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2026-05-03 - 11:54
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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 Sun May 03, 2026 00:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
854821400,6sleep22442999cyclictest23:15:112
627721320,6sleep22442999cyclictest23:10:142
134491780,3ptp4l0-21swapper/020:15:070
220972630,5sleep30-21swapper/319:05:123
134491590,4ptp4l0-21swapper/000:10:160
134491580,4ptp4l0-21swapper/023:10:170
134491580,3ptp4l0-21swapper/023:40:010
134491570,4ptp4l0-21swapper/100:05:181
134491570,4ptp4l0-21swapper/023:00:240
134491570,3ptp4l0-21swapper/119:30:411
134491570,3ptp4l0-21swapper/019:15:160
134491570,3ptp4l0-21swapper/019:15:160
134491570,21ptp4l25-21ksoftirqd/120:10:161
120402570,5sleep012042-21awk21:00:250
134491560,5ptp4l0-21swapper/023:55:110
134491560,3ptp4l30225-21meminfo00:00:190
134491560,3ptp4l0-21swapper/120:15:221
134491560,16ptp4l0-21swapper/020:05:230
134491550,9ptp4l0-21swapper/223:51:122
134491550,4ptp4l30773-21taskset19:20:370
134491550,4ptp4l0-21swapper/000:31:000
134491550,12ptp4l0-21swapper/122:30:251
134491550,12ptp4l0-21swapper/023:30:150
134491540,4ptp4l0-21swapper/219:46:522
134491540,4ptp4l0-21swapper/021:30:200
134491540,4ptp4l0-21swapper/019:37:110
134491540,4ptp4l0-21swapper/019:13:560
134491540,3ptp4l0-21swapper/122:40:191
157782530,37sleep09-21ksoftirqd/022:20:180
157782530,37sleep09-21ksoftirqd/022:20:170
134691520,9getstats0-21swapper/320:45:173
134491520,5ptp4l0-21swapper/219:06:022
134491520,5ptp4l0-21swapper/119:09:561
134491520,4ptp4l0-21swapper/220:18:372
134491520,4ptp4l0-21swapper/021:55:350
134491520,4ptp4l0-21swapper/020:28:170
134491520,4ptp4l0-21swapper/000:24:360
134491520,4ptp4l0-21swapper/000:17:040
134491520,3ptp4l0-21swapper/020:50:130
134491510,5ptp4l0-21swapper/221:33:152
134491510,4ptp4l0-21swapper/223:37:202
134491510,4ptp4l0-21swapper/220:13:142
134491510,4ptp4l0-21swapper/023:22:050
134491510,4ptp4l0-21swapper/022:05:420
134491510,3ptp4l0-21swapper/023:15:380
134491500,4ptp4l0-21swapper/319:40:183
134491500,4ptp4l0-21swapper/223:09:302
134491500,4ptp4l0-21swapper/222:14:062
134491500,4ptp4l0-21swapper/221:56:502
134491500,4ptp4l0-21swapper/221:37:202
134491500,4ptp4l0-21swapper/221:29:192
134491500,4ptp4l0-21swapper/221:10:572
134491500,4ptp4l0-21swapper/220:43:582
134491500,4ptp4l0-21swapper/023:27:370
134491500,4ptp4l0-21swapper/021:27:450
134491500,4ptp4l0-21swapper/021:08:160
134491500,4ptp4l0-21swapper/000:06:480
134491500,3ptp4l0-21swapper/321:21:333
134491500,3ptp4l0-21swapper/321:21:333
134491500,3ptp4l0-21swapper/100:29:451
134491500,3ptp4l0-21swapper/020:10:380
134491490,4ptp4l0-21swapper/321:17:403
134491490,4ptp4l0-21swapper/223:48:362
134491490,4ptp4l0-21swapper/222:40:542
134491490,4ptp4l0-21swapper/122:16:331
134491490,4ptp4l0-21swapper/023:52:360
134491490,4ptp4l0-21swapper/022:47:290
134491490,4ptp4l0-21swapper/019:57:360
134491490,3ptp4l0-21swapper/023:37:570
134491490,3ptp4l0-21swapper/021:52:530
134491490,3ptp4l0-21swapper/021:52:530
2442999481,2cyclictest7347-21/usr/sbin/munin00:20:192
2442899481,46cyclictest17475-21kworker/1:220:22:581
134491480,4ptp4l0-21swapper/319:47:213
134491480,4ptp4l0-21swapper/222:15:492
134491480,4ptp4l0-21swapper/200:09:282
134491480,4ptp4l0-21swapper/021:15:030
134491480,11ptp4l0-21swapper/100:04:131
134491470,4ptp4l0-21swapper/019:53:370
134491470,3ptp4l0-21swapper/022:55:220
134491470,2ptp4l0-21swapper/020:30:170
134491460,4ptp4l0-21swapper/222:08:542
134491460,3ptp4l401ktimersoftd/320:00:153
134491460,27ptp4l0-21swapper/219:40:202
24428994514,29cyclictest0-21swapper/122:14:581
134491450,4ptp4l0-21swapper/220:21:122
134491450,4ptp4l0-21swapper/219:55:062
134491450,4ptp4l0-21swapper/022:19:450
134491450,3ptp4l0-21swapper/023:48:260
134491450,10ptp4l0-21swapper/319:58:433
2442999441,42cyclictest0-21swapper/200:29:592
2442999441,1cyclictest0-21swapper/219:30:192
134491440,9ptp4l0-21swapper/223:24:492
134491440,9ptp4l0-21swapper/220:26:362
134491440,9ptp4l0-21swapper/200:01:292
134491440,6ptp4l24392-21calmdown-rtkit19:10:011
134491440,4ptp4l26755-21apt-get19:15:122
134491440,4ptp4l26755-21apt-get19:15:122
134491440,4ptp4l0-21swapper/022:03:110
134491440,10ptp4l0-21swapper/119:19:531
134491440,10ptp4l0-21swapper/119:19:531
134491440,10ptp4l0-21swapper/019:30:140
24428994315,27cyclictest3297-21kworker/1:023:05:391
134491430,9ptp4l0-21swapper/222:33:132
134491430,4ptp4l31803-21hddtemp_smartct19:25:162
134491430,4ptp4l31305-21apt-get20:35:121
134491420,6ptp4l0-21swapper/120:05:271
134491420,5ptp4l0-21swapper/320:05:203
134491420,5ptp4l0-21swapper/019:06:580
134491420,4ptp4l5564-21users23:05:273
134491420,4ptp4l31409-21apt-get22:55:131
134491420,4ptp4l29386-21diskstats19:20:152
134491420,4ptp4l22193-21apt-get22:35:110
134491420,4ptp4l0-21swapper/319:32:373
134491420,3ptp4l9452-21ls20:55:211
134491420,3ptp4l26962-21apt-get23:55:121
134491420,3ptp4l17499-21apt-get20:05:122
134491420,3ptp4l1197-21apt-get20:40:111
134491420,3ptp4l0-21swapper/319:39:003
134491420,3ptp4l0-21swapper/121:05:141
134691410,10getstats0-21swapper/319:29:403
134691410,10getstats0-21swapper/200:34:372
134491410,9ptp4l0-21swapper/223:58:132
134491410,9ptp4l0-21swapper/222:26:362
134491410,9ptp4l0-21swapper/200:17:292
134491410,8ptp4l0-21swapper/223:44:352
134491410,5ptp4l0-21swapper/322:15:203
134491410,5ptp4l0-21swapper/221:00:242
134491410,5ptp4l0-21swapper/021:40:160
134491410,5ptp4l0-21swapper/021:24:580
134491410,5ptp4l0-21swapper/021:24:580
134491410,4ptp4l7346-21iostat_ios00:20:191
134491410,4ptp4l7179-21/usr/sbin/munin20:50:251
134491410,4ptp4l6500-21diskstats23:10:151
134491410,4ptp4l14237-21iostat_ios00:35:180
134491410,4ptp4l0-21swapper/323:20:163
134491410,4ptp4l0-21swapper/222:20:252
134491410,4ptp4l0-21swapper/222:20:242
134491410,4ptp4l0-21swapper/220:48:572
134491410,4ptp4l0-21swapper/219:51:042
134491410,4ptp4l0-21swapper/121:55:221
134491410,4ptp4l0-21swapper/121:25:101
134491410,4ptp4l0-21swapper/119:20:211
134491410,4ptp4l0-21swapper/100:10:271
134491410,4ptp4l0-21swapper/020:40:130
134491410,3ptp4l5143-21ls20:45:301
134491410,3ptp4l4696-21ntp_states20:45:250
134491410,3ptp4l29580-21iostat_ios20:30:181
134491410,3ptp4l19964-21apt-get21:20:101
134491410,3ptp4l19964-21apt-get21:20:101
134491410,3ptp4l18721-21ntp_states22:25:220
134491410,3ptp4l11630-21ls22:10:200
134491410,3ptp4l0-21swapper/320:19:523
134491410,2ptp4l8545-21apt-get23:15:121
134691400,11getstats0-21swapper/221:16:392
134691400,10getstats0-21swapper/222:56:012
134491400,9ptp4l0-21swapper/200:37:252
134491400,6ptp4l0-21swapper/122:51:191
134491400,5ptp4l0-21swapper/322:41:313
134491400,5ptp4l0-21swapper/321:26:563
134491400,5ptp4l0-21swapper/320:50:193
134491400,5ptp4l0-21swapper/123:35:201
134491400,5ptp4l0-21swapper/120:00:161
134491400,4ptp4l9242-21memory19:45:221
134491400,4ptp4l3824-21cstates19:35:131
134491400,4ptp4l0-21swapper/321:10:103
134491400,4ptp4l0-21swapper/221:05:042
134491400,4ptp4l0-21swapper/220:00:232
134491400,4ptp4l0-21swapper/123:46:271
134491400,4ptp4l0-21swapper/123:25:591
134491400,4ptp4l0-21swapper/122:45:551
134491400,4ptp4l0-21swapper/121:50:221
134491400,4ptp4l0-21swapper/121:50:221
134491400,4ptp4l0-21swapper/121:40:201
134491400,4ptp4l0-21swapper/121:30:171
134491400,4ptp4l0-21swapper/121:00:261
134491400,4ptp4l0-21swapper/119:26:031
134491400,4ptp4l0-21swapper/023:07:030
134491400,4ptp4l0-21swapper/022:30:490
134491400,4ptp4l0-21swapper/020:35:230
134491400,4ptp4l0-21swapper/020:00:520
134491400,4ptp4l0-21swapper/019:40:230
134491400,4ptp4l0-21swapper/019:25:200
134491400,4ptp4l0-21swapper/000:25:210
134491400,3ptp4l9231-21grep19:45:210
134491400,3ptp4l2776-21ls20:40:253
134491400,3ptp4l27659-21meminfo20:25:161
134491400,3ptp4l25614-21meminfo23:50:201
134491400,3ptp4l18552-21meminfo22:25:191
134491400,3ptp4l15756-21df_inode23:30:131
134491400,3ptp4l1036-21apt-get23:00:011
134491400,3ptp4l0-21swapper/123:40:111
134491400,2ptp4l14708-21strings00:35:211
134491400,2ptp4l11018-21hddtemp_smartct19:50:161
24430993934,3cyclictest41-21ksoftirqd/321:50:203
24430993934,3cyclictest41-21ksoftirqd/321:50:203
24430993932,4cyclictest41-21ksoftirqd/300:06:143
134491390,5ptp4l0-21swapper/322:29:283
134491390,5ptp4l0-21swapper/222:46:102
134491390,5ptp4l0-21swapper/123:20:121
134491390,4ptp4l23526-21mailstats22:35:261
134491390,4ptp4l15726-21fschecks_time22:20:161
134491390,4ptp4l15726-21fschecks_time22:20:161
134491390,4ptp4l0-21swapper/323:30:493
134491390,4ptp4l0-21swapper/322:58:193
134491390,4ptp4l0-21swapper/321:30:153
134491390,4ptp4l0-21swapper/320:39:473
134491390,4ptp4l0-21swapper/320:26:063
134491390,4ptp4l0-21swapper/320:11:103
134491390,4ptp4l0-21swapper/319:50:173
134491390,4ptp4l0-21swapper/319:24:043
134491390,4ptp4l0-21swapper/300:27:433
134491390,4ptp4l0-21swapper/300:00:213
134491390,4ptp4l0-21swapper/223:30:442
134491390,4ptp4l0-21swapper/223:02:202
134491390,4ptp4l0-21swapper/222:01:142
134491390,4ptp4l0-21swapper/221:45:052
134491390,4ptp4l0-21swapper/221:40:132
134491390,4ptp4l0-21swapper/221:23:592
134491390,4ptp4l0-21swapper/221:23:592
134491390,4ptp4l0-21swapper/220:50:352
134491390,4ptp4l0-21swapper/220:34:432
134491390,4ptp4l0-21swapper/219:37:402
134491390,4ptp4l0-21swapper/122:00:151
134491390,4ptp4l0-21swapper/121:45:411
134491390,4ptp4l0-21swapper/119:56:371
134491390,4ptp4l0-21swapper/100:31:021
134491390,4ptp4l0-21swapper/022:50:190
134491390,4ptp4l0-21swapper/021:45:130
134491390,4ptp4l0-21swapper/021:35:120
134491390,4ptp4l0-21swapper/021:10:570
134491390,4ptp4l0-21swapper/020:55:220
134491390,3ptp4l9963-21ls22:05:271
134491390,3ptp4l31144-21cut20:35:003
134491390,3ptp4l26085-21users20:20:270
134491390,3ptp4l17647-21apt-get21:15:131
134491390,3ptp4l15913-21iostat21:10:171
134491390,3ptp4l0-21swapper/319:10:253
134491390,3ptp4l0-21swapper/222:39:452
134491390,3ptp4l0-21swapper/219:13:582
24430993834,2cyclictest41-21ksoftirqd/321:55:283
24429993833,3cyclictest33-21ksoftirqd/220:35:202
134491380,4ptp4l0-21swapper/323:50:333
134491380,4ptp4l0-21swapper/323:16:243
134491380,4ptp4l0-21swapper/323:13:353
134491380,4ptp4l0-21swapper/323:00:533
134491380,4ptp4l0-21swapper/322:53:553
134491380,4ptp4l0-21swapper/322:46:333
134491380,4ptp4l0-21swapper/322:39:203
134491380,4ptp4l0-21swapper/322:13:253
134491380,4ptp4l0-21swapper/322:01:373
134491380,4ptp4l0-21swapper/321:44:233
134491380,4ptp4l0-21swapper/321:06:063
134491380,4ptp4l0-21swapper/321:03:033
134491380,4ptp4l0-21swapper/320:55:593
134491380,4ptp4l0-21swapper/320:21:163
134491380,4ptp4l0-21swapper/300:36:013
134491380,4ptp4l0-21swapper/300:30:133
134491380,4ptp4l0-21swapper/300:10:143
134491380,4ptp4l0-21swapper/223:29:162
134491380,4ptp4l0-21swapper/222:53:102
134491380,4ptp4l0-21swapper/221:53:042
134491380,4ptp4l0-21swapper/221:53:042
134491380,4ptp4l0-21swapper/220:55:362
134491380,4ptp4l0-21swapper/200:13:122
134491380,4ptp4l0-21swapper/121:38:061
134491380,4ptp4l0-21swapper/100:15:161
134491380,4ptp4l0-21swapper/022:40:150
134491380,3ptp4l0-21swapper/321:47:053
24430993732,3cyclictest41-21ksoftirqd/300:15:193
134491370,4ptp4l0-21swapper/323:58:583
134491370,4ptp4l0-21swapper/323:47:053
134491370,4ptp4l0-21swapper/323:41:233
134491370,4ptp4l0-21swapper/323:25:143
134491370,4ptp4l0-21swapper/322:30:473
134491370,4ptp4l0-21swapper/300:23:013
134491370,3ptp4l0-21swapper/322:20:233
134491370,3ptp4l0-21swapper/322:20:233
134491370,3ptp4l0-21swapper/322:06:413
134491370,3ptp4l0-21swapper/119:40:141
134491360,4ptp4l0-21swapper/323:35:123
134491360,4ptp4l0-21swapper/319:19:303
134491360,4ptp4l0-21swapper/319:19:303
134491350,3ptp4l0-21swapper/321:37:563
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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