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2026-03-19 - 13:10
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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 rackdslot2.osadl.org (updated Thu Mar 19, 2026 00:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
38512237170,23sleep20-21swapper/219:07:012
40582229168,49sleep10-21swapper/119:09:421
139591206172,22phc2sys0-21swapper/319:09:133
37622204171,22sleep00-21swapper/019:05:510
2782421670,5sleep1438499cyclictest00:25:251
408528262,11sleep00-21swapper/019:10:010
438599790,77cyclictest17361-21kworker/2:221:35:252
4384996233,3cyclictest25-21ksoftirqd/100:20:211
4384996129,7cyclictest25-21ksoftirqd/120:20:001
4384996033,7cyclictest25-21ksoftirqd/123:25:131
4384995829,3cyclictest25-21ksoftirqd/121:35:181
52912570,2sleep20-21swapper/221:25:172
4384995717,8cyclictest25-21ksoftirqd/119:40:271
4384995715,8cyclictest25-21ksoftirqd/121:30:131
4384995627,3cyclictest25-21ksoftirqd/122:40:241
4384995627,3cyclictest25-21ksoftirqd/100:35:261
4384995621,4cyclictest25-21ksoftirqd/120:55:231
4384995529,7cyclictest25-21ksoftirqd/122:50:121
4384995524,9cyclictest25-21ksoftirqd/122:50:001
4384995523,10cyclictest25-21ksoftirqd/100:15:011
4384995522,4cyclictest25-21ksoftirqd/100:15:221
4384995521,4cyclictest25-21ksoftirqd/122:15:211
4384995520,3cyclictest25-21ksoftirqd/100:00:181
4384995515,8cyclictest25-21ksoftirqd/120:00:241
288732550,4sleep0101ktimersoftd/000:30:130
4384995426,7cyclictest25-21ksoftirqd/119:20:211
4384995426,3cyclictest25-21ksoftirqd/121:25:211
4384995425,4cyclictest25-21ksoftirqd/123:48:411
4384995419,4cyclictest25-21ksoftirqd/123:20:191
4384995416,4cyclictest25-21ksoftirqd/123:30:251
4384995415,7cyclictest25-21ksoftirqd/121:40:131
4384995415,7cyclictest25-21ksoftirqd/121:40:131
4384995324,4cyclictest25-21ksoftirqd/122:36:391
4384995324,4cyclictest25-21ksoftirqd/122:30:151
4384995322,7cyclictest25-21ksoftirqd/121:45:171
4384995322,6cyclictest25-21ksoftirqd/119:33:071
4384995319,3cyclictest25-21ksoftirqd/119:15:271
4384995318,3cyclictest25-21ksoftirqd/122:10:241
4384995318,3cyclictest25-21ksoftirqd/122:10:231
4384995316,6cyclictest25-21ksoftirqd/123:15:161
15202530,2sleep20-21swapper/221:15:262
4384995223,8cyclictest25-21ksoftirqd/119:38:441
50102510,3sleep35013-21fschecks_count21:25:143
4384995124,6cyclictest25-21ksoftirqd/120:45:131
4384995122,8cyclictest25-21ksoftirqd/119:55:131
4384995120,3cyclictest25-21ksoftirqd/122:05:121
4384995118,4cyclictest25-21ksoftirqd/121:50:131
4384995117,8cyclictest25-21ksoftirqd/100:30:251
4384995116,4cyclictest25-21ksoftirqd/100:05:201
4384995113,8cyclictest25-21ksoftirqd/121:55:191
438599501,47cyclictest25788-21kworker/2:022:20:052
438499509,4cyclictest25-21ksoftirqd/120:50:141
4384995024,3cyclictest25-21ksoftirqd/121:08:051
4384995021,9cyclictest25-21ksoftirqd/119:10:211
4384995017,3cyclictest25-21ksoftirqd/121:20:021
4384995016,7cyclictest25-21ksoftirqd/123:55:211
4384995016,4cyclictest25-21ksoftirqd/123:00:211
4384995014,8cyclictest25-21ksoftirqd/121:10:201
4384995013,10cyclictest25-21ksoftirqd/123:50:111
438499500,2cyclictest25-21ksoftirqd/121:20:001
4386994910,3cyclictest309332meminfo23:25:193
4384994922,4cyclictest25-21ksoftirqd/119:54:491
4384994922,3cyclictest25-21ksoftirqd/123:38:291
4384994922,3cyclictest25-21ksoftirqd/122:04:301
4384994915,2cyclictest121rcu_preempt20:20:041
4384994910,9cyclictest25-21ksoftirqd/121:00:241
438599480,3cyclictest32455-21kworker/2:219:35:052
4384994835,3cyclictest25-21ksoftirqd/122:20:251
4384994822,6cyclictest25-21ksoftirqd/120:05:181
4384994822,4cyclictest25-21ksoftirqd/119:46:551
4384994817,7cyclictest25-21ksoftirqd/119:25:141
4384994817,7cyclictest25-21ksoftirqd/119:25:141
4384994816,8cyclictest25-21ksoftirqd/120:25:161
438499472,3cyclictest25-21ksoftirqd/123:10:161
4384994717,8cyclictest25-21ksoftirqd/120:10:231
139291460,37ptp4l0-21swapper/319:10:013
4384994526,10cyclictest25-21ksoftirqd/122:25:161
4384994522,9cyclictest25-21ksoftirqd/123:05:011
438499438,4cyclictest25-21ksoftirqd/122:55:371
438499430,3cyclictest25-21ksoftirqd/120:35:221
139291430,1ptp4l401ktimersoftd/300:34:373
139291430,0ptp4l401ktimersoftd/322:05:143
139291430,0ptp4l401ktimersoftd/320:59:083
139291430,0ptp4l401ktimersoftd/319:45:223
41298420,2rtkit-daemon0-21swapper/022:01:270
139291420,0ptp4l401ktimersoftd/323:18:493
4385994120,18cyclictest33-21ksoftirqd/222:00:102
4384994115,3cyclictest25-21ksoftirqd/123:40:231
438499410,2cyclictest25-21ksoftirqd/120:40:221
41298410,2rtkit-daemon0-21swapper/021:40:240
41298410,2rtkit-daemon0-21swapper/021:40:240
139291410,0ptp4l401ktimersoftd/322:30:103
438599402,36cyclictest25788-21kworker/2:022:18:452
4384994034,3cyclictest25-21ksoftirqd/120:35:001
139291400,1ptp4l401ktimersoftd/322:17:123
139291400,1ptp4l401ktimersoftd/300:13:153
139291400,0ptp4l401ktimersoftd/300:35:173
139291400,0ptp4l401ktimersoftd/300:15:123
4385993932,4cyclictest27129-21cron21:05:002
438599392,34cyclictest14067-21latency_hist21:45:012
438599392,34cyclictest14067-21latency_hist21:45:012
139291390,1ptp4l401ktimersoftd/323:47:163
4386993831,4cyclictest41-21ksoftirqd/320:25:093
4385993832,4cyclictest33-21ksoftirqd/220:50:112
4385993832,4cyclictest33-21ksoftirqd/219:34:012
4386993732,3cyclictest41-21ksoftirqd/300:01:353
4386993731,4cyclictest41-21ksoftirqd/321:42:473
4386993731,4cyclictest41-21ksoftirqd/321:42:473
4386993731,4cyclictest41-21ksoftirqd/320:33:313
4386993731,4cyclictest41-21ksoftirqd/300:22:183
4385993731,4cyclictest33-21ksoftirqd/222:26:182
4385993731,3cyclictest33-21ksoftirqd/223:55:012
4385993712,22cyclictest10576-21grep20:30:132
4383993731,4cyclictest9-21ksoftirqd/022:52:290
4386993631,3cyclictest41-21ksoftirqd/321:35:123
4386993630,4cyclictest41-21ksoftirqd/323:20:593
4386993630,4cyclictest41-21ksoftirqd/322:24:523
4386993630,3cyclictest41-21ksoftirqd/321:45:123
4386993629,4cyclictest41-21ksoftirqd/300:05:413
438599363,30cyclictest3333-21strings21:20:222
4385993631,3cyclictest33-21ksoftirqd/220:59:342
4385993630,4cyclictest33-21ksoftirqd/223:49:352
4385993630,4cyclictest33-21ksoftirqd/222:31:492
4385993630,4cyclictest33-21ksoftirqd/220:39:242
4385993630,4cyclictest33-21ksoftirqd/200:11:492
4385993617,17cyclictest33-21ksoftirqd/221:54:112
4383993631,3cyclictest9-21ksoftirqd/020:43:150
4383993630,4cyclictest9-21ksoftirqd/022:18:390
4383993630,4cyclictest9-21ksoftirqd/019:38:400
139291360,0ptp4l401ktimersoftd/319:25:263
139291360,0ptp4l401ktimersoftd/319:25:263
4386993530,3cyclictest41-21ksoftirqd/319:36:353
4386993529,4cyclictest41-21ksoftirqd/320:51:083
4386993529,4cyclictest41-21ksoftirqd/320:37:123
4386993529,4cyclictest41-21ksoftirqd/320:21:203
4386993529,4cyclictest41-21ksoftirqd/320:18:033
4386993528,4cyclictest41-21ksoftirqd/321:05:043
4385993531,3cyclictest33-21ksoftirqd/200:08:352
4385993530,3cyclictest33-21ksoftirqd/200:34:292
4385993529,4cyclictest33-21ksoftirqd/223:30:342
4385993529,4cyclictest33-21ksoftirqd/223:26:052
4385993529,4cyclictest33-21ksoftirqd/222:51:102
4385993529,4cyclictest33-21ksoftirqd/220:11:162
4385993529,4cyclictest33-21ksoftirqd/220:07:072
4385993529,4cyclictest33-21ksoftirqd/219:58:242
4385993529,4cyclictest33-21ksoftirqd/200:15:382
4385993514,18cyclictest19566-21uptime23:00:262
4385993513,19cyclictest13692-21latency_hist19:30:002
4385993513,19cyclictest13692-21latency_hist19:30:002
4383993529,4cyclictest9-21ksoftirqd/023:13:470
4383993529,4cyclictest9-21ksoftirqd/022:46:430
4383993529,4cyclictest9-21ksoftirqd/020:06:120
4383993529,4cyclictest9-21ksoftirqd/019:27:370
4383993529,4cyclictest9-21ksoftirqd/019:27:370
4386993428,4cyclictest41-21ksoftirqd/322:47:453
4386993428,4cyclictest41-21ksoftirqd/321:59:003
4386993428,4cyclictest41-21ksoftirqd/321:51:063
4386993428,4cyclictest41-21ksoftirqd/321:23:143
4385993429,3cyclictest33-21ksoftirqd/223:35:132
4385993429,3cyclictest33-21ksoftirqd/200:21:202
4385993428,4cyclictest33-21ksoftirqd/223:58:502
4385993428,4cyclictest33-21ksoftirqd/220:15:092
4385993428,4cyclictest33-21ksoftirqd/219:53:512
4385993410,3cyclictest20083-21latency_hist20:50:002
4383993429,3cyclictest9-21ksoftirqd/020:54:300
4383993429,3cyclictest9-21ksoftirqd/020:16:470
4383993428,4cyclictest9-21ksoftirqd/023:08:360
4383993428,4cyclictest9-21ksoftirqd/021:29:080
4383993428,4cyclictest9-21ksoftirqd/019:48:590
4386993329,3cyclictest41-21ksoftirqd/320:04:363
4386993328,3cyclictest41-21ksoftirqd/323:52:143
4386993328,3cyclictest41-21ksoftirqd/321:13:073
4386993328,3cyclictest41-21ksoftirqd/320:06:243
4386993327,4cyclictest41-21ksoftirqd/321:16:163
4386993327,4cyclictest41-21ksoftirqd/320:46:073
438599333,29cyclictest25788-21kworker/2:022:06:132
4385993328,3cyclictest33-21ksoftirqd/223:41:012
4385993328,3cyclictest33-21ksoftirqd/221:57:242
4385993328,3cyclictest33-21ksoftirqd/219:42:592
4385993328,3cyclictest33-21ksoftirqd/200:29:072
4385993327,4cyclictest33-21ksoftirqd/221:33:242
4385993327,4cyclictest33-21ksoftirqd/220:03:502
4385993327,4cyclictest33-21ksoftirqd/219:15:492
438599331,8cyclictest5948-21apt-get22:35:112
438599331,3cyclictest1312-21snmpd23:14:422
4385993311,3cyclictest25437-21df_abs23:15:132
4383993328,3cyclictest9-21ksoftirqd/023:43:360
4383993327,4cyclictest9-21ksoftirqd/021:22:100
4383993327,4cyclictest9-21ksoftirqd/019:31:540
4383993327,3cyclictest9-21ksoftirqd/020:47:050
4386993227,3cyclictest41-21ksoftirqd/323:11:213
4386993227,3cyclictest41-21ksoftirqd/323:07:093
4386993227,3cyclictest41-21ksoftirqd/323:02:393
4386993227,3cyclictest41-21ksoftirqd/322:54:093
4386993227,3cyclictest41-21ksoftirqd/322:44:453
4386993227,3cyclictest41-21ksoftirqd/322:40:003
4386993226,4cyclictest41-21ksoftirqd/323:34:433
4386993226,4cyclictest41-21ksoftirqd/319:22:353
4385993227,3cyclictest33-21ksoftirqd/220:44:142
4385993227,3cyclictest33-21ksoftirqd/219:48:192
4385993226,4cyclictest33-21ksoftirqd/223:23:442
4385993226,4cyclictest33-21ksoftirqd/222:12:472
4385993226,4cyclictest33-21ksoftirqd/222:12:472
4385993226,4cyclictest33-21ksoftirqd/221:13:012
438599321,6cyclictest4414-21chrt19:10:102
4385993211,3cyclictest9842-21timerandwakeup22:40:252
4383993227,3cyclictest9-21ksoftirqd/023:35:450
4383993227,3cyclictest9-21ksoftirqd/022:44:140
4383993227,3cyclictest9-21ksoftirqd/020:20:100
4383993227,3cyclictest9-21ksoftirqd/020:02:270
4383993227,3cyclictest9-21ksoftirqd/019:57:100
4383993227,3cyclictest9-21ksoftirqd/000:02:250
4383993226,4cyclictest9-21ksoftirqd/023:51:060
4383993226,4cyclictest9-21ksoftirqd/023:32:570
4383993226,4cyclictest9-21ksoftirqd/022:32:340
4383993226,4cyclictest9-21ksoftirqd/021:31:250
4383993226,4cyclictest9-21ksoftirqd/020:34:490
4383993226,4cyclictest9-21ksoftirqd/000:06:380
4383993226,3cyclictest9-21ksoftirqd/022:21:590
4386993126,3cyclictest41-21ksoftirqd/320:10:103
4386993125,4cyclictest41-21ksoftirqd/323:41:533
4386993125,4cyclictest41-21ksoftirqd/319:54:283
4386993125,4cyclictest41-21ksoftirqd/319:44:293
438599317,3cyclictest9589-21seq20:26:182
438599317,3cyclictest29018-21cat21:05:262
4385993125,4cyclictest33-21ksoftirqd/223:07:192
4385993124,4cyclictest33-21ksoftirqd/200:00:112
438599310,12cyclictest1522-1kworker/2:2H19:25:002
4383993126,3cyclictest9-21ksoftirqd/022:10:160
4383993126,3cyclictest9-21ksoftirqd/022:10:160
4383993126,3cyclictest9-21ksoftirqd/021:00:000
4383993125,4cyclictest9-21ksoftirqd/021:00:560
438399311,27cyclictest14522-21wc21:45:130
139291310,9ptp4l0-21swapper/322:57:103
4386993025,3cyclictest41-21ksoftirqd/300:28:443
4386993024,4cyclictest41-21ksoftirqd/323:37:523
4386993024,4cyclictest41-21ksoftirqd/322:26:283
4386993024,4cyclictest41-21ksoftirqd/319:56:243
4386993024,4cyclictest41-21ksoftirqd/319:33:183
438599308,3cyclictest5596-21cat20:20:132
4385993025,3cyclictest33-21ksoftirqd/222:45:362
4383993025,3cyclictest9-21ksoftirqd/022:05:580
4383993025,3cyclictest9-21ksoftirqd/021:58:130
4383993025,3cyclictest9-21ksoftirqd/021:53:210
4383993025,3cyclictest9-21ksoftirqd/021:35:020
4383993025,3cyclictest9-21ksoftirqd/021:19:340
4383993025,3cyclictest9-21ksoftirqd/021:10:000
4383993024,4cyclictest9-21ksoftirqd/023:23:580
4383993024,4cyclictest9-21ksoftirqd/019:50:320
4383993024,3cyclictest9-21ksoftirqd/019:43:020
139291300,0ptp4l401ktimersoftd/320:44:243
4386992924,3cyclictest41-21ksoftirqd/321:30:063
4386992923,4cyclictest41-21ksoftirqd/323:56:413
4385992923,4cyclictest33-21ksoftirqd/222:55:282
4385992923,4cyclictest33-21ksoftirqd/200:37:452
438599290,10cyclictest15199-21cut21:45:192
4383992924,3cyclictest9-21ksoftirqd/023:15:490
4383992924,3cyclictest9-21ksoftirqd/020:39:380
4383992923,4cyclictest9-21ksoftirqd/023:49:490
4383992923,4cyclictest9-21ksoftirqd/022:27:160
4383992923,3cyclictest9-21ksoftirqd/023:03:270
4383992822,4cyclictest9-21ksoftirqd/020:27:100
4383992822,4cyclictest9-21ksoftirqd/019:21:310
4383992822,4cyclictest9-21ksoftirqd/000:28:120
139291280,0ptp4l401ktimersoftd/322:13:073
139291280,0ptp4l401ktimersoftd/322:13:073
4386992722,3cyclictest41-21ksoftirqd/322:00:343
4386992722,3cyclictest41-21ksoftirqd/321:01:093
4383992722,3cyclictest9-21ksoftirqd/023:59:560
4383992621,3cyclictest9-21ksoftirqd/000:17:570
4383992621,3cyclictest9-21ksoftirqd/000:10:400
4383992620,4cyclictest9-21ksoftirqd/000:22:540
4383992520,3cyclictest9-21ksoftirqd/022:58:350
4383992519,4cyclictest9-21ksoftirqd/022:36:320
4383992519,4cyclictest9-21ksoftirqd/000:39:120
139291240,0ptp4l401ktimersoftd/319:15:213
4383992217,3cyclictest9-21ksoftirqd/019:15:540
4383992216,4cyclictest9-21ksoftirqd/023:26:430
4383992116,3cyclictest29871-21tr21:10:140
41298200,2rtkit-daemon0-21swapper/020:14:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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