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2026-04-16 - 16:28
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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 rackdslot3.osadl.org (updated Thu Apr 16, 2026 12:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491205170,24phc2sys0-21swapper/307:08:153
139491205170,24phc2sys0-21swapper/307:08:153
26252204171,22sleep20-21swapper/207:06:222
26252204171,22sleep20-21swapper/207:06:222
26192203170,22sleep10-21swapper/107:06:161
26192203170,22sleep10-21swapper/107:06:161
28922201168,22sleep00-21swapper/007:09:410
28922201168,22sleep00-21swapper/007:09:410
3210997510,19cyclictest13831-21date12:00:012
321099710,31cyclictest29040-21sshd11:21:252
60412550,2sleep10-21swapper/111:40:271
321099526,21cyclictest11100-21seq09:39:552
287432520,2sleep10-21swapper/110:15:151
146332510,3sleep314637-21irqrtprio12:00:183
321099463,30cyclictest0-21swapper/208:31:052
321099451,3cyclictest0-21swapper/209:59:272
321099441,3cyclictest0-21swapper/210:57:182
139391440,0ptp4l401ktimersoftd/309:39:563
139391430,0ptp4l401ktimersoftd/311:07:283
139391430,0ptp4l401ktimersoftd/307:21:003
3211994222,18cyclictest41-21ksoftirqd/309:20:203
321099429,19cyclictest14682-21seq08:39:512
321099429,19cyclictest14682-21seq08:39:502
139391410,0ptp4l401ktimersoftd/311:39:303
3211994034,4cyclictest41-21ksoftirqd/310:00:003
321099403,23cyclictest0-21swapper/212:07:322
3208993934,3cyclictest9-21ksoftirqd/008:45:010
3208993931,5cyclictest9-21ksoftirqd/008:50:130
139391380,0ptp4l401ktimersoftd/311:19:253
139391380,0ptp4l401ktimersoftd/311:19:253
3209993731,4cyclictest25-21ksoftirqd/112:34:131
3209993731,4cyclictest25-21ksoftirqd/107:25:061
3208993733,2cyclictest9-21ksoftirqd/008:15:260
3208993732,3cyclictest9-21ksoftirqd/010:55:000
3208993732,3cyclictest9-21ksoftirqd/007:20:010
3208993732,2cyclictest9-21ksoftirqd/010:05:010
3208993731,3cyclictest9-21ksoftirqd/011:15:000
3211993613,21cyclictest4894-21sed08:20:003
3210993630,4cyclictest33-21ksoftirqd/208:44:462
3210993630,4cyclictest33-21ksoftirqd/207:49:382
3209993631,3cyclictest25-21ksoftirqd/110:25:081
3209993630,4cyclictest25-21ksoftirqd/111:03:201
3209993630,4cyclictest25-21ksoftirqd/109:21:021
3209993630,3cyclictest25-21ksoftirqd/110:20:101
3209993629,5cyclictest25-21ksoftirqd/108:16:361
3208993631,3cyclictest9-21ksoftirqd/012:00:000
3208993630,4cyclictest9-21ksoftirqd/012:32:210
3208993630,3cyclictest9-21ksoftirqd/009:10:040
3211993529,4cyclictest41-21ksoftirqd/310:08:343
3211993513,20cyclictest11268-21cron11:55:003
3211993511,21cyclictest15624-21df_abs10:55:163
3211993510,22cyclictest4859-21fschecks_count11:40:163
3210993530,3cyclictest33-21ksoftirqd/212:16:342
3210993530,3cyclictest33-21ksoftirqd/209:48:242
3210993529,4cyclictest33-21ksoftirqd/209:24:402
3209993529,4cyclictest25-21ksoftirqd/110:42:461
3209993529,4cyclictest25-21ksoftirqd/109:50:231
3209993529,4cyclictest25-21ksoftirqd/109:04:071
3209993529,4cyclictest25-21ksoftirqd/108:45:361
3209993529,4cyclictest25-21ksoftirqd/108:09:311
3209993528,5cyclictest25-21ksoftirqd/111:18:441
3209993528,5cyclictest25-21ksoftirqd/111:18:441
320899353,30cyclictest1628-21latency_hist09:20:010
3208993531,3cyclictest9-21ksoftirqd/010:10:010
3208993531,3cyclictest9-21ksoftirqd/009:00:000
3208993531,3cyclictest9-21ksoftirqd/007:15:010
3208993531,2cyclictest9-21ksoftirqd/011:20:000
3208993531,2cyclictest9-21ksoftirqd/011:20:000
3208993530,3cyclictest9-21ksoftirqd/011:27:500
3208993530,3cyclictest9-21ksoftirqd/010:30:000
3208993530,3cyclictest9-21ksoftirqd/010:00:010
3208993530,3cyclictest9-21ksoftirqd/009:25:120
3208993530,2cyclictest9-21ksoftirqd/007:24:590
3208993530,2cyclictest449-21dbus-daemon07:25:220
3208993529,3cyclictest9-21ksoftirqd/007:55:000
3211993429,3cyclictest41-21ksoftirqd/312:15:103
3211993429,3cyclictest41-21ksoftirqd/310:01:043
3211993429,3cyclictest41-21ksoftirqd/309:48:363
3211993428,4cyclictest41-21ksoftirqd/308:58:233
3211993428,4cyclictest41-21ksoftirqd/308:30:593
3211993428,4cyclictest41-21ksoftirqd/307:35:343
3211993428,3cyclictest41-21ksoftirqd/309:15:123
3211993427,5cyclictest41-21ksoftirqd/310:20:003
3211993426,6cyclictest41-21ksoftirqd/307:45:003
3211993412,20cyclictest6768-21/usr/sbin/munin11:45:233
3211993412,20cyclictest19695-21/usr/sbin/munin08:50:243
3211993411,21cyclictest31978-21/usr/sbin/munin11:30:223
3210993429,3cyclictest33-21ksoftirqd/210:20:002
3210993429,3cyclictest33-21ksoftirqd/207:24:462
3210993428,4cyclictest33-21ksoftirqd/210:50:492
3210993428,4cyclictest33-21ksoftirqd/210:20:572
3210993428,4cyclictest33-21ksoftirqd/210:07:092
3210993428,4cyclictest33-21ksoftirqd/209:33:392
321099341,31cyclictest0-21swapper/207:55:192
321099340,4cyclictest207-21systemd-journal07:32:232
321099340,3cyclictest30016-21chrt12:31:592
3209993429,3cyclictest25-21ksoftirqd/110:51:251
3209993429,3cyclictest25-21ksoftirqd/109:25:111
3209993428,4cyclictest25-21ksoftirqd/110:09:411
3209993428,4cyclictest25-21ksoftirqd/110:04:511
3209993428,4cyclictest25-21ksoftirqd/108:58:011
3209993428,4cyclictest25-21ksoftirqd/108:04:451
3209993428,4cyclictest25-21ksoftirqd/107:59:561
3209993428,4cyclictest25-21ksoftirqd/107:52:491
3209993428,4cyclictest25-21ksoftirqd/107:19:431
3209993428,3cyclictest25-21ksoftirqd/107:40:111
3209993427,4cyclictest25-21ksoftirqd/107:13:051
3208993431,2cyclictest9-21ksoftirqd/012:25:170
3208993430,3cyclictest9-21ksoftirqd/012:15:000
3208993430,2cyclictest9-21ksoftirqd/012:35:190
3208993429,3cyclictest9-21ksoftirqd/012:05:010
3208993429,3cyclictest9-21ksoftirqd/009:30:040
139491343,8phc2sys41-21ksoftirqd/307:45:243
321199338,4cyclictest10754-21df_abs10:45:153
3211993328,3cyclictest41-21ksoftirqd/310:43:523
3211993327,4cyclictest41-21ksoftirqd/312:25:063
3211993327,4cyclictest41-21ksoftirqd/311:28:533
3211993327,4cyclictest41-21ksoftirqd/311:12:373
3211993327,4cyclictest41-21ksoftirqd/309:14:273
321199331,4cyclictest0-21swapper/308:10:113
3211993312,19cyclictest10999-21cat07:25:123
3211993311,19cyclictest30783-21/usr/sbin/munin10:20:203
321099333,27cyclictest22053-21kworker/2:009:40:212
3210993327,4cyclictest33-21ksoftirqd/211:53:522
3210993327,4cyclictest33-21ksoftirqd/211:12:252
3210993327,4cyclictest33-21ksoftirqd/209:14:102
3210993327,4cyclictest33-21ksoftirqd/209:00:382
3210993327,4cyclictest33-21ksoftirqd/207:44:452
321099331,3cyclictest0-21swapper/211:17:122
321099331,3cyclictest0-21swapper/211:17:122
321099331,2cyclictest32478-21taskset12:37:282
321099330,3cyclictest2411-21cat08:15:012
3209993328,3cyclictest25-21ksoftirqd/110:34:551
3209993328,3cyclictest25-21ksoftirqd/107:38:531
3209993327,4cyclictest25-21ksoftirqd/111:11:591
3209993327,4cyclictest25-21ksoftirqd/109:37:321
3209993327,4cyclictest25-21ksoftirqd/108:35:291
3209993327,4cyclictest25-21ksoftirqd/108:35:291
3208993329,3cyclictest9-21ksoftirqd/010:40:130
3208993329,3cyclictest9-21ksoftirqd/007:55:190
3208993328,3cyclictest9-21ksoftirqd/012:15:150
3208993328,3cyclictest9-21ksoftirqd/011:05:120
3208993328,3cyclictest9-21ksoftirqd/009:50:000
3208993327,4cyclictest9-21ksoftirqd/011:52:450
3208993327,4cyclictest9-21ksoftirqd/011:38:170
3208993327,4cyclictest9-21ksoftirqd/008:05:000
3208993327,3cyclictest9-21ksoftirqd/012:20:140
3208993327,3cyclictest9-21ksoftirqd/012:10:010
3208993327,3cyclictest9-21ksoftirqd/007:40:000
3208993326,3cyclictest9-21ksoftirqd/007:50:010
321199327,22cyclictest0-21swapper/312:20:133
3211993226,4cyclictest41-21ksoftirqd/312:32:003
3211993226,4cyclictest41-21ksoftirqd/311:03:183
3211993226,4cyclictest41-21ksoftirqd/310:29:523
3211993226,4cyclictest41-21ksoftirqd/307:58:143
321199322,4cyclictest0-21swapper/312:35:133
3211993210,3cyclictest6612-21/usr/sbin/munin09:30:153
3210993227,3cyclictest33-21ksoftirqd/212:28:542
3210993227,3cyclictest33-21ksoftirqd/211:40:252
3210993227,3cyclictest33-21ksoftirqd/211:34:262
3210993227,3cyclictest33-21ksoftirqd/208:46:312
3210993227,3cyclictest33-21ksoftirqd/208:16:462
3210993226,4cyclictest33-21ksoftirqd/212:10:572
3210993226,4cyclictest33-21ksoftirqd/212:02:182
3210993226,4cyclictest33-21ksoftirqd/211:36:552
3210993226,4cyclictest33-21ksoftirqd/210:44:032
3210993226,4cyclictest33-21ksoftirqd/209:28:222
3210993226,4cyclictest33-21ksoftirqd/209:18:282
3210993226,4cyclictest33-21ksoftirqd/207:36:382
3210993226,4cyclictest33-21ksoftirqd/207:11:272
3209993227,3cyclictest25-21ksoftirqd/110:59:541
3209993226,4cyclictest25-21ksoftirqd/112:22:351
3209993226,4cyclictest25-21ksoftirqd/112:06:301
3209993226,4cyclictest25-21ksoftirqd/111:06:211
3209993226,4cyclictest25-21ksoftirqd/109:41:331
3209993226,4cyclictest25-21ksoftirqd/108:24:301
3208993227,3cyclictest9-21ksoftirqd/011:25:000
3208993227,3cyclictest9-21ksoftirqd/011:00:000
3208993227,3cyclictest9-21ksoftirqd/010:50:000
3208993227,3cyclictest9-21ksoftirqd/009:20:190
3208993227,3cyclictest9-21ksoftirqd/008:35:000
3208993226,4cyclictest9-21ksoftirqd/011:48:200
3208993226,4cyclictest9-21ksoftirqd/009:04:050
3208993226,4cyclictest9-21ksoftirqd/008:47:290
3208993226,4cyclictest9-21ksoftirqd/008:11:090
320899321,29cyclictest22692-21kworker/0:110:35:150
320899320,2cyclictest121rcu_preempt08:29:590
321199318,3cyclictest30350-21cpuspeed_turbos08:05:143
321199318,3cyclictest27409-21df_abs09:05:143
321199318,3cyclictest14869-21grep07:30:263
321199316,3cyclictest17641-21df_abs08:45:153
321199315,4cyclictest0-21swapper/311:55:193
321199315,3cyclictest16842-21cut09:50:163
3211993126,3cyclictest41-21ksoftirqd/307:15:033
3211993125,4cyclictest41-21ksoftirqd/310:51:203
3211993125,4cyclictest41-21ksoftirqd/310:39:433
3211993125,4cyclictest41-21ksoftirqd/308:43:503
3211993125,4cyclictest41-21ksoftirqd/308:27:343
3211993125,4cyclictest41-21ksoftirqd/307:14:363
321199312,4cyclictest0-21swapper/312:05:123
321199312,4cyclictest0-21swapper/309:40:123
321199312,4cyclictest0-21swapper/307:50:113
321199311,4cyclictest1300-21snmpd11:23:073
3211993111,3cyclictest18627-21/usr/sbin/munin12:10:153
321099317,21cyclictest449-21dbus-daemon07:25:002
3210993126,3cyclictest33-21ksoftirqd/209:52:572
3210993125,4cyclictest33-21ksoftirqd/211:46:462
3210993125,4cyclictest33-21ksoftirqd/211:29:042
3210993125,4cyclictest33-21ksoftirqd/210:33:292
3210993125,4cyclictest33-21ksoftirqd/208:26:522
3210993125,4cyclictest33-21ksoftirqd/207:50:492
321099311,27cyclictest207-21systemd-journal11:03:032
321099310,3cyclictest27107-21cat10:10:202
3209993125,4cyclictest25-21ksoftirqd/111:47:011
3209993125,4cyclictest25-21ksoftirqd/110:38:251
3209993125,4cyclictest25-21ksoftirqd/109:45:421
3209993125,4cyclictest25-21ksoftirqd/108:10:541
3208993128,2cyclictest9-21ksoftirqd/009:40:180
3208993127,3cyclictest9-21ksoftirqd/008:35:190
3208993127,3cyclictest9-21ksoftirqd/008:35:190
3208993126,3cyclictest9-21ksoftirqd/010:21:550
3208993125,4cyclictest9-21ksoftirqd/008:21:530
321199309,3cyclictest3240-21/usr/sbin/munin10:30:233
321199306,3cyclictest12902-21df_abs08:35:143
321199306,3cyclictest12902-21df_abs08:35:143
321199301,5cyclictest26585-21latency_hist09:05:003
321099307,22cyclictest22053-21kworker/2:009:08:292
321099306,21cyclictest25069-21sed12:20:272
3210993025,3cyclictest33-21ksoftirqd/211:08:482
3210993025,3cyclictest33-21ksoftirqd/208:55:522
3210993024,4cyclictest33-21ksoftirqd/208:24:272
3210993013,15cyclictest31579-21ptp4l-jitter08:05:242
321099301,27cyclictest32275-21kworker/2:210:25:132
321099300,3cyclictest7977-21perf07:20:002
3209993024,4cyclictest25-21ksoftirqd/110:11:261
3209993024,4cyclictest25-21ksoftirqd/108:33:541
3209993024,4cyclictest25-21ksoftirqd/107:21:051
3208993027,2cyclictest9-21ksoftirqd/011:40:190
3208993026,2cyclictest9-21ksoftirqd/010:15:130
3208993026,2cyclictest9-21ksoftirqd/010:10:230
3208993025,3cyclictest9-21ksoftirqd/009:50:160
3208993025,3cyclictest9-21ksoftirqd/007:31:060
3208993024,4cyclictest9-21ksoftirqd/008:06:120
321199297,3cyclictest27792-21vmstat10:10:283
3211992924,3cyclictest41-21ksoftirqd/309:26:283
3211992924,3cyclictest41-21ksoftirqd/308:04:243
321099296,21cyclictest32275-21kworker/2:210:49:172
3210992923,4cyclictest33-21ksoftirqd/210:03:562
321099292,25cyclictest32275-21kworker/2:210:39:452
3209992924,3cyclictest25-21ksoftirqd/112:35:121
3209992924,3cyclictest25-21ksoftirqd/111:58:041
3209992924,3cyclictest25-21ksoftirqd/111:54:131
3209992923,4cyclictest25-21ksoftirqd/112:01:131
3209992923,4cyclictest25-21ksoftirqd/109:56:131
3209992923,4cyclictest25-21ksoftirqd/109:14:451
3209992923,4cyclictest25-21ksoftirqd/108:42:391
3209992923,4cyclictest25-21ksoftirqd/107:32:481
3208992925,3cyclictest9-21ksoftirqd/009:40:000
3208992925,2cyclictest9-21ksoftirqd/010:30:200
3211992822,4cyclictest41-21ksoftirqd/308:24:483
321099284,22cyclictest13121-21kworker/2:208:00:212
321099282,25cyclictest18085-21kworker/2:108:51:052
3209992823,3cyclictest25-21ksoftirqd/112:13:381
3209992822,4cyclictest25-21ksoftirqd/109:32:141
3209992822,4cyclictest25-21ksoftirqd/108:51:461
3209992822,4cyclictest25-21ksoftirqd/107:49:161
3209992822,3cyclictest25-21ksoftirqd/109:15:311
3208992824,3cyclictest9-21ksoftirqd/011:30:130
3209992722,3cyclictest25-21ksoftirqd/111:29:421
3209992722,3cyclictest25-21ksoftirqd/111:24:091
3209992722,3cyclictest25-21ksoftirqd/110:46:141
3208992723,2cyclictest20068-21cron07:45:010
3209992621,3cyclictest25-21ksoftirqd/112:15:121
3208992622,3cyclictest9-21ksoftirqd/011:00:140
3209992520,3cyclictest25-21ksoftirqd/112:28:171
3208992521,2cyclictest9-21ksoftirqd/009:05:010
3209992419,3cyclictest25-21ksoftirqd/108:25:391
3209992216,4cyclictest25-21ksoftirqd/111:31:401
3209992116,3cyclictest25-21ksoftirqd/111:40:001
3209992115,4cyclictest25-21ksoftirqd/109:05:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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