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2026-06-28 - 20:50
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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 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
1614993427,4cyclictest9-21ksoftirqd/008:57:220
1614993426,5cyclictest9-21ksoftirqd/009:35:050
1617993327,4cyclictest41-21ksoftirqd/309:21:123
1617993327,4cyclictest41-21ksoftirqd/307:46:573
1617993327,3cyclictest41-21ksoftirqd/311:15:103
1617993326,4cyclictest41-21ksoftirqd/310:32:183
1617993326,4cyclictest41-21ksoftirqd/309:52:013
1617993326,4cyclictest41-21ksoftirqd/309:37:593
1617993326,4cyclictest41-21ksoftirqd/307:35:113
161699337,24cyclictest2486-21cron10:35:002
161699336,25cyclictest28744-21kworker/2:011:05:232
1616993328,3cyclictest33-21ksoftirqd/211:02:372
1616993328,3cyclictest33-21ksoftirqd/209:29:302
1616993327,4cyclictest33-21ksoftirqd/208:23:312
1616993327,4cyclictest33-21ksoftirqd/207:29:392
161699331,30cyclictest30534-21sendmail_mailqu11:30:262
1616993311,20cyclictest12799-21sh08:40:152
1616993311,19cyclictest6865-21fschecks_count07:20:152
1616993311,19cyclictest21233-21expr07:50:132
161699330,31cyclictest0-21swapper/209:45:152
1615993328,3cyclictest25-21ksoftirqd/109:50:311
1615993328,3cyclictest25-21ksoftirqd/109:15:111
1615993328,3cyclictest25-21ksoftirqd/107:32:111
1615993327,4cyclictest25-21ksoftirqd/111:39:061
1615993327,4cyclictest25-21ksoftirqd/111:27:101
1615993327,4cyclictest25-21ksoftirqd/109:56:451
1615993327,4cyclictest25-21ksoftirqd/109:41:251
1615993327,4cyclictest25-21ksoftirqd/109:10:401
1614993328,3cyclictest9-21ksoftirqd/011:55:120
1614993328,3cyclictest9-21ksoftirqd/008:48:040
1614993328,3cyclictest9-21ksoftirqd/007:20:110
1614993327,4cyclictest9-21ksoftirqd/011:16:270
1614993327,4cyclictest9-21ksoftirqd/010:19:540
1614993327,4cyclictest9-21ksoftirqd/009:44:440
1614993327,4cyclictest9-21ksoftirqd/008:53:370
1614993327,4cyclictest9-21ksoftirqd/008:24:490
1614993327,4cyclictest9-21ksoftirqd/008:19:320
1614993327,4cyclictest9-21ksoftirqd/007:15:420
1614993326,4cyclictest9-21ksoftirqd/009:25:010
1617993227,3cyclictest41-21ksoftirqd/311:40:513
1617993227,3cyclictest41-21ksoftirqd/311:34:393
1617993227,3cyclictest41-21ksoftirqd/308:12:393
1617993227,3cyclictest41-21ksoftirqd/308:12:383
1617993226,4cyclictest41-21ksoftirqd/312:14:233
1617993226,4cyclictest41-21ksoftirqd/310:52:403
1617993226,4cyclictest41-21ksoftirqd/310:01:573
1617993226,4cyclictest41-21ksoftirqd/307:51:313
1616993226,4cyclictest33-21ksoftirqd/209:36:282
1616993226,4cyclictest33-21ksoftirqd/209:34:442
1616993226,3cyclictest33-21ksoftirqd/208:58:592
161699322,27cyclictest28744-21kworker/2:011:50:142
1616993213,16cyclictest10527-21fschecks_count10:50:142
1616993211,19cyclictest10907-21kernelversion08:35:252
161699320,28cyclictest29068-21cat11:30:002
161699320,18cyclictest0-21swapper/212:00:112
1615993227,3cyclictest25-21ksoftirqd/112:05:551
1615993227,3cyclictest25-21ksoftirqd/107:10:121
1615993226,4cyclictest25-21ksoftirqd/108:25:591
1614993227,3cyclictest9-21ksoftirqd/009:30:080
1614993226,4cyclictest9-21ksoftirqd/012:17:000
1614993226,4cyclictest9-21ksoftirqd/012:03:210
1614993226,4cyclictest9-21ksoftirqd/011:31:430
1614993226,4cyclictest9-21ksoftirqd/010:40:290
1614993226,4cyclictest9-21ksoftirqd/010:35:430
1614993226,4cyclictest9-21ksoftirqd/010:35:430
1614993226,4cyclictest9-21ksoftirqd/010:10:000
1614993226,4cyclictest9-21ksoftirqd/008:25:110
1614993225,5cyclictest9-21ksoftirqd/012:29:080
1617993126,3cyclictest41-21ksoftirqd/307:18:503
1617993125,4cyclictest41-21ksoftirqd/310:56:053
1617993125,4cyclictest41-21ksoftirqd/310:24:033
1617993125,4cyclictest41-21ksoftirqd/308:26:043
1617993125,4cyclictest41-21ksoftirqd/308:21:203
161699319,19cyclictest7846-21expr08:30:152
161699311,28cyclictest23720-21kworker/2:208:15:452
161699311,27cyclictest21881-21/usr/sbin/munin09:00:302
161699311,26cyclictest2518-21gnome-shell12:37:582
161699310,28cyclictest6323-21sh11:50:012
161699310,27cyclictest89621/usr/sbin/munin11:55:112
161699310,27cyclictest20136-21sshd10:01:242
1615993126,3cyclictest25-21ksoftirqd/112:15:101
1615993126,3cyclictest25-21ksoftirqd/111:42:261
1615993126,3cyclictest25-21ksoftirqd/108:55:151
1615993126,3cyclictest23963-21uname10:10:191
1615993125,4cyclictest25-21ksoftirqd/110:00:501
1615993125,4cyclictest25-21ksoftirqd/109:29:531
1615993125,4cyclictest25-21ksoftirqd/107:26:541
1614993126,3cyclictest9-21ksoftirqd/012:33:570
1614993126,3cyclictest9-21ksoftirqd/012:33:570
1614993126,3cyclictest9-21ksoftirqd/012:21:590
1614993126,3cyclictest9-21ksoftirqd/011:35:490
1614993126,3cyclictest9-21ksoftirqd/010:22:480
1614993126,3cyclictest9-21ksoftirqd/009:04:080
1614993126,3cyclictest9-21ksoftirqd/007:14:220
1614993125,4cyclictest9-21ksoftirqd/010:47:230
1614993125,3cyclictest9-21ksoftirqd/007:40:110
1614993124,5cyclictest9-21ksoftirqd/007:49:280
139391310,1ptp4l391rcuc/311:08:463
139391310,10ptp4l401ktimersoftd/308:48:273
26382300,2sleep00-21swapper/009:25:240
1617993025,3cyclictest41-21ksoftirqd/312:27:113
1617993025,3cyclictest41-21ksoftirqd/308:35:153
1617993025,3cyclictest41-21ksoftirqd/308:19:443
1617993025,3cyclictest20862-21egrep12:20:103
1617993024,4cyclictest41-21ksoftirqd/311:55:103
1617993024,4cyclictest41-21ksoftirqd/309:06:213
161699308,19cyclictest12793-21expr10:55:112
1616993024,4cyclictest33-21ksoftirqd/208:12:122
1616993024,4cyclictest33-21ksoftirqd/208:12:122
1615993025,3cyclictest25-21ksoftirqd/111:34:061
1615993025,3cyclictest25-21ksoftirqd/110:47:331
1615993024,4cyclictest25-21ksoftirqd/108:38:461
1615993024,4cyclictest25-21ksoftirqd/107:52:451
1614993026,3cyclictest9-21ksoftirqd/009:19:550
1614993025,3cyclictest9-21ksoftirqd/009:52:210
1614993025,3cyclictest9-21ksoftirqd/008:42:030
1614993025,3cyclictest9-21ksoftirqd/008:36:230
1614993024,4cyclictest9-21ksoftirqd/009:14:150
1614993024,4cyclictest9-21ksoftirqd/008:05:230
139391300,0ptp4l401ktimersoftd/310:48:073
1616992923,4cyclictest33-21ksoftirqd/210:41:402
1616992922,4cyclictest33-21ksoftirqd/212:06:272
161699292,23cyclictest2518-21gnome-shell10:06:582
1615992924,3cyclictest25-21ksoftirqd/108:45:121
1615992924,3cyclictest25-21ksoftirqd/108:14:221
1615992924,3cyclictest25-21ksoftirqd/108:14:221
1615992924,3cyclictest25-21ksoftirqd/108:00:141
1615992923,4cyclictest25-21ksoftirqd/112:31:551
1615992923,4cyclictest25-21ksoftirqd/112:31:541
1615992923,4cyclictest25-21ksoftirqd/111:51:181
1615992923,4cyclictest25-21ksoftirqd/110:15:061
1615992923,4cyclictest25-21ksoftirqd/109:01:291
161599290,2cyclictest121rcu_preempt10:39:091
161599290,2cyclictest121rcu_preempt10:39:081
1614992924,3cyclictest9-21ksoftirqd/011:44:000
1614992924,3cyclictest9-21ksoftirqd/011:28:300
1614992924,3cyclictest9-21ksoftirqd/011:04:160
1614992923,4cyclictest9-21ksoftirqd/012:36:500
1614992923,4cyclictest9-21ksoftirqd/010:30:420
139391290,0ptp4l401ktimersoftd/311:14:423
139391290,0ptp4l401ktimersoftd/311:00:503
139391290,0ptp4l401ktimersoftd/309:58:343
139391290,0ptp4l401ktimersoftd/308:51:083
1617992823,3cyclictest41-21ksoftirqd/311:29:193
1617992823,3cyclictest41-21ksoftirqd/309:10:193
1617992823,3cyclictest41-21ksoftirqd/308:05:003
1617992822,4cyclictest41-21ksoftirqd/310:41:003
1617992822,4cyclictest41-21ksoftirqd/307:59:263
161699287,18cyclictest28205-21cpuspeed_turbos08:05:132
1616992823,3cyclictest33-21ksoftirqd/207:58:242
161699281,23cyclictest2518-21gnome-shell11:10:582
161699281,21cyclictest31549-21apt-get11:35:112
1615992823,3cyclictest25-21ksoftirqd/112:24:431
1615992823,3cyclictest25-21ksoftirqd/109:39:391
1615992822,4cyclictest25-21ksoftirqd/111:20:451
1615992822,4cyclictest25-21ksoftirqd/110:25:491
1614992824,3cyclictest9-21ksoftirqd/008:34:550
1614992823,3cyclictest9-21ksoftirqd/011:54:260
1614992823,3cyclictest9-21ksoftirqd/009:56:450
1614992823,3cyclictest9-21ksoftirqd/008:02:430
1614992823,3cyclictest9-21ksoftirqd/007:53:550
1614992822,4cyclictest9-21ksoftirqd/010:25:330
1614992822,4cyclictest9-21ksoftirqd/007:31:170
139391280,0ptp4l401ktimersoftd/309:47:483
1617992722,3cyclictest41-21ksoftirqd/312:16:263
1617992721,3cyclictest41-21ksoftirqd/311:36:093
1615992721,4cyclictest25-21ksoftirqd/111:58:281
139391270,0ptp4l401ktimersoftd/309:30:293
1615992621,3cyclictest25-21ksoftirqd/108:30:321
1617992520,3cyclictest41-21ksoftirqd/308:34:123
1614992520,3cyclictest9-21ksoftirqd/007:55:110
1614992519,4cyclictest9-21ksoftirqd/007:38:340
139391250,1ptp4l401ktimersoftd/308:40:223
1615992418,4cyclictest25-21ksoftirqd/110:44:231
139391240,10ptp4l401ktimersoftd/309:18:213
1615992317,4cyclictest25-21ksoftirqd/112:26:401
1614992318,3cyclictest9-21ksoftirqd/011:22:250
1614992317,4cyclictest9-21ksoftirqd/010:53:200
161599220,21cyclictest0-21swapper/107:20:231
1615991914,3cyclictest19091-21hddtemp_smartct07:45:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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