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2026-05-07 - 19:24
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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 Thu May 07, 2026 12:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3182122100,4sleep30-21swapper/307:05:123
10062202169,22sleep00-21swapper/007:07:030
9462201169,21sleep20-21swapper/207:06:172
11812201167,23sleep10-21swapper/107:09:211
138491660,1ptp4l401ktimersoftd/311:24:493
271412640,2sleep20-21swapper/210:10:182
271412640,2sleep20-21swapper/210:10:182
138491540,1ptp4l401ktimersoftd/310:40:223
50798490,11rtkit-daemon0-21swapper/009:07:270
143582490,2sleep00-21swapper/009:45:130
314212470,2sleep00-21swapper/012:30:120
71942460,1sleep20-21swapper/207:20:172
1549994627,7cyclictest41-21ksoftirqd/311:28:143
138491450,0ptp4l401ktimersoftd/307:13:013
138491420,0ptp4l401ktimersoftd/310:14:573
138491420,0ptp4l401ktimersoftd/310:14:573
138491420,0ptp4l401ktimersoftd/309:19:053
1547994033,5cyclictest25-21ksoftirqd/107:35:121
138491400,0ptp4l401ktimersoftd/312:05:163
1547993932,4cyclictest25-21ksoftirqd/111:35:001
50798380,3rtkit-daemon29400-21hddtemp_smartct10:15:161
1549993731,4cyclictest41-21ksoftirqd/307:32:333
1548993731,4cyclictest33-21ksoftirqd/211:52:112
1548993730,4cyclictest33-21ksoftirqd/209:04:002
1547993732,3cyclictest25-21ksoftirqd/107:50:111
1546993731,4cyclictest9-21ksoftirqd/009:40:310
1546993731,4cyclictest9-21ksoftirqd/009:40:310
1546993731,3cyclictest9861-21irqrtprio09:35:190
1549993631,3cyclictest41-21ksoftirqd/311:05:183
1549993630,4cyclictest41-21ksoftirqd/310:17:173
1549993630,4cyclictest41-21ksoftirqd/309:24:343
1549993630,4cyclictest41-21ksoftirqd/309:05:403
1549993630,4cyclictest41-21ksoftirqd/309:01:023
1549993630,4cyclictest41-21ksoftirqd/308:12:373
1549993630,4cyclictest41-21ksoftirqd/308:12:373
1548993631,3cyclictest33-21ksoftirqd/208:35:112
1548993631,3cyclictest33-21ksoftirqd/208:14:002
1548993631,3cyclictest33-21ksoftirqd/208:14:002
1548993630,4cyclictest33-21ksoftirqd/212:06:562
1548993630,4cyclictest33-21ksoftirqd/211:13:042
1548993630,4cyclictest33-21ksoftirqd/211:13:032
1548993630,4cyclictest33-21ksoftirqd/207:44:522
1548993630,4cyclictest33-21ksoftirqd/207:36:052
1547993630,4cyclictest25-21ksoftirqd/112:20:461
1547993630,4cyclictest25-21ksoftirqd/110:32:151
1547993630,4cyclictest25-21ksoftirqd/109:59:341
1547993630,4cyclictest25-21ksoftirqd/107:21:001
1547993629,4cyclictest25-21ksoftirqd/111:24:351
1546993626,4cyclictest9-21ksoftirqd/010:10:520
1546993626,4cyclictest9-21ksoftirqd/010:10:520
1549993529,4cyclictest41-21ksoftirqd/311:01:253
1549993529,4cyclictest41-21ksoftirqd/310:46:343
1549993529,4cyclictest41-21ksoftirqd/310:21:583
1549993529,4cyclictest41-21ksoftirqd/309:25:343
1549993529,4cyclictest41-21ksoftirqd/308:51:313
1549993529,4cyclictest41-21ksoftirqd/308:19:353
1548993530,3cyclictest33-21ksoftirqd/207:12:332
1548993529,4cyclictest33-21ksoftirqd/211:28:562
1548993529,4cyclictest33-21ksoftirqd/210:18:282
1548993529,4cyclictest33-21ksoftirqd/210:06:092
1548993529,4cyclictest33-21ksoftirqd/208:24:232
1548993529,4cyclictest33-21ksoftirqd/207:26:142
1547993530,3cyclictest25-21ksoftirqd/112:05:051
1547993530,3cyclictest25-21ksoftirqd/110:05:121
1547993529,4cyclictest25-21ksoftirqd/112:31:501
1547993529,4cyclictest25-21ksoftirqd/111:26:511
1547993529,4cyclictest25-21ksoftirqd/109:11:401
1547993529,4cyclictest25-21ksoftirqd/109:11:401
1547993529,3cyclictest1303-21runrttasks08:13:541
1547993529,3cyclictest1303-21runrttasks08:13:531
1546993530,3cyclictest9-21ksoftirqd/011:38:290
1546993530,3cyclictest9-21ksoftirqd/011:15:100
1549993429,3cyclictest41-21ksoftirqd/311:56:333
1549993428,4cyclictest41-21ksoftirqd/309:58:523
1549993428,4cyclictest41-21ksoftirqd/309:37:573
1549993428,4cyclictest41-21ksoftirqd/308:29:383
1549993428,4cyclictest41-21ksoftirqd/307:22:423
1548993429,3cyclictest33-21ksoftirqd/212:28:062
1548993429,3cyclictest33-21ksoftirqd/212:20:102
1548993428,4cyclictest33-21ksoftirqd/210:49:092
1548993428,4cyclictest33-21ksoftirqd/210:41:462
1548993428,4cyclictest33-21ksoftirqd/210:36:492
1548993428,4cyclictest33-21ksoftirqd/210:32:162
1548993428,4cyclictest33-21ksoftirqd/210:27:382
1548993428,3cyclictest33-21ksoftirqd/211:08:592
1547993429,3cyclictest25-21ksoftirqd/110:20:151
1547993429,3cyclictest25-21ksoftirqd/109:55:011
1547993428,4cyclictest25-21ksoftirqd/111:58:331
1547993428,4cyclictest25-21ksoftirqd/111:11:551
1547993428,4cyclictest25-21ksoftirqd/111:11:541
1547993428,3cyclictest25-21ksoftirqd/112:35:191
1547993428,3cyclictest25-21ksoftirqd/111:50:011
1547993427,4cyclictest25-21ksoftirqd/111:42:521
1547993427,4cyclictest25-21ksoftirqd/111:42:521
1547993427,4cyclictest25-21ksoftirqd/108:33:371
1546993428,4cyclictest9-21ksoftirqd/010:40:320
1546993428,4cyclictest9-21ksoftirqd/009:16:070
1546993428,4cyclictest9-21ksoftirqd/009:10:590
1546993428,4cyclictest9-21ksoftirqd/009:10:590
1546993428,4cyclictest9-21ksoftirqd/008:50:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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