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2026-08-04 - 15:39
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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 376 highest latencies:
System rackdslot1.osadl.org (updated Tue Aug 04, 2026 00:45:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
500799791,76cyclictest0-21swapper/222:35:282
500799790,2cyclictest1030-21users23:35:292
134491660,5ptp4l0-21swapper/021:10:280
265532610,5sleep10-21swapper/119:55:011
265532610,5sleep10-21swapper/119:55:011
134491610,2ptp4l0-21swapper/023:10:270
134491590,4ptp4l0-21swapper/120:55:161
134491590,4ptp4l0-21swapper/019:50:200
134491590,16ptp4l0-21swapper/023:05:140
134491580,4ptp4l0-21swapper/222:10:312
134491580,4ptp4l0-21swapper/000:30:160
134491580,3ptp4l0-21swapper/221:40:212
134491570,4ptp4l0-21swapper/323:16:343
134491570,3ptp4l0-21swapper/122:27:371
134491570,16ptp4l0-21swapper/320:06:263
134491560,3ptp4l0-21swapper/223:20:252
134491560,13ptp4l0-21swapper/319:31:563
134491550,4ptp4l0-21swapper/121:40:121
134491540,5ptp4l0-21swapper/022:57:100
134491540,3ptp4l0-21swapper/022:25:310
134491540,11ptp4l3620-21meminfo19:05:202
134491530,4ptp4l0-21swapper/122:21:461
134491530,4ptp4l0-21swapper/020:27:060
134491530,4ptp4l0-21swapper/020:21:330
134491530,3ptp4l0-21swapper/021:00:150
134491520,4ptp4l500899cyclictest19:40:183
134491520,4ptp4l0-21swapper/123:30:191
134491520,4ptp4l0-21swapper/100:05:201
134491520,4ptp4l0-21swapper/019:47:480
134491520,4ptp4l0-21swapper/019:32:260
134491520,3ptp4l0-21swapper/222:15:072
134491520,3ptp4l0-21swapper/220:50:172
134491520,3ptp4l0-21swapper/123:38:061
134491520,2ptp4l0-21swapper/222:59:542
134491520,17ptp4l0-21swapper/119:49:091
134491510,5ptp4l0-21swapper/100:24:211
134491510,4ptp4l0-21swapper/020:43:280
134491510,4ptp4l0-21swapper/020:37:040
134491500,4ptp4l0-21swapper/122:44:491
134491500,4ptp4l0-21swapper/120:42:011
134491500,4ptp4l0-21swapper/023:45:420
134491500,4ptp4l0-21swapper/020:57:260
134491500,3ptp4l0-21swapper/323:48:183
134491500,3ptp4l0-21swapper/320:35:163
134491500,3ptp4l0-21swapper/122:00:381
11162500,4sleep00-21swapper/021:20:120
5007994917,29cyclictest8872-21iostat_ios21:35:182
134491490,4ptp4l0-21swapper/322:17:503
134491490,4ptp4l0-21swapper/320:13:363
134491490,4ptp4l0-21swapper/320:03:063
134491490,4ptp4l0-21swapper/123:06:371
134491490,4ptp4l0-21swapper/122:55:561
134491490,4ptp4l0-21swapper/121:12:241
134491490,4ptp4l0-21swapper/000:14:360
134491490,3ptp4l0-21swapper/022:45:250
134491480,4ptp4l0-21swapper/220:44:472
134491480,4ptp4l0-21swapper/200:19:372
134491480,4ptp4l0-21swapper/123:56:211
134491480,4ptp4l0-21swapper/019:17:010
134491480,3ptp4l0-21swapper/323:33:263
134491480,3ptp4l0-21swapper/200:22:182
134491480,3ptp4l0-21swapper/120:01:261
134491480,3ptp4l0-21swapper/022:37:060
32442470,4sleep1241ktimersoftd/119:05:181
134491470,9ptp4l3154-21if_enp1s019:05:173
134491470,4ptp4l0-21swapper/223:19:422
134491470,4ptp4l0-21swapper/221:59:242
134491470,4ptp4l0-21swapper/121:33:121
134491470,4ptp4l0-21swapper/023:58:520
134491470,4ptp4l0-21swapper/021:19:220
134491470,3ptp4l0-21swapper/223:13:082
134491470,3ptp4l0-21swapper/022:16:450
134491470,3ptp4l0-21swapper/021:30:170
134491470,2ptp4l0-21swapper/121:05:131
134491460,4ptp4l0-21swapper/200:26:022
134491460,3ptp4l0-21swapper/322:42:403
134491460,2ptp4l0-21swapper/220:20:172
134491460,11ptp4l0-21swapper/022:30:130
5008994540,3cyclictest41-21ksoftirqd/319:20:013
5007994511,32cyclictest33-21ksoftirqd/221:00:332
5006994518,6cyclictest25-21ksoftirqd/100:33:251
134491450,9ptp4l0-21swapper/221:05:242
134491450,9ptp4l0-21swapper/219:23:292
134491450,4ptp4l0-21swapper/222:50:022
134491450,4ptp4l0-21swapper/020:00:140
134491450,3ptp4l0-21swapper/221:48:452
5006994414,3cyclictest25-21ksoftirqd/123:00:181
46198440,11rtkit-daemon0-21swapper/200:30:122
134491440,9ptp4l0-21swapper/020:52:540
134491440,5ptp4l6353-21apt-get23:50:122
134491440,5ptp4l16707-21meminfo00:10:192
134491440,5ptp4l0-21swapper/300:20:143
134491440,4ptp4l1696-21apt-get23:40:103
134491440,4ptp4l0-21swapper/123:26:511
134491440,4ptp4l0-21swapper/120:31:021
134491440,4ptp4l0-21swapper/023:27:320
134491440,3ptp4l7335-21apt-get19:15:142
134491440,3ptp4l0-21swapper/220:31:062
134491440,3ptp4l0-21swapper/021:43:490
134491440,3ptp4l0-21swapper/020:17:200
134491440,2ptp4l0-21swapper/220:19:272
134491440,12ptp4l0-21swapper/120:16:001
134491440,10ptp4l0-21swapper/323:20:223
134491440,10ptp4l0-21swapper/221:21:332
134491430,9ptp4l0-21swapper/222:09:212
134491430,9ptp4l0-21swapper/221:25:292
134491430,9ptp4l0-21swapper/220:26:392
134491430,6ptp4l0-21swapper/321:55:213
134491430,5ptp4l0-21swapper/020:10:240
134491430,4ptp4l5036-21apt-get19:10:122
134491430,4ptp4l5036-21apt-get19:10:122
134491430,3ptp4l4754-21ls19:09:590
134491430,3ptp4l0-21swapper/300:29:533
134491430,3ptp4l0-21swapper/220:04:282
134491430,3ptp4l0-21swapper/123:10:161
134491430,2ptp4l321ktimersoftd/223:05:202
134491430,10ptp4l0-21swapper/221:31:552
5007994215,26cyclictest0-21swapper/222:40:282
500699428,4cyclictest25-21ksoftirqd/119:20:011
5006994216,7cyclictest25-21ksoftirqd/100:38:501
5006994211,3cyclictest25-21ksoftirqd/100:11:171
500699420,10cyclictest25-21ksoftirqd/122:40:011
134691420,10getstats0-21swapper/223:44:552
134691420,10getstats0-21swapper/222:46:462
134691420,10getstats0-21swapper/220:48:152
134491420,9ptp4l0-21swapper/219:38:162
134491420,9ptp4l0-21swapper/023:41:070
134491420,6ptp4l0-21swapper/219:30:122
134491420,5ptp4l29297-21df22:20:130
134491420,5ptp4l28811-21apt-get23:30:032
134491420,5ptp4l13348-21hddtemp_smartct21:45:180
134491420,5ptp4l0-21swapper/322:05:143
134491420,5ptp4l0-21swapper/322:03:583
134491420,4ptp4l8267-21apt-get22:45:161
134491420,4ptp4l4053-21apt-get23:45:152
134491420,4ptp4l31323-21apt-get23:35:030
134491420,4ptp4l22432-21diskstats22:05:171
134491420,4ptp4l12162-21apt-get19:25:110
134491420,4ptp4l0-21swapper/320:40:183
134491420,4ptp4l0-21swapper/123:49:391
134491420,4ptp4l0-21swapper/120:36:411
134491420,4ptp4l0-21swapper/023:15:270
134491420,4ptp4l0-21swapper/022:51:560
134491420,4ptp4l0-21swapper/021:58:070
134491420,3ptp4l0-21swapper/222:01:312
134491420,3ptp4l0-21swapper/023:52:060
5007994135,4cyclictest33-21ksoftirqd/200:04:102
5006994135,3cyclictest25-21ksoftirqd/122:15:001
5006994133,5cyclictest25-21ksoftirqd/119:25:121
5006994110,8cyclictest25-21ksoftirqd/120:50:001
134691410,9getstats0-21swapper/219:46:342
134491410,9ptp4l0-21swapper/319:57:163
134491410,9ptp4l0-21swapper/319:57:153
134491410,9ptp4l0-21swapper/200:08:432
134491410,9ptp4l0-21swapper/020:46:260
134491410,5ptp4l0-21swapper/322:25:253
134491410,5ptp4l0-21swapper/319:45:413
134491410,5ptp4l0-21swapper/121:20:161
134491410,5ptp4l0-21swapper/120:05:141
134491410,4ptp4l6266-21df_inode22:40:140
134491410,4ptp4l27476-21df00:35:130
134491410,4ptp4l22307-21df23:15:141
134491410,4ptp4l20942-21iostat00:20:180
134491410,4ptp4l18130-21meminfo19:35:200
134491410,4ptp4l0-21swapper/119:23:141
134491410,4ptp4l0-21swapper/023:00:580
134491410,4ptp4l0-21swapper/022:00:330
134491410,4ptp4l0-21swapper/021:50:140
134491410,4ptp4l0-21swapper/021:25:000
134491410,4ptp4l0-21swapper/000:27:420
134491410,3ptp4l31271-21apt-get20:05:110
134491410,3ptp4l28913-21apt-get21:10:123
134491410,3ptp4l25029-21ls19:50:192
134491410,3ptp4l0-21swapper/022:06:080
134491410,10ptp4l0-21swapper/320:45:333
500699404,2cyclictest121rcu_preempt21:50:231
5006994035,3cyclictest25-21ksoftirqd/121:25:341
500699403,4cyclictest25-21ksoftirqd/120:25:221
134491400,5ptp4l0-21swapper/220:37:082
134491400,5ptp4l0-21swapper/021:35:590
134491400,4ptp4l30126-21ps21:10:242
134491400,4ptp4l26196-21apt-get19:55:012
134491400,4ptp4l26196-21apt-get19:55:012
134491400,4ptp4l0-21swapper/323:50:233
134491400,4ptp4l0-21swapper/323:12:543
134491400,4ptp4l0-21swapper/323:09:363
134491400,4ptp4l0-21swapper/322:50:163
134491400,4ptp4l0-21swapper/322:37:513
134491400,4ptp4l0-21swapper/321:05:553
134491400,4ptp4l0-21swapper/320:30:213
134491400,4ptp4l0-21swapper/320:25:143
134491400,4ptp4l0-21swapper/320:20:273
134491400,4ptp4l0-21swapper/319:54:593
134491400,4ptp4l0-21swapper/319:35:193
134491400,4ptp4l0-21swapper/300:10:163
134491400,4ptp4l0-21swapper/300:00:153
134491400,4ptp4l0-21swapper/222:20:442
134491400,4ptp4l0-21swapper/221:16:262
134491400,4ptp4l0-21swapper/220:58:402
134491400,4ptp4l0-21swapper/123:51:541
134491400,4ptp4l0-21swapper/122:30:591
134491400,4ptp4l0-21swapper/121:15:491
134491400,4ptp4l0-21swapper/121:00:191
134491400,4ptp4l0-21swapper/023:22:410
134491400,4ptp4l0-21swapper/021:09:170
134491400,4ptp4l0-21swapper/020:30:090
134491400,4ptp4l0-21swapper/019:55:480
134491400,4ptp4l0-21swapper/019:55:480
134491400,4ptp4l0-21swapper/000:05:200
134491400,4ptp4l0-21swapper/000:01:450
134491400,3ptp4l9867-21apt-get19:20:140
134491400,3ptp4l9592-21ls23:55:213
134491400,3ptp4l24720-21df_inode22:10:150
134491400,3ptp4l15784-21iostat_ios21:50:192
134491400,3ptp4l0-21swapper/019:43:200
134491400,1ptp4l0-21swapper/219:25:272
500699394,4cyclictest25-21ksoftirqd/120:20:231
5006993935,2cyclictest25-21ksoftirqd/100:25:171
500699393,3cyclictest121rcu_preempt21:45:221
5006993933,3cyclictest25-21ksoftirqd/122:15:251
5006993933,3cyclictest25-21ksoftirqd/119:40:171
134491390,5ptp4l18899-21taskset19:35:541
134491390,5ptp4l0-21swapper/323:00:053
134491390,5ptp4l0-21swapper/319:21:503
134491390,4ptp4l27251-21/usr/sbin/munin00:35:223
134491390,4ptp4l2564-21swap20:10:241
134491390,4ptp4l0-21swapper/323:35:173
134491390,4ptp4l0-21swapper/323:26:123
134491390,4ptp4l0-21swapper/322:20:153
134491390,4ptp4l0-21swapper/321:50:233
134491390,4ptp4l0-21swapper/321:45:223
134491390,4ptp4l0-21swapper/321:40:253
134491390,4ptp4l0-21swapper/321:35:193
134491390,4ptp4l0-21swapper/321:28:583
134491390,4ptp4l0-21swapper/321:20:143
134491390,4ptp4l0-21swapper/321:17:323
134491390,4ptp4l0-21swapper/321:02:223
134491390,4ptp4l0-21swapper/320:50:153
134491390,4ptp4l0-21swapper/320:15:243
134491390,4ptp4l0-21swapper/319:10:183
134491390,4ptp4l0-21swapper/319:10:183
134491390,4ptp4l0-21swapper/223:57:592
134491390,4ptp4l0-21swapper/223:25:522
134491390,4ptp4l0-21swapper/223:00:172
134491390,4ptp4l0-21swapper/222:33:042
134491390,4ptp4l0-21swapper/222:25:182
134491390,4ptp4l0-21swapper/220:10:202
134491390,4ptp4l0-21swapper/220:09:212
134491390,4ptp4l0-21swapper/219:40:172
134491390,4ptp4l0-21swapper/123:23:371
134491390,4ptp4l0-21swapper/121:55:561
134491390,4ptp4l0-21swapper/121:35:021
134491390,4ptp4l0-21swapper/119:52:541
134491390,4ptp4l0-21swapper/119:31:581
134491390,4ptp4l0-21swapper/119:11:221
134491390,4ptp4l0-21swapper/119:11:221
134491390,4ptp4l0-21swapper/100:15:251
134491390,4ptp4l0-21swapper/100:00:161
134491390,4ptp4l0-21swapper/023:30:470
134491390,4ptp4l0-21swapper/019:12:210
134491390,4ptp4l0-21swapper/019:12:210
134491390,3ptp4l28386-21ntp_states00:35:222
134491390,3ptp4l24971-21apt-get00:30:123
134491390,3ptp4l0-21swapper/322:30:303
134491390,3ptp4l0-21swapper/300:15:353
134491390,3ptp4l0-21swapper/122:50:591
134491390,3ptp4l0-21swapper/120:45:111
134491390,11ptp4l0-21swapper/322:55:053
134491380,4ptp4l0-21swapper/322:45:323
134491380,4ptp4l0-21swapper/321:35:013
134491380,4ptp4l0-21swapper/320:56:293
134491380,4ptp4l0-21swapper/319:28:593
134491380,4ptp4l0-21swapper/300:05:263
134491380,4ptp4l0-21swapper/000:15:270
134491380,3ptp4l0-21swapper/322:10:023
5006993731,3cyclictest25-21ksoftirqd/123:40:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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