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2025-06-20 - 05:46
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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 all highest latencies:
System rackdslot1.osadl.org (updated Fri Jun 20, 2025 00:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
957921490,4sleep32566499cyclictest20:50:273
10462740,1sleep01047-21cat21:45:000
25664996912,12cyclictest8596-21taskset23:07:473
25664996813,12cyclictest570-21taskset21:41:553
25664996713,12cyclictest11399-21chrt00:22:393
25664996613,11cyclictest9447-21chrt19:40:593
25664996613,11cyclictest24136-21chrt22:31:103
25664996613,11cyclictest21536-21chrt21:19:043
25664996613,11cyclictest14663-21chrt22:11:043
25664996613,11cyclictest1299-21runrttasks23:18:573
25664996613,11cyclictest12124-21taskset20:57:023
25664996513,11cyclictest6904-21chrt00:14:203
25664996414,11cyclictest21279-21taskset20:06:513
25664996413,16cyclictest16084-21taskset00:30:453
25664996413,12cyclictest1299-21runrttasks21:37:503
25664996413,12cyclictest12204-21chrt19:48:573
25664996413,11cyclictest31958-21chrt23:57:273
25664996413,11cyclictest23840-21chrt20:14:573
25664996413,11cyclictest19481-21taskset22:23:173
25664996413,10cyclictest5435-21chrt20:44:543
25664996412,12cyclictest11081-21chrt23:14:593
25664996412,11cyclictest5660-21chrt21:54:023
25664996412,11cyclictest27380-21chrt23:48:323
25664996412,11cyclictest1919-21chrt00:02:203
25664996412,11cyclictest16662-21chrt19:57:043
25664996412,11cyclictest12546-21taskset22:08:233
25664996315,15cyclictest28220-21seq20:21:403
25664996314,12cyclictest13801-21chrt00:28:443
25664996313,18cyclictest1299-21runrttasks20:34:483
25664996313,12cyclictest23709-21chrt21:22:103
25664996313,10cyclictest7803-21taskset21:57:043
25664996313,10cyclictest2343-21taskset19:29:153
25664996312,12cyclictest4156-21chrt00:06:173
25664996312,12cyclictest4156-21chrt00:06:173
25664996312,11cyclictest7306-21taskset19:38:183
25664996311,11cyclictest17237-21/usr/sbin/munin21:10:283
25664996213,19cyclictest29077-21taskset22:42:133
25664996213,12cyclictest1835-21chrt22:55:053
25664996213,11cyclictest19000-21taskset20:02:133
25664996212,12cyclictest14584-21taskset21:03:393
25664996212,12cyclictest10054-21chrt22:01:053
25664996212,11cyclictest25053-21taskset23:43:223
25664996212,11cyclictest21674-21chrt22:26:573
2847191610,4ptp4l0-21swapper/221:20:012
2847191610,4ptp4l0-21swapper/220:40:292
25664996114,11cyclictest18460-21chrt00:36:383
25664996113,12cyclictest30844-21taskset20:29:533
25664996113,12cyclictest30844-21taskset20:29:533
25664996113,12cyclictest22744-21taskset23:38:413
25664996113,12cyclictest17910-21chrt23:25:533
25664996113,10cyclictest2999-21taskset20:38:283
25664996112,10cyclictest29641-21chrt23:53:013
2847191600,4ptp4l0-21swapper/221:48:462
2847191600,4ptp4l0-21swapper/122:00:261
25664996014,16cyclictest9129-21chrt00:18:223
25664996013,11cyclictest26130-21seq21:28:253
25664996013,11cyclictest14421-21taskset19:52:473
25664996012,12cyclictest7684-21taskset20:49:113
25664996010,10cyclictest20268-21taskset23:31:353
2847191590,4ptp4l0-21swapper/223:33:592
2847191590,3ptp4l0-21swapper/122:18:471
2847191590,3ptp4l0-21swapper/019:35:040
25664995913,11cyclictest3097-21taskset21:45:483
25664995912,11cyclictest28232-21taskset21:30:523
25664995912,11cyclictest16722-21taskset21:06:363
25664995912,10cyclictest0-21swapper/323:21:483
2847191580,4ptp4l0-21swapper/222:00:342
2847191580,4ptp4l0-21swapper/221:29:152
2847191580,4ptp4l0-21swapper/219:45:032
2847191580,4ptp4l0-21swapper/219:20:502
2847191580,4ptp4l0-21swapper/021:29:440
2847191580,4ptp4l0-21swapper/000:01:500
2847191580,3ptp4l0-21swapper/123:00:161
2847191580,3ptp4l0-21swapper/123:00:161
25664995812,11cyclictest24681-21taskset22:35:113
2847191570,4ptp4l0-21swapper/222:55:052
2847191570,4ptp4l0-21swapper/220:38:072
2847191570,4ptp4l0-21swapper/121:10:121
2847191570,4ptp4l0-21swapper/021:47:240
2847191570,3ptp4l0-21swapper/023:03:540
2847191570,3ptp4l0-21swapper/023:03:540
25664995712,11cyclictest4671-21chrt19:31:523
25664995712,11cyclictest27639-21chrt19:13:403
2847191560,4ptp4l0-21swapper/219:11:342
2847191560,4ptp4l0-21swapper/200:11:042
2847191560,4ptp4l0-21swapper/022:11:020
2847191560,4ptp4l0-21swapper/019:14:210
2847191560,3ptp4l0-21swapper/223:10:412
2847191560,3ptp4l0-21swapper/020:34:220
2847191550,5ptp4l0-21swapper/319:06:103
2847191550,4ptp4l0-21swapper/221:18:402
2847191550,4ptp4l0-21swapper/221:05:442
2847191550,4ptp4l0-21swapper/022:53:100
2566499559,14cyclictest30378-21/usr/sbin/munin19:20:193
25664995512,11cyclictest29871-21taskset19:17:363
25664995511,11cyclictest25920-21taskset20:17:023
2847191540,4ptp4l0-21swapper/021:59:590
2847191540,4ptp4l0-21swapper/021:37:330
2847191540,4ptp4l0-21swapper/021:01:550
2847191540,3ptp4l0-21swapper/223:21:032
25664995412,11cyclictest1431-21taskset22:53:213
2566299542,17cyclictest17486-21df_inode20:00:181
2847191530,5ptp4l0-21swapper/219:06:532
2847191530,4ptp4l0-21swapper/222:17:592
2566299531,15cyclictest31053-21cat23:55:211
2847191520,4ptp4l0-21swapper/223:02:372
2847191520,4ptp4l0-21swapper/223:02:372
2847191520,4ptp4l0-21swapper/222:45:032
2847191520,4ptp4l0-21swapper/221:10:472
2847191520,3ptp4l0-21swapper/023:44:310
2847191520,10ptp4l0-21swapper/223:25:142
25664995215,9cyclictest6150-21runrttasks23:01:003
25664995215,9cyclictest6150-21runrttasks23:01:003
2847191510,4ptp4l0-21swapper/122:41:311
2847191510,3ptp4l0-21swapper/219:50:272
2566299517,6cyclictest0-21swapper/121:30:191
2847191500,6ptp4l0-21swapper/023:33:240
2847191500,5ptp4l0-21swapper/000:13:350
2847191500,4ptp4l0-21swapper/221:42:332
25664995013,11cyclictest31503-21taskset22:48:023
2566299506,5cyclictest0-21swapper/119:30:181
2847191490,8ptp4l0-21swapper/223:55:202
2566299497,6cyclictest0-21swapper/119:12:451
2847191480,13ptp4l0-21swapper/223:38:222
2847191470,4ptp4l16683-21apt-get00:35:192
2847191470,3ptp4l0-21swapper/123:49:561
25664994715,18cyclictest16933-21taskset22:15:373
2566299474,6cyclictest2847191ptp4l20:00:001
2566299474,6cyclictest26095-21cat22:35:291
2566299471,14cyclictest3826-21perl20:40:171
2847191460,4ptp4l24195-21apt-get21:25:131
2847191460,3ptp4l0-21swapper/120:14:321
2847191460,3ptp4l0-21swapper/022:49:430
2847191460,3ptp4l0-21swapper/000:28:000
2566299460,18cyclictest0-21swapper/123:35:241
2847191450,9ptp4l0-21swapper/200:08:062
2847191450,9ptp4l0-21swapper/200:08:052
2847191450,9ptp4l0-21swapper/019:28:450
2847191450,4ptp4l13911-21apt-get00:30:022
2847191450,4ptp4l0-21swapper/222:07:002
2847191450,4ptp4l0-21swapper/119:25:151
2847191450,4ptp4l0-21swapper/023:38:450
2847191450,4ptp4l0-21swapper/022:36:270
2847191450,4ptp4l0-21swapper/022:05:420
2847191450,3ptp4l0-21swapper/121:37:281
2847191450,3ptp4l0-21swapper/021:51:310
25663994525,17cyclictest33-21ksoftirqd/219:40:012
2566299457,6cyclictest0-21swapper/123:25:251
2566299454,8cyclictest1778-21gnome-shell20:21:581
2566299454,7cyclictest1778-21gnome-shell20:30:581
2847191440,9ptp4l0-21swapper/200:04:002
2847191440,6ptp4l0-21swapper/019:22:030
2847191440,4ptp4l11090-21apt-get23:15:031
2847191440,4ptp4l0-21swapper/020:00:400
2847191440,3ptp4l0-21swapper/223:18:262
2566299444,7cyclictest1778-21gnome-shell21:57:591
2847191430,9ptp4l0-21swapper/223:40:052
2847191430,9ptp4l0-21swapper/221:35:492
2847191430,9ptp4l0-21swapper/220:30:362
2847191430,8ptp4l0-21swapper/220:53:542
2847191430,6ptp4l1997-21awk19:25:302
2847191430,5ptp4l0-21swapper/122:10:221
2847191430,4ptp4l31204-21apt-get21:40:131
2847191430,4ptp4l0-21swapper/121:20:031
2847191430,4ptp4l0-21swapper/023:56:230
2847191430,4ptp4l0-21swapper/023:10:050
2847191430,4ptp4l0-21swapper/020:44:150
2847191430,4ptp4l0-21swapper/020:13:590
2847191430,3ptp4l0-21swapper/023:26:350
2566299436,5cyclictest0-21swapper/123:05:321
2566299432,12cyclictest0-21swapper/120:25:011
2566299432,12cyclictest0-21swapper/120:25:011
2566299431,15cyclictest10636-21fschecks_time19:45:171
2566299431,14cyclictest578-21iostat00:00:191
2849491420,10getstats0-21swapper/220:20:272
2849491420,10getstats0-21swapper/220:16:522
2847191420,9ptp4l0-21swapper/221:59:162
2847191420,8ptp4l0-21swapper/022:15:240
2847191420,5ptp4l0-21swapper/222:20:282
2847191420,5ptp4l0-21swapper/221:50:162
2847191420,5ptp4l0-21swapper/119:50:131
2847191420,5ptp4l0-21swapper/021:30:120
2847191420,4ptp4l28582-21iostat19:15:200
2847191420,4ptp4l2417-21apt-get19:30:040
2847191420,4ptp4l22965-21iostat22:30:190
2847191420,4ptp4l11226-21users00:20:340
2847191420,4ptp4l0-21swapper/222:25:452
2847191420,4ptp4l0-21swapper/023:05:250
2847191420,4ptp4l0-21swapper/020:49:160
2847191420,4ptp4l0-21swapper/020:35:300
2847191420,4ptp4l0-21swapper/020:29:080
2847191420,4ptp4l0-21swapper/020:29:080
2847191420,3ptp4l13881-21apt-get23:20:140
2847191420,3ptp4l0-21swapper/222:50:212
2566299421,6cyclictest2847191ptp4l22:50:191
2566299420,14cyclictest29878-21diskstats22:45:181
2566299420,13cyclictest22823-21perl22:30:181
2849491410,10getstats0-21swapper/223:50:072
2849491410,10getstats0-21swapper/223:46:442
2849491410,10getstats0-21swapper/223:09:582
2849491410,10getstats0-21swapper/219:32:252
2847191410,5ptp4l3776-21sshd22:58:040
2847191410,5ptp4l3609-21/usr/sbin/munin00:05:310
2847191410,5ptp4l3609-21/usr/sbin/munin00:05:300
2847191410,5ptp4l20444-21memory20:05:230
2847191410,5ptp4l0-21swapper/123:20:161
2847191410,5ptp4l0-21swapper/122:05:231
2847191410,5ptp4l0-21swapper/120:50:281
2847191410,5ptp4l0-21swapper/100:25:221
2847191410,5ptp4l0-21swapper/020:55:160
2847191410,4ptp4l9996-21users22:00:300
2847191410,4ptp4l8581-21iostat_ios20:50:190
2847191410,4ptp4l31354-21memory19:20:241
2847191410,4ptp4l20190-21diskstats22:25:170
2847191410,4ptp4l12539-21apt-get19:50:130
2847191410,4ptp4l0-21swapper/200:26:362
2847191410,4ptp4l0-21swapper/121:45:121
2847191410,4ptp4l0-21swapper/121:08:481
2847191410,4ptp4l0-21swapper/022:41:470
2847191410,4ptp4l0-21swapper/020:15:240
2847191410,3ptp4l23563-21perl23:40:191
2847191410,3ptp4l18143-21iostat_ios22:20:211
2847191410,3ptp4l14682-21df_inode00:30:170
2566299415,8cyclictest2467-21iostat_ios22:55:251
2847191400,5ptp4l0-21swapper/120:35:201
2847191400,5ptp4l0-21swapper/100:10:171
2847191400,4ptp4l8842-21ntp_states19:40:280
2847191400,4ptp4l19842-21python23:30:261
2847191400,4ptp4l0-21swapper/222:40:212
2847191400,4ptp4l0-21swapper/222:35:492
2847191400,4ptp4l0-21swapper/222:30:502
2847191400,4ptp4l0-21swapper/222:11:292
2847191400,4ptp4l0-21swapper/221:31:332
2847191400,4ptp4l0-21swapper/221:02:212
2847191400,4ptp4l0-21swapper/220:56:122
2847191400,4ptp4l0-21swapper/220:47:272
2847191400,4ptp4l0-21swapper/220:08:342
2847191400,4ptp4l0-21swapper/219:40:202
2847191400,4ptp4l0-21swapper/219:16:152
2847191400,4ptp4l0-21swapper/200:22:072
2847191400,4ptp4l0-21swapper/200:16:082
2847191400,4ptp4l0-21swapper/123:10:361
2847191400,4ptp4l0-21swapper/121:15:281
2847191400,4ptp4l0-21swapper/120:45:311
2847191400,4ptp4l0-21swapper/120:15:271
2847191400,4ptp4l0-21swapper/119:35:111
2847191400,4ptp4l0-21swapper/119:15:281
2847191400,4ptp4l0-21swapper/100:38:411
2847191400,4ptp4l0-21swapper/100:05:071
2847191400,4ptp4l0-21swapper/100:05:071
2847191400,4ptp4l0-21swapper/023:46:430
2847191400,4ptp4l0-21swapper/021:23:340
2847191400,4ptp4l0-21swapper/021:16:390
2847191400,4ptp4l0-21swapper/020:21:300
2847191400,4ptp4l0-21swapper/000:35:550
2847191400,4ptp4l0-21swapper/000:15:210
2847191400,3ptp4l4813-21ntp_states21:50:231
2847191400,3ptp4l28060-21df_inode23:50:160
2847191400,3ptp4l20725-21irqstats22:25:221
2847191400,3ptp4l17569-21diskstats21:10:180
2847191400,3ptp4l14210-21apt-config00:30:011
2847191400,3ptp4l0-21swapper/123:51:351
2847191400,3ptp4l0-21swapper/023:15:250
2847191400,3ptp4l0-21swapper/021:09:370
2566299402,9cyclictest0-21swapper/100:19:391
2847191390,4ptp4l14503-21sshd21:02:401
2847191390,4ptp4l10506-21ls20:55:141
2847191390,4ptp4l0-21swapper/220:10:592
2847191390,4ptp4l0-21swapper/220:02:232
2847191390,4ptp4l0-21swapper/219:57:152
2847191390,4ptp4l0-21swapper/119:40:271
2847191390,4ptp4l0-21swapper/019:55:140
2847191390,4ptp4l0-21swapper/019:45:210
2847191390,3ptp4l0-21swapper/220:26:252
2847191390,3ptp4l0-21swapper/220:26:252
2847191390,3ptp4l0-21swapper/100:20:301
2847191390,3ptp4l0-21swapper/022:22:110
2847191380,4ptp4l0-21swapper/120:05:161
247572330,7sleep10-21swapper/119:05:281
238122225,11sleep00-21swapper/019:05:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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