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2026-07-27 - 08:54
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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 Mon Jul 27, 2026 00:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
72522229163,21sleep20-21swapper/219:07:042
72522229163,21sleep20-21swapper/219:07:042
139491207173,23phc2sys0-21swapper/319:06:583
139491207173,23phc2sys0-21swapper/319:06:583
72412205171,22sleep10-21swapper/119:06:551
72412205171,22sleep10-21swapper/119:06:551
71222201168,22sleep00-21swapper/019:05:300
71222201168,22sleep00-21swapper/019:05:300
1410921630,7sleep0777199cyclictest22:45:140
3197921330,6sleep2777399cyclictest23:20:222
777199554,10cyclictest31131-21mailstats00:25:270
127162550,2sleep30-21swapper/322:40:233
777199546,14cyclictest898-21apt-get23:25:130
777199543,11cyclictest0-21swapper/021:45:280
145942540,7sleep2777399cyclictest23:50:272
186012530,2sleep00-21swapper/022:55:010
777199526,7cyclictest19869-21apt-get21:50:110
777199515,10cyclictest7958-21apt-get21:25:120
777199495,7cyclictest26040-21apt-get20:55:120
186702480,2sleep30-21swapper/300:00:223
777199466,7cyclictest32449-21hddtemp_smartct22:15:160
777199465,7cyclictest18588-21meminfo19:30:200
139391460,0ptp4l401ktimersoftd/320:05:173
777499451,34cyclictest0-21swapper/321:26:413
777199455,7cyclictest23453-21irqstats19:40:190
139391450,0ptp4l401ktimersoftd/322:10:033
777399446,36cyclictest6501-21turbostat22:30:002
777199445,7cyclictest6226-21iostat21:20:200
777199445,13cyclictest1405-21iostat21:10:180
139391440,0ptp4l401ktimersoftd/323:58:023
139391440,0ptp4l401ktimersoftd/319:57:253
777199436,8cyclictest12468-21iostat_ios20:25:180
777199435,7cyclictest24704-21memory20:50:220
139391430,1ptp4l14480-21if_enp1s022:45:173
139391420,0ptp4l401ktimersoftd/323:37:053
139391420,0ptp4l401ktimersoftd/320:25:193
7773994136,3cyclictest207-21systemd-journal22:55:002
7773994134,4cyclictest33-21ksoftirqd/200:01:032
7772994134,4cyclictest17373-21cron00:00:001
777199415,6cyclictest25604-21iostat00:15:180
777199406,8cyclictest23207-21runrttasks20:47:150
777499390,3cyclictest24728-21turbostat00:19:563
777499390,3cyclictest18197-21taskset22:52:293
139391390,32ptp4l0-21swapper/319:10:013
777299380,2cyclictest0-21swapper/100:30:431
7774993731,4cyclictest41-21ksoftirqd/320:58:093
7772993731,4cyclictest25-21ksoftirqd/123:12:351
7772993731,4cyclictest25-21ksoftirqd/121:57:371
7772993730,5cyclictest25-21ksoftirqd/122:30:001
7771993730,5cyclictest9-21ksoftirqd/020:40:010
7774993630,4cyclictest41-21ksoftirqd/323:53:453
7774993630,4cyclictest41-21ksoftirqd/321:11:173
7774993629,4cyclictest6475-21cron22:29:593
777499360,3cyclictest2933-21taskset23:28:003
7773993631,3cyclictest33-21ksoftirqd/222:00:002
7773993630,4cyclictest33-21ksoftirqd/220:07:062
777199364,7cyclictest5388-21meminfo22:25:210
57898360,5rtkit-daemon30521-21chrt21:04:400
7774993530,3cyclictest41-21ksoftirqd/320:30:113
7774993529,4cyclictest41-21ksoftirqd/323:41:173
7774993529,4cyclictest41-21ksoftirqd/322:01:393
7774993529,4cyclictest41-21ksoftirqd/320:23:273
7774993529,4cyclictest41-21ksoftirqd/319:35:333
7774993529,4cyclictest41-21ksoftirqd/300:26:053
7773993530,3cyclictest33-21ksoftirqd/200:10:132
7773993529,4cyclictest33-21ksoftirqd/219:34:122
7773993529,4cyclictest33-21ksoftirqd/219:27:262
7773993529,4cyclictest33-21ksoftirqd/219:12:262
7773993528,5cyclictest33-21ksoftirqd/220:33:132
7772993529,4cyclictest25-21ksoftirqd/123:49:291
7772993529,4cyclictest25-21ksoftirqd/123:04:321
7772993529,4cyclictest25-21ksoftirqd/122:51:371
7772993529,4cyclictest25-21ksoftirqd/120:00:111
7772993529,4cyclictest25-21ksoftirqd/119:34:351
7772993528,4cyclictest25-21ksoftirqd/119:55:531
7771993529,4cyclictest9-21ksoftirqd/020:17:350
7771993528,4cyclictest9-21ksoftirqd/023:30:310
7774993429,3cyclictest41-21ksoftirqd/321:50:113
7774993429,3cyclictest41-21ksoftirqd/300:36:093
7774993428,4cyclictest41-21ksoftirqd/323:14:333
7774993428,4cyclictest41-21ksoftirqd/321:03:073
7774993428,4cyclictest41-21ksoftirqd/319:50:343
7774993428,4cyclictest41-21ksoftirqd/319:49:333
7774993428,4cyclictest41-21ksoftirqd/319:26:473
7774993426,6cyclictest41-21ksoftirqd/321:46:323
777499340,4cyclictest5303-21taskset21:19:553
7773993429,3cyclictest33-21ksoftirqd/222:19:402
7773993428,4cyclictest33-21ksoftirqd/223:26:522
7773993428,4cyclictest33-21ksoftirqd/222:48:172
7773993428,4cyclictest33-21ksoftirqd/222:04:562
7773993428,4cyclictest33-21ksoftirqd/221:32:512
7773993428,4cyclictest33-21ksoftirqd/221:22:282
7773993428,4cyclictest33-21ksoftirqd/219:49:162
7773993427,4cyclictest23891-21systemctl19:40:242
7772993429,3cyclictest25-21ksoftirqd/120:58:521
7772993429,3cyclictest25-21ksoftirqd/120:54:261
7772993429,3cyclictest25-21ksoftirqd/119:18:221
7772993428,4cyclictest25-21ksoftirqd/122:41:221
7772993428,4cyclictest25-21ksoftirqd/122:22:201
7772993428,4cyclictest25-21ksoftirqd/120:28:591
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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