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2026-04-15 - 01:08
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rackbslot6.osadl.org (updated Tue Apr 14, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1646325660,8sleep20-21swapper/208:13:362
1507521710,5sleep21703099cyclictest12:35:072
1984021550,4sleep01701799cyclictest10:26:490
1984021550,4sleep01701799cyclictest10:26:490
2194421530,4sleep31703499cyclictest11:02:223
1068911020,39ptp4l401ktimersoftd/308:13:403
170312830,2sleep00-21swapper/009:23:220
148452750,2sleep00-21swapper/013:43:100
120332700,4sleep30-21swapper/312:33:113
239812670,4sleep21703099cyclictest13:18:272
166532654,10sleep00-21swapper/008:14:360
11102640,3sleep1241ktimersoftd/110:40:151
106891630,1ptp4l401ktimersoftd/311:39:493
106522630,2sleep20-21swapper/209:08:272
179852590,2sleep00-21swapper/012:03:530
106891570,1ptp4l401ktimersoftd/311:18:213
17023995524,5cyclictest25-21ksoftirqd/111:08:271
14842550,2sleep00-21swapper/012:21:360
17023995422,7cyclictest25-21ksoftirqd/108:58:071
106891540,13ptp4l25170-21kworker/3:212:50:113
17023995322,6cyclictest25-21ksoftirqd/111:43:101
106891530,1ptp4l401ktimersoftd/313:16:473
17023995129,3cyclictest25-21ksoftirqd/113:23:261
17023995123,5cyclictest25-21ksoftirqd/110:58:381
17023995122,5cyclictest25-21ksoftirqd/108:28:351
17023995122,4cyclictest25-21ksoftirqd/113:08:411
17023995023,5cyclictest25-21ksoftirqd/112:18:381
17023995022,5cyclictest25-21ksoftirqd/109:48:301
1702399501,4cyclictest872-21awk09:58:071
17023994925,4cyclictest25-21ksoftirqd/109:18:361
17023994923,9cyclictest25-21ksoftirqd/111:23:371
17023994921,4cyclictest25-21ksoftirqd/110:18:081
17023994921,4cyclictest25-21ksoftirqd/109:28:241
17023994919,6cyclictest25-21ksoftirqd/113:23:121
17023994824,4cyclictest25-21ksoftirqd/112:33:341
17023994824,4cyclictest25-21ksoftirqd/108:43:291
17023994822,8cyclictest25-21ksoftirqd/109:03:071
17023994822,10cyclictest25-21ksoftirqd/111:53:391
17023994822,10cyclictest25-21ksoftirqd/110:37:171
17023994821,4cyclictest25-21ksoftirqd/112:23:311
17023994820,5cyclictest25-21ksoftirqd/110:43:271
17023994819,8cyclictest25-21ksoftirqd/111:13:331
17023994818,8cyclictest25-21ksoftirqd/109:33:241
106891480,2ptp4l21537-21kworker/3:109:49:513
106891480,0ptp4l401ktimersoftd/310:03:363
1702399477,3cyclictest25-21ksoftirqd/110:53:101
17023994724,4cyclictest25-21ksoftirqd/111:31:441
1702399472,3cyclictest121rcu_preempt13:28:261
17023994723,4cyclictest25-21ksoftirqd/111:43:301
17023994722,4cyclictest25-21ksoftirqd/110:18:301
17023994721,9cyclictest25-21ksoftirqd/109:43:081
17023994721,8cyclictest25-21ksoftirqd/112:08:271
17023994721,8cyclictest25-21ksoftirqd/112:08:271
17023994719,4cyclictest25-21ksoftirqd/111:18:291
1702399465,9cyclictest25-21ksoftirqd/108:33:221
1702399465,9cyclictest25-21ksoftirqd/108:33:221
17023994621,8cyclictest25-21ksoftirqd/108:23:251
17023994621,4cyclictest25-21ksoftirqd/112:03:231
17023994620,9cyclictest25-21ksoftirqd/110:08:081
17023994620,4cyclictest25-21ksoftirqd/112:38:361
17023994619,5cyclictest25-21ksoftirqd/112:43:331
17023994619,4cyclictest25-21ksoftirqd/109:58:251
17023994619,10cyclictest25-21ksoftirqd/112:52:021
17023994616,8cyclictest25-21ksoftirqd/113:07:171
1702399458,7cyclictest25-21ksoftirqd/110:13:081
1702399456,7cyclictest25-21ksoftirqd/113:38:311
1702399455,9cyclictest25-21ksoftirqd/112:28:341
17023994532,3cyclictest25-21ksoftirqd/111:58:291
17023994532,3cyclictest25-21ksoftirqd/111:48:411
17023994522,4cyclictest25-21ksoftirqd/108:38:321
17023994522,4cyclictest25-21ksoftirqd/108:38:321
17023994521,4cyclictest25-21ksoftirqd/111:33:301
17023994521,4cyclictest25-21ksoftirqd/109:28:081
17023994521,10cyclictest25-21ksoftirqd/113:43:291
17023994520,8cyclictest25-21ksoftirqd/110:28:371
17023994520,8cyclictest25-21ksoftirqd/108:48:221
17023994519,4cyclictest25-21ksoftirqd/109:13:221
17023994517,10cyclictest25-21ksoftirqd/113:00:331
1702399445,8cyclictest25-21ksoftirqd/108:18:231
17023994421,4cyclictest25-21ksoftirqd/112:13:231
17023994420,10cyclictest25-21ksoftirqd/109:43:241
17023994419,8cyclictest25-21ksoftirqd/112:53:301
17023994418,4cyclictest25-21ksoftirqd/113:38:131
17023994410,10cyclictest25-21ksoftirqd/111:03:281
106891440,2ptp4l25170-21kworker/3:213:39:583
17023994319,10cyclictest25-21ksoftirqd/110:53:261
17023994317,10cyclictest25-21ksoftirqd/113:17:051
106891430,1ptp4l401ktimersoftd/311:48:573
1702399424,4cyclictest25-21ksoftirqd/109:08:231
17023994219,4cyclictest25-21ksoftirqd/109:03:281
17023994218,9cyclictest25-21ksoftirqd/110:23:281
17023994218,9cyclictest25-21ksoftirqd/110:23:281
106891390,1ptp4l401ktimersoftd/313:44:433
106891390,1ptp4l401ktimersoftd/313:28:383
106891390,1ptp4l401ktimersoftd/312:45:383
106891390,1ptp4l401ktimersoftd/312:23:373
106891390,1ptp4l401ktimersoftd/310:46:213
106891390,1ptp4l401ktimersoftd/310:30:433
106891380,1ptp4l401ktimersoftd/313:24:023
106891380,1ptp4l401ktimersoftd/313:23:063
106891380,1ptp4l401ktimersoftd/312:09:073
106891380,1ptp4l401ktimersoftd/312:09:073
106891380,1ptp4l401ktimersoftd/311:57:113
106891380,1ptp4l401ktimersoftd/311:29:353
106891380,1ptp4l401ktimersoftd/311:24:003
106891380,0ptp4l401ktimersoftd/313:34:573
106891370,1ptp4l401ktimersoftd/313:11:013
106891370,1ptp4l401ktimersoftd/313:08:043
106891370,1ptp4l401ktimersoftd/312:55:153
106891370,1ptp4l401ktimersoftd/312:39:393
106891370,1ptp4l401ktimersoftd/312:35:423
106891370,1ptp4l401ktimersoftd/312:19:023
106891370,1ptp4l401ktimersoftd/312:17:333
106891370,1ptp4l401ktimersoftd/312:05:553
106891370,1ptp4l401ktimersoftd/312:01:173
106891370,1ptp4l401ktimersoftd/311:14:013
106891370,1ptp4l401ktimersoftd/311:09:553
106891370,1ptp4l401ktimersoftd/311:03:483
106891370,1ptp4l401ktimersoftd/310:57:053
106891370,1ptp4l401ktimersoftd/310:50:083
106891370,1ptp4l401ktimersoftd/310:33:213
106891370,1ptp4l401ktimersoftd/308:28:183
1702399363,9cyclictest25-21ksoftirqd/108:18:051
106891360,1ptp4l401ktimersoftd/313:02:543
106891360,1ptp4l401ktimersoftd/311:45:233
106891360,1ptp4l401ktimersoftd/310:41:593
106891360,1ptp4l401ktimersoftd/310:23:393
106891360,1ptp4l401ktimersoftd/310:23:393
106891360,1ptp4l401ktimersoftd/310:19:003
106891360,0ptp4l401ktimersoftd/311:37:573
106891360,0ptp4l401ktimersoftd/309:34:593
106891360,0ptp4l401ktimersoftd/308:47:373
106891340,2ptp4l14314-21kworker/3:208:36:363
106891340,2ptp4l14314-21kworker/3:208:36:363
106891330,2ptp4l21537-21kworker/3:109:57:093
106891330,1ptp4l401ktimersoftd/308:55:513
106891320,1ptp4l401ktimersoftd/310:10:033
106891310,1ptp4l401ktimersoftd/309:45:443
239432300,2sleep20-21swapper/210:30:292
106891300,1ptp4l401ktimersoftd/308:19:193
106891300,0ptp4l401ktimersoftd/309:03:083
17030992923,3cyclictest33-21ksoftirqd/211:33:112
17030992922,4cyclictest33-21ksoftirqd/212:57:072
106891290,1ptp4l401ktimersoftd/309:58:333
17034992823,3cyclictest41-21ksoftirqd/309:23:073
17030992822,3cyclictest33-21ksoftirqd/213:13:132
17030992821,4cyclictest33-21ksoftirqd/212:46:592
1703099280,3cyclictest121rcu_preempt10:18:152
17030992720,4cyclictest33-21ksoftirqd/209:47:532
17030992720,4cyclictest33-21ksoftirqd/208:46:592
17017992722,3cyclictest9-21ksoftirqd/013:38:120
106891270,1ptp4l401ktimersoftd/308:58:253
218102260,2sleep30-21swapper/308:23:313
17034992621,3cyclictest41-21ksoftirqd/310:18:083
17030992621,3cyclictest33-21ksoftirqd/213:08:122
17030992620,3cyclictest33-21ksoftirqd/213:03:052
17017992621,3cyclictest9-21ksoftirqd/012:23:390
17017992620,3cyclictest9-21ksoftirqd/012:54:040
17017992620,3cyclictest9-21ksoftirqd/009:42:170
17017992620,3cyclictest9-21ksoftirqd/009:33:170
17017992619,4cyclictest9-21ksoftirqd/012:12:570
17017992619,4cyclictest9-21ksoftirqd/012:12:570
17017992611,4cyclictest9-21ksoftirqd/013:44:130
106891260,1ptp4l401ktimersoftd/309:29:263
17030992520,3cyclictest33-21ksoftirqd/212:38:402
17030992520,3cyclictest33-21ksoftirqd/210:43:272
17030992519,3cyclictest33-21ksoftirqd/210:37:322
17030992519,3cyclictest33-21ksoftirqd/208:56:022
17030992518,4cyclictest33-21ksoftirqd/210:06:402
17030992518,4cyclictest33-21ksoftirqd/208:58:252
17017992519,3cyclictest9-21ksoftirqd/009:54:340
17017992518,4cyclictest9-21ksoftirqd/010:07:100
106891250,1ptp4l401ktimersoftd/309:08:283
17034992418,3cyclictest41-21ksoftirqd/309:15:033
17030992418,3cyclictest33-21ksoftirqd/211:43:292
17030992418,3cyclictest33-21ksoftirqd/209:17:182
17030992418,3cyclictest33-21ksoftirqd/208:25:062
17030992417,4cyclictest33-21ksoftirqd/209:31:512
17030992417,4cyclictest33-21ksoftirqd/208:39:362
17030992417,4cyclictest33-21ksoftirqd/208:39:362
17030992411,4cyclictest33-21ksoftirqd/210:39:342
17030992410,12cyclictest33-21ksoftirqd/210:24:192
17030992410,12cyclictest33-21ksoftirqd/210:24:192
1701799245,8cyclictest24821-21ssh11:03:550
17017992419,3cyclictest9-21ksoftirqd/013:12:180
17017992419,3cyclictest9-21ksoftirqd/011:53:270
17017992418,3cyclictest9-21ksoftirqd/009:59:350
17017992418,3cyclictest9-21ksoftirqd/008:54:400
17017992417,4cyclictest9-21ksoftirqd/008:46:570
1701799241,17cyclictest0-21swapper/011:48:230
106891240,1ptp4l401ktimersoftd/309:38:183
106891240,1ptp4l401ktimersoftd/308:48:233
106891240,1ptp4l401ktimersoftd/308:38:183
106891240,1ptp4l401ktimersoftd/308:38:183
106891240,0ptp4l401ktimersoftd/309:26:323
17030992319,3cyclictest33-21ksoftirqd/212:51:422
17030992318,3cyclictest33-21ksoftirqd/211:08:282
17030992318,3cyclictest33-21ksoftirqd/209:38:252
17030992317,3cyclictest33-21ksoftirqd/209:56:562
17030992317,3cyclictest33-21ksoftirqd/209:24:332
17030992317,3cyclictest33-21ksoftirqd/209:21:242
17030992317,3cyclictest33-21ksoftirqd/208:34:092
17030992317,3cyclictest33-21ksoftirqd/208:34:092
17030992317,3cyclictest33-21ksoftirqd/208:30:512
17030992316,4cyclictest33-21ksoftirqd/208:53:052
17030992313,5cyclictest10798-21diskmemload12:08:232
17030992313,5cyclictest10798-21diskmemload12:08:232
17017992318,3cyclictest9-21ksoftirqd/011:38:420
17017992318,3cyclictest9-21ksoftirqd/010:18:190
17017992317,3cyclictest9-21ksoftirqd/013:28:370
17017992317,3cyclictest9-21ksoftirqd/012:58:300
1703099222,15cyclictest18823-21apt-get13:13:252
17030992217,3cyclictest33-21ksoftirqd/211:38:302
17030992216,3cyclictest33-21ksoftirqd/211:18:392
17030992216,3cyclictest33-21ksoftirqd/209:48:262
17030992216,3cyclictest33-21ksoftirqd/209:34:302
17030992215,4cyclictest8218-21/usr/sbin/munin10:48:372
17030992215,4cyclictest6200-21sh12:26:262
17030992215,4cyclictest33-21ksoftirqd/213:24:172
17030992215,4cyclictest33-21ksoftirqd/210:02:432
1703099220,7cyclictest0-21swapper/212:03:252
1701799226,7cyclictest9-21ksoftirqd/012:33:400
1701799226,4cyclictest31170-21ssh11:11:470
1701799225,3cyclictest121rcu_preempt11:23:290
17017992217,3cyclictest9-21ksoftirqd/010:48:400
17017992216,4cyclictest9-21ksoftirqd/009:44:340
17017992216,4cyclictest9-21ksoftirqd/009:29:280
17017992216,3cyclictest9-21ksoftirqd/009:20:170
17017992216,3cyclictest9-21ksoftirqd/009:17:440
17017992216,3cyclictest9-21ksoftirqd/008:23:080
17017992215,4cyclictest9-21ksoftirqd/010:15:010
1701799221,4cyclictest13601-21ssh11:59:400
1701799221,11cyclictest7543-21df_inode09:03:210
1703099219,9cyclictest7937-21irqrtprio09:03:252
17030992117,3cyclictest33-21ksoftirqd/211:55:212
17030992116,3cyclictest33-21ksoftirqd/212:22:062
17030992115,3cyclictest19432-21sh10:58:362
17030992114,4cyclictest33-21ksoftirqd/208:20:412
17030992114,4cyclictest14486-21sendmail_mailst10:53:332
17030992114,4cyclictest14043-21sh13:41:462
17030992114,4cyclictest13122-21sh11:58:492
1701799214,9cyclictest32526-21ssh10:38:370
17017992116,3cyclictest9-21ksoftirqd/013:13:430
17017992116,3cyclictest9-21ksoftirqd/011:23:100
17017992116,3cyclictest9-21ksoftirqd/010:12:400
17017992115,3cyclictest9-21ksoftirqd/008:48:450
17017992115,3cyclictest19334-21cron08:23:050
17017992114,4cyclictest512-21sh11:47:050
17017992113,6cyclictest17748-21gltestperf12:38:270
1701799210,5cyclictest31083-21ssh12:52:250
1703099204,10cyclictest19595-21apt-get11:33:232
1703099203,10cyclictest32362-21apt-get11:13:212
17030992014,3cyclictest7702-21sh13:34:052
17030992014,3cyclictest6070-21/usr/sbin/munin10:08:312
17030992014,3cyclictest2790-21sh13:28:542
17030992014,3cyclictest27335-21sed12:13:392
17030992014,3cyclictest15821-21hddtemp_smartct13:43:322
17030992013,4cyclictest9686-21/usr/sbin/munin11:23:252
17030992013,4cyclictest9414-21unixbench_singl12:28:432
17030992013,4cyclictest8997-21entropy10:13:242
17030992013,4cyclictest4228-21sh11:50:032
17030992013,4cyclictest24432-21timerandwakeup11:03:382
1701799205,4cyclictest9-21ksoftirqd/013:26:530
17017992014,4cyclictest9-21ksoftirqd/013:21:110
17017992014,4cyclictest18336-21fschecks_time10:58:250
17017992014,3cyclictest9-21ksoftirqd/008:59:170
17017992014,3cyclictest9-21ksoftirqd/008:38:060
17017992014,3cyclictest9-21ksoftirqd/008:38:060
17017992014,3cyclictest9-21ksoftirqd/008:29:220
17017992014,3cyclictest7999-21fschecks_time12:28:290
17017992014,3cyclictest26951-21rt-features12:13:320
17017992013,4cyclictest1581-21ls11:13:380
144622200,4sleep0101ktimersoftd/011:28:160
1701799192,14cyclictest29317-21gltestperf09:48:240
17017991914,3cyclictest10826-21sed13:03:400
17017991913,4cyclictest27680-21sh10:33:390
17017991913,3cyclictest22355-21cpuspeed_turbos12:43:270
17017991912,4cyclictest29494-21latency_hist08:43:060
17017991912,4cyclictest29494-21latency_hist08:43:060
17017991812,4cyclictest22703-21timerwakeupswit10:28:380
17017991812,4cyclictest11411-21seq09:09:050
17017991812,3cyclictest3662-21expr10:43:240
17017991812,3cyclictest20072-21gltestperf11:33:270
17017991812,3cyclictest13605-21expr10:53:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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