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2026-09-08 - 18:58
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 Tue Sep 08, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
253624499164152,9cyclictest2571494-21latency_hist09:00:011
253624499153141,8cyclictest2621358-21kworker/u8:1+events_unbound11:50:201
253624099152143,6cyclictest2630380-21kworker/u8:1+events_unbound12:10:000
253624099149132,7cyclictest2561924-21kworker/u8:1+events_unbound09:35:010
253624499145139,4cyclictest2540317-21kworker/u8:1+flush-179:007:35:011
253624499145138,4cyclictest2594277-21kworker/u8:3+events_unbound10:20:171
253624099143134,6cyclictest2584475-21kworker/u8:0+events_unbound10:25:220
253624099143131,8cyclictest2586853-21kworker/u8:2+events_unbound09:50:160
253624099142133,6cyclictest2561924-21kworker/u8:1+events_unbound09:00:020
253624499141123,6cyclictest2586853-21kworker/u8:2+events_unbound10:00:191
253624099141131,7cyclictest2568346-21kworker/u8:3+events_unbound09:15:150
253624099141128,6cyclictest2609996-21kworker/u8:3+events_unbound11:25:240
253624499140135,4cyclictest2553401-21kworker/u8:0+events_unbound08:10:011
253624099139131,5cyclictest2624518-21kworker/u8:0+flush-179:011:55:160
253624499138125,5cyclictest2584475-21kworker/u8:0+events_unbound09:40:151
253624499138125,5cyclictest2584475-21kworker/u8:0+events_unbound09:40:151
253624499137129,5cyclictest2597472-21kworker/u8:1+events_unbound10:45:241
253624499137127,6cyclictest2579703-21kworker/u8:2+events_unbound09:25:201
253624499137122,8cyclictest2561924-21kworker/u8:1+events_unbound09:45:161
253624499136124,8cyclictest2621353-21latency_hist11:35:011
253624499135125,7cyclictest2624518-21kworker/u8:0+events_unbound11:45:201
253624099134127,5cyclictest2531681-21kworker/u8:0+flush-179:007:45:240
253624099134124,7cyclictest2586853-21kworker/u8:2+events_unbound10:05:190
253624099134122,8cyclictest2634744-21kworker/u8:0+events_unbound12:20:190
253624499132126,4cyclictest2609996-21kworker/u8:3+flush-179:011:35:261
253624499132121,7cyclictest2630380-21kworker/u8:1+events_unbound12:05:211
253624499132119,10cyclictest510-21rs:main1
253624499129121,5cyclictest2540317-21kworker/u8:1+events_unbound07:35:191
253624099129123,5cyclictest2638336-21kworker/u8:1+events_unbound12:35:010
253624499128122,4cyclictest2578091-21kworker/u8:0+events_unbound09:20:251
253624499128115,4cyclictest2584475-21kworker/u8:0+events_unbound10:30:231
253624099128121,5cyclictest2546007-21kworker/u8:2+flush-179:007:55:010
253624099128120,5cyclictest2597472-21kworker/u8:1+events_unbound10:30:190
253624499126115,7cyclictest2546007-21kworker/u8:2+flush-179:008:00:201
253624499126113,5cyclictest2584475-21kworker/u8:0+events_unbound10:10:281
253624099126117,7cyclictest2609996-21kworker/u8:3+flush-179:011:20:000
253624499125119,5cyclictest2559495-21kworker/u8:2+events_unbound08:25:251
253624499125118,5cyclictest2609920-21kworker/u8:1+flush-179:010:59:591
253624499125115,6cyclictest2584475-21kworker/u8:0+events_unbound10:15:221
253624499125112,6cyclictest2546007-21kworker/u8:2+events_unbound07:40:201
253624099125119,4cyclictest2582882-21kworker/u8:3+events_unbound09:35:250
253624499124118,4cyclictest2549195-21kworker/u8:1+events_unbound08:15:251
253624499124112,5cyclictest2549195-21kworker/u8:1+events_unbound08:10:241
2536240991230,121cyclictest1-21systemd09:29:590
253624499122114,5cyclictest2561924-21kworker/u8:1+events_unbound09:05:271
253624099122114,6cyclictest2609920-21kworker/u8:1+events_unbound11:05:020
253624099122114,6cyclictest2607645-21kworker/u8:0+events_unbound10:55:190
253624099122114,3cyclictest2630380-21kworker/u8:1+events_unbound12:10:230
253624499121116,4cyclictest2609920-21kworker/u8:1+events_unbound11:00:261
253624499121113,5cyclictest2561924-21kworker/u8:1+events_unbound08:30:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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