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2026-03-13 - 19:31
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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 rackbslot7.osadl.org (updated Fri Mar 13, 2026 12:44:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2972821468,20sleep00-21swapper/007:00:330
311859912224,60cyclictest0-21swapper/012:30:220
2165421170,8sleep221652-21apt10:25:192
311859911630,51cyclictest0-21swapper/009:49:410
311859911053,51cyclictest9442-21sh09:10:420
311859911018,51cyclictest20382uname10:45:450
311859911018,51cyclictest20382uname10:45:450
311859910831,50cyclictest0-21swapper/010:18:340
311859910831,50cyclictest0-21swapper/010:18:340
311859910727,50cyclictest0-21swapper/008:31:530
311859910436,44cyclictest27996-21ssh09:40:560
312029910148,16cyclictest28016-21switchtime08:30:522
311859910139,57cyclictest0-21swapper/009:05:340
311859910136,58cyclictest0-21swapper/011:25:470
31185991012,89cyclictest13554-21apt-get11:05:350
311859910053,42cyclictest31176-21cyclictest08:10:460
31185999854,40cyclictest31176-21cyclictest11:24:040
3118599983,62cyclictest989-21/usr/sbin/munin09:50:410
31185999742,47cyclictest5882-21diskmemload09:35:230
31185999641,49cyclictest544-21cron09:05:190
31185999641,49cyclictest544-21cron09:05:190
31185999515,42cyclictest27651-21kworker/u17:0+xprtiod12:01:410
31185999438,50cyclictest28918-21ssh12:25:180
31185999438,50cyclictest0-21swapper/012:15:210
31185999338,48cyclictest0-21swapper/007:25:190
3118599932,80cyclictest0-21swapper/012:05:290
3118599932,80cyclictest0-21swapper/012:05:290
31185999241,45cyclictest18793-21ssh09:25:480
31185999241,45cyclictest18793-21ssh09:25:480
3118599922,76cyclictest0-21swapper/010:55:290
31185999221,49cyclictest0-21swapper/009:39:100
31185999221,49cyclictest0-21swapper/009:39:100
31185999213,42cyclictest15458-21kworker/u17:1+xprtiod11:11:130
31185999213,42cyclictest15458-21kworker/u17:1+xprtiod11:11:130
31185999211,45cyclictest19145-21kworker/u17:0+xprtiod10:23:050
3084229210,57sleep130844-21sshd07:02:421
31185999143,41cyclictest12637-21ssh09:15:450
31185999143,41cyclictest12637-21ssh09:15:450
31185999136,47cyclictest0-21swapper/008:45:220
3118599912,84cyclictest0-21swapper/011:15:310
31193999071,14cyclictest17315-21fschecks_count12:05:391
31193999071,14cyclictest17315-21fschecks_count12:05:391
31193999069,13cyclictest200-21systemd-journal12:25:181
3118599908,73cyclictest0-21swapper/008:15:340
3118599903,81cyclictest0-21swapper/011:50:310
3118599903,78cyclictest0-21swapper/012:30:330
3118599903,75cyclictest0-21swapper/007:45:300
3118599903,75cyclictest0-21swapper/007:45:300
3118599902,77cyclictest31326-21chrt11:35:220
3118599894,78cyclictest5882-21diskmemload09:55:310
3118599894,76cyclictest32661-21ntp_states08:45:500
3118599894,76cyclictest32661-21ntp_states08:45:500
3118599893,74cyclictest31378-21apt-get07:05:300
3118599893,74cyclictest31378-21apt-get07:05:300
31185998929,49cyclictest0-21swapper/007:25:490
3118599884,74cyclictest0-21swapper/010:30:330
31185998835,47cyclictest0-21swapper/010:05:250
31185998817,64cyclictest0-21swapper/011:35:430
31185998817,64cyclictest0-21swapper/011:35:430
31185998727,54cyclictest17573-21/usr/sbin/munin08:01:290
3118599863,74cyclictest19676-21snmpd11:50:220
31185998631,48cyclictest0-21swapper/011:55:440
31193998546,8cyclictest181rcu_preempt09:50:421
3118599857,72cyclictest0-21swapper/010:50:440
3118599854,68cyclictest9055-21apt-get07:35:310
3118599853,69cyclictest0-21swapper/008:25:330
31185998529,47cyclictest0-21swapper/007:31:500
3118599852,73cyclictest13398-21chrt11:05:220
31185998526,51cyclictest0-21swapper/007:10:230
3118599852,55cyclictest14422-21ssh10:12:000
31202998463,13cyclictest9446-21gpgv10:05:222
31193998465,12cyclictest16316-21ssh11:10:221
3118599844,68cyclictest0-21swapper/008:05:320
3118599843,75cyclictest0-21swapper/010:40:320
3118599842,75cyclictest15602-21uname09:20:440
31193998359,8cyclictest181rcu_preempt10:00:551
31193998355,19cyclictest15502-21fschecks_time09:20:421
3119399832,33cyclictest27045-21latency_hist08:30:211
3118599833,70cyclictest2107-21apt-get11:40:330
31185998326,50cyclictest0-21swapper/012:15:350
31185998326,50cyclictest0-21swapper/010:00:410
31185998313,60cyclictest277-21dbus-daemon07:55:200
31185998313,60cyclictest277-21dbus-daemon07:55:200
31332820,8sleep30-21swapper/308:55:413
31202998258,16cyclictest26954-21sh12:20:542
3118599823,68cyclictest12123-21grep07:45:230
3118599823,68cyclictest12123-21grep07:45:230
3118599823,68cyclictest0-21swapper/008:50:340
3118599822,70cyclictest30241-21ssh10:39:120
3118599822,55cyclictest22534-21/usr/sbin/munin10:25:480
31193998157,15cyclictest31895-21latency_hist12:30:211
31185998120,53cyclictest0-21swapper/008:35:520
31202998061,12cyclictest0-21swapper/209:45:222
31202998059,9cyclictest0-21swapper/208:30:232
31202998059,15cyclictest31176-21cyclictest12:30:372
31193998063,9cyclictest23899-21ssh11:21:361
31193998055,7cyclictest181rcu_preempt08:50:321
31193998043,8cyclictest181rcu_preempt10:28:471
31193998040,25cyclictest15631-21latency_hist10:15:211
3118599802,69cyclictest24063-21apt-get08:20:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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