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2025-05-02 - 12:39
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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 rackdslot2.osadl.org (updated Fri May 02, 2025 00:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
82812214170,33sleep10-21swapper/119:09:031
137391209176,22phc2sys0-21swapper/319:07:133
61782208174,22sleep20-21swapper/219:05:092
81832204171,22sleep00-21swapper/019:07:440
865199762,33cyclictest22540-21latency_hist21:55:002
865199690,25cyclictest28324-21apt-config21:00:012
865199690,25cyclictest28324-21apt-config21:00:012
865199690,23cyclictest24338-21grep20:50:212
865199680,24cyclictest20176-21grep20:40:292
865199670,30cyclictest22067-21grep00:05:282
865199661,24cyclictest12421-21grep19:15:252
865199660,23cyclictest6261-21grep21:20:222
865199651,24cyclictest13099-21phc2sys-jitter20:25:252
865199651,24cyclictest13099-21phc2sys-jitter20:25:252
865199651,22cyclictest24905-21apt-get22:00:002
865199650,26cyclictest0-21swapper/219:15:002
865199650,25cyclictest22185-21sed19:35:272
865199650,25cyclictest17068-21grep23:55:232
865199650,23cyclictest18805-21ls22:50:292
865199641,25cyclictest27805-21wc00:20:002
865199640,23cyclictest32198-21cut21:05:252
109772640,2sleep1865099cyclictest21:30:201
865199630,25cyclictest19419-21find21:45:262
865199630,25cyclictest1876-21sed23:25:152
865199630,24cyclictest19793-21tail19:30:272
865199630,24cyclictest12670-21cstates22:40:142
865199630,23cyclictest4750-21cut23:30:222
865199630,23cyclictest31422-21phc2sys00:25:242
865199620,24cyclictest7318-21sed23:35:212
865199620,23cyclictest8846-21cpuspeed_turbos23:40:142
865199620,21cyclictest29151-21latency_hist23:15:002
865199620,19cyclictest0-21swapper/220:45:292
8649996231,4cyclictest9-21ksoftirqd/022:20:180
8649996231,4cyclictest9-21ksoftirqd/021:35:000
865199611,25cyclictest27730-21/usr/sbin/munin22:05:272
865199610,24cyclictest28953-21sed00:20:242
865199601,22cyclictest14830-21mailstats23:50:282
8650996025,4cyclictest25-21ksoftirqd/100:00:141
8650996024,4cyclictest25-21ksoftirqd/119:55:271
865199590,26cyclictest0-21swapper/223:05:152
865199590,24cyclictest15710-21bc21:40:142
865199590,22cyclictest19624-21sensors00:00:262
865199590,21cyclictest23364-21fschecks_time19:40:242
112212590,4sleep111223-21unixbench_singl20:20:311
865199580,31cyclictest27450-21sed19:50:002
865199580,24cyclictest12527-21sensors23:45:282
865199580,22cyclictest31566-21/usr/sbin/munin23:20:292
8650995825,4cyclictest25-21ksoftirqd/123:10:241
8650995824,3cyclictest25-21ksoftirqd/119:25:281
8649995831,4cyclictest9-21ksoftirqd/000:15:200
8649995829,3cyclictest9-21ksoftirqd/022:45:240
865199571,23cyclictest29582-21diskstats23:15:172
865199570,24cyclictest5352-21interrupts20:10:212
865199570,24cyclictest14980-21sed19:20:272
865199570,23cyclictest29033-21diskstats21:00:212
865199570,19cyclictest0-21swapper/221:15:002
8650995728,4cyclictest25-21ksoftirqd/123:20:161
8650995727,3cyclictest25-21ksoftirqd/123:00:271
8650995726,3cyclictest25-21ksoftirqd/119:10:211
8650995722,3cyclictest25-21ksoftirqd/120:05:161
8650995722,3cyclictest25-21ksoftirqd/119:40:241
8649995729,3cyclictest9-21ksoftirqd/021:05:010
8649995727,4cyclictest9-21ksoftirqd/023:40:250
8649995724,4cyclictest9-21ksoftirqd/020:05:010
865199560,29cyclictest28976-21cut19:50:272
8650995626,3cyclictest25-21ksoftirqd/120:42:111
8650995626,2cyclictest25-21ksoftirqd/100:19:391
8650995624,4cyclictest25-21ksoftirqd/123:30:001
8650995622,4cyclictest25-21ksoftirqd/120:50:271
8650995621,4cyclictest25-21ksoftirqd/120:30:151
8650995621,4cyclictest25-21ksoftirqd/119:50:221
8650995621,3cyclictest25-21ksoftirqd/123:55:181
8649995627,3cyclictest9-21ksoftirqd/000:00:150
8649995624,3cyclictest9-21ksoftirqd/023:15:280
8649995623,4cyclictest9-21ksoftirqd/000:07:370
865199550,23cyclictest32334-21acpi20:00:152
865199550,17cyclictest0-21swapper/220:05:212
8650995527,3cyclictest25-21ksoftirqd/120:45:191
8650995525,4cyclictest25-21ksoftirqd/123:50:171
8650995522,3cyclictest25-21ksoftirqd/119:15:261
8650995521,3cyclictest25-21ksoftirqd/119:45:281
8650995520,3cyclictest25-21ksoftirqd/121:10:231
8649995525,4cyclictest9-21ksoftirqd/020:40:000
865199541,23cyclictest17743-21netstat20:35:222
865199541,21cyclictest24154-21meminfo00:10:232
8650995421,3cyclictest25-21ksoftirqd/120:25:251
8650995421,3cyclictest25-21ksoftirqd/120:25:251
8650995419,7cyclictest25-21ksoftirqd/100:10:131
8649995427,3cyclictest9-21ksoftirqd/019:50:240
8649995426,3cyclictest9-21ksoftirqd/019:25:000
864999541,6cyclictest121rcu_preempt20:19:590
137291540,1ptp4l401ktimersoftd/320:30:173
865199532,20cyclictest3467-21cut00:35:202
865199530,23cyclictest1389-21phc2sys-jitter00:30:242
865199530,21cyclictest6349-21wc22:25:242
8650995326,3cyclictest25-21ksoftirqd/122:20:171
8650995323,4cyclictest25-21ksoftirqd/121:20:271
8650995321,3cyclictest25-21ksoftirqd/122:18:091
8650995318,7cyclictest25-21ksoftirqd/122:30:221
8649995329,4cyclictest9-21ksoftirqd/020:45:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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