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2026-07-23 - 22:32
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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 rackdslot3.osadl.org (updated Thu Jul 23, 2026 12:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
213182227163,20sleep00-21swapper/007:06:470
213062226163,51sleep30-21swapper/307:06:383
213402200166,23sleep20-21swapper/207:07:052
212772200167,22sleep10-21swapper/107:06:161
2186799700,30cyclictest15257-21df_abs09:10:140
2186899620,3cyclictest6191-21seq09:58:211
21869996031,7cyclictest33-21ksoftirqd/210:40:002
21869995931,4cyclictest33-21ksoftirqd/212:00:142
21869995625,7cyclictest33-21ksoftirqd/207:20:002
2186799561,24cyclictest4657-21fschecks_time09:55:140
21869995527,6cyclictest33-21ksoftirqd/212:10:012
21869995526,7cyclictest33-21ksoftirqd/208:10:002
21869995517,10cyclictest33-21ksoftirqd/211:35:252
21869995417,6cyclictest33-21ksoftirqd/208:55:262
21869995323,3cyclictest33-21ksoftirqd/211:00:132
21869995322,4cyclictest33-21ksoftirqd/209:25:152
21869995318,7cyclictest33-21ksoftirqd/210:10:132
21869995316,8cyclictest33-21ksoftirqd/211:10:142
151462530,2sleep30-21swapper/309:10:143
21869995221,4cyclictest33-21ksoftirqd/209:05:132
21869995217,6cyclictest33-21ksoftirqd/207:40:002
21869995123,7cyclictest33-21ksoftirqd/212:29:592
21869995123,3cyclictest33-21ksoftirqd/212:20:172
21869995122,7cyclictest33-21ksoftirqd/208:00:222
2186799510,24cyclictest6071-21ssh12:10:260
139391510,1ptp4l401ktimersoftd/308:40:213
21869995019,4cyclictest33-21ksoftirqd/209:10:132
21869995019,3cyclictest33-21ksoftirqd/211:20:132
21869994922,7cyclictest33-21ksoftirqd/208:45:152
21869994918,4cyclictest33-21ksoftirqd/212:10:152
21869994911,8cyclictest33-21ksoftirqd/208:40:132
21869994823,6cyclictest33-21ksoftirqd/212:35:202
21869994823,6cyclictest33-21ksoftirqd/212:35:202
21869994822,6cyclictest33-21ksoftirqd/211:05:172
21869994820,3cyclictest33-21ksoftirqd/211:55:212
21869994820,3cyclictest33-21ksoftirqd/211:55:202
2186899470,3cyclictest31868-21chrt10:50:251
21869994626,17cyclictest33-21ksoftirqd/211:44:592
21869994620,4cyclictest33-21ksoftirqd/212:15:182
21869994619,7cyclictest33-21ksoftirqd/210:15:172
21869994613,6cyclictest33-21ksoftirqd/210:05:122
21869994518,3cyclictest33-21ksoftirqd/211:15:122
21869994517,3cyclictest33-21ksoftirqd/209:55:112
21869994517,3cyclictest33-21ksoftirqd/209:45:172
21869994513,4cyclictest33-21ksoftirqd/211:30:262
21869994510,5cyclictest33-21ksoftirqd/211:45:242
2186899450,3cyclictest5647-21chrt07:40:541
2186899450,3cyclictest24870-21taskset08:21:041
139391450,0ptp4l401ktimersoftd/309:50:353
21869994412,4cyclictest33-21ksoftirqd/208:35:272
1394914434,3phc2sys0-21swapper/307:10:013
21869994316,4cyclictest33-21ksoftirqd/209:37:562
21869994315,7cyclictest33-21ksoftirqd/209:50:512
21869994315,7cyclictest33-21ksoftirqd/209:20:262
21869994315,4cyclictest33-21ksoftirqd/210:30:252
21869994312,8cyclictest33-21ksoftirqd/208:15:142
21869994312,8cyclictest33-21ksoftirqd/207:15:012
21869994312,4cyclictest33-21ksoftirqd/207:20:272
21869994310,3cyclictest33-21ksoftirqd/210:45:272
2186999429,6cyclictest33-21ksoftirqd/207:30:252
2186999428,10cyclictest33-21ksoftirqd/210:25:002
21869994237,2cyclictest321ktimersoftd/207:45:292
21869994236,3cyclictest33-21ksoftirqd/208:00:002
21869994223,10cyclictest33-21ksoftirqd/208:25:012
21869994217,7cyclictest33-21ksoftirqd/210:40:222
21869994215,4cyclictest33-21ksoftirqd/209:17:342
21869994215,4cyclictest33-21ksoftirqd/209:17:342
21869994214,3cyclictest33-21ksoftirqd/210:53:212
21869994213,7cyclictest33-21ksoftirqd/209:00:232
21869994212,4cyclictest33-21ksoftirqd/208:25:142
21869994210,4cyclictest33-21ksoftirqd/208:50:162
139391420,0ptp4l401ktimersoftd/308:22:333
2186999416,6cyclictest33-21ksoftirqd/211:50:002
21869994124,9cyclictest33-21ksoftirqd/209:40:152
21869994114,4cyclictest33-21ksoftirqd/210:00:102
21869994110,4cyclictest33-21ksoftirqd/208:30:132
21869994110,10cyclictest33-21ksoftirqd/207:25:222
2186799410,21cyclictest11574-21awk07:55:170
2157624132,4sleep00-21swapper/007:10:010
139391410,0ptp4l401ktimersoftd/312:25:173
2186999406,6cyclictest33-21ksoftirqd/207:40:232
2186999403,3cyclictest33-21ksoftirqd/210:25:192
21869994012,4cyclictest33-21ksoftirqd/210:55:142
21869993923,4cyclictest33-21ksoftirqd/207:54:592
21869993913,6cyclictest33-21ksoftirqd/208:10:132
2186899393,25cyclictest0-21swapper/107:38:081
2186799390,18cyclictest0-21swapper/009:15:160
2186799390,18cyclictest0-21swapper/009:15:160
2186999385,4cyclictest33-21ksoftirqd/212:30:212
2186999384,2cyclictest121rcu_preempt09:30:162
2186999381,10cyclictest33-21ksoftirqd/211:25:002
21868993832,4cyclictest25-21ksoftirqd/109:53:521
2186899381,3cyclictest20230-21seq08:12:421
2186899381,26cyclictest0-21swapper/109:47:331
2186899381,22cyclictest10857-21seq07:54:211
2186899380,3cyclictest19243-21runrttasks11:30:591
2186799381,25cyclictest20456-21iostat_ios11:35:190
21868993731,4cyclictest25-21ksoftirqd/111:29:241
2186799370,23cyclictest26310-21uptime11:45:270
139391370,0ptp4l401ktimersoftd/312:20:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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