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2026-03-31 - 22:22
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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 Tue Mar 31, 2026 12:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591203168,23phc2sys0-21swapper/307:07:383
178082201167,23sleep10-21swapper/107:09:001
177712201167,23sleep20-21swapper/207:08:332
175952198165,22sleep00-21swapper/007:06:140
2285521560,6sleep11818599cyclictest11:35:291
212421480,4sleep11818599cyclictest12:00:191
138491670,1ptp4l401ktimersoftd/308:16:223
29652640,6sleep09-21ksoftirqd/009:50:250
138491570,1ptp4l391rcuc/308:55:173
138491520,1ptp4l401ktimersoftd/308:09:233
138491500,1ptp4l401ktimersoftd/312:37:013
50798480,2rtkit-daemon506-21rtkit-daemon10:59:121
304022470,1sleep30-21swapper/308:35:263
138491450,0ptp4l401ktimersoftd/309:06:253
138491420,0ptp4l401ktimersoftd/309:11:183
138491410,0ptp4l401ktimersoftd/310:30:123
135191410,6getstats1818799cyclictest11:29:453
18185994032,5cyclictest25-21ksoftirqd/109:20:001
18185994029,10cyclictest25-21ksoftirqd/109:30:261
1818599400,37cyclictest15907-21sshd10:19:281
18184994034,4cyclictest28626-21latency_hist09:39:590
138491400,0ptp4l401ktimersoftd/307:25:123
18187993932,4cyclictest41-21ksoftirqd/311:15:253
18186993910,27cyclictest0-21swapper/208:45:332
18185993933,3cyclictest25-21ksoftirqd/111:25:141
18187993833,3cyclictest41-21ksoftirqd/311:25:013
18187993833,3cyclictest41-21ksoftirqd/310:00:013
1818699380,36cyclictest0-21swapper/212:25:332
1818699380,36cyclictest0-21swapper/211:50:332
1818699380,36cyclictest0-21swapper/210:45:222
18185993833,3cyclictest25-21ksoftirqd/110:45:001
18185993831,4cyclictest25-21ksoftirqd/111:25:011
18185993828,9cyclictest25-21ksoftirqd/109:40:281
18187993732,3cyclictest41-21ksoftirqd/310:43:093
18187993731,4cyclictest41-21ksoftirqd/312:10:173
18186993732,3cyclictest33-21ksoftirqd/212:40:002
18186993731,4cyclictest33-21ksoftirqd/210:15:002
18186993731,4cyclictest33-21ksoftirqd/208:09:182
18186993731,4cyclictest33-21ksoftirqd/207:40:332
18186993730,5cyclictest33-21ksoftirqd/211:05:012
1818699370,36cyclictest0-21swapper/209:20:232
18185993731,4cyclictest25-21ksoftirqd/111:58:301
18185993731,4cyclictest25-21ksoftirqd/109:40:001
18185993730,4cyclictest25-21ksoftirqd/107:10:071
138491370,0ptp4l401ktimersoftd/311:45:263
138491370,0ptp4l401ktimersoftd/311:45:263
18187993630,4cyclictest41-21ksoftirqd/310:24:143
18186993630,4cyclictest33-21ksoftirqd/211:45:522
18186993630,4cyclictest33-21ksoftirqd/211:45:522
18186993630,4cyclictest33-21ksoftirqd/210:18:062
18186993630,4cyclictest33-21ksoftirqd/210:04:552
18186993630,4cyclictest33-21ksoftirqd/209:14:232
18186993630,4cyclictest33-21ksoftirqd/207:45:112
18185993632,3cyclictest25-21ksoftirqd/108:50:001
18185993632,2cyclictest25-21ksoftirqd/111:35:001
18185993631,3cyclictest25-21ksoftirqd/111:50:191
18185993631,3cyclictest25-21ksoftirqd/109:45:241
18185993631,3cyclictest25-21ksoftirqd/109:45:231
18185993631,3cyclictest25-21ksoftirqd/107:55:131
18185993631,2cyclictest25-21ksoftirqd/111:40:181
18185993631,2cyclictest25-21ksoftirqd/108:34:591
18185993630,4cyclictest25-21ksoftirqd/110:13:571
18185993630,4cyclictest25-21ksoftirqd/109:25:551
18185993630,3cyclictest25-21ksoftirqd/110:30:131
18184993632,3cyclictest9-21ksoftirqd/011:19:160
18184993630,4cyclictest9-21ksoftirqd/008:36:400
18187993530,3cyclictest41-21ksoftirqd/309:20:113
18187993529,4cyclictest41-21ksoftirqd/312:02:433
18187993529,4cyclictest41-21ksoftirqd/311:51:383
18187993529,4cyclictest41-21ksoftirqd/309:54:533
18187993529,4cyclictest41-21ksoftirqd/309:35:123
18187993529,4cyclictest41-21ksoftirqd/308:10:353
18187993528,4cyclictest41-21ksoftirqd/311:07:313
18186993530,3cyclictest33-21ksoftirqd/208:57:262
18186993530,3cyclictest33-21ksoftirqd/208:25:012
18186993529,4cyclictest33-21ksoftirqd/211:43:512
18186993529,4cyclictest33-21ksoftirqd/211:08:412
18186993529,4cyclictest33-21ksoftirqd/210:31:512
18186993529,4cyclictest33-21ksoftirqd/210:06:082
18186993529,4cyclictest33-21ksoftirqd/208:14:192
18186993528,5cyclictest33-21ksoftirqd/208:35:492
1818599355,4cyclictest25-21ksoftirqd/109:50:261
18185993531,3cyclictest25-21ksoftirqd/110:25:131
18185993531,3cyclictest25-21ksoftirqd/107:35:091
18185993531,2cyclictest25-21ksoftirqd/107:50:131
18185993530,3cyclictest25-21ksoftirqd/112:35:111
18185993530,3cyclictest25-21ksoftirqd/112:30:011
18185993530,3cyclictest25-21ksoftirqd/112:05:191
18185993530,3cyclictest25-21ksoftirqd/110:00:011
18185993530,3cyclictest25-21ksoftirqd/109:05:151
18185993530,3cyclictest25-21ksoftirqd/109:00:111
18185993530,3cyclictest25-21ksoftirqd/108:55:091
18185993530,3cyclictest25-21ksoftirqd/108:14:161
18185993530,3cyclictest25-21ksoftirqd/107:32:421
18185993529,3cyclictest25-21ksoftirqd/111:15:141
18185993529,3cyclictest25-21ksoftirqd/110:55:011
18185993529,3cyclictest25-21ksoftirqd/107:45:011
18185993528,5cyclictest25-21ksoftirqd/112:24:231
18185993528,4cyclictest25-21ksoftirqd/111:00:181
18184993530,3cyclictest9-21ksoftirqd/010:44:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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