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2026-06-16 - 15:36
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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 Tue Jun 16, 2026 12:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591206175,21phc2sys0-21swapper/307:06:583
173422202172,20sleep20-21swapper/207:07:592
173362202168,23sleep10-21swapper/107:07:531
174252200168,21sleep00-21swapper/007:08:580
185632590,2sleep10-21swapper/112:35:161
138491590,1ptp4l401ktimersoftd/308:10:433
138491580,1ptp4l401ktimersoftd/309:49:433
138491570,1ptp4l401ktimersoftd/308:01:393
138491560,1ptp4l401ktimersoftd/307:18:113
301232530,2sleep00-21swapper/008:40:110
103352500,4sleep21780199cyclictest12:20:012
17801994917,6cyclictest33-21ksoftirqd/211:55:152
303232480,27sleep125-21ksoftirqd/107:35:011
17801994815,8cyclictest33-21ksoftirqd/209:45:172
17801994720,6cyclictest33-21ksoftirqd/211:20:212
17801994717,6cyclictest33-21ksoftirqd/212:30:162
17801994717,6cyclictest33-21ksoftirqd/212:30:162
17801994716,6cyclictest33-21ksoftirqd/208:30:142
17801994715,7cyclictest33-21ksoftirqd/209:30:012
17801994712,6cyclictest33-21ksoftirqd/207:35:202
17800994711,23cyclictest32004-21sed09:45:241
17801994616,7cyclictest33-21ksoftirqd/211:40:282
70742450,2sleep20-21swapper/207:50:262
17801994518,7cyclictest33-21ksoftirqd/209:20:162
17801994516,3cyclictest33-21ksoftirqd/210:35:132
17801994515,4cyclictest33-21ksoftirqd/210:00:152
17801994514,6cyclictest33-21ksoftirqd/212:20:142
17801994513,5cyclictest33-21ksoftirqd/209:30:192
17801994513,4cyclictest33-21ksoftirqd/210:55:232
17801994510,6cyclictest33-21ksoftirqd/212:05:142
17801994415,4cyclictest33-21ksoftirqd/210:45:132
17801994412,5cyclictest33-21ksoftirqd/207:55:252
17801994411,6cyclictest33-21ksoftirqd/210:50:222
17801994315,3cyclictest33-21ksoftirqd/209:05:102
17801994312,6cyclictest33-21ksoftirqd/211:30:122
17801994312,4cyclictest33-21ksoftirqd/207:30:192
17801994312,4cyclictest33-21ksoftirqd/207:30:182
17801994310,6cyclictest33-21ksoftirqd/209:10:142
17799994337,4cyclictest2793-21idleruntime-cro09:54:590
138491430,1ptp4l401ktimersoftd/310:52:483
17801994237,3cyclictest33-21ksoftirqd/208:15:012
17801994228,11cyclictest33-21ksoftirqd/212:00:222
17801994217,6cyclictest33-21ksoftirqd/211:35:272
17801994214,6cyclictest33-21ksoftirqd/208:55:012
17801994213,3cyclictest33-21ksoftirqd/208:20:052
17801994212,4cyclictest33-21ksoftirqd/209:15:202
17801994211,4cyclictest33-21ksoftirqd/207:15:002
17800994212,18cyclictest1303-21runrttasks11:02:051
138491420,0ptp4l401ktimersoftd/307:25:173
1780199419,4cyclictest33-21ksoftirqd/212:30:002
1780199419,3cyclictest33-21ksoftirqd/211:15:132
1780199418,5cyclictest33-21ksoftirqd/210:05:192
1780199416,5cyclictest33-21ksoftirqd/208:00:262
17801994112,4cyclictest33-21ksoftirqd/210:10:162
17801994110,5cyclictest33-21ksoftirqd/207:15:112
17801994110,3cyclictest33-21ksoftirqd/212:35:272
17801994110,3cyclictest33-21ksoftirqd/208:45:142
138491410,1ptp4l401ktimersoftd/312:04:393
138491410,0ptp4l401ktimersoftd/310:49:123
138491410,0ptp4l401ktimersoftd/310:00:153
1780199408,3cyclictest33-21ksoftirqd/212:10:102
17801994035,3cyclictest33-21ksoftirqd/209:00:002
17801994034,3cyclictest33-21ksoftirqd/211:45:192
17801994015,7cyclictest33-21ksoftirqd/207:50:012
17801994012,4cyclictest33-21ksoftirqd/209:35:142
17801994010,4cyclictest33-21ksoftirqd/209:55:002
138491400,0ptp4l401ktimersoftd/312:30:133
138491400,0ptp4l401ktimersoftd/312:30:133
1780199397,6cyclictest33-21ksoftirqd/211:10:172
17801993911,3cyclictest33-21ksoftirqd/208:05:192
17801993910,3cyclictest33-21ksoftirqd/208:40:262
17800993912,26cyclictest0-21swapper/111:45:231
138491390,1ptp4l401ktimersoftd/308:05:143
17802993833,3cyclictest41-21ksoftirqd/310:15:013
17802993832,3cyclictest41-21ksoftirqd/308:00:013
1780199388,4cyclictest33-21ksoftirqd/211:10:002
1780199386,4cyclictest33-21ksoftirqd/208:35:132
1780199382,8cyclictest33-21ksoftirqd/208:29:162
17801993828,8cyclictest33-21ksoftirqd/209:59:162
17801993812,7cyclictest33-21ksoftirqd/208:15:162
138491380,0ptp4l401ktimersoftd/312:25:193
17802993732,3cyclictest41-21ksoftirqd/312:35:213
17802993731,4cyclictest41-21ksoftirqd/309:52:153
17802993731,3cyclictest41-21ksoftirqd/311:00:183
1780199377,2cyclictest33-21ksoftirqd/211:25:482
1780199375,2cyclictest33-21ksoftirqd/211:03:022
17801993734,2cyclictest33-21ksoftirqd/207:25:252
17801993724,4cyclictest33-21ksoftirqd/207:20:162
138491370,0ptp4l401ktimersoftd/308:50:263
50798360,2rtkit-daemon0-21swapper/307:41:373
17802993632,2cyclictest41-21ksoftirqd/309:20:153
17802993631,3cyclictest41-21ksoftirqd/308:20:003
17802993630,4cyclictest41-21ksoftirqd/311:59:203
17802993630,4cyclictest41-21ksoftirqd/307:13:573
17802993620,13cyclictest41-21ksoftirqd/311:50:003
1780199365,5cyclictest33-21ksoftirqd/211:50:202
1780199365,5cyclictest33-21ksoftirqd/210:40:142
1780199364,3cyclictest121rcu_preempt10:15:172
1780199362,4cyclictest33-21ksoftirqd/210:30:132
1780199361,4cyclictest33-21ksoftirqd/207:40:142
17800993630,4cyclictest25-21ksoftirqd/111:22:031
17800993630,4cyclictest25-21ksoftirqd/109:05:441
17800993630,4cyclictest25-21ksoftirqd/107:26:311
17800993630,3cyclictest25-21ksoftirqd/110:50:111
17799993631,3cyclictest9-21ksoftirqd/007:50:110
17799993630,4cyclictest9-21ksoftirqd/010:22:400
196562350,6sleep01779999cyclictest09:20:270
17802993530,3cyclictest41-21ksoftirqd/308:40:193
17802993529,4cyclictest41-21ksoftirqd/310:06:353
17802993529,4cyclictest41-21ksoftirqd/308:40:003
17802993529,3cyclictest41-21ksoftirqd/308:55:173
17801993530,3cyclictest33-21ksoftirqd/209:00:002
1780199351,2cyclictest121rcu_preempt09:40:182
17801993510,7cyclictest33-21ksoftirqd/210:25:152
1780199350,5cyclictest33-21ksoftirqd/210:20:242
17800993529,4cyclictest25-21ksoftirqd/111:52:401
17800993529,4cyclictest25-21ksoftirqd/111:39:591
17800993529,4cyclictest25-21ksoftirqd/110:46:281
17800993529,4cyclictest25-21ksoftirqd/110:32:521
17800993529,4cyclictest25-21ksoftirqd/110:09:461
17800993529,4cyclictest25-21ksoftirqd/109:51:011
17800993529,4cyclictest25-21ksoftirqd/108:22:261
17800993529,4cyclictest25-21ksoftirqd/108:11:191
17800993529,4cyclictest25-21ksoftirqd/108:06:301
17800993529,4cyclictest25-21ksoftirqd/107:31:561
17800993529,4cyclictest25-21ksoftirqd/107:31:561
17799993530,3cyclictest9-21ksoftirqd/009:35:200
17799993529,4cyclictest9-21ksoftirqd/007:35:570
138491350,0ptp4l401ktimersoftd/310:20:163
17802993429,3cyclictest41-21ksoftirqd/311:30:123
17802993428,4cyclictest41-21ksoftirqd/311:05:443
17802993428,4cyclictest41-21ksoftirqd/310:56:223
17802993428,4cyclictest41-21ksoftirqd/310:16:583
17802993428,3cyclictest41-21ksoftirqd/309:35:203
17802993421,11cyclictest41-21ksoftirqd/309:15:003
17800993428,4cyclictest25-21ksoftirqd/112:23:171
17800993428,4cyclictest25-21ksoftirqd/112:06:201
17800993428,4cyclictest25-21ksoftirqd/110:41:431
17800993428,4cyclictest25-21ksoftirqd/109:12:101
17800993428,4cyclictest25-21ksoftirqd/108:27:171
1780099340,3cyclictest4111-21/usr/sbin/munin08:50:241
17799993429,3cyclictest9-21ksoftirqd/007:40:120
17799993428,4cyclictest9-21ksoftirqd/009:59:220
138491340,0ptp4l401ktimersoftd/309:30:173
17802993330,2cyclictest41-21ksoftirqd/311:40:203
17802993328,3cyclictest41-21ksoftirqd/312:10:003
17802993328,3cyclictest41-21ksoftirqd/309:10:013
17802993327,4cyclictest41-21ksoftirqd/311:21:333
17802993327,4cyclictest41-21ksoftirqd/311:15:593
17800993328,3cyclictest25-21ksoftirqd/111:40:121
17800993328,3cyclictest25-21ksoftirqd/108:55:101
17800993327,4cyclictest25-21ksoftirqd/111:05:341
17800993327,4cyclictest25-21ksoftirqd/110:28:161
17800993327,4cyclictest25-21ksoftirqd/110:02:231
17800993327,4cyclictest25-21ksoftirqd/107:40:341
17799993328,3cyclictest9-21ksoftirqd/012:14:490
17799993328,3cyclictest9-21ksoftirqd/011:47:290
17799993328,3cyclictest9-21ksoftirqd/009:44:410
17799993328,3cyclictest9-21ksoftirqd/008:55:110
17799993327,4cyclictest9-21ksoftirqd/011:35:100
17799993327,4cyclictest9-21ksoftirqd/011:09:180
17799993327,4cyclictest9-21ksoftirqd/009:32:420
17799993327,4cyclictest9-21ksoftirqd/009:07:390
17799993327,4cyclictest9-21ksoftirqd/008:46:580
17799993327,4cyclictest9-21ksoftirqd/008:27:590
17799993326,5cyclictest9-21ksoftirqd/008:39:340
17799993326,4cyclictest9-21ksoftirqd/011:42:480
17802993228,3cyclictest41-21ksoftirqd/308:25:003
17802993227,3cyclictest41-21ksoftirqd/310:38:013
17802993226,4cyclictest41-21ksoftirqd/312:15:133
17802993226,4cyclictest41-21ksoftirqd/309:56:483
17802993226,4cyclictest41-21ksoftirqd/309:16:523
17802993226,3cyclictest41-21ksoftirqd/310:40:193
17800993227,3cyclictest25-21ksoftirqd/107:59:401
17800993227,3cyclictest25-21ksoftirqd/107:13:541
17800993226,4cyclictest25-21ksoftirqd/112:17:551
17800993226,4cyclictest25-21ksoftirqd/110:36:251
17800993226,4cyclictest25-21ksoftirqd/109:57:461
17800993226,4cyclictest25-21ksoftirqd/109:15:181
17800993226,4cyclictest25-21ksoftirqd/108:40:121
17800993215,16cyclictest0-21swapper/109:35:131
17800993210,19cyclictest16232-21irqrtprio11:25:181
1780099320,2cyclictest121rcu_preempt11:58:001
17799993227,3cyclictest9-21ksoftirqd/011:20:000
17799993227,3cyclictest9-21ksoftirqd/010:11:260
17799993227,3cyclictest9-21ksoftirqd/008:03:040
17799993226,4cyclictest9-21ksoftirqd/012:16:580
17799993226,4cyclictest9-21ksoftirqd/011:31:040
17799993226,4cyclictest9-21ksoftirqd/009:10:070
17799993226,4cyclictest9-21ksoftirqd/008:31:160
138491320,0ptp4l401ktimersoftd/310:30:313
138491320,0ptp4l401ktimersoftd/309:40:183
138491320,0ptp4l401ktimersoftd/308:45:453
17802993126,3cyclictest41-21ksoftirqd/311:55:003
17802993126,2cyclictest41-21ksoftirqd/311:10:123
17802993125,4cyclictest41-21ksoftirqd/307:45:383
17802993125,4cyclictest41-21ksoftirqd/307:32:343
17802993125,4cyclictest41-21ksoftirqd/307:32:343
17802993119,10cyclictest41-21ksoftirqd/309:05:013
1780099318,20cyclictest23641-21sed07:20:191
17800993126,3cyclictest25-21ksoftirqd/110:11:051
17800993126,3cyclictest25-21ksoftirqd/108:33:551
17800993125,4cyclictest25-21ksoftirqd/110:57:181
17800993125,4cyclictest25-21ksoftirqd/109:29:501
17800993111,17cyclictest7810-21sed07:55:011
17799993127,3cyclictest9-21ksoftirqd/011:00:000
17799993126,3cyclictest9-21ksoftirqd/012:27:050
17799993126,3cyclictest9-21ksoftirqd/010:52:330
17799993126,3cyclictest9-21ksoftirqd/010:41:470
17799993126,3cyclictest9-21ksoftirqd/010:34:230
17799993126,3cyclictest9-21ksoftirqd/010:00:100
17799993126,3cyclictest9-21ksoftirqd/007:27:200
17799993126,3cyclictest9-21ksoftirqd/007:16:420
17799993125,4cyclictest9-21ksoftirqd/011:01:280
17799993125,4cyclictest9-21ksoftirqd/007:30:350
17799993125,4cyclictest9-21ksoftirqd/007:30:340
17799993125,3cyclictest30077-21sh11:55:000
17799993124,4cyclictest9-21ksoftirqd/012:04:180
138491310,0ptp4l401ktimersoftd/307:39:453
17802993025,3cyclictest41-21ksoftirqd/311:35:183
17802993025,3cyclictest41-21ksoftirqd/309:29:403
1780099309,18cyclictest17016-21mailstats10:20:241
17800993025,3cyclictest25-21ksoftirqd/112:30:301
17800993025,3cyclictest25-21ksoftirqd/112:30:291
17800993025,3cyclictest25-21ksoftirqd/112:11:291
17800993025,3cyclictest25-21ksoftirqd/107:17:311
17800993024,4cyclictest25-21ksoftirqd/112:27:341
17800993024,4cyclictest25-21ksoftirqd/111:11:121
17800993024,4cyclictest25-21ksoftirqd/109:34:151
17800993024,4cyclictest25-21ksoftirqd/108:04:221
17800993013,15cyclictest4414-21sendmail_mailqu07:45:221
17800993013,14cyclictest11278-21interrupts11:15:171
17799993025,3cyclictest9-21ksoftirqd/008:10:080
17799993025,3cyclictest9-21ksoftirqd/007:58:380
17799993024,4cyclictest9-21ksoftirqd/011:27:150
17799993024,4cyclictest9-21ksoftirqd/009:17:290
17799993023,4cyclictest9-21ksoftirqd/007:11:410
1779999301,26cyclictest10427-21kworker/0:208:05:130
138491300,1ptp4l401ktimersoftd/308:30:203
138491300,0ptp4l401ktimersoftd/310:25:103
17802992925,2cyclictest41-21ksoftirqd/307:50:263
17802992924,3cyclictest41-21ksoftirqd/312:13:323
1780099298,18cyclictest1037-21cut08:45:181
1780099297,19cyclictest8631-21cut09:00:181
1780099297,19cyclictest19128-21ptp4l08:15:231
17800992913,13cyclictest29071-21rt-features08:35:261
17800992911,15cyclictest2192-21threads12:00:241
17799992924,3cyclictest9-21ksoftirqd/012:05:340
17799992924,3cyclictest9-21ksoftirqd/008:24:540
17799992923,4cyclictest9-21ksoftirqd/011:56:080
17799992923,4cyclictest9-21ksoftirqd/010:35:400
17799992923,4cyclictest9-21ksoftirqd/009:04:580
17799992923,3cyclictest9-21ksoftirqd/012:21:590
17802992823,3cyclictest41-21ksoftirqd/311:28:143
1780099288,17cyclictest19862-21seq11:31:121
1780099288,17cyclictest19591-21mailstats09:20:261
17800992823,3cyclictest25-21ksoftirqd/109:40:011
17800992822,4cyclictest25-21ksoftirqd/110:18:521
17799992823,3cyclictest9-21ksoftirqd/011:23:150
17799992823,3cyclictest9-21ksoftirqd/009:26:330
17799992822,4cyclictest9-21ksoftirqd/010:46:350
17802992723,3cyclictest41-21ksoftirqd/308:25:193
17802992721,3cyclictest41-21ksoftirqd/307:25:003
17799992721,4cyclictest9-21ksoftirqd/010:16:510
17799992621,3cyclictest9-21ksoftirqd/010:07:410
17799992521,2cyclictest9-21ksoftirqd/012:35:000
17799992521,2cyclictest9-21ksoftirqd/012:35:000
17799992520,3cyclictest9-21ksoftirqd/012:38:280
17799992520,3cyclictest9-21ksoftirqd/008:53:010
17799992519,3cyclictest9-21ksoftirqd/007:24:570
17799992517,5cyclictest9-21ksoftirqd/007:50:000
138491250,0ptp4l401ktimersoftd/312:20:243
17799992420,3cyclictest9-21ksoftirqd/010:25:280
17799992419,3cyclictest9-21ksoftirqd/011:10:460
3184222317,3sleep09-21ksoftirqd/009:45:230
17799992317,4cyclictest9-21ksoftirqd/008:16:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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