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2026-06-27 - 16:03
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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 Sat Jun 27, 2026 12:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491229164,22phc2sys0-21swapper/307:06:453
140942226198,19sleep10-21swapper/107:09:591
138782204171,22sleep00-21swapper/007:07:160
138502204171,22sleep20-21swapper/207:06:542
170521700,6sleep31439199cyclictest12:20:143
70721550,6sleep11438999cyclictest10:00:261
14389997315,9cyclictest15579-21awk08:20:001
14391997121,5cyclictest41-21ksoftirqd/312:25:153
14391997028,9cyclictest41-21ksoftirqd/310:00:133
14389997012,12cyclictest26348-21latency_hist12:05:011
14389997012,11cyclictest22791-21dpkg10:49:591
14389997011,12cyclictest10421-21fschecks_count09:15:151
14391996929,9cyclictest41-21ksoftirqd/307:30:003
14389996913,11cyclictest5955-21dpkg08:00:001
14389996912,12cyclictest6191-21cat12:30:001
14389996912,12cyclictest15570-21sed09:25:201
14391996825,4cyclictest41-21ksoftirqd/311:30:213
14389996814,11cyclictest20013-21tune2fs09:35:171
14389996814,10cyclictest23166-21mailstats11:55:251
14389996812,12cyclictest31801-21cut07:45:181
14389996812,12cyclictest19140-21apt-config11:50:011
14389996812,12cyclictest19140-21apt-config11:50:011
14388996835,4cyclictest9-21ksoftirqd/009:20:000
14389996712,11cyclictest2780-21grep11:15:131
14389996712,11cyclictest22914-21latency_hist08:35:001
14388996732,4cyclictest9-21ksoftirqd/011:55:000
14388996732,4cyclictest9-21ksoftirqd/008:35:000
14391996620,9cyclictest41-21ksoftirqd/311:45:183
14391996620,9cyclictest41-21ksoftirqd/311:45:173
14389996611,19cyclictest0-21swapper/107:20:181
14389996611,17cyclictest0-21swapper/110:30:191
14389996611,16cyclictest13452-21grep11:35:251
14389996610,19cyclictest0-21swapper/109:55:251
14391996531,7cyclictest41-21ksoftirqd/309:20:233
1438999659,20cyclictest0-21swapper/110:15:141
1438999659,20cyclictest0-21swapper/110:15:141
1438999659,17cyclictest0-21swapper/110:50:251
14389996512,11cyclictest26462-21ls09:50:001
14389996510,17cyclictest0-21swapper/108:05:271
1438999649,18cyclictest0-21swapper/110:35:151
1438999649,16cyclictest0-21swapper/110:40:241
14389996414,10cyclictest2812-21sed07:50:241
14389996413,12cyclictest11221-21grep08:10:141
14389996413,10cyclictest32453-21cat11:10:011
14389996413,10cyclictest27505-21cut09:50:191
14389996412,18cyclictest30832-21awk07:44:591
14389996412,11cyclictest27073-21cut07:35:201
14389996411,19cyclictest26189-21latency_hist07:35:011
14389996411,11cyclictest28626-21irqrtprio11:00:191
14389996411,10cyclictest23549-21fschecks_count08:35:171
14389996410,18cyclictest0-21swapper/108:20:191
14389996410,16cyclictest0-21swapper/111:40:191
1438999639,18cyclictest0-21swapper/112:35:271
1438999639,17cyclictest0-21swapper/109:10:261
14389996315,8cyclictest11075-21gzip11:30:261
14389996313,9cyclictest3610-21latency_hist10:10:001
14389996313,11cyclictest9338-21sed10:20:161
14389996310,18cyclictest0-21swapper/112:15:011
14389996310,17cyclictest0-21swapper/112:30:231
14389996310,16cyclictest0-21swapper/108:00:011
14388996319,10cyclictest9-21ksoftirqd/010:45:190
1438999629,16cyclictest0-21swapper/107:25:251
14389996213,11cyclictest518-21unixbench_multi12:15:271
14389996212,15cyclictest12865-21fschecks_time09:20:171
14389996212,10cyclictest17205-21fschecks_count07:15:151
14389996211,19cyclictest2917-21timerandwakeup12:20:241
14389996211,11cyclictest22201-21df_abs09:40:141
14389996211,11cyclictest12586-21timerwakeupswit10:25:281
14389996210,17cyclictest0-21swapper/108:55:251
14388996226,7cyclictest9-21ksoftirqd/007:44:590
14390996128,8cyclictest33-21ksoftirqd/209:00:142
14390996126,4cyclictest33-21ksoftirqd/210:40:002
14389996115,10cyclictest8369-21sed11:25:211
14389996114,17cyclictest19883-21grep11:50:131
14389996113,18cyclictest27736-21wc11:00:011
14389996113,18cyclictest27736-21wc11:00:011
14389996113,11cyclictest5165-21grep11:20:151
14389996112,11cyclictest26281-21sed08:40:201
14389996112,10cyclictest3874-21cpu10:10:121
14389996111,16cyclictest2799-21rm09:00:021
14389996111,10cyclictest31351-21needreboot08:50:231
14389996110,10cyclictest16545-21latency_hist07:15:011
14388996128,6cyclictest9-21ksoftirqd/011:30:290
14388996127,5cyclictest9-21ksoftirqd/011:40:000
14388996127,5cyclictest9-21ksoftirqd/007:50:160
14391996029,7cyclictest41-21ksoftirqd/308:50:273
14389996013,17cyclictest26730-21expr12:05:151
14391995926,4cyclictest41-21ksoftirqd/309:15:013
14391995925,3cyclictest41-21ksoftirqd/312:00:223
14389995912,8cyclictest17500-21df_abs09:30:131
14389995912,16cyclictest20546-21latency_hist08:30:001
14388995927,8cyclictest9-21ksoftirqd/009:45:000
14388995926,5cyclictest9-21ksoftirqd/011:10:000
14388995925,6cyclictest9-21ksoftirqd/010:55:000
14388995924,7cyclictest9-21ksoftirqd/008:00:000
14390995822,7cyclictest33-21ksoftirqd/210:05:242
14389995812,15cyclictest674-21if_enp1s011:10:181
14388995827,5cyclictest9-21ksoftirqd/008:15:130
14388995825,4cyclictest9-21ksoftirqd/009:00:000
14388995824,6cyclictest9-21ksoftirqd/010:05:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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