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2026-07-09 - 23:36
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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 09, 2026 12:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491235168,22phc2sys0-21swapper/307:09:013
64852232168,22sleep20-21swapper/207:06:032
67242202169,22sleep00-21swapper/007:09:100
64892202169,22sleep10-21swapper/107:06:051
2049821310,2sleep20-21swapper/212:05:242
80712640,3sleep10-21swapper/107:10:181
7092996334,3cyclictest41-21ksoftirqd/312:05:233
7092996025,4cyclictest41-21ksoftirqd/311:00:013
7092995820,8cyclictest41-21ksoftirqd/311:25:003
32362580,3sleep30-21swapper/310:25:003
7092995728,7cyclictest41-21ksoftirqd/311:15:003
7092995624,7cyclictest41-21ksoftirqd/308:10:013
708999567,12cyclictest908-21grep09:10:240
7092995425,4cyclictest41-21ksoftirqd/308:35:263
7092995324,6cyclictest41-21ksoftirqd/310:10:163
7092995317,4cyclictest41-21ksoftirqd/307:15:003
708999533,9cyclictest31011-21grep08:00:010
708999533,10cyclictest18578-21cron12:05:000
7092995221,4cyclictest41-21ksoftirqd/311:30:223
7092995217,3cyclictest41-21ksoftirqd/307:15:203
7092995123,4cyclictest41-21ksoftirqd/310:00:133
7092995122,7cyclictest41-21ksoftirqd/311:35:223
7092995119,4cyclictest41-21ksoftirqd/312:00:003
708999513,8cyclictest6969-21apt-get11:40:120
709299509,9cyclictest41-21ksoftirqd/307:49:593
7092995022,7cyclictest41-21ksoftirqd/311:15:213
7092995022,7cyclictest41-21ksoftirqd/307:50:263
7092995019,4cyclictest41-21ksoftirqd/309:40:263
7092995019,4cyclictest41-21ksoftirqd/309:40:263
7092995012,10cyclictest41-21ksoftirqd/309:30:003
708999501,16cyclictest18872-21sshd09:50:000
708999500,10cyclictest11241-21irqrtprio10:40:180
7092994923,7cyclictest41-21ksoftirqd/312:35:183
7092994921,7cyclictest41-21ksoftirqd/307:20:143
7092994921,3cyclictest41-21ksoftirqd/310:15:193
7092994920,7cyclictest41-21ksoftirqd/310:50:193
7092994917,3cyclictest41-21ksoftirqd/307:40:273
708999491,11cyclictest16847-21sed10:50:270
709299489,5cyclictest41-21ksoftirqd/312:10:123
7092994821,7cyclictest41-21ksoftirqd/308:00:143
7092994821,7cyclictest41-21ksoftirqd/308:00:133
7092994818,3cyclictest41-21ksoftirqd/307:35:153
7092994817,10cyclictest41-21ksoftirqd/309:50:253
7092994812,8cyclictest41-21ksoftirqd/308:40:223
7092994811,8cyclictest41-21ksoftirqd/312:25:143
708999480,14cyclictest11668-21ls08:25:200
7092994720,6cyclictest41-21ksoftirqd/310:35:003
7092994715,4cyclictest41-21ksoftirqd/308:10:193
7092994713,6cyclictest41-21ksoftirqd/309:15:173
7092994713,3cyclictest41-21ksoftirqd/309:45:213
708999476,5cyclictest0-21swapper/009:30:180
167422470,1sleep10-21swapper/110:50:251
7092994637,3cyclictest41-21ksoftirqd/312:20:263
7092994619,4cyclictest41-21ksoftirqd/309:09:563
7092994617,3cyclictest41-21ksoftirqd/308:54:413
7092994529,2cyclictest41-21ksoftirqd/309:20:143
7092994520,7cyclictest41-21ksoftirqd/308:20:133
7092994519,6cyclictest41-21ksoftirqd/311:25:273
7092994519,4cyclictest41-21ksoftirqd/309:02:223
7092994517,7cyclictest41-21ksoftirqd/312:00:143
7092994517,7cyclictest41-21ksoftirqd/309:40:003
7092994516,4cyclictest41-21ksoftirqd/311:40:213
7092994515,3cyclictest41-21ksoftirqd/309:00:003
7092994510,10cyclictest41-21ksoftirqd/311:45:143
708999450,6cyclictest25256-21diskstats08:55:130
7092994431,11cyclictest41-21ksoftirqd/308:45:233
7092994419,7cyclictest41-21ksoftirqd/309:55:183
7092994413,4cyclictest41-21ksoftirqd/312:15:453
7092994413,3cyclictest41-21ksoftirqd/311:05:133
7092994411,7cyclictest41-21ksoftirqd/309:10:153
708999440,16cyclictest22003-21taskset08:46:510
709299439,4cyclictest41-21ksoftirqd/310:40:003
7092994310,8cyclictest41-21ksoftirqd/310:05:133
7092994216,4cyclictest41-21ksoftirqd/310:26:153
7092994213,4cyclictest41-21ksoftirqd/308:25:153
709299414,2cyclictest121rcu_preempt10:43:033
709299412,2cyclictest121rcu_preempt08:32:433
709299412,2cyclictest121rcu_preempt07:55:223
7092994111,6cyclictest41-21ksoftirqd/312:30:133
139391410,0ptp4l401ktimersoftd/310:45:223
709299404,2cyclictest121rcu_preempt08:15:203
7091994034,4cyclictest33-21ksoftirqd/209:50:092
708999402,7cyclictest24979-21memory07:45:200
708999401,14cyclictest2518-21gnome-shell12:29:590
708999401,14cyclictest2518-21gnome-shell11:33:590
7090993934,3cyclictest25-21ksoftirqd/112:00:001
7090993934,3cyclictest25-21ksoftirqd/107:40:001
708999393,14cyclictest1359-21df12:35:130
708999390,7cyclictest3526-21ssh09:15:270
7092993834,2cyclictest41-21ksoftirqd/311:05:003
7092993833,3cyclictest41-21ksoftirqd/307:30:013
7092993832,4cyclictest41-21ksoftirqd/311:53:343
709299380,6cyclictest121rcu_preempt09:30:253
708999381,7cyclictest8663-21df_inode08:20:140
7090993732,3cyclictest25-21ksoftirqd/111:40:191
7090993732,2cyclictest25-21ksoftirqd/108:45:001
7090993731,4cyclictest25-21ksoftirqd/110:55:311
7090993731,4cyclictest25-21ksoftirqd/109:08:411
7090993730,4cyclictest25-21ksoftirqd/112:10:121
709299361,2cyclictest121rcu_preempt07:30:273
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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