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2026-06-17 - 22:05
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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 rackdslot4.osadl.org (updated Wed Jun 17, 2026 12:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
160952228164,52sleep30-21swapper/307:07:173
162252202168,23sleep00-21swapper/007:08:510
160432202169,22sleep10-21swapper/107:06:341
140862199167,21sleep20-21swapper/207:05:032
2776821440,5sleep31660999cyclictest08:35:223
1385918865,12phc2sys0-21swapper/307:10:003
138491580,1ptp4l401ktimersoftd/310:05:193
314642550,2sleep1231rcuc/107:40:001
138491550,1ptp4l401ktimersoftd/311:23:343
1660999463,40cyclictest3562-21turbostat11:05:003
50798440,8rtkit-daemon0-21swapper/111:56:001
16607994437,3cyclictest3947-21sh07:50:001
16607994437,3cyclictest3947-21sh07:50:001
16608994337,3cyclictest11303-21sh12:24:592
16606994325,15cyclictest9-21ksoftirqd/009:37:590
50798420,6rtkit-daemon0-21swapper/109:45:211
16609994237,3cyclictest16932-21fschecks_count10:25:153
1660699423,2cyclictest0-21swapper/009:27:380
138491420,0ptp4l401ktimersoftd/309:11:263
138491420,0ptp4l401ktimersoftd/308:31:223
138491420,0ptp4l401ktimersoftd/307:16:163
1660699410,3cyclictest6133-21taskset12:12:160
1631524132,4sleep10-21swapper/107:10:001
138491410,0ptp4l401ktimersoftd/310:01:533
138491410,0ptp4l401ktimersoftd/310:01:523
16609994021,17cyclictest41-21ksoftirqd/307:35:123
16606994033,5cyclictest9-21ksoftirqd/009:59:590
138491400,0ptp4l401ktimersoftd/311:52:163
16607993932,4cyclictest25-21ksoftirqd/108:00:011
1660699390,2cyclictest13203-21seq09:10:450
138491390,1ptp4l401ktimersoftd/307:30:023
1660899381,35cyclictest13892-21basename11:25:002
16607993818,19cyclictest0-21swapper/108:21:041
16606993833,3cyclictest9-21ksoftirqd/008:20:000
16606993819,16cyclictest9-21ksoftirqd/008:11:580
50798370,7rtkit-daemon0-21swapper/111:31:341
16609993731,4cyclictest41-21ksoftirqd/312:04:223
16608993731,4cyclictest33-21ksoftirqd/211:29:162
1660899370,36cyclictest0-21swapper/209:01:332
16607993731,4cyclictest25-21ksoftirqd/110:35:121
16607993731,4cyclictest25-21ksoftirqd/109:23:521
16607993731,4cyclictest25-21ksoftirqd/108:38:291
16607993731,4cyclictest25-21ksoftirqd/108:08:561
305102360,2sleep30-21swapper/309:45:273
16609993631,3cyclictest41-21ksoftirqd/308:20:003
16609993630,4cyclictest41-21ksoftirqd/310:17:163
16609993630,4cyclictest41-21ksoftirqd/309:01:063
16608993630,4cyclictest33-21ksoftirqd/211:33:212
16608993630,4cyclictest33-21ksoftirqd/210:49:242
16608993630,4cyclictest33-21ksoftirqd/209:49:232
16608993629,4cyclictest33-21ksoftirqd/210:09:052
16607993630,4cyclictest25-21ksoftirqd/112:36:581
16607993630,4cyclictest25-21ksoftirqd/112:32:521
16607993630,4cyclictest25-21ksoftirqd/111:17:581
16606993629,4cyclictest9-21ksoftirqd/008:40:330
1660699362,31cyclictest15196-21strings10:20:210
16609993530,3cyclictest41-21ksoftirqd/309:18:113
16609993530,3cyclictest18807-21idleruntime-cro11:35:003
16609993530,3cyclictest11044-21sh09:10:013
16609993529,4cyclictest41-21ksoftirqd/312:36:563
16609993529,4cyclictest41-21ksoftirqd/311:17:163
16609993529,4cyclictest41-21ksoftirqd/310:59:523
16609993529,4cyclictest41-21ksoftirqd/309:57:223
16609993529,4cyclictest41-21ksoftirqd/308:07:383
16608993530,3cyclictest33-21ksoftirqd/211:19:492
16608993530,3cyclictest33-21ksoftirqd/207:22:232
16608993529,4cyclictest33-21ksoftirqd/212:16:412
16608993529,4cyclictest33-21ksoftirqd/211:52:512
16608993529,4cyclictest33-21ksoftirqd/210:39:332
16608993529,4cyclictest33-21ksoftirqd/209:06:382
16608993529,4cyclictest33-21ksoftirqd/208:39:102
16608993529,3cyclictest33-21ksoftirqd/210:32:172
1660899350,2cyclictest0-21swapper/208:23:162
16607993529,4cyclictest25-21ksoftirqd/108:13:461
16606993530,3cyclictest9-21ksoftirqd/011:35:130
16606993529,4cyclictest9-21ksoftirqd/010:59:400
16606993529,4cyclictest9-21ksoftirqd/010:52:260
16606993529,4cyclictest9-21ksoftirqd/010:29:440
16606993529,4cyclictest9-21ksoftirqd/009:44:350
16606993513,20cyclictest27445-21sed08:35:180
16606993512,20cyclictest10488-21sed10:10:240
1660699350,3cyclictest12673-21kernelversion11:20:180
138491350,0ptp4l401ktimersoftd/307:55:223
16609993428,4cyclictest41-21ksoftirqd/312:06:403
16609993428,4cyclictest41-21ksoftirqd/310:10:093
16609993428,4cyclictest41-21ksoftirqd/308:57:533
16608993429,3cyclictest9849-21irqrtprio08:00:182
16608993428,4cyclictest33-21ksoftirqd/212:12:482
16608993428,4cyclictest33-21ksoftirqd/209:57:492
16608993428,4cyclictest33-21ksoftirqd/209:34:512
16608993428,4cyclictest33-21ksoftirqd/208:57:482
16608993428,4cyclictest33-21ksoftirqd/208:26:142
16608993428,4cyclictest33-21ksoftirqd/208:13:192
16608993428,3cyclictest33-21ksoftirqd/207:58:492
16608993427,5cyclictest33-21ksoftirqd/212:32:102
16607993429,3cyclictest25-21ksoftirqd/109:58:581
16607993428,4cyclictest25-21ksoftirqd/109:15:401
16607993428,4cyclictest25-21ksoftirqd/108:59:551
16607993427,4cyclictest25-21ksoftirqd/108:27:451
16606993429,3cyclictest9-21ksoftirqd/012:06:370
16606993429,3cyclictest9-21ksoftirqd/007:28:320
16606993428,4cyclictest9-21ksoftirqd/011:41:050
16606993428,4cyclictest9-21ksoftirqd/011:04:070
16606993428,4cyclictest9-21ksoftirqd/008:08:590
16606993428,4cyclictest9-21ksoftirqd/007:54:510
16606993413,19cyclictest12018-21df_abs12:25:140
16606993412,19cyclictest2562-21sed08:50:210
16606993412,19cyclictest21825-21expr07:20:130
16606993412,18cyclictest28780-21cat09:45:110
16606993411,20cyclictest29221-21grep11:55:130
16606993411,20cyclictest21707-21expr08:25:150
1660699340,4cyclictest13225-21chrt10:16:330
1660699340,4cyclictest10269-21cat08:00:200
1660699340,2cyclictest159782sleep011:25:330
16609993328,3cyclictest41-21ksoftirqd/311:15:003
16609993328,3cyclictest41-21ksoftirqd/307:50:433
16609993327,4cyclictest41-21ksoftirqd/311:49:023
16609993327,4cyclictest41-21ksoftirqd/311:27:033
16609993327,4cyclictest41-21ksoftirqd/310:53:513
16609993327,4cyclictest41-21ksoftirqd/310:23:063
16609993327,4cyclictest41-21ksoftirqd/307:41:583
16609993324,3cyclictest41-21ksoftirqd/308:46:293
16608993328,3cyclictest33-21ksoftirqd/212:04:402
16608993328,3cyclictest33-21ksoftirqd/211:09:092
16608993328,3cyclictest33-21ksoftirqd/211:04:412
16608993328,3cyclictest33-21ksoftirqd/210:42:282
16608993328,3cyclictest33-21ksoftirqd/210:26:262
16608993328,3cyclictest33-21ksoftirqd/208:43:562
16608993328,3cyclictest33-21ksoftirqd/207:44:462
16608993327,4cyclictest33-21ksoftirqd/211:11:432
16608993327,4cyclictest33-21ksoftirqd/210:57:142
16608993327,4cyclictest33-21ksoftirqd/209:26:242
16608993327,4cyclictest33-21ksoftirqd/209:13:392
16608993327,4cyclictest33-21ksoftirqd/208:05:042
16608993325,5cyclictest33-21ksoftirqd/207:39:292
16607993328,3cyclictest25-21ksoftirqd/111:09:561
16607993328,3cyclictest25-21ksoftirqd/109:53:501
16607993328,3cyclictest25-21ksoftirqd/107:26:471
16607993327,4cyclictest25-21ksoftirqd/112:22:431
16607993327,4cyclictest25-21ksoftirqd/112:18:411
16607993327,4cyclictest25-21ksoftirqd/111:51:401
16607993327,4cyclictest25-21ksoftirqd/111:22:081
16607993327,4cyclictest25-21ksoftirqd/110:51:441
16607993327,4cyclictest25-21ksoftirqd/110:22:441
16607993327,4cyclictest25-21ksoftirqd/108:16:591
16607993327,4cyclictest25-21ksoftirqd/108:00:021
16607993327,4cyclictest25-21ksoftirqd/107:42:571
16607993327,3cyclictest25-21ksoftirqd/109:38:381
16606993329,3cyclictest9-21ksoftirqd/007:10:140
16606993328,3cyclictest9-21ksoftirqd/011:50:110
16606993328,3cyclictest9-21ksoftirqd/009:24:250
16606993327,4cyclictest9-21ksoftirqd/012:30:080
16606993327,4cyclictest9-21ksoftirqd/010:42:040
16606993327,4cyclictest9-21ksoftirqd/009:32:440
16606993327,4cyclictest9-21ksoftirqd/008:32:340
16606993312,18cyclictest6669-21acpi11:10:110
16606993312,18cyclictest19365-21df_inode10:30:140
16606993310,20cyclictest7041-21df_abs07:55:130
1660699330,3cyclictest27067-21hddtemp_smartct07:30:160
1660699330,3cyclictest26447-21grep10:45:130
1660699330,3cyclictest26089-21taskset11:46:130
1660699330,3cyclictest21202-21runrttasks08:24:390
1660699330,3cyclictest19353-21cstates07:15:120
683023225,2sleep125-21ksoftirqd/109:00:151
16609993227,3cyclictest41-21ksoftirqd/309:29:113
16609993227,3cyclictest41-21ksoftirqd/308:26:273
16609993226,4cyclictest41-21ksoftirqd/312:18:473
16609993226,4cyclictest41-21ksoftirqd/311:56:083
16609993226,4cyclictest41-21ksoftirqd/309:31:503
16609993226,4cyclictest41-21ksoftirqd/308:40:123
16609993226,4cyclictest41-21ksoftirqd/308:14:003
16609993226,4cyclictest41-21ksoftirqd/307:24:213
16608993226,4cyclictest33-21ksoftirqd/211:41:312
16608993226,4cyclictest33-21ksoftirqd/210:24:022
16608993226,4cyclictest33-21ksoftirqd/207:52:452
16608993226,4cyclictest33-21ksoftirqd/207:13:052
16608993226,3cyclictest33-21ksoftirqd/211:35:032
16608993225,5cyclictest33-21ksoftirqd/212:08:182
16608993225,4cyclictest33-21ksoftirqd/209:40:592
16607993227,3cyclictest25-21ksoftirqd/111:03:471
16607993226,4cyclictest28555-21sh09:45:011
16607993226,4cyclictest25-21ksoftirqd/111:14:181
16607993226,4cyclictest25-21ksoftirqd/110:33:551
16607993226,4cyclictest25-21ksoftirqd/109:10:591
16607993226,4cyclictest25-21ksoftirqd/108:52:221
1660699329,20cyclictest4179-21expr10:00:130
1660699329,20cyclictest4179-21expr10:00:130
1660699329,19cyclictest16531-21cpu12:35:130
1660699328,21cyclictest31385-21latency_hist07:40:000
16606993226,4cyclictest9-21ksoftirqd/012:17:350
16606993210,20cyclictest16849-21expr11:30:130
1660699320,3cyclictest6181-21cat09:00:010
138491320,0ptp4l401ktimersoftd/312:30:153
138491320,0ptp4l401ktimersoftd/311:40:133
138491320,0ptp4l401ktimersoftd/308:00:143
16609993126,3cyclictest41-21ksoftirqd/309:54:383
16609993125,4cyclictest41-21ksoftirqd/311:39:073
16609993125,4cyclictest41-21ksoftirqd/309:20:473
16608993126,3cyclictest33-21ksoftirqd/208:45:472
16608993126,3cyclictest33-21ksoftirqd/208:32:402
16608993126,3cyclictest33-21ksoftirqd/207:31:092
16608993125,4cyclictest33-21ksoftirqd/211:56:362
16608993125,4cyclictest33-21ksoftirqd/207:27:252
16608993125,4cyclictest33-21ksoftirqd/207:19:032
16608993124,4cyclictest33-21ksoftirqd/210:15:022
16607993127,3cyclictest25-21ksoftirqd/111:41:161
16607993126,3cyclictest25-21ksoftirqd/110:43:241
16607993126,3cyclictest25-21ksoftirqd/110:25:391
16607993126,3cyclictest25-21ksoftirqd/110:17:501
16607993126,3cyclictest25-21ksoftirqd/107:15:391
16607993125,4cyclictest25-21ksoftirqd/112:10:551
16607993125,4cyclictest25-21ksoftirqd/110:56:211
16607993125,4cyclictest25-21ksoftirqd/108:47:361
16607993125,4cyclictest25-21ksoftirqd/108:41:021
1660699319,19cyclictest32691-21ptp4l-jitter09:50:230
1660699318,21cyclictest2043-21cat07:45:130
1660699318,21cyclictest2043-21cat07:45:130
1660699317,21cyclictest9719-21cut09:05:180
16606993125,3cyclictest9-21ksoftirqd/009:04:280
1660699311,3cyclictest50798rtkit-daemon08:45:130
1660699310,3cyclictest6267-21latency_hist11:10:010
1660699310,3cyclictest14253-21diskstats09:15:120
138491310,0ptp4l401ktimersoftd/307:25:213
16609993025,3cyclictest41-21ksoftirqd/312:25:073
16609993024,4cyclictest41-21ksoftirqd/312:23:213
16609993024,4cyclictest41-21ksoftirqd/310:46:323
16608993025,3cyclictest33-21ksoftirqd/209:22:572
16608993025,3cyclictest33-21ksoftirqd/208:52:292
16608993024,3cyclictest33-21ksoftirqd/207:45:302
16608993024,3cyclictest33-21ksoftirqd/207:45:302
16607993025,3cyclictest25-21ksoftirqd/110:11:461
16607993024,4cyclictest25-21ksoftirqd/110:45:461
16607993024,4cyclictest25-21ksoftirqd/109:25:261
16607993024,4cyclictest25-21ksoftirqd/107:54:281
16607993023,4cyclictest25-21ksoftirqd/111:25:051
16607993022,5cyclictest26141-21cron08:35:011
1660699309,18cyclictest9344-21expr12:20:130
16606993026,3cyclictest9-21ksoftirqd/010:06:170
138491300,0ptp4l401ktimersoftd/308:23:063
16608992924,3cyclictest33-21ksoftirqd/208:15:332
16608992923,4cyclictest33-21ksoftirqd/212:26:292
16607992924,3cyclictest25-21ksoftirqd/111:38:361
16607992924,3cyclictest25-21ksoftirqd/110:09:021
16607992924,3cyclictest25-21ksoftirqd/109:31:391
16607992924,3cyclictest25-21ksoftirqd/109:07:091
16607992923,4cyclictest25-21ksoftirqd/110:00:451
16607992923,4cyclictest25-21ksoftirqd/110:00:441
16606992923,4cyclictest9-21ksoftirqd/012:03:520
16609992823,3cyclictest41-21ksoftirqd/312:11:063
16609992823,3cyclictest41-21ksoftirqd/311:07:023
16609992823,3cyclictest41-21ksoftirqd/310:44:283
16609992822,4cyclictest41-21ksoftirqd/307:45:033
16609992822,4cyclictest41-21ksoftirqd/307:45:033
16608992823,3cyclictest33-21ksoftirqd/210:13:012
16608992822,4cyclictest33-21ksoftirqd/211:49:102
16607992823,3cyclictest25-21ksoftirqd/112:05:041
16606992823,3cyclictest9-21ksoftirqd/011:18:110
16606992822,4cyclictest9-21ksoftirqd/010:37:510
138491280,0ptp4l401ktimersoftd/310:37:423
138491280,0ptp4l401ktimersoftd/308:54:393
16609992722,3cyclictest41-21ksoftirqd/309:39:563
16608992722,3cyclictest33-21ksoftirqd/209:54:212
16607992722,3cyclictest25-21ksoftirqd/112:29:531
16607992721,4cyclictest25-21ksoftirqd/107:34:381
1660699276,18cyclictest29877-21iostat_ios07:35:190
16608992621,3cyclictest33-21ksoftirqd/212:39:222
16607992620,4cyclictest25-21ksoftirqd/111:49:001
16607992620,4cyclictest25-21ksoftirqd/107:23:551
16608992520,3cyclictest33-21ksoftirqd/209:37:192
138491250,0ptp4l401ktimersoftd/310:30:113
138491250,0ptp4l401ktimersoftd/309:40:033
16608992418,4cyclictest33-21ksoftirqd/210:00:502
16608992418,4cyclictest33-21ksoftirqd/210:00:502
16607991914,3cyclictest986-21users12:00:301
16608991814,2cyclictest28738-21/usr/sbin/munin10:50:272
16608991812,3cyclictest14231-21sed09:15:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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