You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-01-05 - 08:59
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 Mon Jan 05, 2026 00:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34522119910496,6cyclictest3532416-21kworker/u8:2+flush-179:000:00:010
34522139910095,4cyclictest3537246-21kworker/u8:1+events_unbound00:04:021
3452211999586,6cyclictest3482514-21latency_hist20:45:010
3452211999586,6cyclictest3482514-21latency_hist20:45:000
3452211999385,5cyclictest3461802-21latency_hist19:40:010
3452213999184,5cyclictest3471397-21kworker/u8:2+events_unbound20:20:001
3452213999079,10cyclictest3502169-21kworker/u8:0+flush-179:022:00:241
3452211998875,7cyclictest3476146-21latency_hist20:25:010
3452213998476,6cyclictest3548724-21kworker/u8:3+events_unbound00:30:001
3452213998075,4cyclictest3548671-21kworker/u8:2+flush-179:000:20:251
3452213997974,4cyclictest3465025-21kworker/u8:0+events_unbound19:50:291
3452213997974,4cyclictest3465025-21kworker/u8:0+events_unbound19:50:291
3452213997870,6cyclictest3485686-21latency_hist20:55:001
3452213997864,13cyclictest3532416-21kworker/u8:2+flush-179:000:00:011
3452213997773,3cyclictest3458662-21kworker/u8:3+flush-179:019:45:211
3452213997768,6cyclictest3497148-21latency_hist21:30:011
3452213997763,10cyclictest3451966-21latency_hist19:10:021
3452213997668,5cyclictest3471350-21kworker/u8:1+events_unbound20:10:221
3452213997667,7cyclictest3530817-21kworker/u8:0+events_unbound23:15:221
3452213997570,3cyclictest3537246-21kworker/u8:1+events_unbound00:05:141
3452213997469,4cyclictest3498716-21kworker/u8:3+flush-179:021:40:001
3452213997468,4cyclictest3487304-21kworker/u8:2+events_unbound21:00:201
3452213997369,3cyclictest3502169-21kworker/u8:0+flush-179:021:55:261
3452211997367,4cyclictest3465029-21kworker/u8:1+flush-179:019:55:000
3452211997367,4cyclictest3465029-21kworker/u8:1+flush-179:019:55:000
3452213997267,4cyclictest3502169-21kworker/u8:0+events_unbound22:45:271
3452213997162,4cyclictest3480961-21kworker/u8:1+events_unbound20:45:231
3452211997160,8cyclictest3469760-21kworker/u8:3+flush-179:020:09:590
3452213997065,4cyclictest3524505-21kworker/u8:3+flush-179:023:10:291
3452213997065,4cyclictest3518138-21kworker/u8:2+events_unbound22:40:271
3452213997062,5cyclictest3519697-21latency_hist22:40:011
3452213996964,4cyclictest3480961-21kworker/u8:1+events_unbound21:14:401
3452213996963,5cyclictest3455439-21kworker/u8:0+events_unbound19:20:221
3452211996958,8cyclictest3548671-21kworker/u8:2+flush-179:000:30:240
3452213996762,4cyclictest3548671-21kworker/u8:2+events_unbound00:10:221
3452213996661,4cyclictest3548671-21kworker/u8:2+flush-179:000:20:011
3452213996661,4cyclictest3532416-21kworker/u8:2+flush-179:023:20:261
3452213996652,5cyclictest3465029-21kworker/u8:1+events_unbound20:00:171
3452213996560,4cyclictest3502169-21kworker/u8:0+events_unbound21:45:241
3452213996554,4cyclictest3471397-21kworker/u8:2+events_unbound20:25:201
3452213996460,3cyclictest3532416-21kworker/u8:2+events_unbound23:35:141
3452211996456,6cyclictest3508302-21latency_hist22:05:000
3452213996359,3cyclictest3455439-21kworker/u8:0+flush-179:019:25:281
3452213996258,3cyclictest3516753-21kworker/u8:1+flush-179:022:30:141
3452213996254,7cyclictest3471397-21kworker/u8:2+flush-179:020:30:271
3452213996250,4cyclictest3508141-21kworker/u8:2+events_unbound22:10:181
3452211996256,4cyclictest3524505-21kworker/u8:3+flush-179:023:00:220
3452213996157,3cyclictest3524505-21kworker/u8:3+flush-179:023:30:241
3452213996157,3cyclictest3480961-21kworker/u8:1+events_unbound21:40:181
3452213996157,3cyclictest3452036-21kworker/u8:1+events_unbound19:10:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional