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2026-06-03 - 11:13
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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 792 highest latencies:
System rackdslot1.osadl.org (updated Wed Jun 03, 2026 00:45:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24027997415,12cyclictest3332-21chrt00:21:082
24027997315,12cyclictest26526-21chrt00:04:272
24027997216,11cyclictest10014-21chrt23:27:162
24027997115,12cyclictest14661-21taskset23:37:522
24027997115,11cyclictest12043-21chrt21:10:382
24027997115,10cyclictest21556-21taskset21:34:272
24027997114,11cyclictest5569-21taskset23:19:182
24027997016,11cyclictest5085-21taskset20:58:252
24027997015,12cyclictest14676-21chrt21:19:522
24027997015,11cyclictest9380-21chrt19:58:312
24027997015,10cyclictest7663-21chrt23:21:312
24027997015,10cyclictest18989-21taskset21:26:052
24027996915,12cyclictest5302-21chrt22:07:462
24027996915,12cyclictest26683-21taskset19:19:292
24027996915,11cyclictest1301-21snmpd00:36:172
24027996914,11cyclictest9896-21chrt22:17:482
24027996914,11cyclictest12216-21chrt23:31:022
2402799684,62cyclictest0-21swapper/221:20:292
24027996816,48cyclictest6388-21seq00:30:132
24027996816,11cyclictest17296-21seq23:44:152
24027996814,10cyclictest21921-21taskset23:54:412
24027996715,11cyclictest18673-21seq20:16:592
24027996714,51cyclictest0-21swapper/221:05:302
24027996714,11cyclictest12221-21taskset22:22:542
24027996711,14cyclictest32679-21sed19:40:002
24027996618,10cyclictest662-21taskset23:09:582
24027996616,11cyclictest31820-21seq19:33:192
24027996616,11cyclictest30706-21seq21:53:392
24027996611,12cyclictest12026-21sed20:05:012
134491660,22ptp4l19879-21/usr/sbin/munin21:30:291
2402799652,60cyclictest0-21swapper/219:45:172
24027996519,11cyclictest23351-21taskset20:27:412
24027996515,10cyclictest32618-21runrttasks20:45:432
24027996514,9cyclictest29978-21cut00:10:202
24027996513,17cyclictest24726-21sed22:50:192
24027996420,12cyclictest2806-21chrt20:53:362
24027996419,11cyclictest13847-21taskset20:06:422
24027996419,10cyclictest7045-21taskset19:53:022
24027996419,10cyclictest21320-21chrt22:41:392
24027996418,9cyclictest28300-21taskset21:47:192
24027996418,10cyclictest28934-21taskset00:08:212
24027996418,10cyclictest25952-21taskset19:13:062
24027996319,11cyclictest19210-21taskset22:39:142
24027996218,11cyclictest23985-21taskset20:30:092
24027996214,10cyclictest534-21runrttasks21:58:202
24027996212,11cyclictest6209-21latency_hist00:30:002
24027996211,10cyclictest24473-21df_abs21:40:142
24027996118,11cyclictest16627-21taskset22:30:362
24027996118,11cyclictest16627-21taskset22:30:362
24027996117,17cyclictest19563-21fschecks_time20:20:162
24027996117,10cyclictest28206-21taskset20:38:112
24027996112,11cyclictest30756-21sed20:45:002
24027996112,11cyclictest13433-21irqrtprio22:25:172
24027996110,19cyclictest6067-21cut22:10:152
134491600,4ptp4l0-21swapper/122:34:491
134491600,4ptp4l0-21swapper/122:34:481
24027995919,15cyclictest7312-21taskset21:01:372
134491590,4ptp4l0-21swapper/021:35:170
134491590,3ptp4l0-21swapper/019:50:150
134491580,4ptp4l17017-21latency_hist21:25:000
134491580,4ptp4l0-21swapper/121:05:231
24027995720,16cyclictest23811-21chrt21:38:532
24027995719,17cyclictest17591-21taskset23:45:102
134491570,4ptp4l0-21swapper/122:41:531
24027995617,10cyclictest23895-21chrt23:55:332
24027995613,10cyclictest2487-21runrttasks19:44:132
134491560,4ptp4l0-21swapper/123:33:361
134491560,4ptp4l0-21swapper/122:17:151
134491560,4ptp4l0-21swapper/120:08:091
134491560,3ptp4l0-21swapper/319:55:343
134491560,3ptp4l0-21swapper/100:35:231
134491560,3ptp4l0-21swapper/023:25:390
134491560,3ptp4l0-21swapper/023:15:160
134491560,18ptp4l0-21swapper/120:12:061
2402799559,42cyclictest2619-21switchtime23:10:262
2402799559,42cyclictest2619-21switchtime23:10:262
134491550,4ptp4l0-21swapper/121:13:001
134491550,4ptp4l0-21swapper/000:30:220
134491550,3ptp4l0-21swapper/121:25:201
24027995418,10cyclictest30644-21chrt23:02:582
134491540,6ptp4l25-21ksoftirqd/123:40:251
134491540,4ptp4l0-21swapper/123:15:441
134491540,4ptp4l0-21swapper/121:20:161
134491540,4ptp4l0-21swapper/022:16:400
134491530,4ptp4l0-21swapper/123:05:031
134491530,4ptp4l0-21swapper/100:11:361
134491530,4ptp4l0-21swapper/000:18:310
134491530,3ptp4l0-21swapper/120:24:541
134491530,3ptp4l0-21swapper/100:25:341
134491520,4ptp4l0-21swapper/319:26:383
134491520,4ptp4l0-21swapper/119:46:241
134491520,3ptp4l0-21swapper/022:13:150
106592520,5sleep10-21swapper/122:20:161
24027995112,7cyclictest2583-21ls22:00:282
134491510,4ptp4l0-21swapper/122:37:241
134491510,3ptp4l0-21swapper/119:43:441
134491500,9ptp4l21993-21df_inode19:05:150
134491500,4ptp4l0-21swapper/323:50:343
134491500,4ptp4l0-21swapper/322:27:183
134491500,4ptp4l0-21swapper/319:40:343
134491500,4ptp4l0-21swapper/120:47:291
134491500,4ptp4l0-21swapper/119:33:341
134491500,4ptp4l0-21swapper/020:15:070
134491490,5ptp4l0-21swapper/323:26:383
134491490,4ptp4l0-21swapper/323:58:053
134491490,4ptp4l0-21swapper/121:17:441
134491490,4ptp4l0-21swapper/121:02:381
24028994833,4cyclictest41-21ksoftirqd/320:15:003
134491480,4ptp4l0-21swapper/123:13:021
134491480,4ptp4l0-21swapper/123:13:021
134491480,4ptp4l0-21swapper/120:35:061
134491470,4ptp4l0-21swapper/322:51:013
134491470,4ptp4l0-21swapper/219:22:332
134491470,4ptp4l0-21swapper/122:03:281
134491470,4ptp4l0-21swapper/100:19:481
134491470,3ptp4l0-21swapper/121:42:561
134491470,3ptp4l0-21swapper/120:57:101
134491470,10ptp4l0-21swapper/322:31:313
134491470,10ptp4l0-21swapper/322:31:303
2402899462,2cyclictest121rcu_preempt23:20:123
2402899460,3cyclictest121rcu_preempt00:39:593
2402799460,44cyclictest0-21swapper/222:45:252
134491460,9ptp4l0-21swapper/020:29:170
134491460,4ptp4l0-21swapper/022:30:110
134491460,4ptp4l0-21swapper/022:30:110
2402899451,6cyclictest41-21ksoftirqd/323:07:073
134491450,5ptp4l12637-21apt-get22:25:111
134491450,4ptp4l0-21swapper/319:20:053
134491450,3ptp4l0-21swapper/320:40:183
134491450,3ptp4l0-21swapper/100:22:271
46198440,14rtkit-daemon23301-21awk19:05:283
24028994439,3cyclictest41-21ksoftirqd/321:30:003
2402899440,2cyclictest121rcu_preempt21:15:203
134491440,5ptp4l0-21swapper/319:50:113
134491440,4ptp4l20843-21ls23:50:200
134491440,4ptp4l14578-21apt-get20:10:122
134491440,4ptp4l1000-21apt-get22:00:123
134491440,4ptp4l0-21swapper/322:45:203
134491440,2ptp4l0-21swapper/022:55:180
24028994338,3cyclictest41-21ksoftirqd/300:29:593
2402899431,3cyclictest121rcu_preempt19:45:253
2402899430,3cyclictest121rcu_preempt20:00:043
24025994337,3cyclictest9-21ksoftirqd/021:20:000
134491430,9ptp4l0-21swapper/022:24:060
134491430,9ptp4l0-21swapper/000:09:000
134491430,7ptp4l24015-21cat19:10:011
134491430,7ptp4l0-21swapper/119:08:491
134491430,5ptp4l0-21swapper/321:55:113
134491430,5ptp4l0-21swapper/100:05:221
134491430,4ptp4l4584-21ls20:55:243
134491430,4ptp4l26439-21apt-get22:55:132
134491430,4ptp4l2318-21gnome-shell20:06:580
134491430,4ptp4l0-21swapper/323:18:203
134491430,4ptp4l0-21swapper/120:54:251
134491430,10ptp4l0-21swapper/321:09:543
134491420,5ptp4l1137-21fschecks_count20:50:160
134491420,4ptp4l3744-21ls19:45:190
134491420,4ptp4l28925-21df_inode20:40:151
134491420,4ptp4l14852-21apt-get23:40:033
134491420,4ptp4l10072-21df_inode20:00:140
134491420,4ptp4l0-21swapper/319:12:203
134491420,4ptp4l0-21swapper/123:00:471
134491420,4ptp4l0-21swapper/121:58:451
134491420,4ptp4l0-21swapper/121:46:471
134491420,4ptp4l0-21swapper/119:51:381
134491420,3ptp4l0-21swapper/323:02:273
134491420,3ptp4l0-21swapper/123:56:141
24028994136,3cyclictest41-21ksoftirqd/320:50:153
24028994129,10cyclictest41-21ksoftirqd/321:40:013
24027994115,11cyclictest29315-21chrt19:25:392
134491410,9ptp4l0-21swapper/022:52:500
134491410,6ptp4l7850-21/usr/sbin/munin19:55:160
134491410,5ptp4l31218-21sed20:45:173
134491410,5ptp4l0-21swapper/322:35:203
134491410,5ptp4l0-21swapper/320:30:033
134491410,5ptp4l0-21swapper/119:25:001
134491410,4ptp4l8018-21iostat19:55:191
134491410,4ptp4l6711-21diskstats00:30:171
134491410,4ptp4l24141-21apt-get22:50:121
134491410,4ptp4l20386-21irqstats22:40:180
134491410,4ptp4l20305-21ntp_states20:20:223
134491410,4ptp4l14122-21sensors_temp23:35:240
134491410,4ptp4l0-21swapper/322:20:263
134491410,4ptp4l0-21swapper/123:53:341
134491410,4ptp4l0-21swapper/122:11:241
134491410,4ptp4l0-21swapper/119:38:481
134491410,4ptp4l0-21swapper/100:03:541
134491410,4ptp4l0-21swapper/021:58:260
134491410,4ptp4l0-21swapper/000:20:240
134491410,3ptp4l5899-21apt-get23:20:120
134491410,3ptp4l24571-21iostat20:30:180
134491410,3ptp4l21851-21apt-get21:35:121
134491410,3ptp4l17983-21ntp_states20:15:221
134491410,3ptp4l17258-21apt-get21:25:120
134491410,3ptp4l0-21swapper/322:59:233
134491400,7ptp4l0-21swapper/023:32:010
134491400,5ptp4l619-21df_abs19:40:110
134491400,5ptp4l26864-21/usr/sbin/munin22:55:161
134491400,5ptp4l2402899cyclictest22:10:193
134491400,5ptp4l0-21swapper/321:30:463
134491400,5ptp4l0-21swapper/022:05:200
134491400,4ptp4l18449-21irqstats23:45:180
134491400,4ptp4l0-21swapper/321:10:153
134491400,4ptp4l0-21swapper/320:19:583
134491400,4ptp4l0-21swapper/319:32:283
134491400,4ptp4l0-21swapper/300:05:193
134491400,4ptp4l0-21swapper/123:22:401
134491400,4ptp4l0-21swapper/120:01:361
134491400,4ptp4l0-21swapper/023:01:380
134491400,4ptp4l0-21swapper/021:48:380
134491400,4ptp4l0-21swapper/021:40:140
134491400,4ptp4l0-21swapper/021:05:210
134491400,4ptp4l0-21swapper/021:00:120
134491400,4ptp4l0-21swapper/020:21:510
134491400,4ptp4l0-21swapper/019:27:100
134491400,4ptp4l0-21swapper/019:20:500
134491400,4ptp4l0-21swapper/019:16:040
134491400,4ptp4l0-21swapper/019:12:160
134491400,4ptp4l0-21swapper/000:35:170
134491400,3ptp4l29078-21diskstats21:50:161
134491400,3ptp4l27419-21ntp_states20:35:220
134491400,3ptp4l22201-21apt-get23:55:120
134491400,3ptp4l22146-21diskstats22:45:151
134491400,3ptp4l15619-21df_inode23:40:140
134491400,3ptp4l0-21swapper/123:36:581
134491400,3ptp4l0-21swapper/021:50:180
134491400,2ptp4l2326-21llvmpipe-320:10:580
134491400,2ptp4l121rcu_preempt20:55:050
24028993935,3cyclictest41-21ksoftirqd/300:25:003
134491390,5ptp4l1209-21df22:00:140
134491390,5ptp4l0-21swapper/321:46:163
134491390,5ptp4l0-21swapper/022:25:120
134491390,4ptp4l0-21swapper/323:30:143
134491390,4ptp4l0-21swapper/323:10:143
134491390,4ptp4l0-21swapper/323:10:143
134491390,4ptp4l0-21swapper/321:20:283
134491390,4ptp4l0-21swapper/321:00:193
134491390,4ptp4l0-21swapper/320:35:263
134491390,4ptp4l0-21swapper/319:35:103
134491390,4ptp4l0-21swapper/319:19:143
134491390,4ptp4l0-21swapper/200:17:262
134491390,4ptp4l0-21swapper/123:45:201
134491390,4ptp4l0-21swapper/122:05:141
134491390,4ptp4l0-21swapper/120:30:221
134491390,4ptp4l0-21swapper/120:25:151
134491390,4ptp4l0-21swapper/119:26:441
134491390,4ptp4l0-21swapper/022:48:080
134491390,4ptp4l0-21swapper/021:30:120
134491390,4ptp4l0-21swapper/021:10:090
134491390,4ptp4l0-21swapper/020:40:240
134491390,4ptp4l0-21swapper/019:35:460
134491390,4ptp4l0-21swapper/019:33:030
134491390,4ptp4l0-21swapper/000:25:020
134491390,3ptp4l25112-21ls21:40:203
46198380,4rtkit-daemon0-21swapper/321:50:183
24028993834,3cyclictest41-21ksoftirqd/300:35:003
24028993834,2cyclictest41-21ksoftirqd/322:05:193
24028993834,2cyclictest41-21ksoftirqd/300:15:183
24028993832,3cyclictest41-21ksoftirqd/323:45:123
134491380,5ptp4l0-21swapper/300:00:123
134491380,4ptp4l0-21swapper/323:36:283
134491380,4ptp4l0-21swapper/322:15:143
134491380,4ptp4l0-21swapper/320:25:263
134491380,4ptp4l0-21swapper/219:05:582
134491380,4ptp4l0-21swapper/119:15:161
134491380,4ptp4l0-21swapper/023:10:430
134491380,4ptp4l0-21swapper/023:10:430
134491380,4ptp4l0-21swapper/022:35:160
134491380,4ptp4l0-21swapper/020:45:460
134491380,4ptp4l0-21swapper/000:10:280
134491380,4ptp4l0-21swapper/000:00:180
134491380,3ptp4l0-21swapper/320:05:213
134491380,3ptp4l0-21swapper/123:25:241
134491380,3ptp4l0-21swapper/023:05:260
24028993732,3cyclictest41-21ksoftirqd/322:40:183
134491370,4ptp4l0-21swapper/300:10:263
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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