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2026-06-28 - 15:27
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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 100 highest latencies:
System rackdslot3.osadl.org (updated Sun Jun 28, 2026 12:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491210175,23phc2sys0-21swapper/307:05:373
10992205170,24sleep20-21swapper/207:07:292
12902204171,22sleep10-21swapper/107:09:541
10652204171,22sleep00-21swapper/007:07:030
2937821410,4sleep2161699cyclictest09:15:142
139391830,2ptp4l391rcuc/307:40:183
139391760,1ptp4l4430-21cstates11:45:143
161699664,22cyclictest26633-21latency_hist11:25:002
161699590,24cyclictest9265-21sed10:45:262
161699590,23cyclictest25453-21dpkg10:15:012
161699590,22cyclictest3299-21sed07:10:272
159382590,4sleep10-21swapper/111:00:191
161699580,31cyclictest17433-21grep07:40:232
161699580,23cyclictest5579-21timerandwakeup07:15:262
134491580,5getstats161799cyclictest07:26:053
161699561,19cyclictest0-21swapper/212:20:252
139391550,1ptp4l401ktimersoftd/310:09:043
161699530,26cyclictest24714-21sort09:05:162
168902520,2sleep00-21swapper/012:10:190
161699520,23cyclictest207-21systemd-journal08:45:252
161699510,24cyclictest17149-21missed_timers12:10:212
161699500,24cyclictest3267-21sed11:40:252
161699500,22cyclictest23388-21df_abs10:10:132
139391500,1ptp4l401ktimersoftd/312:02:023
161699492,44cyclictest15295-21grep07:35:252
161699491,24cyclictest24819-21sed12:25:292
161699490,22cyclictest0-21swapper/208:50:242
1614994741,3cyclictest21823-21latency_hist11:15:010
1616994539,4cyclictest13371-21cron07:34:592
139391440,0ptp4l401ktimersoftd/310:37:013
139391440,0ptp4l401ktimersoftd/310:37:003
1617994235,4cyclictest25172-21perf10:15:013
161699420,24cyclictest3352-21cat10:35:172
161699420,24cyclictest3352-21cat10:35:172
139391420,0ptp4l401ktimersoftd/310:29:013
57898410,9rtkit-daemon0-21swapper/010:02:040
161699410,31cyclictest22652-21cat11:15:162
1394914032,3phc2sys0-21swapper/307:10:003
1617993930,5cyclictest41-21ksoftirqd/312:05:133
161699381,24cyclictest338-21sensors09:20:232
1617993732,3cyclictest24030-21basename09:04:593
1617993731,3cyclictest207-21systemd-journal08:05:043
161799371,2cyclictest121rcu_preempt07:20:133
161699377,27cyclictest14952-21sensors_temp09:50:242
1615993731,4cyclictest25-21ksoftirqd/111:09:501
1614993731,3cyclictest9-21ksoftirqd/009:50:000
1614993730,4cyclictest9-21ksoftirqd/009:05:340
1617993631,3cyclictest41-21ksoftirqd/311:20:463
161699360,33cyclictest17996-1kworker/2:1H10:25:002
161699360,22cyclictest5553-21df_abs08:25:152
1615993631,3cyclictest25-21ksoftirqd/108:55:011
1615993630,4cyclictest25-21ksoftirqd/109:47:271
1615993630,4cyclictest25-21ksoftirqd/107:56:551
1617993529,4cyclictest41-21ksoftirqd/309:27:183
1617993528,4cyclictest41-21ksoftirqd/310:19:533
1616993529,4cyclictest33-21ksoftirqd/212:30:592
1616993529,4cyclictest33-21ksoftirqd/212:30:592
1616993512,21cyclictest28833-21sed09:15:002
161699351,19cyclictest0-21swapper/212:15:202
161699350,22cyclictest16864-21latency09:55:212
1615993530,3cyclictest25-21ksoftirqd/110:07:051
1615993530,3cyclictest25-21ksoftirqd/109:34:021
1615993529,4cyclictest25-21ksoftirqd/112:37:391
1615993529,4cyclictest25-21ksoftirqd/110:56:231
1615993529,4cyclictest25-21ksoftirqd/110:51:041
1615993529,4cyclictest25-21ksoftirqd/110:31:441
1615993529,4cyclictest25-21ksoftirqd/109:07:221
1615993529,4cyclictest25-21ksoftirqd/108:09:431
1615993529,4cyclictest25-21ksoftirqd/107:43:551
1615993528,5cyclictest25-21ksoftirqd/108:21:381
1615993527,6cyclictest25-21ksoftirqd/109:25:001
1614993530,3cyclictest9-21ksoftirqd/010:15:000
1614993529,4cyclictest9-21ksoftirqd/011:45:280
1614993529,4cyclictest9-21ksoftirqd/010:58:140
1617993429,3cyclictest8662-21cron11:54:593
1617993429,3cyclictest41-21ksoftirqd/307:31:253
1617993428,4cyclictest41-21ksoftirqd/312:39:143
1617993428,4cyclictest41-21ksoftirqd/312:30:363
1617993428,4cyclictest41-21ksoftirqd/312:30:353
1617993428,4cyclictest41-21ksoftirqd/309:41:033
1617993428,4cyclictest41-21ksoftirqd/308:56:493
1616993429,3cyclictest33-21ksoftirqd/210:25:362
1616993428,4cyclictest33-21ksoftirqd/208:00:042
1616993412,19cyclictest1317-21runrttasks07:45:112
1616993410,21cyclictest9878-21gzip09:40:232
1615993430,2cyclictest29777-21sshd10:20:351
1615993429,3cyclictest25-21ksoftirqd/112:13:371
1615993429,3cyclictest25-21ksoftirqd/111:47:281
1615993429,3cyclictest25-21ksoftirqd/111:12:501
1615993429,3cyclictest25-21ksoftirqd/108:18:041
1615993428,4cyclictest25-21ksoftirqd/112:00:491
1615993428,4cyclictest25-21ksoftirqd/111:16:241
1615993428,4cyclictest25-21ksoftirqd/108:42:041
1615993428,4cyclictest25-21ksoftirqd/107:37:571
1615993428,4cyclictest25-21ksoftirqd/107:18:431
1614993428,4cyclictest9-21ksoftirqd/011:06:080
1614993428,4cyclictest9-21ksoftirqd/008:14:390
1614993428,4cyclictest9-21ksoftirqd/008:14:390
1614993428,4cyclictest9-21ksoftirqd/007:28:050
1614993427,5cyclictest9-21ksoftirqd/012:07:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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