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2026-03-11 - 20:45
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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 Wed Mar 11, 2026 12:44:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2996022040,13sleep30-21swapper/307:05:323
2996022040,13sleep30-21swapper/307:05:323
299449912247,8cyclictest0-21swapper/010:55:420
299449911959,53cyclictest0-21swapper/011:35:440
299449911959,53cyclictest0-21swapper/011:35:440
299449911750,14cyclictest9736-21latency_hist07:40:300
299539911555,10cyclictest0-21swapper/109:35:501
299449911455,8cyclictest352-21runrttasks09:50:420
299449911455,8cyclictest352-21runrttasks09:50:420
299449910867,32cyclictest0-21swapper/009:40:300
28917210810,71sleep128948-21/usr/sbin/munin07:01:021
28917210810,71sleep128948-21/usr/sbin/munin07:01:021
299449910480,17cyclictest9915-21sh11:56:000
299449910479,19cyclictest298-21in:imuxsock11:50:310
29961999838,51cyclictest0-21swapper/207:15:292
29953999881,10cyclictest0-21swapper/107:20:311
29961999735,7cyclictest0-21swapper/211:20:492
29961999645,42cyclictest0-21swapper/208:05:302
29961999645,42cyclictest0-21swapper/208:05:302
29944999679,12cyclictest29931-21cyclictest11:11:070
29961999539,50cyclictest30953-21latency_hist08:45:302
29961999536,13cyclictest0-21swapper/212:15:502
2996199952,53cyclictest23888-21ssh11:25:472
29944999569,18cyclictest0-21swapper/008:41:010
29944999472,12cyclictest0-21swapper/007:45:510
292592949,59sleep029350-21cat07:01:140
292592949,59sleep029350-21cat07:01:140
29961999330,11cyclictest0-21swapper/208:55:592
29953999377,11cyclictest0-21swapper/109:05:451
29953999377,11cyclictest0-21swapper/109:05:451
29953999367,20cyclictest4905-21diskmemload11:45:271
29961999240,45cyclictest25762-21latency_hist09:40:302
29961999232,12cyclictest0-21swapper/209:05:492
29961999232,12cyclictest0-21swapper/209:05:492
29961999231,9cyclictest0-21swapper/209:35:312
2996199922,32cyclictest8768-21rm10:05:382
2996199922,32cyclictest8768-21rm10:05:382
29961999223,14cyclictest0-21swapper/207:22:202
29944999269,14cyclictest0-21swapper/007:11:040
29961999133,11cyclictest0-21swapper/209:00:522
29961999131,7cyclictest0-21swapper/210:22:222
29961999127,7cyclictest0-21swapper/210:15:502
29961999127,7cyclictest0-21swapper/209:26:012
29953999177,8cyclictest0-21swapper/107:25:301
29944999169,11cyclictest0-21swapper/009:55:550
29944999169,11cyclictest0-21swapper/009:55:550
29961999039,43cyclictest0-21swapper/211:05:492
29961999032,6cyclictest0-21swapper/211:10:462
29961999030,7cyclictest0-21swapper/209:21:002
29961998924,22cyclictest15137-21cpuspeed12:05:432
29944998968,15cyclictest0-21swapper/007:15:530
29944998968,10cyclictest0-21swapper/008:30:440
29944998962,19cyclictest7743-21latency_hist07:35:320
29961998835,8cyclictest0-21swapper/209:10:582
29961998834,8cyclictest0-21swapper/210:36:002
29961998834,11cyclictest0-21swapper/209:46:452
29961998833,13cyclictest3691-21switchtime09:56:082
29961998833,13cyclictest3691-21switchtime09:56:082
2996199883,25cyclictest28146-21fschecks_count08:35:492
29961998825,8cyclictest0-21swapper/212:25:592
29961998822,17cyclictest277-21dbus-daemon09:45:282
29953998867,12cyclictest0-21swapper/107:11:021
29944998872,8cyclictest0-21swapper/012:05:300
29961998734,46cyclictest0-21swapper/211:00:302
2996199873,29cyclictest19791-21fschecks_time08:10:492
2996199873,29cyclictest19791-21fschecks_time08:10:492
29961998732,8cyclictest0-21swapper/211:45:502
29961998731,7cyclictest0-21swapper/208:45:482
29961998731,7cyclictest0-21swapper/208:45:482
29961998731,49cyclictest8028-21apt-key07:35:322
29961998728,12cyclictest0-21swapper/207:50:512
29961998727,9cyclictest0-21swapper/207:45:502
29961998727,13cyclictest0-21swapper/208:25:302
29961998723,11cyclictest0-21swapper/210:50:402
29944998769,8cyclictest0-21swapper/008:15:310
29944998769,8cyclictest0-21swapper/008:15:310
29944998752,7cyclictest181rcu_preempt07:30:310
2996199863,31cyclictest6473-21ssh10:01:002
29961998628,7cyclictest0-21swapper/208:27:042
29961998626,7cyclictest0-21swapper/210:25:542
29961998625,9cyclictest0-21swapper/208:05:512
29961998625,8cyclictest0-21swapper/212:21:142
29953998656,21cyclictest6127-21modprobe07:30:281
29944998670,8cyclictest0-21swapper/009:25:450
2996199854,35cyclictest1755-21latency_hist08:55:292
2996199853,29cyclictest32400-21cstates09:50:442
2996199853,29cyclictest32400-21cstates09:50:442
2996199853,27cyclictest2579-21modprobe10:50:272
29961998526,7cyclictest0-21swapper/211:56:282
29953998567,11cyclictest0-21swapper/111:57:161
2996199843,30cyclictest11204-21sh09:15:372
2996199843,28cyclictest23510-21/usr/sbin/munin10:31:022
2996199843,28cyclictest23510-21/usr/sbin/munin10:31:022
2996199843,24cyclictest29916-21latency10:40:532
29961998429,9cyclictest0-21swapper/212:35:262
29961998429,9cyclictest0-21swapper/212:35:262
2996199842,30cyclictest30780-21grep11:36:052
2996199842,30cyclictest30780-21grep11:36:052
29944998466,9cyclictest0-21swapper/008:40:270
29944998464,11cyclictest0-21swapper/010:41:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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