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2026-06-21 - 06:03
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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 Jun 21, 2026 00:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
134491670,6ptp4l0-21swapper/020:05:210
134491670,5ptp4l0-21swapper/322:35:113
280602660,3sleep30-21swapper/323:25:183
235922640,5sleep10-21swapper/122:05:211
134491640,18ptp4l0-21swapper/023:35:000
134491600,3ptp4l0-21swapper/023:05:160
134491590,4ptp4l0-21swapper/322:34:493
134491590,3ptp4l0-21swapper/122:10:271
134491580,4ptp4l0-21swapper/300:05:243
134491580,3ptp4l0-21swapper/220:10:202
134491570,3ptp4l0-21swapper/222:32:432
134491570,3ptp4l0-21swapper/120:40:351
134491560,5ptp4l28891-21taskset19:59:290
134491550,4ptp4l0-21swapper/219:15:012
134491550,4ptp4l0-21swapper/219:15:012
134491550,4ptp4l0-21swapper/020:21:070
134491550,3ptp4l0-21swapper/322:50:153
134491550,3ptp4l0-21swapper/223:15:252
134491540,5ptp4l0-21swapper/220:55:402
134491540,4ptp4l0-21swapper/200:30:582
134491540,4ptp4l0-21swapper/120:45:121
134491540,3ptp4l0-21swapper/220:35:312
134491530,4ptp4l0-21swapper/222:10:402
134491530,3ptp4l0-21swapper/023:20:180
134491530,3ptp4l0-21swapper/023:20:180
134491520,4ptp4l0-21swapper/223:25:102
134491520,4ptp4l0-21swapper/022:18:360
134491520,3ptp4l0-21swapper/322:21:083
134491520,3ptp4l0-21swapper/120:18:121
134491510,9ptp4l5213-21users19:05:290
134491510,4ptp4l0-21swapper/319:11:093
134491510,4ptp4l0-21swapper/300:27:233
134491510,4ptp4l0-21swapper/300:19:023
134491510,4ptp4l0-21swapper/123:36:351
134491510,4ptp4l0-21swapper/019:32:030
134491510,4ptp4l0-21swapper/000:39:410
134491510,4ptp4l0-21swapper/000:32:210
134491510,3ptp4l0-21swapper/120:23:091
134491510,3ptp4l0-21swapper/119:57:271
134491510,11ptp4l0-21swapper/121:43:301
5877995027,15cyclictest33-21ksoftirqd/219:35:202
5875995034,7cyclictest9-21ksoftirqd/000:00:000
134491500,4ptp4l0-21swapper/323:30:163
134491500,4ptp4l0-21swapper/319:27:143
134491500,4ptp4l0-21swapper/122:46:261
134491500,4ptp4l0-21swapper/023:47:380
134491500,4ptp4l0-21swapper/022:02:190
134491500,4ptp4l0-21swapper/020:00:110
134491500,4ptp4l0-21swapper/020:00:110
134491500,4ptp4l0-21swapper/019:54:360
134491500,3ptp4l0-21swapper/322:55:193
134491500,3ptp4l0-21swapper/319:42:033
134491500,3ptp4l0-21swapper/100:23:021
134491500,3ptp4l0-21swapper/100:23:021
134491500,3ptp4l0-21swapper/022:48:200
134491500,13ptp4l5254-21taskset19:05:511
134491490,4ptp4l0-21swapper/320:46:543
134491490,4ptp4l0-21swapper/220:02:002
134491490,4ptp4l0-21swapper/220:02:002
134491490,4ptp4l0-21swapper/219:34:422
134491490,4ptp4l0-21swapper/123:18:591
134491490,4ptp4l0-21swapper/120:08:141
134491490,4ptp4l0-21swapper/021:30:470
134491490,3ptp4l0-21swapper/219:56:032
134491490,3ptp4l0-21swapper/121:55:581
134491490,3ptp4l0-21swapper/121:19:301
134491490,3ptp4l0-21swapper/119:45:411
134491490,12ptp4l0-21swapper/120:13:101
134491490,11ptp4l0-21swapper/222:23:452
134491490,10ptp4l0-21swapper/323:01:373
134491480,4ptp4l0-21swapper/319:47:103
134491480,4ptp4l0-21swapper/319:23:353
134491480,4ptp4l0-21swapper/223:37:482
134491480,4ptp4l0-21swapper/123:04:101
134491480,4ptp4l0-21swapper/122:57:521
134491480,4ptp4l0-21swapper/121:52:111
134491480,4ptp4l0-21swapper/121:46:081
134491480,4ptp4l0-21swapper/120:57:541
134491480,4ptp4l0-21swapper/119:21:071
134491480,4ptp4l0-21swapper/022:56:360
134491480,3ptp4l0-21swapper/319:55:453
134491480,3ptp4l0-21swapper/221:06:422
5877994731,7cyclictest33-21ksoftirqd/222:02:042
5876994712,3cyclictest25-21ksoftirqd/119:54:591
5875994731,8cyclictest9-21ksoftirqd/020:55:010
5875994731,8cyclictest9-21ksoftirqd/020:55:000
134491470,4ptp4l0-21swapper/323:13:173
134491470,4ptp4l0-21swapper/320:40:283
134491470,4ptp4l0-21swapper/319:17:313
134491470,4ptp4l0-21swapper/319:17:303
134491470,4ptp4l0-21swapper/200:25:422
134491470,4ptp4l0-21swapper/121:35:371
134491470,4ptp4l0-21swapper/021:58:360
134491470,4ptp4l0-21swapper/020:40:010
134491470,4ptp4l0-21swapper/019:19:270
134491470,4ptp4l0-21swapper/019:19:270
134491470,3ptp4l587699cyclictest20:28:431
134491470,3ptp4l0-21swapper/322:43:583
134491470,3ptp4l0-21swapper/322:19:583
134491470,3ptp4l0-21swapper/123:27:351
134491470,3ptp4l0-21swapper/119:38:231
134491470,3ptp4l0-21swapper/019:36:570
5877994633,11cyclictest33-21ksoftirqd/200:15:002
134491460,4ptp4l0-21swapper/320:10:403
134491460,4ptp4l0-21swapper/100:36:171
134491460,3ptp4l0-21swapper/221:18:112
5877994527,9cyclictest33-21ksoftirqd/220:40:242
5877994527,9cyclictest33-21ksoftirqd/220:20:162
5877994527,9cyclictest33-21ksoftirqd/219:50:192
5877994526,9cyclictest33-21ksoftirqd/222:35:122
587799452,3cyclictest121rcu_preempt22:55:232
587799451,3cyclictest121rcu_preempt23:05:452
134491450,9ptp4l0-21swapper/000:20:050
134491450,9ptp4l0-21swapper/000:20:050
134491450,4ptp4l17469-21apt-get19:35:123
134491450,4ptp4l0-21swapper/323:43:583
134491450,4ptp4l0-21swapper/120:04:301
134491450,4ptp4l0-21swapper/120:04:291
134491450,4ptp4l0-21swapper/020:14:340
134491450,3ptp4l0-21swapper/321:05:233
134491450,3ptp4l0-21swapper/121:13:031
134491450,3ptp4l0-21swapper/021:09:140
5877994438,3cyclictest33-21ksoftirqd/223:30:232
5877994427,9cyclictest33-21ksoftirqd/220:50:182
5877994427,9cyclictest33-21ksoftirqd/220:50:182
5877994427,9cyclictest33-21ksoftirqd/220:30:172
587699443,3cyclictest121rcu_preempt23:45:271
5875994411,3cyclictest30424-21kworker/0:219:41:140
134491440,9ptp4l0-21swapper/320:35:003
134491440,4ptp4l5905-21apt-get19:10:132
134491440,3ptp4l0-21swapper/322:07:173
134491440,3ptp4l0-21swapper/321:30:543
134491440,2ptp4l0-21swapper/019:21:590
5877994334,6cyclictest33-21ksoftirqd/220:19:452
5877994327,9cyclictest33-21ksoftirqd/221:30:192
587799430,2cyclictest121rcu_preempt21:00:182
134491430,9ptp4l0-21swapper/321:54:203
134491430,9ptp4l0-21swapper/321:27:263
134491430,5ptp4l0-21swapper/320:05:103
134491430,4ptp4l31503-21apt-get20:05:112
134491430,4ptp4l0-21swapper/321:40:503
134491430,4ptp4l0-21swapper/223:00:582
134491430,3ptp4l0-21swapper/123:31:171
134491430,3ptp4l0-21swapper/100:29:551
134491430,3ptp4l0-21swapper/022:08:240
587799427,5cyclictest33-21ksoftirqd/223:56:022
5877994229,5cyclictest33-21ksoftirqd/222:44:592
5877994225,9cyclictest33-21ksoftirqd/200:05:252
587699423,4cyclictest25-21ksoftirqd/119:28:351
5875994227,4cyclictest9-21ksoftirqd/021:35:230
134491420,9ptp4l0-21swapper/321:17:283
134491420,8ptp4l31241-21cut21:15:000
134491420,6ptp4l21069-21/usr/sbin/munin19:40:201
134491420,5ptp4l2158-21df22:30:140
134491420,5ptp4l12573-21users21:40:290
134491420,5ptp4l0-21swapper/100:00:251
134491420,4ptp4l6314-21apt-get23:50:032
134491420,4ptp4l24978-21hddtemp_smartct21:00:150
134491420,4ptp4l2318-21gnome-shell00:26:580
134491420,4ptp4l1896-21apt-get23:40:121
134491420,4ptp4l11213-21apt-get22:50:132
134491420,4ptp4l0-21swapper/321:47:123
134491420,4ptp4l0-21swapper/321:10:303
134491420,3ptp4l11381-21apt-get00:00:110
134491420,3ptp4l0-21swapper/221:21:532
5877994136,3cyclictest33-21ksoftirqd/222:27:582
5877994116,3cyclictest33-21ksoftirqd/200:35:132
5877994113,6cyclictest33-21ksoftirqd/221:25:302
134491410,9ptp4l0-21swapper/321:04:543
134491410,6ptp4l21163-21phc2sys19:40:232
134491410,5ptp4l0-21swapper/300:30:033
134491410,5ptp4l0-21swapper/100:34:581
134491410,5ptp4l0-21swapper/023:35:260
134491410,4ptp4l8682-21df_inode20:25:153
134491410,4ptp4l25696-21iostat22:10:180
134491410,4ptp4l21417-21meminfo23:10:172
134491410,4ptp4l1782-21df21:20:150
134491410,4ptp4l16130-21perl21:50:172
134491410,4ptp4l0-21swapper/323:05:213
134491410,4ptp4l0-21swapper/321:20:283
134491410,4ptp4l0-21swapper/121:25:191
134491410,4ptp4l0-21swapper/000:15:190
134491410,4ptp4l0-21swapper/000:10:260
134491410,3ptp4l587799cyclictest19:46:412
134491410,3ptp4l4776-21irqstats21:25:210
134491410,3ptp4l25089-21apt-get23:20:112
134491410,3ptp4l25089-21apt-get23:20:112
134491410,3ptp4l16008-21df_inode21:50:160
5877994035,3cyclictest33-21ksoftirqd/219:27:592
5877994022,7cyclictest33-21ksoftirqd/200:00:132
587799400,2cyclictest121rcu_preempt22:48:542
5876994036,3cyclictest25-21ksoftirqd/123:15:011
46198400,9rtkit-daemon0-21swapper/320:58:443
46198400,10rtkit-daemon0-21swapper/320:02:283
46198400,10rtkit-daemon0-21swapper/320:02:283
134491400,9ptp4l0-21swapper/300:00:313
134491400,5ptp4l7730-21ntp_states22:40:231
134491400,5ptp4l587799cyclictest00:20:172
134491400,5ptp4l587799cyclictest00:20:172
134491400,5ptp4l31585-21sshd22:22:231
134491400,5ptp4l0-21swapper/323:50:023
134491400,5ptp4l0-21swapper/319:31:083
134491400,5ptp4l0-21swapper/120:50:391
134491400,5ptp4l0-21swapper/120:50:391
134491400,5ptp4l0-21swapper/023:01:050
134491400,5ptp4l0-21swapper/020:15:130
134491400,4ptp4l9277-21/usr/sbin/munin19:15:211
134491400,4ptp4l9277-21/usr/sbin/munin19:15:211
134491400,4ptp4l7065-21df_inode23:50:150
134491400,4ptp4l6650-21iostat20:20:183
134491400,4ptp4l17942-21df_inode20:45:150
134491400,4ptp4l13980-21iostat21:45:192
134491400,4ptp4l0-21swapper/300:37:583
134491400,4ptp4l0-21swapper/300:20:393
134491400,4ptp4l0-21swapper/300:20:393
134491400,4ptp4l0-21swapper/220:50:002
134491400,4ptp4l0-21swapper/100:05:121
134491400,4ptp4l0-21swapper/023:40:390
134491400,4ptp4l0-21swapper/022:25:440
134491400,4ptp4l0-21swapper/021:48:350
134491400,4ptp4l0-21swapper/020:59:050
134491400,4ptp4l0-21swapper/019:49:400
134491400,4ptp4l0-21swapper/000:07:330
134491400,3ptp4l2318-21gnome-shell21:31:581
134491400,3ptp4l22139-21users23:10:250
134491400,3ptp4l18218-21apt-get21:55:123
134491400,3ptp4l1574-21apt-get21:20:121
134491400,3ptp4l0-21swapper/022:41:220
5877993930,7cyclictest33-21ksoftirqd/221:10:442
587699397,3cyclictest121rcu_preempt22:40:001
134491390,8ptp4l0-21swapper/322:28:223
134491390,6ptp4l9744-21ps21:35:243
134491390,5ptp4l0-21swapper/322:15:003
134491390,5ptp4l0-21swapper/200:15:202
134491390,4ptp4l9304-21tune2fs22:45:163
134491390,4ptp4l5164-21sed23:45:183
134491390,4ptp4l0-21swapper/323:55:133
134491390,4ptp4l0-21swapper/323:20:213
134491390,4ptp4l0-21swapper/323:20:203
134491390,4ptp4l0-21swapper/323:15:133
134491390,4ptp4l0-21swapper/322:00:213
134491390,4ptp4l0-21swapper/320:52:063
134491390,4ptp4l0-21swapper/320:52:063
134491390,4ptp4l0-21swapper/320:15:043
134491390,4ptp4l0-21swapper/300:11:533
134491390,4ptp4l0-21swapper/222:15:272
134491390,4ptp4l0-21swapper/221:55:552
134491390,4ptp4l0-21swapper/221:41:592
134491390,4ptp4l0-21swapper/220:25:302
134491390,4ptp4l0-21swapper/123:50:121
134491390,4ptp4l0-21swapper/122:33:441
134491390,4ptp4l0-21swapper/121:05:121
134491390,4ptp4l0-21swapper/121:02:221
134491390,4ptp4l0-21swapper/120:32:141
134491390,4ptp4l0-21swapper/100:15:131
134491390,4ptp4l0-21swapper/100:12:101
134491390,4ptp4l0-21swapper/022:50:020
134491390,4ptp4l0-21swapper/022:35:330
134491390,4ptp4l0-21swapper/022:20:100
134491390,4ptp4l0-21swapper/021:15:190
134491390,4ptp4l0-21swapper/020:35:210
134491390,4ptp4l0-21swapper/020:26:540
134491390,4ptp4l0-21swapper/019:25:040
134491390,3ptp4l4232-21/usr/sbin/munin23:45:162
134491390,3ptp4l13964-21ls20:35:191
134491390,3ptp4l0-21swapper/219:20:252
134491390,3ptp4l0-21swapper/122:00:231
134491390,3ptp4l0-21swapper/023:15:220
587699386,3cyclictest121rcu_preempt19:30:181
134491380,4ptp4l0-21swapper/323:35:203
134491380,4ptp4l0-21swapper/320:30:073
134491380,4ptp4l0-21swapper/319:50:183
134491380,4ptp4l0-21swapper/223:44:092
134491380,4ptp4l0-21swapper/222:07:022
134491380,4ptp4l0-21swapper/123:55:201
134491380,4ptp4l0-21swapper/122:26:591
134491380,4ptp4l0-21swapper/122:16:431
134491380,4ptp4l0-21swapper/119:14:261
134491380,4ptp4l0-21swapper/023:25:090
134491380,4ptp4l0-21swapper/020:30:100
134491380,3ptp4l7391-21sed19:10:270
134491380,3ptp4l0-21swapper/123:24:531
134491380,3ptp4l0-21swapper/123:24:531
134491380,3ptp4l0-21swapper/122:50:511
134491370,3ptp4l0-21swapper/221:35:172
134491370,3ptp4l0-21swapper/123:05:021
48302235,10sleep20-21swapper/219:05:272
41072143,7sleep3441-21in:imuxsock19:05:193
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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