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2026-08-24 - 05:55
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack3slot6.osadl.org (updated Mon Aug 24, 2026 00:45:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20659911478,26cyclictest14-21ksoftirqd/021:55:130
20659911478,26cyclictest14-21ksoftirqd/021:55:130
20659911180,19cyclictest14-21ksoftirqd/022:25:120
20659911176,23cyclictest14-21ksoftirqd/022:40:130
20659910977,20cyclictest14-21ksoftirqd/021:00:220
20659910572,20cyclictest14-21ksoftirqd/022:35:140
20659910478,16cyclictest14-21ksoftirqd/023:10:110
20659910473,20cyclictest14-21ksoftirqd/020:40:140
20659910372,20cyclictest14-21ksoftirqd/020:45:140
20659910271,20cyclictest14-21ksoftirqd/000:35:150
20659910068,19cyclictest0-21swapper/019:55:150
2065999867,18cyclictest14-21ksoftirqd/023:40:110
2065999769,19cyclictest14-21ksoftirqd/022:05:140
2065999762,21cyclictest14-21ksoftirqd/022:45:140
2065999711,71cyclictest0-21swapper/020:30:150
170192970,5chrt16263-21/usr/sbin/munin00:20:321
206599968,73cyclictest13263-21apt-get21:10:150
2065999663,19cyclictest14-21ksoftirqd/022:10:150
2065999566,16cyclictest14-21ksoftirqd/021:50:140
206599953,67cyclictest9014-21cron00:00:000
2065999463,16cyclictest14-21ksoftirqd/021:20:150
206599939,44cyclictest503-21snmpd21:15:140
2065999358,21cyclictest14-21ksoftirqd/000:30:140
2065999346,38cyclictest0-21swapper/000:00:130
2065999268,15cyclictest141ksoftirqd/019:40:140
206599925,76cyclictest457-21dbus-daemon23:30:110
206599925,76cyclictest457-21dbus-daemon23:30:110
206599923,60cyclictest4912-21sort19:15:240
2065999214,64cyclictest0-21swapper/019:25:140
2065999212,66cyclictest0-21swapper/019:35:150
2065999148,35cyclictest0-21swapper/021:35:160
2065999121,55cyclictest0-21swapper/000:20:150
206599907,76cyclictest0-21swapper/000:05:200
206599905,54cyclictest0-21swapper/020:54:180
206599895,55cyclictest0-21swapper/022:20:270
206599895,54cyclictest0-21swapper/000:10:270
206599895,52cyclictest0-21swapper/000:15:230
2065998913,64cyclictest0-21swapper/022:50:110
206599885,54cyclictest0-21swapper/020:35:260
2065998814,63cyclictest0-21swapper/021:45:230
2065998814,61cyclictest0-21swapper/020:20:260
2065998814,31cyclictest0-21swapper/020:15:140
2065998812,63cyclictest0-21swapper/023:15:120
174428831,46sleep10-21swapper/119:08:391
207099879,57cyclictest0-21swapper/121:35:131
206599875,53cyclictest0-21swapper/023:06:300
206599875,52cyclictest0-21swapper/019:45:260
2065998754,21cyclictest14-21ksoftirqd/020:55:130
2065998754,21cyclictest14-21ksoftirqd/020:55:130
2065998712,61cyclictest0-21swapper/023:45:140
2065998712,61cyclictest0-21swapper/021:30:140
2065998711,63cyclictest0-21swapper/020:05:130
2065998711,29cyclictest0-21swapper/023:20:140
2065998711,29cyclictest0-21swapper/023:20:140
206599864,54cyclictest0-21swapper/022:55:400
2065998614,60cyclictest0-21swapper/021:25:150
2065998613,59cyclictest0-21swapper/019:50:120
2065998612,63cyclictest0-21swapper/023:25:210
2065998513,61cyclictest0-21swapper/021:40:110
2065998513,60cyclictest0-21swapper/020:00:110
2065998511,61cyclictest0-21swapper/020:10:130
2065998413,59cyclictest0-21swapper/022:30:140
206599833,18cyclictest31286-21latency_hist20:30:010
2070998210,21cyclictest0-21swapper/121:05:111
2065998246,25cyclictest14-21ksoftirqd/019:20:130
2065998246,25cyclictest14-21ksoftirqd/019:20:130
2065998214,57cyclictest0-21swapper/000:25:140
2065998212,59cyclictest0-21swapper/023:50:120
2065998211,60cyclictest0-21swapper/021:05:120
206599815,48cyclictest0-21swapper/022:00:330
2070998011,21cyclictest0-21swapper/119:45:131
2070998010,52cyclictest0-21swapper/123:55:151
206599799,57cyclictest4225-21apt-get22:15:150
206599787,58cyclictest382-21apt-get23:35:140
206599776,64cyclictest0-21swapper/019:10:330
44127630,33sleep00-21swapper/019:05:170
207099767,21cyclictest0-21swapper/119:10:131
206599755,63cyclictest0-21swapper/023:04:420
207099727,45cyclictest27569-21runrttasks20:20:221
207099725,23cyclictest26-21ksoftirqd/122:45:001
2070997045,10cyclictest26-21ksoftirqd/122:24:111
2070997045,10cyclictest26-21ksoftirqd/119:40:591
207099702,22cyclictest26-21ksoftirqd/100:05:001
2070996848,9cyclictest26-21ksoftirqd/119:26:331
207099683,24cyclictest26-21ksoftirqd/123:55:001
207099683,23cyclictest26-21ksoftirqd/121:54:591
2070996827,22cyclictest26-21ksoftirqd/100:10:321
206599689,50cyclictest9638-21apt-get19:30:140
2070996742,9cyclictest26-21ksoftirqd/122:19:481
207099674,23cyclictest26-21ksoftirqd/122:35:001
2070996720,14cyclictest26-21ksoftirqd/122:00:001
2070996720,14cyclictest26-21ksoftirqd/122:00:001
2070996624,12cyclictest26-21ksoftirqd/119:15:151
207099659,26cyclictest26-21ksoftirqd/120:50:131
2070996525,21cyclictest26-21ksoftirqd/121:47:211
2070996524,21cyclictest26-21ksoftirqd/100:16:201
2070996523,22cyclictest26-21ksoftirqd/123:32:461
2070996523,22cyclictest26-21ksoftirqd/123:32:461
2070996517,11cyclictest0-21swapper/122:25:291
2070996511,15cyclictest26-21ksoftirqd/121:05:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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