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2025-08-21 - 22:14
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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 rackdslot4.osadl.org (updated Thu Aug 21, 2025 12:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
134791228162,21phc2sys0-21swapper/307:07:093
300932204170,22sleep20-21swapper/207:08:062
300142202167,23sleep00-21swapper/007:07:030
300402201167,22sleep10-21swapper/107:07:241
369981030,75rtkit-daemon0-21swapper/307:10:013
140052720,2sleep10-21swapper/112:00:221
140052720,2sleep10-21swapper/112:00:221
40272600,4sleep2321ktimersoftd/208:25:202
11782580,3sleep0518-21/usr/sbin/munin10:30:180
134991560,1ptp4l401ktimersoftd/311:38:513
134991550,1ptp4l401ktimersoftd/308:35:273
134991540,1ptp4l401ktimersoftd/307:39:113
300942530,2sleep30-21swapper/312:30:293
294162490,3sleep029410-21rt-features10:20:240
30535994410,4cyclictest25-21ksoftirqd/107:14:591
134991430,0ptp4l401ktimersoftd/307:29:583
3053599428,3cyclictest25-21ksoftirqd/108:40:231
3053599425,3cyclictest25-21ksoftirqd/111:40:211
30535994212,4cyclictest25-21ksoftirqd/111:50:231
130691420,2getstats0-21swapper/309:50:263
3053599410,10cyclictest25-21ksoftirqd/108:15:281
30536994035,3cyclictest33-21ksoftirqd/211:14:592
3053599404,3cyclictest25-21ksoftirqd/109:05:251
30535994011,7cyclictest25-21ksoftirqd/109:30:001
30535994011,7cyclictest25-21ksoftirqd/109:30:001
134991400,0ptp4l401ktimersoftd/310:35:183
134991400,0ptp4l401ktimersoftd/307:58:243
134991400,0ptp4l401ktimersoftd/307:45:173
30536993925,3cyclictest33-21ksoftirqd/208:35:002
3053599396,3cyclictest25-21ksoftirqd/111:35:151
30535993935,3cyclictest25-21ksoftirqd/107:20:001
3053599393,3cyclictest25-21ksoftirqd/109:20:171
3053599392,4cyclictest25-21ksoftirqd/112:15:221
3053599391,3cyclictest25-21ksoftirqd/110:35:131
3053599391,3cyclictest25-21ksoftirqd/110:15:231
134991390,0ptp4l401ktimersoftd/309:10:423
134991390,0ptp4l401ktimersoftd/308:05:153
30536993826,9cyclictest33-21ksoftirqd/209:15:272
3053599387,7cyclictest25-21ksoftirqd/108:35:001
3053599387,3cyclictest25-21ksoftirqd/110:20:161
3053599386,6cyclictest25-21ksoftirqd/111:30:271
3053599386,5cyclictest25-21ksoftirqd/109:15:261
3053599386,3cyclictest25-21ksoftirqd/110:40:271
3053599385,6cyclictest25-21ksoftirqd/108:10:241
3053599385,3cyclictest25-21ksoftirqd/108:20:131
30535993833,3cyclictest25-21ksoftirqd/112:25:271
30535993833,3cyclictest25-21ksoftirqd/107:55:001
30535993833,3cyclictest25-21ksoftirqd/107:30:001
30535993833,2cyclictest25-21ksoftirqd/107:40:011
3053599383,2cyclictest25-21ksoftirqd/109:40:201
3053599382,3cyclictest25-21ksoftirqd/112:05:111
3053599382,3cyclictest25-21ksoftirqd/111:55:221
3053599382,3cyclictest25-21ksoftirqd/109:50:311
3053599382,3cyclictest25-21ksoftirqd/108:25:251
3053599382,3cyclictest25-21ksoftirqd/107:55:221
3053599381,4cyclictest25-21ksoftirqd/111:25:171
30537993731,4cyclictest41-21ksoftirqd/309:46:163
30537993731,4cyclictest41-21ksoftirqd/308:55:503
30537993731,4cyclictest41-21ksoftirqd/308:55:503
30536993734,2cyclictest33-21ksoftirqd/207:15:002
30536993733,2cyclictest33-21ksoftirqd/211:59:592
30536993733,2cyclictest33-21ksoftirqd/207:40:002
30536993731,3cyclictest33-21ksoftirqd/211:50:212
30536993731,3cyclictest33-21ksoftirqd/208:15:002
3053599377,4cyclictest25-21ksoftirqd/109:00:171
3053599375,6cyclictest25-21ksoftirqd/110:50:171
3053599375,6cyclictest25-21ksoftirqd/109:45:241
3053599374,5cyclictest25-21ksoftirqd/111:15:251
30535993733,2cyclictest25-21ksoftirqd/111:50:001
30535993732,3cyclictest25-21ksoftirqd/111:10:281
30535993731,4cyclictest25-21ksoftirqd/109:35:191
30535993730,4cyclictest25-21ksoftirqd/111:00:531
3053599372,3cyclictest25-21ksoftirqd/110:05:231
3053599372,3cyclictest25-21ksoftirqd/107:40:201
3053599371,3cyclictest25-21ksoftirqd/107:30:301
3053599371,3cyclictest121rcu_preempt08:05:161
30537993631,3cyclictest41-21ksoftirqd/310:11:103
30537993631,3cyclictest41-21ksoftirqd/307:35:013
30537993630,4cyclictest41-21ksoftirqd/312:15:533
30537993630,4cyclictest41-21ksoftirqd/310:23:243
30537993629,4cyclictest41-21ksoftirqd/309:30:043
30536993632,3cyclictest33-21ksoftirqd/209:40:002
30536993632,3cyclictest33-21ksoftirqd/209:15:012
30536993624,9cyclictest33-21ksoftirqd/210:55:282
30536993622,11cyclictest33-21ksoftirqd/212:29:592
3053599368,3cyclictest25-21ksoftirqd/109:55:191
3053599366,3cyclictest25-21ksoftirqd/107:20:131
3053599365,6cyclictest25-21ksoftirqd/110:00:221
3053599363,4cyclictest25-21ksoftirqd/112:10:211
30535993632,3cyclictest25-21ksoftirqd/112:35:001
30535993631,3cyclictest25-21ksoftirqd/109:15:011
30535993631,3cyclictest25-21ksoftirqd/108:50:151
30535993630,4cyclictest25-21ksoftirqd/108:48:381
30535993624,3cyclictest25-21ksoftirqd/108:35:111
3053599362,3cyclictest121rcu_preempt10:55:261
3053599361,5cyclictest25-21ksoftirqd/111:05:281
3053599361,3cyclictest25-21ksoftirqd/111:20:171
30534993630,4cyclictest27508-21cron10:20:000
30537993530,3cyclictest41-21ksoftirqd/309:58:243
30537993529,4cyclictest41-21ksoftirqd/312:06:293
30537993529,4cyclictest41-21ksoftirqd/311:40:543
30537993529,4cyclictest41-21ksoftirqd/310:50:243
30537993529,4cyclictest41-21ksoftirqd/310:01:453
30536993530,3cyclictest33-21ksoftirqd/210:20:002
30536993530,3cyclictest33-21ksoftirqd/209:05:192
30536993530,3cyclictest33-21ksoftirqd/208:00:152
30536993529,4cyclictest33-21ksoftirqd/210:30:002
30536993529,3cyclictest33-21ksoftirqd/208:35:132
30536993525,9cyclictest33-21ksoftirqd/208:40:242
30536993525,9cyclictest33-21ksoftirqd/207:40:212
30536993523,9cyclictest33-21ksoftirqd/210:20:202
3053599354,3cyclictest25-21ksoftirqd/108:55:241
3053599354,3cyclictest25-21ksoftirqd/108:55:241
30535993530,3cyclictest25-21ksoftirqd/110:49:591
30535993530,3cyclictest25-21ksoftirqd/108:00:211
30535993528,4cyclictest25-21ksoftirqd/112:35:031
3053599352,3cyclictest121rcu_preempt09:30:181
134991350,0ptp4l401ktimersoftd/309:21:483
30537993429,3cyclictest41-21ksoftirqd/311:06:153
30537993428,4cyclictest41-21ksoftirqd/312:36:463
30536993430,3cyclictest33-21ksoftirqd/209:55:142
30536993430,2cyclictest33-21ksoftirqd/210:40:002
30536993429,3cyclictest33-21ksoftirqd/212:10:482
30536993429,3cyclictest33-21ksoftirqd/212:01:192
30536993429,3cyclictest33-21ksoftirqd/212:01:192
30536993429,3cyclictest33-21ksoftirqd/211:25:252
30536993429,3cyclictest33-21ksoftirqd/208:15:212
30536993428,4cyclictest33-21ksoftirqd/211:34:242
30536993428,4cyclictest33-21ksoftirqd/209:33:192
30536993428,4cyclictest33-21ksoftirqd/207:24:182
3053599343,6cyclictest121rcu_preempt10:30:161
30535993429,3cyclictest25-21ksoftirqd/107:45:211
30535993428,3cyclictest32733-21turbostat10:30:001
3053599341,5cyclictest25-21ksoftirqd/112:20:191
30534993428,4cyclictest9-21ksoftirqd/011:25:390
30534993428,4cyclictest9-21ksoftirqd/009:35:140
30534993428,4cyclictest9-21ksoftirqd/008:58:280
30534993428,4cyclictest9-21ksoftirqd/008:58:280
30534993428,4cyclictest9-21ksoftirqd/008:44:320
30534993428,4cyclictest9-21ksoftirqd/008:32:480
30534993428,4cyclictest9-21ksoftirqd/007:43:300
30534993428,4cyclictest9-21ksoftirqd/007:13:450
30534993427,5cyclictest9-21ksoftirqd/011:23:500
30537993328,3cyclictest41-21ksoftirqd/310:45:013
30537993328,3cyclictest41-21ksoftirqd/308:11:253
30537993328,3cyclictest10484-21cron11:55:003
30537993327,4cyclictest41-21ksoftirqd/311:26:463
30537993327,4cyclictest41-21ksoftirqd/311:20:283
30537993327,4cyclictest41-21ksoftirqd/309:09:103
30537993327,4cyclictest41-21ksoftirqd/308:01:353
30536993329,3cyclictest33-21ksoftirqd/211:25:012
30536993329,3cyclictest33-21ksoftirqd/208:45:202
30536993328,3cyclictest33-21ksoftirqd/210:45:162
30536993328,3cyclictest33-21ksoftirqd/209:40:192
30536993328,3cyclictest33-21ksoftirqd/207:19:212
30536993327,4cyclictest33-21ksoftirqd/212:18:042
30536993327,4cyclictest33-21ksoftirqd/211:38:292
30536993327,4cyclictest33-21ksoftirqd/209:46:482
30536993327,4cyclictest33-21ksoftirqd/207:52:342
30536993327,4cyclictest33-21ksoftirqd/207:26:182
30536993327,3cyclictest33-21ksoftirqd/208:09:512
30536993319,11cyclictest33-21ksoftirqd/211:40:222
3053599330,10cyclictest25-21ksoftirqd/110:10:151
30534993328,3cyclictest9-21ksoftirqd/012:38:120
30534993328,3cyclictest9-21ksoftirqd/011:50:020
30534993327,4cyclictest9-21ksoftirqd/012:12:130
30534993327,4cyclictest9-21ksoftirqd/012:07:270
30534993327,4cyclictest9-21ksoftirqd/011:44:240
30534993327,4cyclictest9-21ksoftirqd/010:53:580
30534993327,4cyclictest9-21ksoftirqd/010:47:320
30534993327,4cyclictest9-21ksoftirqd/009:40:400
30534993327,4cyclictest9-21ksoftirqd/009:26:080
30534993327,4cyclictest9-21ksoftirqd/009:26:080
30534993327,4cyclictest9-21ksoftirqd/007:29:540
30534993326,5cyclictest9-21ksoftirqd/007:49:510
134991330,0ptp4l401ktimersoftd/308:50:293
30537993227,3cyclictest41-21ksoftirqd/311:31:103
30537993227,3cyclictest41-21ksoftirqd/309:41:353
30537993227,3cyclictest41-21ksoftirqd/308:43:233
30537993226,4cyclictest41-21ksoftirqd/312:20:063
30537993226,4cyclictest41-21ksoftirqd/310:28:053
30537993226,4cyclictest41-21ksoftirqd/309:04:403
30537993226,3cyclictest41-21ksoftirqd/308:30:003
3053699323,4cyclictest33-21ksoftirqd/210:55:002
30536993227,3cyclictest33-21ksoftirqd/212:31:252
30536993227,3cyclictest33-21ksoftirqd/209:55:002
30536993227,3cyclictest33-21ksoftirqd/209:29:312
30536993227,3cyclictest33-21ksoftirqd/209:29:312
30536993227,3cyclictest33-21ksoftirqd/209:22:112
30536993227,3cyclictest33-21ksoftirqd/207:45:332
30536993226,4cyclictest33-21ksoftirqd/211:07:192
30536993226,4cyclictest33-21ksoftirqd/210:11:072
30536993226,3cyclictest33-21ksoftirqd/210:01:302
30536993225,4cyclictest33-21ksoftirqd/207:34:092
30534993227,3cyclictest9-21ksoftirqd/012:17:140
30534993227,3cyclictest9-21ksoftirqd/008:00:530
30534993226,4cyclictest9-21ksoftirqd/012:22:310
30534993226,4cyclictest9-21ksoftirqd/011:34:580
30534993226,4cyclictest9-21ksoftirqd/010:55:380
30534993226,4cyclictest9-21ksoftirqd/010:25:570
30534993226,4cyclictest9-21ksoftirqd/009:53:480
30534993226,4cyclictest9-21ksoftirqd/009:05:100
30534993226,4cyclictest9-21ksoftirqd/008:50:050
30534993226,4cyclictest9-21ksoftirqd/007:32:540
134991320,0ptp4l401ktimersoftd/310:56:243
134991320,0ptp4l401ktimersoftd/308:30:183
30537993126,3cyclictest41-21ksoftirqd/312:26:373
30537993126,3cyclictest41-21ksoftirqd/311:16:123
30537993126,3cyclictest41-21ksoftirqd/311:10:553
30537993126,3cyclictest41-21ksoftirqd/307:50:273
30537993125,4cyclictest41-21ksoftirqd/310:33:593
30537993125,4cyclictest41-21ksoftirqd/309:17:403
30537993125,4cyclictest41-21ksoftirqd/308:24:253
30536993127,3cyclictest33-21ksoftirqd/210:45:002
30536993126,3cyclictest33-21ksoftirqd/212:36:362
30536993126,3cyclictest33-21ksoftirqd/212:23:452
30536993126,3cyclictest33-21ksoftirqd/212:10:012
30536993126,3cyclictest33-21ksoftirqd/211:16:182
30536993126,3cyclictest33-21ksoftirqd/210:05:202
30536993125,4cyclictest33-21ksoftirqd/208:57:012
30536993125,4cyclictest33-21ksoftirqd/208:57:012
30536993120,10cyclictest33-21ksoftirqd/210:30:242
30534993127,3cyclictest9-21ksoftirqd/010:05:500
30534993126,3cyclictest9-21ksoftirqd/011:19:160
30534993125,4cyclictest9-21ksoftirqd/009:56:410
30534993125,4cyclictest9-21ksoftirqd/008:24:380
30534993125,4cyclictest9-21ksoftirqd/008:14:070
134991310,0ptp4l401ktimersoftd/308:49:513
134991310,0ptp4l401ktimersoftd/308:15:123
134991310,0ptp4l401ktimersoftd/307:44:123
30537993025,3cyclictest41-21ksoftirqd/312:12:253
30537993025,3cyclictest41-21ksoftirqd/311:57:043
30537993025,3cyclictest41-21ksoftirqd/310:05:383
30537993025,3cyclictest41-21ksoftirqd/309:35:093
30537993024,4cyclictest41-21ksoftirqd/312:00:563
30537993024,4cyclictest41-21ksoftirqd/312:00:553
30537993024,4cyclictest41-21ksoftirqd/310:42:213
30537993024,4cyclictest41-21ksoftirqd/307:16:443
30536993025,3cyclictest33-21ksoftirqd/211:50:002
30536993025,3cyclictest33-21ksoftirqd/211:04:592
30536993025,3cyclictest33-21ksoftirqd/207:55:252
30536993024,3cyclictest33-21ksoftirqd/208:21:572
30534993025,3cyclictest9-21ksoftirqd/011:09:570
30534993025,3cyclictest9-21ksoftirqd/008:05:120
30534993024,4cyclictest9-21ksoftirqd/012:04:060
30534993024,4cyclictest9-21ksoftirqd/012:04:050
30534993024,4cyclictest9-21ksoftirqd/011:39:430
30534993024,4cyclictest9-21ksoftirqd/008:46:400
30534993024,4cyclictest9-21ksoftirqd/008:27:590
30534993024,4cyclictest9-21ksoftirqd/007:20:030
134991300,0ptp4l401ktimersoftd/307:20:503
30537992924,3cyclictest41-21ksoftirqd/309:26:443
30537992924,3cyclictest41-21ksoftirqd/309:26:443
30536992924,3cyclictest33-21ksoftirqd/209:00:562
30536992919,9cyclictest33-21ksoftirqd/208:50:282
30534992924,3cyclictest9-21ksoftirqd/011:45:050
30534992924,3cyclictest9-21ksoftirqd/008:39:380
30534992923,4cyclictest9-21ksoftirqd/012:27:080
30534992923,4cyclictest9-21ksoftirqd/010:36:080
30534992923,4cyclictest9-21ksoftirqd/009:11:150
30534992923,4cyclictest9-21ksoftirqd/008:19:040
134991290,0ptp4l401ktimersoftd/310:18:113
3053499288,17cyclictest22639-21wc08:00:000
30534992823,3cyclictest9-21ksoftirqd/010:43:180
30534992823,3cyclictest9-21ksoftirqd/009:34:460
30534992822,4cyclictest9-21ksoftirqd/011:14:030
30534992822,4cyclictest9-21ksoftirqd/007:15:580
30537992721,4cyclictest41-21ksoftirqd/311:47:043
30534992722,3cyclictest9-21ksoftirqd/010:03:590
30534992722,3cyclictest9-21ksoftirqd/009:45:370
30534992721,4cyclictest9-21ksoftirqd/010:14:180
30534992721,4cyclictest9-21ksoftirqd/009:20:380
30534992621,3cyclictest9-21ksoftirqd/011:02:230
30534992621,3cyclictest9-21ksoftirqd/007:38:080
30534992317,4cyclictest9-21ksoftirqd/009:15:410
134991230,0ptp4l401ktimersoftd/311:00:133
30534992116,3cyclictest9-21ksoftirqd/011:55:030
30534992015,3cyclictest29314-21missed_timers12:30:230
30534991813,3cyclictest18308-21df07:50:160
30534991812,4cyclictest21532-21sed09:00:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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