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2026-08-03 - 16:45
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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 Mon Aug 03, 2026 12:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1128599791,75cyclictest0-21swapper/210:05:292
145912650,3sleep114597-21irqrtprio08:25:181
46198640,2rtkit-daemon460-21rtkit-daemon09:43:561
268262620,7sleep11128499cyclictest10:00:231
134491600,16ptp4l0-21swapper/008:45:260
134491600,10ptp4l0-21swapper/108:20:021
140932580,5sleep00-21swapper/008:25:140
134491580,4ptp4l0-21swapper/009:35:230
134491580,4ptp4l0-21swapper/009:00:250
134491570,4ptp4l0-21swapper/312:25:173
134491570,4ptp4l0-21swapper/012:20:230
134491560,4ptp4l0-21swapper/011:16:200
134491550,4ptp4l0-21swapper/210:39:012
134491550,4ptp4l0-21swapper/110:08:161
134491540,3ptp4l0-21swapper/207:58:372
134491540,20ptp4l0-21swapper/210:21:492
11286995425,4cyclictest41-21ksoftirqd/308:45:003
11286995422,4cyclictest41-21ksoftirqd/307:22:053
11286995417,8cyclictest41-21ksoftirqd/309:05:013
134491530,5ptp4l0-21swapper/007:05:180
134491530,3ptp4l0-21swapper/311:35:213
134491530,3ptp4l0-21swapper/109:26:091
134491530,3ptp4l0-21swapper/109:26:091
134491530,3ptp4l0-21swapper/010:55:410
134491530,3ptp4l0-21swapper/010:15:120
11286995322,8cyclictest41-21ksoftirqd/310:45:213
11286995322,4cyclictest41-21ksoftirqd/310:39:343
134491520,4ptp4l0-21swapper/011:42:400
134491520,4ptp4l0-21swapper/010:40:590
134491520,3ptp4l0-21swapper/210:52:372
1128699522,4cyclictest0-21swapper/310:10:523
11286995219,4cyclictest41-21ksoftirqd/309:08:303
11286995218,4cyclictest41-21ksoftirqd/309:22:013
11286995218,15cyclictest41-21ksoftirqd/312:20:253
134491510,4ptp4l0-21swapper/008:17:150
134491510,3ptp4l0-21swapper/309:57:243
11286995123,6cyclictest41-21ksoftirqd/307:30:203
11286995119,9cyclictest41-21ksoftirqd/311:15:293
11286995118,8cyclictest41-21ksoftirqd/308:20:133
134491500,4ptp4l0-21swapper/112:02:051
134491500,4ptp4l0-21swapper/110:32:111
134491500,4ptp4l0-21swapper/009:15:500
134491500,3ptp4l0-21swapper/108:55:131
134491500,3ptp4l0-21swapper/011:37:020
11286995020,4cyclictest41-21ksoftirqd/310:45:003
11286995016,8cyclictest41-21ksoftirqd/310:30:133
1128599501,47cyclictest30786-21kworker/2:110:25:082
134491490,4ptp4l0-21swapper/311:10:023
134491490,4ptp4l0-21swapper/108:34:401
134491490,4ptp4l0-21swapper/011:20:380
134491490,3ptp4l30472-21apt-get11:20:112
134491490,3ptp4l0-21swapper/110:20:291
134491490,3ptp4l0-21swapper/107:14:311
134491490,3ptp4l0-21swapper/107:14:311
134491490,3ptp4l0-21swapper/011:51:560
134491490,3ptp4l0-21swapper/007:28:090
1128699494,3cyclictest0-21swapper/307:41:563
1128699493,4cyclictest0-21swapper/310:58:023
11286994918,9cyclictest41-21ksoftirqd/309:30:233
11286994914,10cyclictest41-21ksoftirqd/308:06:223
11286994912,10cyclictest41-21ksoftirqd/311:59:103
11286994910,8cyclictest41-21ksoftirqd/312:30:203
134491480,4ptp4l0-21swapper/011:46:590
134491480,3ptp4l0-21swapper/012:00:140
1128699489,8cyclictest41-21ksoftirqd/312:12:583
11286994818,7cyclictest41-21ksoftirqd/308:25:133
11286994817,8cyclictest41-21ksoftirqd/308:35:233
11286994817,7cyclictest41-21ksoftirqd/308:15:273
11286994817,4cyclictest41-21ksoftirqd/311:25:583
11286994813,8cyclictest41-21ksoftirqd/308:45:213
11286994810,10cyclictest41-21ksoftirqd/311:45:473
1128699480,7cyclictest0-21swapper/312:39:383
1128699480,2cyclictest121rcu_preempt10:07:593
134491470,3ptp4l0-21swapper/109:16:201
134491470,10ptp4l0-21swapper/212:36:502
1128699479,8cyclictest41-21ksoftirqd/309:13:493
1128699472,2cyclictest121rcu_preempt11:45:013
1128699472,2cyclictest121rcu_preempt11:02:593
11286994717,4cyclictest41-21ksoftirqd/309:25:133
11286994717,4cyclictest41-21ksoftirqd/309:25:133
11286994715,8cyclictest41-21ksoftirqd/308:35:003
11286994712,4cyclictest41-21ksoftirqd/312:15:283
11286994711,8cyclictest41-21ksoftirqd/307:10:133
11286994711,8cyclictest41-21ksoftirqd/307:10:133
134491460,5ptp4l0-21swapper/107:06:501
134491460,4ptp4l0-21swapper/311:54:343
134491460,4ptp4l0-21swapper/109:01:581
134491460,3ptp4l0-21swapper/009:08:410
1128699468,8cyclictest41-21ksoftirqd/309:43:503
11286994642,2cyclictest41-21ksoftirqd/309:20:003
1128699462,3cyclictest121rcu_preempt10:50:433
11286994613,4cyclictest41-21ksoftirqd/307:51:083
1128699461,2cyclictest121rcu_preempt10:26:583
1128699460,2cyclictest121rcu_preempt11:34:583
1128599460,3cyclictest24698-21ls09:55:282
134491450,4ptp4l4569-21apt-get08:05:112
134491450,4ptp4l0-21swapper/210:34:472
134491450,3ptp4l0-21swapper/307:59:313
134491450,3ptp4l0-21swapper/010:35:550
134491450,10ptp4l19235-21fschecks_count10:55:162
1128699457,10cyclictest41-21ksoftirqd/309:35:403
134491440,9ptp4l0-21swapper/010:33:370
134491440,10ptp4l0-21swapper/112:36:321
134491440,10ptp4l0-21swapper/009:33:490
11286994434,8cyclictest41-21ksoftirqd/312:05:153
11286994413,3cyclictest41-21ksoftirqd/307:20:003
46198430,4rtkit-daemon0-21swapper/209:52:182
134691430,6getstats1128599cyclictest10:41:352
134491430,5ptp4l0-21swapper/010:10:210
134491430,4ptp4l26970-21ls08:50:262
134491430,3ptp4l0-21swapper/110:19:011
134491430,10ptp4l0-21swapper/007:44:480
1128699434,7cyclictest41-21ksoftirqd/310:17:593
11286994312,7cyclictest41-21ksoftirqd/308:55:213
11286994310,7cyclictest41-21ksoftirqd/308:50:193
11286994310,6cyclictest41-21ksoftirqd/308:00:493
134491420,9ptp4l0-21swapper/212:24:412
134491420,5ptp4l29646-21ntp_states12:25:242
134491420,5ptp4l1128399cyclictest07:31:300
134491420,5ptp4l0-21swapper/207:45:122
134491420,4ptp4l27707-21apt-get07:45:133
134491420,4ptp4l25859-21apt-get11:10:122
134491420,4ptp4l14298-21apt-get10:45:122
134491420,4ptp4l0-21swapper/011:55:290
134491420,3ptp4l30003-21apt-get07:50:132
134491420,3ptp4l25172-21apt-get10:00:043
134491420,3ptp4l18585-21apt-get08:35:111
1128699428,8cyclictest41-21ksoftirqd/308:10:283
1128699428,8cyclictest41-21ksoftirqd/308:10:283
1128699425,7cyclictest41-21ksoftirqd/307:39:443
11286994211,6cyclictest41-21ksoftirqd/310:23:253
11286994210,6cyclictest41-21ksoftirqd/312:00:143
134491410,6ptp4l0-21swapper/110:40:281
134491410,5ptp4l27661-21sed07:45:002
134491410,5ptp4l20830-21/usr/sbin/munin07:30:151
134491410,5ptp4l0-21swapper/207:30:132
134491410,5ptp4l0-21swapper/107:15:251
134491410,5ptp4l0-21swapper/007:55:300
134491410,4ptp4l912-21df12:35:140
134491410,4ptp4l31673-21irqstats12:30:200
134491410,4ptp4l16296-21apt-get08:30:132
134491410,4ptp4l14007-21apt-get11:55:032
134491410,4ptp4l0-21swapper/209:05:212
134491410,4ptp4l0-21swapper/112:15:211
134491410,4ptp4l0-21swapper/110:10:041
134491410,4ptp4l0-21swapper/010:21:140
134491410,3ptp4l28464-21diskstats11:15:161
134491410,3ptp4l24434-21iostat12:15:190
134491410,3ptp4l17498-21ls07:20:292
134491410,3ptp4l11241-21apt-get08:20:040
134491410,3ptp4l0-21swapper/107:52:071
134491410,3ptp4l0-21swapper/007:10:450
134491410,3ptp4l0-21swapper/007:10:450
1128699413,7cyclictest41-21ksoftirqd/311:22:183
11286994136,3cyclictest41-21ksoftirqd/309:50:003
134491400,8ptp4l0-21swapper/009:55:410
134491400,5ptp4l433-21/usr/sbin/munin09:05:181
134491400,5ptp4l0-21swapper/211:05:172
134491400,5ptp4l0-21swapper/112:30:121
134491400,5ptp4l0-21swapper/108:41:331
134491400,4ptp4l22592-21apt-get07:35:011
134491400,4ptp4l18358-21apt08:35:010
134491400,4ptp4l0-21swapper/212:30:252
134491400,4ptp4l0-21swapper/211:25:272
134491400,4ptp4l0-21swapper/209:20:162
134491400,4ptp4l0-21swapper/111:35:131
134491400,4ptp4l0-21swapper/111:20:131
134491400,4ptp4l0-21swapper/110:35:311
134491400,4ptp4l0-21swapper/109:55:141
134491400,4ptp4l0-21swapper/109:36:081
134491400,4ptp4l0-21swapper/107:28:191
134491400,4ptp4l0-21swapper/012:14:140
134491400,4ptp4l0-21swapper/011:25:420
134491400,4ptp4l0-21swapper/010:54:190
134491400,4ptp4l0-21swapper/010:09:430
134491400,4ptp4l0-21swapper/009:45:440
134491400,4ptp4l0-21swapper/009:26:590
134491400,4ptp4l0-21swapper/009:26:590
134491400,4ptp4l0-21swapper/009:20:190
134491400,4ptp4l0-21swapper/008:07:030
134491400,4ptp4l0-21swapper/007:50:160
134491400,3ptp4l3353-21ls09:10:201
134491400,3ptp4l26669-21ntp_states08:50:231
134491400,3ptp4l15932-21apt-get07:20:141
134491400,3ptp4l0-21swapper/208:10:232
134491400,3ptp4l0-21swapper/208:10:222
134491400,3ptp4l0-21swapper/007:17:050
134491400,13ptp4l0-21swapper/108:05:501
11286994034,4cyclictest41-21ksoftirqd/309:50:263
11285994034,4cyclictest33-21ksoftirqd/210:13:562
134491390,5ptp4l27057-21swap10:00:250
134491390,5ptp4l26434-21ps11:10:191
134491390,5ptp4l17911-21sshd10:50:261
134491390,5ptp4l0-21swapper/211:44:512
134491390,5ptp4l0-21swapper/209:00:212
134491390,5ptp4l0-21swapper/208:25:242
134491390,5ptp4l0-21swapper/112:12:381
134491390,5ptp4l0-21swapper/109:49:561
134491390,5ptp4l0-21swapper/109:30:191
134491390,5ptp4l0-21swapper/007:20:170
134491390,4ptp4l9634-21apt11:45:121
134491390,4ptp4l22868-21apt-config07:35:010
134491390,4ptp4l15039-21/usr/sbin/munin07:15:282
134491390,4ptp4l0-21swapper/211:35:152
134491390,4ptp4l0-21swapper/211:15:282
134491390,4ptp4l0-21swapper/209:46:542
134491390,4ptp4l0-21swapper/208:20:142
134491390,4ptp4l0-21swapper/111:40:251
134491390,4ptp4l0-21swapper/111:00:241
134491390,4ptp4l0-21swapper/110:59:001
134491390,4ptp4l0-21swapper/109:54:161
134491390,4ptp4l0-21swapper/108:45:201
134491390,4ptp4l0-21swapper/108:15:201
134491390,4ptp4l0-21swapper/108:10:061
134491390,4ptp4l0-21swapper/108:10:061
134491390,4ptp4l0-21swapper/107:55:541
134491390,4ptp4l0-21swapper/107:48:401
134491390,4ptp4l0-21swapper/107:41:411
134491390,4ptp4l0-21swapper/012:25:220
134491390,4ptp4l0-21swapper/011:12:540
134491390,4ptp4l0-21swapper/010:45:140
134491390,4ptp4l0-21swapper/009:50:280
134491390,4ptp4l0-21swapper/009:12:160
134491390,4ptp4l0-21swapper/008:56:450
134491390,4ptp4l0-21swapper/008:51:180
134491390,4ptp4l0-21swapper/008:40:280
134491390,4ptp4l0-21swapper/008:37:040
134491390,4ptp4l0-21swapper/008:10:250
134491390,4ptp4l0-21swapper/008:10:240
134491390,3ptp4l4234-21timerwakeupswit11:30:260
134491390,3ptp4l26545-21diskstats12:20:151
134491390,3ptp4l23718-21df11:05:140
134491390,3ptp4l11625-21sshd09:30:122
134491390,3ptp4l0-21swapper/307:25:263
134491390,3ptp4l0-21swapper/209:10:272
134491390,3ptp4l0-21swapper/208:35:202
134491390,3ptp4l0-21swapper/111:50:351
134491390,3ptp4l0-21swapper/110:45:201
134491390,3ptp4l0-21swapper/008:00:110
134491390,2ptp4l0-21swapper/211:00:232
134491380,5ptp4l5455-21cut09:15:182
134491380,5ptp4l0-21swapper/112:05:131
134491380,4ptp4l0-21swapper/212:19:142
134491380,4ptp4l0-21swapper/211:50:142
134491380,4ptp4l0-21swapper/211:30:282
134491380,4ptp4l0-21swapper/210:00:012
134491380,4ptp4l0-21swapper/209:40:102
134491380,4ptp4l0-21swapper/209:25:232
134491380,4ptp4l0-21swapper/209:25:232
134491380,4ptp4l0-21swapper/208:55:292
134491380,4ptp4l0-21swapper/208:47:592
134491380,4ptp4l0-21swapper/208:44:122
134491380,4ptp4l0-21swapper/208:15:292
134491380,4ptp4l0-21swapper/207:25:192
134491380,4ptp4l0-21swapper/207:14:262
134491380,4ptp4l0-21swapper/207:14:262
134491380,4ptp4l0-21swapper/110:25:161
134491380,4ptp4l0-21swapper/109:20:241
134491380,4ptp4l0-21swapper/108:00:291
134491380,4ptp4l0-21swapper/010:25:510
134491380,3ptp4l21572-21apt-get12:10:112
134491380,3ptp4l0-21swapper/212:05:332
134491380,3ptp4l0-21swapper/212:01:242
134491380,3ptp4l0-21swapper/211:45:222
134491380,3ptp4l0-21swapper/210:18:212
134491380,3ptp4l0-21swapper/209:36:492
134491380,3ptp4l0-21swapper/207:35:272
134491380,3ptp4l0-21swapper/111:30:091
134491380,3ptp4l0-21swapper/111:25:161
134491380,3ptp4l0-21swapper/111:06:061
134491380,3ptp4l0-21swapper/012:05:220
134491380,3ptp4l0-21swapper/011:00:020
134491380,3ptp4l0-21swapper/009:40:080
134491380,3ptp4l0-21swapper/007:45:290
1128699385,6cyclictest41-21ksoftirqd/311:05:153
134491370,4ptp4l0-21swapper/112:25:291
134491370,3ptp4l0-21swapper/208:00:092
134491370,3ptp4l0-21swapper/111:58:101
137891223,12phc2sys9790-21irqstats07:05:182
106702145,5sleep30-21swapper/307:05:593
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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