You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-04-22 - 10:17
Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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 50 highest latencies:
System rackeslot6.osadl.org (updated Wed Apr 22, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
374165999108101,4cyclictest3838145-21kworker/u8:1+events_unbound00:10:010
37416629910692,10cyclictest3834907-40logrotate00:00:011
3741659999893,4cyclictest3828570-21kworker/u8:4+events_unbound00:04:020
3741659999889,6cyclictest3841610-21latency_hist00:20:010
3741662999687,6cyclictest3756051-21latency_hist19:55:011
3741659999687,6cyclictest3749688-21latency_hist19:35:010
3741659999286,4cyclictest3780443-21kworker/u8:4+events_unbound21:30:230
3741659998982,5cyclictest3752881-21latency_hist19:45:010
3741662998882,4cyclictest3767464-21latency_hist20:30:011
3741659998779,5cyclictest3823500-21kworker/u8:0+events_unbound23:25:240
3741659998580,4cyclictest3828570-21kworker/u8:4+flush-179:023:40:250
3741659998580,4cyclictest3739397-21kworker/u8:0+flush-179:019:15:250
3741659998477,5cyclictest3799653-21kworker/u8:3+events_unbound22:20:010
3741659998377,5cyclictest3823500-21kworker/u8:0+events_unbound23:35:240
3741659998277,4cyclictest3797756-21kworker/u8:2+flush-179:022:10:240
3741659998176,4cyclictest3764335-21kworker/u8:2+flush-179:020:30:250
3741659997773,3cyclictest3840236-21kworker/u8:2+events_unbound00:35:250
3741659997772,4cyclictest3746507-21kworker/u8:2+events_unbound19:35:240
3741659997772,3cyclictest3772228-21kworker/u8:0+flush-179:020:45:210
3741659997770,5cyclictest3775409-21kworker/u8:2+events_unbound21:05:160
3741659997671,4cyclictest3746507-21kworker/u8:2+flush-179:019:45:250
3741659997570,4cyclictest3746507-21kworker/u8:2+events_unbound19:25:140
3741659997569,4cyclictest3799653-21kworker/u8:3+events_unbound22:30:140
3741659997566,7cyclictest3752915-21kworker/u8:1+events_unbound19:55:200
3741659997466,6cyclictest3746513-21latency_hist19:25:010
3741662997363,8cyclictest3834968-21kworker/u8:0+flush-179:000:35:181
3741659997369,3cyclictest3784975-21kworker/u8:1+events_unbound22:00:240
3741659997369,3cyclictest3784975-21kworker/u8:1+events_unbound22:00:230
3741659997267,3cyclictest3799653-21kworker/u8:3+flush-179:022:45:210
3741659997266,4cyclictest3836824-21apt-get00:05:130
3741659997258,5cyclictest3823500-21kworker/u8:0+events_unbound23:30:230
3741659997166,4cyclictest3757609-21kworker/u8:0+flush-179:020:26:350
3741659997162,6cyclictest3799653-21kworker/u8:3+events_unbound22:55:150
3741659997161,5cyclictest3817177-21kworker/u8:0+events_unbound23:10:000
3741659997066,3cyclictest3746557-21kworker/u8:3+flush-179:019:50:250
3741659997064,4cyclictest3828570-21kworker/u8:4+events_unbound23:45:130
3741659997062,6cyclictest3777023-21latency_hist21:00:000
3741659997062,6cyclictest3757609-21kworker/u8:0+events_unbound20:05:230
3741659997062,6cyclictest3728616-21kworker/u8:3+events_unbound19:10:180
3741659996963,5cyclictest3786609-21kworker/u8:0+flush-179:022:20:260
3741659996958,9cyclictest3757609-21kworker/u8:0+flush-179:020:05:000
3741659996864,3cyclictest3784975-21kworker/u8:1+events_unbound22:05:190
3741659996864,3cyclictest3780194-21kworker/u8:3+flush-179:021:20:270
3741659996864,3cyclictest3767510-21kworker/u8:3+flush-179:020:35:210
3741659996863,4cyclictest3817177-21kworker/u8:0+events_unbound23:10:220
3741659996863,3cyclictest3840236-21kworker/u8:2+events_unbound00:30:150
3741659996862,4cyclictest3786609-21kworker/u8:0+flush-179:021:55:210
3741659996860,3cyclictest3769086-21kworker/u8:4+events_unbound20:50:240
3741659996859,6cyclictest3780443-21kworker/u8:4+flush-179:021:15:250
3741662996762,4cyclictest3784975-21kworker/u8:1+events_unbound21:50:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional