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2026-07-30 - 00:21
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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 Wed Jul 29, 2026 12:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591223163,49phc2sys0-21swapper/307:08:203
138591223163,49phc2sys0-21swapper/307:08:203
9082206172,23sleep10-21swapper/107:08:381
9082206172,23sleep10-21swapper/107:08:371
6612201168,22sleep20-21swapper/207:05:422
6612201168,22sleep20-21swapper/207:05:412
6862199164,23sleep00-21swapper/007:06:000
6862199164,23sleep00-21swapper/007:06:000
1493921190,1sleep10-21swapper/111:55:211
497421170,2sleep30-21swapper/307:15:213
101328562,15sleep30-21swapper/307:10:013
250142660,5sleep125-21ksoftirqd/107:55:231
107372650,2sleep20-21swapper/207:25:282
1309996334,4cyclictest9-21ksoftirqd/010:20:000
1309996130,4cyclictest9-21ksoftirqd/011:55:150
1309995929,4cyclictest9-21ksoftirqd/008:30:250
1309995825,4cyclictest9-21ksoftirqd/011:15:130
1309995733,3cyclictest9-21ksoftirqd/009:15:190
1309995627,4cyclictest9-21ksoftirqd/011:35:140
1309995625,7cyclictest9-21ksoftirqd/008:25:250
1309995623,4cyclictest9-21ksoftirqd/008:40:140
1309995623,4cyclictest9-21ksoftirqd/007:50:240
138491540,1ptp4l401ktimersoftd/312:00:293
138491540,1ptp4l401ktimersoftd/309:41:573
138491540,1ptp4l401ktimersoftd/308:38:343
138491540,1ptp4l401ktimersoftd/308:38:343
1309995431,4cyclictest9-21ksoftirqd/011:30:270
1309995425,9cyclictest9-21ksoftirqd/009:00:010
1309995423,4cyclictest9-21ksoftirqd/011:00:240
1309995421,4cyclictest9-21ksoftirqd/011:05:220
55722530,2sleep10-21swapper/107:15:281
131099532,6cyclictest20239-21awk12:05:241
1309995327,4cyclictest9-21ksoftirqd/010:35:210
1309995322,5cyclictest9-21ksoftirqd/007:10:220
1309995321,9cyclictest9-21ksoftirqd/011:25:150
1309995319,4cyclictest9-21ksoftirqd/012:30:290
131099520,9cyclictest32449-21ps12:30:251
130999529,3cyclictest9-21ksoftirqd/010:45:140
1309995223,4cyclictest9-21ksoftirqd/010:00:230
131099512,5cyclictest0-21swapper/108:30:161
131099510,5cyclictest0-21swapper/111:40:131
1309995126,4cyclictest9-21ksoftirqd/008:05:160
1309995126,4cyclictest9-21ksoftirqd/008:05:160
131099503,5cyclictest241ktimersoftd/110:15:201
131099501,6cyclictest241ktimersoftd/112:10:161
1309995025,4cyclictest9-21ksoftirqd/011:45:260
1309995022,4cyclictest9-21ksoftirqd/009:55:230
1309995020,4cyclictest9-21ksoftirqd/011:20:270
131099493,6cyclictest10992-21latency_hist11:50:011
130999499,3cyclictest9-21ksoftirqd/007:25:010
130999498,7cyclictest9-21ksoftirqd/010:25:190
130999496,3cyclictest9-21ksoftirqd/008:15:230
130999494,3cyclictest9-21ksoftirqd/010:55:010
130999493,5cyclictest9-21ksoftirqd/008:10:250
130999491,7cyclictest9-21ksoftirqd/009:35:200
1309994914,9cyclictest9-21ksoftirqd/012:15:230
131099485,6cyclictest4479-21/usr/sbin/munin11:35:181
131099484,5cyclictest241ktimersoftd/109:30:261
131099482,7cyclictest19314-21fschecks_time08:50:161
131099482,5cyclictest241ktimersoftd/110:35:161
131099482,5cyclictest21380-21/usr/sbin/munin10:00:181
130999489,3cyclictest9-21ksoftirqd/008:45:140
130999489,2cyclictest9-21ksoftirqd/010:20:200
130999487,3cyclictest9-21ksoftirqd/012:25:140
130999487,2cyclictest121rcu_preempt11:10:290
130999485,7cyclictest9-21ksoftirqd/010:40:120
130999485,3cyclictest9-21ksoftirqd/012:35:190
130999483,5cyclictest9-21ksoftirqd/010:05:170
130999483,3cyclictest9-21ksoftirqd/007:34:590
130999482,7cyclictest9-21ksoftirqd/010:55:250
130999482,5cyclictest9-21ksoftirqd/007:15:160
1309994818,5cyclictest9-21ksoftirqd/011:40:140
1312994729,4cyclictest41-21ksoftirqd/312:23:563
131099475,6cyclictest2149-21/usr/sbin/munin09:20:181
131099475,6cyclictest17537-21sed09:50:211
131099474,5cyclictest17478-21sed12:00:251
131099473,6cyclictest23054-21sed08:55:251
131099473,5cyclictest25-21ksoftirqd/109:40:191
131099472,8cyclictest25437-21sort11:10:281
131099470,6cyclictest9232-21cstates07:25:141
1309994733,4cyclictest9-21ksoftirqd/009:10:000
130999472,7cyclictest9-21ksoftirqd/009:40:140
1309994726,7cyclictest9-21ksoftirqd/007:23:120
130999472,3cyclictest9-21ksoftirqd/011:50:130
130999472,3cyclictest9-21ksoftirqd/010:10:180
130999471,7cyclictest9-21ksoftirqd/007:55:250
131099465,5cyclictest25-21ksoftirqd/107:40:001
131099464,5cyclictest6088-21gpgv08:24:591
131099464,5cyclictest27491-21taskset09:05:231
131099464,5cyclictest27491-21taskset09:05:231
131099464,5cyclictest26464-21expr12:20:131
131099464,5cyclictest23548-21cat11:10:001
131099464,5cyclictest12733-21sed11:50:251
131099463,5cyclictest31162-21latency_hist09:15:001
131099462,8cyclictest1464-21cstates11:30:141
131099460,5cyclictest0-21swapper/109:00:261
130999464,8cyclictest9-21ksoftirqd/009:05:160
1309994633,4cyclictest9-21ksoftirqd/012:00:270
130999463,2cyclictest9-21ksoftirqd/007:45:190
1309994632,4cyclictest9-21ksoftirqd/007:40:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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