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2025-11-21 - 10:23
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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 rackdslot1.osadl.org (updated Fri Nov 21, 2025 00:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
122042900,5sleep212205-21irqrtprio22:55:202
2847191670,4ptp4l14877-21ls20:40:290
2847191670,4ptp4l14877-21ls20:40:290
2849491650,6getstats3513-21ls19:10:010
2847191650,3ptp4l4886-21latency20:20:210
2847191620,3ptp4l0-21swapper/000:35:150
2847191610,4ptp4l15133-21chrt19:34:550
2847191590,4ptp4l0-21swapper/022:37:200
2847191590,4ptp4l0-21swapper/019:40:150
2847191590,3ptp4l0-21swapper/022:50:140
2847191590,21ptp4l17624-21seq21:55:570
2847191580,3ptp4l0-21swapper/020:50:200
2847191580,11ptp4l0-21swapper/023:39:540
2847191580,11ptp4l0-21swapper/023:39:540
379199574,15cyclictest17083-21mailstats20:45:293
2847191570,4ptp4l0-21swapper/023:00:180
2847191570,3ptp4l0-21swapper/100:30:221
2847191560,3ptp4l20525-21hddtemp_smartct19:45:160
2847191560,3ptp4l0-21swapper/119:30:151
2847191560,2ptp4l10423-21meminfo00:00:220
379199553,15cyclictest1794-21llvmpipe-121:49:593
2847191550,5ptp4l0-21swapper/000:25:120
2847191550,4ptp4l0-21swapper/122:29:491
2847191550,4ptp4l0-21swapper/021:35:330
2847191550,3ptp4l0-21swapper/119:15:161
2847191550,3ptp4l0-21swapper/023:30:000
2847191550,3ptp4l0-21swapper/020:55:310
2847191550,19ptp4l9-21ksoftirqd/023:15:120
241882550,5sleep20-21swapper/223:20:232
2847191540,4ptp4l0-21swapper/023:22:360
2847191540,3ptp4l0-21swapper/223:46:242
2847191540,3ptp4l0-21swapper/120:15:341
2847191540,3ptp4l0-21swapper/023:12:100
2847191540,3ptp4l0-21swapper/021:00:240
41798530,5rtkit-daemon2461591kworker/2:021:20:132
2847191530,4ptp4l0-21swapper/220:00:122
2847191530,4ptp4l0-21swapper/022:12:440
2847191530,3ptp4l0-21swapper/023:50:120
2847191530,3ptp4l0-21swapper/022:55:160
2847191530,11ptp4l0-21swapper/021:41:550
2847191520,5ptp4l0-21swapper/121:47:081
2847191520,5ptp4l0-21swapper/021:50:130
2847191520,4ptp4l0-21swapper/222:05:172
2847191520,4ptp4l0-21swapper/220:25:392
2847191520,4ptp4l0-21swapper/119:06:431
2847191520,4ptp4l0-21swapper/022:45:060
2847191520,4ptp4l0-21swapper/022:09:010
2847191520,4ptp4l0-21swapper/020:49:110
2847191520,4ptp4l0-21swapper/019:56:040
2847191520,3ptp4l0-21swapper/021:25:180
2847191510,4ptp4l0-21swapper/220:32:572
2847191510,4ptp4l0-21swapper/123:49:081
2847191510,4ptp4l0-21swapper/119:52:061
2847191510,4ptp4l0-21swapper/023:07:480
2847191510,12ptp4l0-21swapper/020:37:410
2847191510,12ptp4l0-21swapper/020:37:410
2847191500,8ptp4l0-21swapper/019:28:150
2847191500,4ptp4l0-21swapper/021:12:310
2847191500,4ptp4l0-21swapper/020:27:010
2847191500,4ptp4l0-21swapper/020:16:280
2847191500,3ptp4l0-21swapper/023:56:380
379199494,13cyclictest0-21swapper/319:35:173
379199491,10cyclictest0-21swapper/300:05:253
2847191490,4ptp4l0-21swapper/022:22:020
2847191490,3ptp4l0-21swapper/021:17:360
2847191480,4ptp4l0-21swapper/222:32:162
2847191480,4ptp4l0-21swapper/019:37:370
2847191480,3ptp4l0-21swapper/000:35:000
2847191470,4ptp4l0-21swapper/121:24:071
2847191470,4ptp4l0-21swapper/120:09:451
2847191470,3ptp4l0-21swapper/000:17:080
379199463,16cyclictest23328-21fschecks_time22:10:233
379199458,7cyclictest0-21swapper/300:00:193
379199452,10cyclictest0-21swapper/320:20:013
2847191450,9ptp4l0-21swapper/200:03:002
2847191450,4ptp4l0-21swapper/220:06:552
2847191450,4ptp4l0-21swapper/021:07:130
2847191450,10ptp4l0-21swapper/000:06:000
379199447,7cyclictest0-21swapper/322:30:193
379199444,12cyclictest0-21swapper/320:29:143
379199442,6cyclictest0-21swapper/319:31:003
2847191440,9ptp4l0-21swapper/221:29:432
2847191440,9ptp4l0-21swapper/219:23:182
2847191440,9ptp4l0-21swapper/200:20:502
2847191440,5ptp4l30211-21apt-get23:35:163
2847191440,5ptp4l30211-21apt-get23:35:163
2847191440,5ptp4l0-21swapper/120:40:211
2847191440,5ptp4l0-21swapper/120:40:211
2847191440,4ptp4l27044-21apt-get20:00:133
2847191440,4ptp4l0-21swapper/022:27:080
2847191440,4ptp4l0-21swapper/000:14:340
2847191440,3ptp4l20935-21apt-get23:15:121
2847191440,14ptp4l25-21ksoftirqd/123:38:421
2847191440,14ptp4l25-21ksoftirqd/123:38:421
379199435,7cyclictest0-21swapper/300:33:123
379199431,14cyclictest0-21swapper/322:40:333
2847191430,9ptp4l0-21swapper/220:58:482
2847191430,8ptp4l0-21swapper/219:44:322
2847191430,8ptp4l0-21swapper/200:29:042
2847191430,5ptp4l5135-21df_inode23:50:161
2847191430,4ptp4l0-21swapper/020:01:210
2847191430,3ptp4l27549-21apt-get22:20:161
2847191430,3ptp4l0-21swapper/022:15:160
2847191430,14ptp4l25-21ksoftirqd/100:04:211
379199428,6cyclictest0-21swapper/322:05:303
379099422,38cyclictest0-21swapper/200:35:302
2847191420,9ptp4l0-21swapper/223:06:442
2847191420,8ptp4l0-21swapper/223:03:422
2847191420,8ptp4l0-21swapper/221:18:012
2847191420,5ptp4l9310-21apt-get22:50:141
2847191420,5ptp4l0-21swapper/123:05:161
2847191420,4ptp4l8128-21ntp_states22:45:242
2847191420,4ptp4l7132-21apt-get23:55:141
2847191420,4ptp4l0-21swapper/100:19:231
2847191420,4ptp4l0-21swapper/022:01:160
2847191420,4ptp4l0-21swapper/021:34:250
2847191420,3ptp4l2502-21apt-get23:45:120
2847191420,3ptp4l20440-21apt-get20:55:191
2847191420,3ptp4l0-21swapper/123:20:311
2847191420,2ptp4l10101-21ntpq21:40:241
379199418,6cyclictest0-21swapper/323:45:173
379199418,6cyclictest0-21swapper/319:40:193
379199416,16cyclictest8799-21/usr/sbin/munin20:30:253
379199412,5cyclictest0-21swapper/321:07:323
2847191410,8ptp4l0-21swapper/223:40:382
2847191410,8ptp4l0-21swapper/223:40:382
2847191410,8ptp4l0-21swapper/220:21:502
2847191410,7ptp4l0-21swapper/122:01:161
2847191410,5ptp4l31674-21apt-get20:10:171
2847191410,4ptp4l9313-21irqstats19:20:171
2847191410,4ptp4l9020-21df20:30:201
2847191410,4ptp4l5008-21diskstats22:40:160
2847191410,4ptp4l28680-21ntp_states22:20:262
2847191410,4ptp4l21762-21users19:45:271
2847191410,4ptp4l19748-21ntp_states23:10:232
2847191410,4ptp4l18031-21df_inode19:40:111
2847191410,4ptp4l1073-21meminfo23:40:220
2847191410,4ptp4l1073-21meminfo23:40:210
2847191410,4ptp4l0-21swapper/323:50:303
2847191410,4ptp4l0-21swapper/321:51:163
2847191410,4ptp4l0-21swapper/221:04:392
2847191410,4ptp4l0-21swapper/122:55:151
2847191410,4ptp4l0-21swapper/122:35:021
2847191410,4ptp4l0-21swapper/121:15:301
2847191410,4ptp4l0-21swapper/020:08:230
2847191410,3ptp4l0-21swapper/222:17:342
379199404,10cyclictest0-21swapper/323:12:573
379199402,9cyclictest3884-21sshd21:27:353
379199401,9cyclictest17615-21sed00:15:243
379199400,11cyclictest12518-21latency22:55:213
2847191400,5ptp4l0-21swapper/223:35:162
2847191400,5ptp4l0-21swapper/223:35:162
2847191400,5ptp4l0-21swapper/219:50:222
2847191400,5ptp4l0-21swapper/219:46:372
2847191400,5ptp4l0-21swapper/123:25:211
2847191400,5ptp4l0-21swapper/122:40:151
2847191400,5ptp4l0-21swapper/119:10:131
2847191400,4ptp4l8779-21diskstats19:20:140
2847191400,4ptp4l332-21ntp_states20:10:270
2847191400,4ptp4l20908-21diskstats22:05:161
2847191400,4ptp4l0-21swapper/323:25:463
2847191400,4ptp4l0-21swapper/223:25:102
2847191400,4ptp4l0-21swapper/223:15:082
2847191400,4ptp4l0-21swapper/222:40:202
2847191400,4ptp4l0-21swapper/221:39:262
2847191400,4ptp4l0-21swapper/220:46:422
2847191400,4ptp4l0-21swapper/220:42:182
2847191400,4ptp4l0-21swapper/220:42:182
2847191400,4ptp4l0-21swapper/220:16:022
2847191400,4ptp4l0-21swapper/219:26:442
2847191400,4ptp4l0-21swapper/200:30:062
2847191400,4ptp4l0-21swapper/200:05:062
2847191400,4ptp4l0-21swapper/123:30:121
2847191400,4ptp4l0-21swapper/123:10:141
2847191400,4ptp4l0-21swapper/122:45:231
2847191400,4ptp4l0-21swapper/121:25:141
2847191400,4ptp4l0-21swapper/119:25:181
2847191400,4ptp4l0-21swapper/021:48:260
2847191400,4ptp4l0-21swapper/019:53:010
2847191400,3ptp4l6132-21apt-get19:15:120
2847191400,3ptp4l5278-21ls21:30:231
2847191400,3ptp4l32494-21diskstats22:30:160
2847191400,3ptp4l27889-21apt-get23:30:120
379199395,5cyclictest0-21swapper/323:30:153
379199391,11cyclictest0-21swapper/319:45:493
2847191390,5ptp4l0-21swapper/322:20:273
2847191390,4ptp4l0-21swapper/323:43:003
2847191390,4ptp4l0-21swapper/323:43:003
2847191390,4ptp4l0-21swapper/323:03:483
2847191390,4ptp4l0-21swapper/322:51:133
2847191390,4ptp4l0-21swapper/321:41:453
2847191390,4ptp4l0-21swapper/320:43:463
2847191390,4ptp4l0-21swapper/320:43:463
2847191390,4ptp4l0-21swapper/223:50:422
2847191390,4ptp4l0-21swapper/222:53:422
2847191390,4ptp4l0-21swapper/222:29:312
2847191390,4ptp4l0-21swapper/222:00:342
2847191390,4ptp4l0-21swapper/221:55:442
2847191390,4ptp4l0-21swapper/221:50:562
2847191390,4ptp4l0-21swapper/221:33:032
2847191390,4ptp4l0-21swapper/221:07:282
2847191390,4ptp4l0-21swapper/220:50:432
2847191390,4ptp4l0-21swapper/220:36:092
2847191390,4ptp4l0-21swapper/220:36:092
2847191390,4ptp4l0-21swapper/220:13:502
2847191390,4ptp4l0-21swapper/219:56:142
2847191390,4ptp4l0-21swapper/219:38:042
2847191390,4ptp4l0-21swapper/219:30:402
2847191390,4ptp4l0-21swapper/219:12:582
2847191390,4ptp4l0-21swapper/200:16:462
2847191390,4ptp4l0-21swapper/123:04:141
2847191390,4ptp4l0-21swapper/122:12:321
2847191390,4ptp4l0-21swapper/121:13:571
2847191390,4ptp4l0-21swapper/121:00:191
2847191390,4ptp4l0-21swapper/120:53:241
2847191390,4ptp4l0-21swapper/120:49:111
2847191390,4ptp4l0-21swapper/120:25:281
2847191390,4ptp4l0-21swapper/120:20:141
2847191390,4ptp4l0-21swapper/119:55:141
2847191390,4ptp4l0-21swapper/119:35:201
2847191390,4ptp4l0-21swapper/100:10:251
2847191390,4ptp4l0-21swapper/021:23:120
2847191390,4ptp4l0-21swapper/019:10:120
2847191390,4ptp4l0-21swapper/000:24:450
2847191390,3ptp4l9928-21meminfo21:40:202
2847191390,3ptp4l26509-21ls21:05:271
2847191390,3ptp4l19781-21irqstats00:20:201
2847191390,3ptp4l16330-21perl21:55:191
2847191390,3ptp4l1239-21ntp_states23:40:241
2847191390,3ptp4l1239-21ntp_states23:40:241
2847191390,3ptp4l0-21swapper/320:13:153
2847191390,3ptp4l0-21swapper/223:31:472
2847191390,3ptp4l0-21swapper/122:15:201
2847191390,3ptp4l0-21swapper/121:38:251
2847191380,4ptp4l0-21swapper/323:57:073
2847191380,4ptp4l0-21swapper/322:45:273
2847191380,4ptp4l0-21swapper/322:26:273
2847191380,4ptp4l0-21swapper/321:55:443
2847191380,4ptp4l0-21swapper/321:36:373
2847191380,4ptp4l0-21swapper/320:52:083
2847191380,4ptp4l0-21swapper/319:58:173
2847191380,4ptp4l0-21swapper/319:27:093
2847191380,4ptp4l0-21swapper/319:11:063
2847191380,4ptp4l0-21swapper/300:36:323
2847191380,4ptp4l0-21swapper/300:27:063
2847191380,4ptp4l0-21swapper/222:35:562
2847191380,4ptp4l0-21swapper/222:11:062
2847191380,4ptp4l0-21swapper/200:10:132
2847191380,4ptp4l0-21swapper/120:37:301
2847191380,4ptp4l0-21swapper/120:37:301
2847191380,4ptp4l0-21swapper/120:01:531
2847191380,4ptp4l0-21swapper/100:35:201
2847191380,4ptp4l0-21swapper/020:30:270
2847191380,3ptp4l0-21swapper/323:22:183
2847191380,3ptp4l0-21swapper/323:19:043
2847191380,3ptp4l0-21swapper/322:16:353
2847191380,3ptp4l0-21swapper/321:10:113
2847191380,3ptp4l0-21swapper/320:05:233
2847191380,3ptp4l0-21swapper/221:10:082
2847191380,3ptp4l0-21swapper/219:15:502
2847191380,3ptp4l0-21swapper/121:51:571
2847191380,3ptp4l0-21swapper/100:27:021
2847191380,3ptp4l0-21swapper/100:05:441
41798370,4rtkit-daemon0-21swapper/321:21:583
2847191370,5ptp4l0-21swapper/319:52:093
2847191370,4ptp4l0-21swapper/322:36:553
2847191370,4ptp4l0-21swapper/320:36:423
2847191370,4ptp4l0-21swapper/320:36:423
2847191370,4ptp4l0-21swapper/300:13:503
2847191370,4ptp4l0-21swapper/221:48:062
2847191370,4ptp4l0-21swapper/122:30:151
2847191370,3ptp4l0-21swapper/319:17:373
2847191370,3ptp4l0-21swapper/300:21:183
2847191370,3ptp4l0-21swapper/223:58:442
41798360,4rtkit-daemon0-21swapper/321:34:143
2847191360,4ptp4l0-21swapper/321:00:233
2847191360,3ptp4l9887-21date19:20:243
2847191360,3ptp4l0-21swapper/320:21:023
379199357,6cyclictest0-21swapper/321:15:303
379199343,5cyclictest0-21swapper/323:08:443
2847191330,3ptp4l0-21swapper/322:04:323
2847191310,3ptp4l0-21swapper/320:58:003
41798250,5rtkit-daemon0-21swapper/219:08:572
34702171,3sleep30-21swapper/319:09:403
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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