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2026-06-13 - 23:41
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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 100 highest latencies:
System rackdslot4.osadl.org (updated Sat Jun 13, 2026 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2540022120,5sleep325366-21execl07:09:373
2539822090,8sleep125366-21execl07:09:351
2543721860,5sleep225427-21execl07:09:522
2487721710,6sleep12570799cyclictest07:30:551
1108321710,7sleep12570799cyclictest08:30:261
2765021600,5sleep226968-21execl07:10:352
660421530,5sleep02570699cyclictest07:23:100
2475721510,6sleep02570699cyclictest12:15:140
251342146113,21sleep00-21swapper/007:07:460
305972860,4sleep330569-21sh07:29:073
309642740,4sleep330915-21multi.sh07:31:483
160672740,3sleep30-21swapper/307:35:313
157692710,3sleep015781-21wc07:29:570
60092700,6sleep22570899cyclictest07:28:142
138491660,0ptp4l401ktimersoftd/309:16:263
279082610,3sleep027135-21apt-get07:30:130
268602610,7sleep32570999cyclictest10:10:123
103592610,3sleep00-21swapper/009:35:200
275212600,7sleep32570999cyclictest07:23:213
186632590,3sleep118657-21od07:28:251
151012580,1sleep00-21swapper/009:45:180
32492570,5sleep23262-21sort07:30:242
109392570,3sleep20-21swapper/209:35:262
264762560,3sleep025432-21execl07:10:170
289922540,4sleep228327-21fstime07:15:172
286542510,2sleep10-21swapper/112:20:241
99972480,1sleep00-21swapper/010:40:190
229052480,2sleep10-21swapper/112:10:181
25709994728,5cyclictest41-21ksoftirqd/309:35:003
145242470,2sleep30-21swapper/309:45:143
138491430,0ptp4l401ktimersoftd/308:05:263
2570699420,2cyclictest121rcu_preempt12:30:000
25708993929,7cyclictest33-21ksoftirqd/207:23:202
25706993935,2cyclictest9-21ksoftirqd/011:40:000
25709993830,5cyclictest41-21ksoftirqd/308:20:133
25708993831,5cyclictest33-21ksoftirqd/211:59:512
138491380,0ptp4l401ktimersoftd/311:40:243
25709993732,3cyclictest41-21ksoftirqd/310:35:013
25709993732,3cyclictest41-21ksoftirqd/310:35:003
25709993731,4cyclictest41-21ksoftirqd/311:48:333
25708993731,4cyclictest33-21ksoftirqd/209:18:532
25708993730,5cyclictest33-21ksoftirqd/212:21:052
25707993732,3cyclictest25-21ksoftirqd/107:23:211
25707993732,3cyclictest25-21ksoftirqd/107:10:271
25707993731,4cyclictest25-21ksoftirqd/110:40:591
25707993731,4cyclictest25-21ksoftirqd/109:55:001
138491370,0ptp4l401ktimersoftd/309:35:163
138491370,0ptp4l401ktimersoftd/309:12:133
25709993630,4cyclictest41-21ksoftirqd/312:11:083
25709993630,4cyclictest41-21ksoftirqd/312:08:073
25709993630,4cyclictest41-21ksoftirqd/307:51:333
25709993630,3cyclictest41-21ksoftirqd/310:40:003
25708993630,4cyclictest33-21ksoftirqd/212:37:302
25708993630,4cyclictest33-21ksoftirqd/211:27:582
25708993630,4cyclictest33-21ksoftirqd/209:07:172
25708993630,4cyclictest33-21ksoftirqd/208:59:592
25708993630,4cyclictest33-21ksoftirqd/208:23:452
25708993630,4cyclictest33-21ksoftirqd/207:56:122
25708993629,5cyclictest33-21ksoftirqd/209:46:442
25707993630,4cyclictest25-21ksoftirqd/109:29:061
25707993630,4cyclictest25-21ksoftirqd/108:52:031
25707993630,3cyclictest25-21ksoftirqd/112:27:581
2570699363,3cyclictest121rcu_preempt10:20:000
25706993632,2cyclictest9-21ksoftirqd/010:25:000
25706993631,3cyclictest9-21ksoftirqd/012:00:180
25706993631,3cyclictest9-21ksoftirqd/009:40:250
25706993630,3cyclictest9-21ksoftirqd/012:05:190
25706993629,5cyclictest9-21ksoftirqd/010:04:280
25706993629,4cyclictest9-21ksoftirqd/007:54:420
138491360,12ptp4l401ktimersoftd/307:18:093
138491360,0ptp4l401ktimersoftd/308:50:003
25709993530,3cyclictest41-21ksoftirqd/310:00:413
25709993530,3cyclictest41-21ksoftirqd/308:14:183
25709993529,4cyclictest41-21ksoftirqd/311:09:183
25709993529,4cyclictest41-21ksoftirqd/309:58:453
25709993529,4cyclictest41-21ksoftirqd/308:31:003
25708993530,3cyclictest33-21ksoftirqd/210:08:122
25708993529,4cyclictest33-21ksoftirqd/212:29:252
25708993529,4cyclictest33-21ksoftirqd/209:28:002
25708993529,4cyclictest33-21ksoftirqd/209:11:182
25708993529,4cyclictest33-21ksoftirqd/207:51:232
25707993530,3cyclictest25-21ksoftirqd/110:08:421
25707993529,4cyclictest25-21ksoftirqd/112:30:431
25707993529,4cyclictest25-21ksoftirqd/112:30:431
25707993529,4cyclictest25-21ksoftirqd/109:40:381
25707993529,4cyclictest25-21ksoftirqd/109:08:051
25707993529,4cyclictest25-21ksoftirqd/108:20:471
25706993531,2cyclictest9-21ksoftirqd/011:30:240
25706993531,2cyclictest9-21ksoftirqd/009:10:000
25706993530,3cyclictest9-21ksoftirqd/012:00:000
25706993529,4cyclictest9-21ksoftirqd/012:31:070
25706993529,4cyclictest9-21ksoftirqd/012:31:070
25706993529,4cyclictest9-21ksoftirqd/011:53:280
25706993529,4cyclictest9-21ksoftirqd/010:51:380
25706993529,3cyclictest9-21ksoftirqd/011:30:000
25706993529,3cyclictest9-21ksoftirqd/010:05:200
25709993429,3cyclictest41-21ksoftirqd/311:35:113
25709993429,3cyclictest29217-21egrep11:20:113
25709993428,4cyclictest41-21ksoftirqd/311:56:433
25709993428,4cyclictest41-21ksoftirqd/310:52:163
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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