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2026-07-19 - 23:39
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 Jul 19, 2026 12:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
244889599147133,12cyclictest2464961-21apt-get07:59:591
244889599145139,4cyclictest2525985-21kworker/u8:2+events_unbound11:30:241
244889499144134,7cyclictest2489079-21latency_hist09:15:000
244889499144124,8cyclictest2500261-21kworker/u8:3+events_unbound09:55:010
244889499139129,7cyclictest2453798-21latency_hist07:25:010
244889499139126,6cyclictest2471057-21kworker/u8:0+events_unbound08:40:010
244889499135129,4cyclictest2525985-21kworker/u8:2+flush-179:011:20:250
244889499134126,6cyclictest2487528-21kworker/u8:2+flush-179:009:15:250
244889499132123,5cyclictest2503483-21kworker/u8:0+events_unbound10:30:170
244889599131124,5cyclictest2530780-21kworker/u8:1+events_unbound12:20:241
244889599128123,4cyclictest2500261-21kworker/u8:3+events_unbound10:05:231
244889499127118,6cyclictest2443712-21kworker/u8:1+flush-179:007:10:040
244889499126112,6cyclictest2511083-21kworker/u8:3+events_unbound10:25:260
244889499124117,5cyclictest2484782-21kworker/u8:1+events_unbound09:10:020
244889499124117,5cyclictest2484782-21kworker/u8:1+events_unbound09:10:010
244889499123114,6cyclictest2495432-21kworker/u8:3+events_unbound09:35:180
244889499123111,4cyclictest2471554-21kworker/u8:3+events_unbound08:25:260
244889599122118,3cyclictest2484782-21kworker/u8:1+events_unbound09:20:241
244889499121105,6cyclictest2534201-21kworker/u8:0+events_unbound11:45:150
244889499120110,6cyclictest2518000-21latency_hist10:45:020
244889499120105,6cyclictest2530780-21kworker/u8:1+flush-179:012:20:210
244889599119114,4cyclictest2500261-21kworker/u8:3+events_unbound10:00:261
244889599118112,4cyclictest2484782-21kworker/u8:1+events_unbound09:35:271
244889499118112,4cyclictest2447433-21kworker/u8:2+events_unbound07:50:260
244889499118109,6cyclictest2484782-21kworker/u8:1+flush-179:009:20:220
244889599117113,3cyclictest2539286-21kworker/u8:3+events_unbound11:55:241
244889599117111,5cyclictest2545599-21kworker/u8:3+flush-179:012:10:241
244889499116110,4cyclictest2471057-21kworker/u8:0+flush-179:008:55:260
244889499116106,7cyclictest2510048-21latency_hist10:20:010
244889599115109,4cyclictest2503483-21kworker/u8:0+flush-179:010:50:211
244889499115108,5cyclictest2454815-21kworker/u8:3+flush-179:007:30:280
244889499115108,5cyclictest2454815-21kworker/u8:3+flush-179:007:30:280
244889499115106,6cyclictest2534201-21kworker/u8:0+events_unbound11:35:020
244889499115105,8cyclictest2497021-21kworker/u8:0+events_unbound09:50:010
244889599114110,3cyclictest2534201-21kworker/u8:0+events_unbound11:40:251
244889599114109,4cyclictest2447433-21kworker/u8:2+events_unbound08:00:261
244889599114104,4cyclictest2518236-21kworker/u8:3+events_unbound11:10:221
244889499114106,6cyclictest2547188-21kworker/u8:2+flush-179:012:25:240
244889499114105,4cyclictest2518236-21kworker/u8:3+events_unbound10:55:260
244889499113108,4cyclictest2534201-21kworker/u8:0+events_unbound12:05:250
244889499113104,6cyclictest2447433-21kworker/u8:2+flush-179:008:00:200
244889599112108,3cyclictest2485886-21kworker/u8:3+events_unbound09:10:251
244889599112100,9cyclictest2524619-21apt-get11:05:121
244889599112100,9cyclictest2524619-21apt-get11:05:111
244889499112107,4cyclictest2447433-21kworker/u8:2+events_unbound07:15:250
244889499112107,3cyclictest2550433-21kworker/u8:0+flush-179:012:30:220
244889499112106,4cyclictest2447433-21kworker/u8:2+flush-179:008:05:280
244889499112105,4cyclictest2447433-21kworker/u8:2+events_unbound08:20:160
244889499112103,7cyclictest2447433-21kworker/u8:2+flush-179:008:20:010
244889499112103,7cyclictest2447433-21kworker/u8:2+flush-179:008:20:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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