftirqd/211:28:342
22720993228,3cyclictest25-21ksoftirqd/110:25:181
22720993227,3cyclictest25-21ksoftirqd/112:40:001
22720993227,3cyclictest25-21ksoftirqd/107:56:351
22720993226,4cyclictest25-21ksoftirqd/112:03:261
22720993226,4cyclictest25-21ksoftirqd/108:30:371
22719993227,4cyclictest9-21ksoftirqd/007:39:100
22719993227,3cyclictest9-21ksoftirqd/012:35:080
22719993227,3cyclictest9-21ksoftirqd/011:45:370
22719993227,3cyclictest9-21ksoftirqd/010:58:440
22719993227,3cyclictest9-21ksoftirqd/009:25:560
22719993226,4cyclictest9-21ksoftirqd/011:37:510
22719993226,4cyclictest9-21ksoftirqd/011:17:410
22719993226,4cyclictest9-21ksoftirqd/009:49:510
22719993226,4cyclictest9-21ksoftirqd/009:38:560
22719993226,4cyclictest9-21ksoftirqd/007:44:260
22719993226,4cyclictest9-21ksoftirqd/007:31:230
2272299313,16cyclictest0-21swapper/307:45:113
22722993125,4cyclictest41-21ksoftirqd/310:11:123
22722993125,4cyclictest41-21ksoftirqd/307:30:463
22722993125,4cyclictest41-21ksoftirqd/307:19:583
22721993126,3cyclictest33-21ksoftirqd/212:33:052
22721993126,3cyclictest33-21ksoftirqd/209:30:292
22721993125,4cyclictest33-21ksoftirqd/212:22:022
22721993125,4cyclictest33-21ksoftirqd/211:52:532
22721993125,4cyclictest33-21ksoftirqd/210:37:132
22721993125,4cyclictest33-21ksoftirqd/208:50:362
22721993124,4cyclictest33-21ksoftirqd/209:00:172
22720993126,3cyclictest25-21ksoftirqd/111:50:021
22720993125,4cyclictest25-21ksoftirqd/110:42:151
22720993125,4cyclictest25-21ksoftirqd/108:40:441
22720993125,4cyclictest25-21ksoftirqd/108:29:301
22720993125,4cyclictest25-21ksoftirqd/108:29:291
22719993126,3cyclictest9-21ksoftirqd/010:17:430
22719993126,3cyclictest9-21ksoftirqd/008:28:030
22719993126,3cyclictest9-21ksoftirqd/008:28:030
22719993126,3cyclictest9-21ksoftirqd/008:02:040
22719993125,4cyclictest9-21ksoftirqd/010:22:210
22719993125,4cyclictest9-21ksoftirqd/009:12:050
22719993125,4cyclictest9-21ksoftirqd/009:07:470
22719993125,4cyclictest9-21ksoftirqd/009:07:470
2272299307,8cyclictest25879-21ps08:20:183
22721993024,4cyclictest33-21ksoftirqd/208:11:082
22721993024,4cyclictest33-21ksoftirqd/207:12:362
22720993025,3cyclictest25-21ksoftirqd/111:50:001
22720993025,3cyclictest25-21ksoftirqd/109:54:591
22720993025,3cyclictest25-21ksoftirqd/108:50:191
22720993025,3cyclictest25-21ksoftirqd/108:05:011
22720993024,4cyclictest25-21ksoftirqd/112:07:441
22720993024,4cyclictest25-21ksoftirqd/111:41:291
22720993024,4cyclictest25-21ksoftirqd/107:16:191
22720993024,3cyclictest25-21ksoftirqd/112:00:001
22719993025,3cyclictest9-21ksoftirqd/012:30:010
22719993025,3cyclictest9-21ksoftirqd/009:43:130
22719993025,3cyclictest9-21ksoftirqd/008:58:110
22719993024,4cyclictest9-21ksoftirqd/012:22:280
22719993024,4cyclictest9-21ksoftirqd/011:21:340
22719993024,4cyclictest9-21ksoftirqd/008:46:300
22719993024,4cyclictest9-21ksoftirqd/008:11:020
22719993024,4cyclictest9-21ksoftirqd/007:21:490
22719993023,4cyclictest9-21ksoftirqd/010:38:530
22722992924,3cyclictest41-21ksoftirqd/311:54:583
22721992924,3cyclictest33-21ksoftirqd/212:08:392
22721992923,4cyclictest33-21ksoftirqd/212:14:232
22721992923,4cyclictest33-21ksoftirqd/208:06:152
22720992924,3cyclictest25-21ksoftirqd/112:30:121
22720992924,3cyclictest25-21ksoftirqd/109:25:141
22720992924,2cyclictest25-21ksoftirqd/108:20:001
22720992923,4cyclictest25-21ksoftirqd/109:46:151
22719992924,3cyclictest9-21ksoftirqd/010:01:180
22719992924,3cyclictest9-21ksoftirqd/008:53:010
22719992924,3cyclictest9-21ksoftirqd/007:48:280
22719992924,3cyclictest9-21ksoftirqd/007:14:550
22719992923,4cyclictest9-21ksoftirqd/008:07:450
2272299287,7cyclictest5323-21apt-get12:00:043
22721992823,3cyclictest33-21ksoftirqd/209:45:002
22720992823,3cyclictest25-21ksoftirqd/109:03:261
22719992823,3cyclictest9-21ksoftirqd/012:00:000
22719992823,3cyclictest9-21ksoftirqd/008:32:510
2272299274,14cyclictest0-21swapper/307:44:363
22721992722,3cyclictest33-21ksoftirqd/210:25:022
22721992722,3cyclictest33-21ksoftirqd/210:00:192
22721992721,4cyclictest33-21ksoftirqd/208:28:492
22721992721,4cyclictest33-21ksoftirqd/208:28:492
22721992721,3cyclictest33-21ksoftirqd/212:30:012
22721992720,4cyclictest33-21ksoftirqd/209:13:012
22720992722,3cyclictest25-21ksoftirqd/107:30:161
22719992722,3cyclictest9-21ksoftirqd/011:09:560
22719992722,3cyclictest9-21ksoftirqd/010:12:460
22719992722,3cyclictest9-21ksoftirqd/009:30:100
22721992620,4cyclictest33-21ksoftirqd/207:34:582
22719992621,3cyclictest9-21ksoftirqd/010:25:080
22719992620,4cyclictest9-21ksoftirqd/007:26:010
22721992520,3cyclictest33-21ksoftirqd/207:51:592
22721992520,3cyclictest33-21ksoftirqd/207:15:132
22721992519,4cyclictest33-21ksoftirqd/212:36:582
22721992514,9cyclictest33-21ksoftirqd/211:15:272
22719992520,3cyclictest9-21ksoftirqd/009:20:000
22719992519,4cyclictest9-21ksoftirqd/009:21:310
22719992419,3cyclictest9-21ksoftirqd/011:51:090
22719992318,3cyclictest9-21ksoftirqd/011:10:590
22721992114,5cyclictest33-21ksoftirqd/212:00:252
22721992015,3cyclictest33-21ksoftirqd/208:36:182
22721991914,3cyclictest33-21ksoftirqd/210:46:222
22719991915,2cyclictest9-21ksoftirqd/012:14:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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