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2026-06-15 - 06:14
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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 Jun 15, 2026 00:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491237171,22phc2sys0-21swapper/319:08:513
189252206172,22sleep10-21swapper/119:07:081
188602203170,22sleep20-21swapper/219:06:252
188582200166,22sleep00-21swapper/019:06:230
57212630,2sleep00-21swapper/000:15:270
19437996130,6cyclictest9-21ksoftirqd/020:15:250
19437996130,6cyclictest9-21ksoftirqd/020:15:240
1944099605,18cyclictest19684-21unixbench_singl22:30:293
1944099605,18cyclictest19684-21unixbench_singl22:30:293
19437996027,7cyclictest9-21ksoftirqd/022:00:150
1943899594,11cyclictest3613-21chrt19:43:541
19437995929,6cyclictest9-21ksoftirqd/021:10:000
19437995928,5cyclictest9-21ksoftirqd/023:35:120
19437995928,5cyclictest9-21ksoftirqd/000:10:140
19437995927,5cyclictest9-21ksoftirqd/023:20:170
19437995829,6cyclictest9-21ksoftirqd/021:25:140
19437995828,9cyclictest9-21ksoftirqd/022:10:150
19437995826,5cyclictest9-21ksoftirqd/023:45:250
19437995824,5cyclictest9-21ksoftirqd/021:15:160
19437995824,11cyclictest9-21ksoftirqd/021:25:000
19437995823,4cyclictest9-21ksoftirqd/023:10:120
19437995819,7cyclictest9-21ksoftirqd/000:25:120
1944099574,10cyclictest22623-21apt-config22:40:013
1943899579,18cyclictest10185-21date19:55:271
19437995727,5cyclictest9-21ksoftirqd/022:10:010
19437995724,6cyclictest9-21ksoftirqd/023:30:120
181592570,2sleep20-21swapper/220:15:012
1944099565,10cyclictest18219-21/usr/sbin/munin20:15:233
1944099565,10cyclictest18219-21/usr/sbin/munin20:15:233
1944099563,15cyclictest7118-21cat21:00:003
1943899562,12cyclictest25572-21awk23:50:251
1943799569,7cyclictest9-21ksoftirqd/019:15:130
19437995625,5cyclictest9-21ksoftirqd/019:15:000
19437995624,6cyclictest9-21ksoftirqd/023:05:220
19437995624,5cyclictest9-21ksoftirqd/023:45:000
19437995624,5cyclictest9-21ksoftirqd/022:55:130
19437995623,8cyclictest9-21ksoftirqd/019:50:250
19437995619,8cyclictest9-21ksoftirqd/021:10:110
1944099555,11cyclictest1300-21snmpd22:55:273
1943899552,13cyclictest6135-21cat19:50:001
19437995525,6cyclictest9-21ksoftirqd/022:30:150
19437995525,6cyclictest9-21ksoftirqd/022:30:150
19437995524,5cyclictest9-21ksoftirqd/020:25:200
19437995524,4cyclictest9-21ksoftirqd/022:20:130
19437995523,4cyclictest9-21ksoftirqd/019:45:150
19437995520,9cyclictest9-21ksoftirqd/020:55:220
1944099543,10cyclictest19660-21cstates19:10:123
1944099542,10cyclictest0-21swapper/319:25:253
1943899542,12cyclictest22527-21sed19:15:191
1943899542,11cyclictest29880-21sed00:00:231
1943899542,11cyclictest28227-21sed21:40:271
19437995440,3cyclictest9-21ksoftirqd/020:50:230
19437995423,5cyclictest9-21ksoftirqd/020:40:160
19437995422,5cyclictest9-21ksoftirqd/022:25:140
19437995421,8cyclictest9-21ksoftirqd/023:55:000
139391540,1ptp4l391rcuc/321:58:123
1943899533,17cyclictest19070-21cut20:15:201
1943899533,17cyclictest19070-21cut20:15:201
1943899532,12cyclictest1421-21cstates21:55:131
1943899532,11cyclictest25659-21df_abs20:30:151
1943899532,11cyclictest10424-21switchtime00:25:261
19437995326,8cyclictest9-21ksoftirqd/023:55:250
19437995326,8cyclictest9-21ksoftirqd/023:55:250
19437995321,5cyclictest9-21ksoftirqd/020:05:000
19437995320,5cyclictest9-21ksoftirqd/021:50:190
19439995213,6cyclictest33-21ksoftirqd/222:05:002
1943899525,18cyclictest13882-21/usr/sbin/munin20:05:161
1943899524,12cyclictest6719-21chrt23:12:311
1943899523,18cyclictest3960-21latency_hist00:15:011
1943899523,11cyclictest8674-21timedrift23:15:261
1943899522,11cyclictest21393-21sed22:35:201
1943899522,10cyclictest22912-21sed20:25:001
19437995224,5cyclictest9-21ksoftirqd/020:45:170
19437995223,4cyclictest9-21ksoftirqd/000:05:010
19437995222,5cyclictest9-21ksoftirqd/022:50:210
19437995222,5cyclictest9-21ksoftirqd/021:00:260
1944099512,11cyclictest238732sleep319:19:023
1944099511,10cyclictest0-21swapper/321:40:143
1943899517,11cyclictest31267-21awk20:40:221
1943899514,20cyclictest16366-21chrt23:30:591
1943899513,18cyclictest4170-21awk23:05:281
1943899513,12cyclictest6913-21sed22:05:201
1943899512,11cyclictest13184-21sed22:20:001
1943899512,10cyclictest17497-21expr20:10:251
1943899511,12cyclictest2351-21date23:05:001
1943799512,8cyclictest9-21ksoftirqd/000:30:150
19437995124,5cyclictest9-21ksoftirqd/000:35:120
1943799510,7cyclictest9-21ksoftirqd/022:45:010
1943899505,12cyclictest25992-21chrt19:20:361
1943899505,12cyclictest10272-21awk21:05:191
1943899504,12cyclictest5702-21sed20:55:181
1943899502,10cyclictest0-21swapper/119:50:241
1943799504,6cyclictest9-21ksoftirqd/019:30:160
1943799504,4cyclictest9-21ksoftirqd/020:10:130
19437995036,3cyclictest9-21ksoftirqd/023:25:170
1944099495,10cyclictest6454-21apt-config00:20:013
19439994914,5cyclictest33-21ksoftirqd/222:39:592
1943899495,19cyclictest17987-21awk21:20:201
1943899494,19cyclictest16389-21chrt21:18:051
1943899494,18cyclictest18699-21chrt23:35:321
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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