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2025-12-28 - 16:44
OSADL QA Farm

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #e, slot #6

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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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 Sun Dec 28, 2025 12:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
3318654999987,8cyclictest3407190-21latency_hist11:40:000
3318658999583,9cyclictest3321780-21latency_hist07:20:011
3318658998883,4cyclictest3373512-21kworker/u8:2+events_unbound10:20:251
3318654998883,4cyclictest3393134-21kworker/u8:0+flush-179:011:00:270
3318658998783,3cyclictest3393134-21kworker/u8:0+events_unbound10:55:241
3318654998783,3cyclictest3420660-21kworker/u8:2+events_unbound12:20:250
3318654998782,4cyclictest3373512-21kworker/u8:2+events_unbound10:05:240
3318654998479,4cyclictest3405567-21kworker/u8:0+events_unbound12:10:250
3318654998375,6cyclictest3330021-21latency_hist07:45:010
3318658998271,9cyclictest3359961-21latency_hist09:15:011
3318654998277,4cyclictest3382119-21kworker/u8:0+events_unbound10:20:210
3318654998070,4cyclictest3339808-21kworker/u8:1+events_unbound09:05:260
3318654997974,4cyclictest3396019-21kworker/u8:1+flush-179:011:05:260
3318654997974,4cyclictest3366572-21kworker/u8:3+flush-179:010:15:240
3318658997570,4cyclictest3321736-21kworker/u8:2+events_unbound07:35:261
3318658997470,3cyclictest3393134-21kworker/u8:0+events_unbound11:10:171
3318654997464,7cyclictest3415665-21latency_hist12:05:000
3318654997368,4cyclictest3331640-21kworker/u8:3+events_unbound07:55:260
3318654997363,3cyclictest3339808-21kworker/u8:1+flush-179:008:35:220
3318654997267,4cyclictest3420660-21kworker/u8:2+events_unbound12:25:270
3318654997267,4cyclictest3317094-21kworker/u8:1+flush-179:007:25:200
3318654997263,4cyclictest3396019-21kworker/u8:1+events_unbound11:25:170
3318654997263,4cyclictest3396019-21kworker/u8:1+events_unbound11:25:160
3318654997262,8cyclictest3360459-21/usr/sbin/munin09:15:220
3318658997167,3cyclictest3339808-21kworker/u8:1+events_unbound09:05:151
3318658997160,9cyclictest266-21systemd-journal10:45:271
3318654997167,3cyclictest3405567-21kworker/u8:0+events_unbound11:55:200
3318654997167,3cyclictest3321736-21kworker/u8:2+events_unbound07:45:160
3318654997066,3cyclictest3330014-21kworker/u8:1+events_unbound08:05:260
3318654997065,3cyclictest3396019-21kworker/u8:1+flush-179:011:20:200
3318654996965,3cyclictest3373512-21kworker/u8:2+events_unbound09:55:210
3318658996864,3cyclictest3373512-21kworker/u8:2+events_unbound10:35:191
3318654996864,3cyclictest3331640-21kworker/u8:3+flush-179:008:00:280
3318654996859,4cyclictest3384609-21kworker/u8:1+events_unbound10:30:170
3318654996762,4cyclictest3396019-21kworker/u8:1+flush-179:011:15:250
3318654996762,4cyclictest3339808-21kworker/u8:1+events_unbound08:45:240
3318654996760,4cyclictest3366572-21kworker/u8:3+flush-179:010:00:230
3318658996662,3cyclictest3373512-21kworker/u8:2+events_unbound10:50:241
3318658996661,4cyclictest3366572-21kworker/u8:3+events_unbound09:45:251
3318658996661,4cyclictest3330014-21kworker/u8:1+events_unbound08:05:151
3318658996560,4cyclictest3366572-21kworker/u8:3+events_unbound10:10:291
3318658996560,4cyclictest3314028-21kworker/u8:0+events_unbound07:10:221
3318658996558,5cyclictest3423879-21latency_hist12:30:011
3318658996558,5cyclictest3348047-21latency_hist08:40:011
3318658996557,5cyclictest3356789-21latency_hist09:05:011
3318658996557,3cyclictest3420660-21kworker/u8:2+events_unbound12:30:271
3318658996553,10cyclictest3400825-21latency_hist11:20:001
3318654996554,4cyclictest3403975-21kworker/u8:2+events_unbound11:45:160
3318654996460,3cyclictest3387274-21kworker/u8:0+flush-179:010:44:560
3318654996459,4cyclictest3373512-21kworker/u8:2+flush-179:010:50:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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