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2026-05-04 - 05:50
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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 Mon May 04, 2026 00:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18232206170,24sleep00-21swapper/019:08:460
138591204171,22phc2sys0-21swapper/319:05:033
18582201169,21sleep20-21swapper/219:09:132
16512201168,22sleep10-21swapper/119:06:371
1195921380,6sleep2222099cyclictest20:35:002
203442790,5sleep220345-21irqrtprio19:45:172
197722630,6sleep2222099cyclictest20:50:122
2218996225,5cyclictest9-21ksoftirqd/022:55:160
2218996222,6cyclictest9-21ksoftirqd/023:30:170
44042610,3sleep30-21swapper/320:20:013
2218996124,6cyclictest9-21ksoftirqd/021:20:250
2218996124,6cyclictest9-21ksoftirqd/020:20:220
2218996124,5cyclictest9-21ksoftirqd/021:30:160
2218996124,5cyclictest9-21ksoftirqd/019:35:240
2218996124,5cyclictest9-21ksoftirqd/000:05:220
2218996123,6cyclictest9-21ksoftirqd/020:25:260
2218996123,5cyclictest9-21ksoftirqd/021:45:140
2218996123,5cyclictest9-21ksoftirqd/020:05:240
2218996123,5cyclictest9-21ksoftirqd/019:20:130
2218996122,6cyclictest9-21ksoftirqd/019:30:130
2218996028,9cyclictest9-21ksoftirqd/000:00:240
2218996024,6cyclictest9-21ksoftirqd/021:10:230
2218996023,5cyclictest9-21ksoftirqd/022:45:230
2218996023,5cyclictest9-21ksoftirqd/020:55:150
2218996022,6cyclictest9-21ksoftirqd/022:40:170
2218996021,5cyclictest9-21ksoftirqd/020:50:150
111122600,5sleep111114-21rt-features19:25:241
2218995924,5cyclictest9-21ksoftirqd/022:05:160
2218995924,5cyclictest9-21ksoftirqd/019:45:210
2218995924,5cyclictest9-21ksoftirqd/000:35:280
2218995923,7cyclictest9-21ksoftirqd/022:20:190
2218995923,5cyclictest9-21ksoftirqd/022:50:230
2218995923,5cyclictest9-21ksoftirqd/022:15:120
2218995923,5cyclictest9-21ksoftirqd/021:55:240
2218995923,5cyclictest9-21ksoftirqd/020:00:140
2218995923,5cyclictest9-21ksoftirqd/019:15:280
2218995923,5cyclictest9-21ksoftirqd/000:25:250
2218995922,6cyclictest9-21ksoftirqd/021:00:200
2218995922,5cyclictest9-21ksoftirqd/023:20:150
2218995922,5cyclictest9-21ksoftirqd/022:35:250
2218995922,5cyclictest9-21ksoftirqd/020:40:180
2218995922,5cyclictest9-21ksoftirqd/020:30:210
2218995922,5cyclictest9-21ksoftirqd/020:10:250
2218995922,5cyclictest9-21ksoftirqd/019:50:220
2218995921,6cyclictest9-21ksoftirqd/023:25:130
2218995921,5cyclictest9-21ksoftirqd/023:15:230
247882580,5sleep224791-21cpuspeed_turbos21:00:112
222199584,15cyclictest14719-21latency_hist20:40:013
2218995827,11cyclictest9-21ksoftirqd/000:30:130
2218995823,5cyclictest9-21ksoftirqd/019:55:260
2218995823,5cyclictest9-21ksoftirqd/000:10:140
2218995822,6cyclictest9-21ksoftirqd/022:10:160
2218995822,6cyclictest9-21ksoftirqd/021:25:150
2218995822,5cyclictest9-21ksoftirqd/021:35:280
2218995821,5cyclictest9-21ksoftirqd/023:55:230
2218995816,7cyclictest9-21ksoftirqd/020:35:250
2218995725,5cyclictest9-21ksoftirqd/023:05:170
2218995724,5cyclictest9-21ksoftirqd/023:35:280
2218995722,8cyclictest9-21ksoftirqd/022:25:220
2218995722,5cyclictest9-21ksoftirqd/020:45:170
2218995721,5cyclictest9-21ksoftirqd/021:40:160
2218995720,5cyclictest9-21ksoftirqd/023:10:180
222199566,17cyclictest16232-21sed21:45:273
222199563,17cyclictest0-21swapper/300:05:203
2218995624,6cyclictest9-21ksoftirqd/023:40:260
2218995621,5cyclictest9-21ksoftirqd/000:15:150
2218995620,5cyclictest9-21ksoftirqd/023:00:150
222199555,11cyclictest32426-21sed23:25:173
222199555,10cyclictest11641-21sshd19:26:513
2218995523,9cyclictest9-21ksoftirqd/021:50:130
2218995523,4cyclictest9-21ksoftirqd/022:30:260
2218995520,5cyclictest9-21ksoftirqd/019:40:230
222199541,16cyclictest0-21swapper/320:00:183
2218995426,3cyclictest9-21ksoftirqd/023:52:460
2218995425,6cyclictest9-21ksoftirqd/021:15:130
2218995419,7cyclictest9-21ksoftirqd/019:25:240
2218995320,5cyclictest9-21ksoftirqd/023:45:010
222199524,9cyclictest7952-21irqrtprio21:30:193
138491520,1ptp4l391rcuc/320:20:433
222199514,16cyclictest6768-21/usr/sbin/munin22:35:273
222199512,16cyclictest0-21swapper/321:25:143
326052500,5sleep232609-21irqrtprio23:25:192
222199505,17cyclictest2232-21/usr/sbin/munin19:10:183
222199505,17cyclictest17251-21/usr/sbin/munin20:45:143
2218995024,4cyclictest9-21ksoftirqd/021:05:150
2218994920,6cyclictest9-21ksoftirqd/022:00:120
206502490,2sleep3391rcuc/319:45:193
221899481,6cyclictest9-21ksoftirqd/020:15:130
222199475,16cyclictest657-21sed21:15:183
222199474,16cyclictest14423-21latency_hist19:35:013
222199474,15cyclictest23092-21sed19:50:203
222199472,15cyclictest6052-21ls22:30:273
222199464,7cyclictest24277-21apt-get23:10:103
221899462,5cyclictest9-21ksoftirqd/019:10:160
221899461,5cyclictest9-21ksoftirqd/000:20:190
138491460,0ptp4l401ktimersoftd/322:40:113
222199455,8cyclictest27835-21meminfo23:15:213
222199453,8cyclictest21094-21ps20:50:243
222199452,7cyclictest15973-21grep23:55:253
138491450,0ptp4l401ktimersoftd/319:17:373
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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