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2026-05-31 - 03:38
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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 Sun May 31, 2026 00:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
36322204169,23sleep30-21swapper/319:06:033
36362203171,21sleep20-21swapper/219:06:072
36152201168,22sleep10-21swapper/119:05:501
36142200166,22sleep00-21swapper/019:05:490
2903621580,4sleep0423599cyclictest23:15:010
138491770,2ptp4l13350irq/39-mmc119:10:233
4236996510,21cyclictest8710-21seq19:16:351
51632580,3sleep00-21swapper/023:30:170
4237995630,7cyclictest33-21ksoftirqd/222:15:002
4237995628,7cyclictest33-21ksoftirqd/200:20:002
4237995626,4cyclictest33-21ksoftirqd/200:25:252
4237995526,3cyclictest33-21ksoftirqd/219:35:132
4237995525,4cyclictest33-21ksoftirqd/219:25:002
4237995523,4cyclictest33-21ksoftirqd/222:50:002
4237995427,7cyclictest33-21ksoftirqd/223:45:012
4237995324,17cyclictest33-21ksoftirqd/223:05:152
4237995226,3cyclictest33-21ksoftirqd/219:25:212
4237995222,4cyclictest33-21ksoftirqd/219:10:222
4237995221,3cyclictest33-21ksoftirqd/220:00:242
423599520,15cyclictest26789-21apt-get00:15:120
4237995125,4cyclictest33-21ksoftirqd/220:10:212
4237995124,3cyclictest33-21ksoftirqd/219:40:252
4237995121,4cyclictest33-21ksoftirqd/221:40:192
4237995120,5cyclictest33-21ksoftirqd/220:20:122
4237995023,7cyclictest33-21ksoftirqd/223:20:002
4237995020,4cyclictest33-21ksoftirqd/220:30:172
4237995020,4cyclictest33-21ksoftirqd/220:30:162
4237995018,3cyclictest33-21ksoftirqd/221:00:172
4238994943,4cyclictest1638-21sh20:10:013
423799497,4cyclictest33-21ksoftirqd/220:10:012
4237994932,9cyclictest33-21ksoftirqd/222:50:252
4237994923,6cyclictest33-21ksoftirqd/220:00:012
4237994920,4cyclictest33-21ksoftirqd/223:00:002
4237994918,4cyclictest33-21ksoftirqd/220:40:152
4237994914,6cyclictest33-21ksoftirqd/220:50:122
4237994911,9cyclictest33-21ksoftirqd/221:30:212
4237994822,4cyclictest33-21ksoftirqd/219:20:002
4237994818,3cyclictest33-21ksoftirqd/221:45:192
4237994814,4cyclictest33-21ksoftirqd/200:05:232
423599480,18cyclictest1423-21date21:15:000
423799473,3cyclictest121rcu_preempt23:00:222
4237994723,7cyclictest33-21ksoftirqd/221:30:012
4237994723,7cyclictest33-21ksoftirqd/221:30:012
4237994722,7cyclictest33-21ksoftirqd/200:35:172
4237994714,4cyclictest33-21ksoftirqd/222:25:132
4236994742,3cyclictest23988-21latency_hist19:50:011
423799464,2cyclictest33-21ksoftirqd/220:25:282
4237994626,2cyclictest33-21ksoftirqd/223:25:142
4237994616,8cyclictest33-21ksoftirqd/200:20:122
4237994615,6cyclictest33-21ksoftirqd/220:15:122
4237994615,3cyclictest33-21ksoftirqd/220:35:252
4237994614,10cyclictest33-21ksoftirqd/200:10:162
4237994612,7cyclictest33-21ksoftirqd/220:55:192
423599467,6cyclictest19148-21cat00:00:000
423599460,8cyclictest14299-21apt-get20:35:120
4237994517,4cyclictest33-21ksoftirqd/221:10:142
4237994516,4cyclictest33-21ksoftirqd/223:50:222
4237994515,8cyclictest33-21ksoftirqd/222:00:012
4237994513,3cyclictest33-21ksoftirqd/221:15:152
423799442,2cyclictest33-21ksoftirqd/223:15:002
4237994420,3cyclictest33-21ksoftirqd/223:25:002
4237994419,7cyclictest33-21ksoftirqd/221:50:172
4237994418,4cyclictest33-21ksoftirqd/219:45:162
4237994418,10cyclictest33-21ksoftirqd/221:05:132
4237994417,4cyclictest33-21ksoftirqd/222:33:372
4237994417,3cyclictest33-21ksoftirqd/222:20:262
4237994415,7cyclictest33-21ksoftirqd/223:35:142
4237994414,3cyclictest33-21ksoftirqd/223:30:122
4237994413,9cyclictest33-21ksoftirqd/223:55:142
4237994411,3cyclictest33-21ksoftirqd/222:00:282
423699444,37cyclictest16785-21wc20:40:121
320512440,1sleep30-21swapper/321:10:153
423799438,4cyclictest33-21ksoftirqd/223:45:192
4237994313,9cyclictest33-21ksoftirqd/220:45:202
4237994236,3cyclictest33-21ksoftirqd/222:09:592
4237994225,9cyclictest33-21ksoftirqd/200:35:002
4237994223,9cyclictest33-21ksoftirqd/219:30:222
4237994223,9cyclictest33-21ksoftirqd/219:30:222
4237994213,10cyclictest33-21ksoftirqd/222:15:142
140322420,1sleep00-21swapper/021:40:130
138491420,0ptp4l401ktimersoftd/319:40:223
4237994136,3cyclictest33-21ksoftirqd/222:40:002
4237994136,3cyclictest33-21ksoftirqd/200:05:002
4237994113,7cyclictest33-21ksoftirqd/219:50:132
4236994134,4cyclictest6384-21cron23:35:001
138491410,0ptp4l401ktimersoftd/322:56:593
138491410,0ptp4l401ktimersoftd/322:24:023
423799404,4cyclictest33-21ksoftirqd/221:22:532
4237994029,2cyclictest33-21ksoftirqd/221:35:232
423599401,7cyclictest7354-21hddtemp_smartct19:15:150
138491400,1ptp4l401ktimersoftd/319:35:533
138491400,0ptp4l401ktimersoftd/300:05:053
4237993934,3cyclictest33-21ksoftirqd/222:40:212
138491390,0ptp4l401ktimersoftd/323:10:043
423899381,34cyclictest16228-21cron21:45:013
4236993832,4cyclictest25-21ksoftirqd/119:57:491
423599380,7cyclictest32235-21if_enp1s023:20:160
423599380,7cyclictest23607-21apt-get22:00:030
138491380,0ptp4l401ktimersoftd/322:05:133
4238993732,3cyclictest41-21ksoftirqd/322:11:583
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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