You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-03-30 - 13:41
OSADL QA Farm

OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

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 
Special  All - All RT - Optimization - Ethernet - Thumbnails - Next 		  
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 Mar 30, 2026 00:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
3184436998878,7cyclictest3223317-21latency_hist21:10:000
3184436998677,7cyclictest266-21systemd-journal00:00:000
3184436998474,7cyclictest266-21systemd-journal20:30:020
3184436998474,7cyclictest266-21systemd-journal20:30:020
3184439998274,6cyclictest3276623-21latency_hist23:55:001
3184439998171,7cyclictest266-21systemd-journal19:55:011
3184439998171,7cyclictest266-21systemd-journal19:55:001
3184439998073,5cyclictest3284955-21kworker/u8:2+events_unbound00:30:251
3184439997770,4cyclictest3276601-21kworker/u8:2+events_unbound00:00:151
3184439997768,6cyclictest3206837-21kworker/u8:1+events_unbound20:30:211
3184439997768,6cyclictest3206837-21kworker/u8:1+events_unbound20:30:201
3184439997670,4cyclictest3284955-21kworker/u8:2+events_unbound00:20:231
3184439997664,9cyclictest510-21rs:main1
3184439997469,4cyclictest3167972-21kworker/u8:3+flush-179:019:15:211
3184439997466,6cyclictest3262335-21kworker/u8:1+flush-179:023:20:261
3184439997466,6cyclictest3262335-21kworker/u8:1+flush-179:023:20:261
3184436997468,4cyclictest3215085-21kworker/u8:1+flush-179:020:45:140
3184439997363,7cyclictest3278274-21kworker/u8:1+flush-179:000:15:211
3184439997363,4cyclictest3231249-21kworker/u8:3+events_unbound21:35:221
3184439997266,4cyclictest3215085-21kworker/u8:1+events_unbound21:25:281
3184439997165,4cyclictest3190727-21kworker/u8:0+flush-179:019:50:011
3184439997164,5cyclictest3270236-21kworker/u8:3+flush-179:000:05:151
3184439997064,4cyclictest3167972-21kworker/u8:3+flush-179:019:25:161
3184439997057,10cyclictest266-21systemd-journal23:50:011
3184439997057,10cyclictest266-21systemd-journal23:50:011
3184439997048,13cyclictest3278274-21kworker/u8:1+events_unbound00:35:221
3184439996964,4cyclictest3239459-21kworker/u8:1+flush-179:022:15:261
3184439996962,6cyclictest3210047-21kworker/u8:0+events_unbound20:35:241
3184439996954,5cyclictest3256169-21kworker/u8:2+events_unbound23:00:181
3184436996961,6cyclictest3239483-21latency_hist22:00:000
3184439996861,5cyclictest3231249-21kworker/u8:3+events_unbound21:40:031
3184439996861,5cyclictest3210203-21kworker/u8:2+events_unbound21:15:011
3184436996859,7cyclictest3259127-21latency_hist23:00:020
3184439996762,4cyclictest3190727-21kworker/u8:0+events_unbound19:40:251
3184439996760,5cyclictest3229939-21apt-get21:30:111
3184439996757,7cyclictest3203663-21kworker/u8:2+events_unbound20:10:161
3184436996757,8cyclictest3281462-21latency_hist00:10:010
3184439996653,4cyclictest3198881-21kworker/u8:3+events_unbound19:55:131
3184439996560,4cyclictest3210047-21kworker/u8:0+flush-179:020:50:211
3184439996558,6cyclictest3276601-21kworker/u8:2+flush-179:023:55:211
3184439996558,5cyclictest3242916-21kworker/u8:0+events_unbound22:25:011
3184439996555,7cyclictest3229660-21kworker/u8:0+events_unbound22:00:141
3184439996554,8cyclictest510-21rs:main1
3184439996455,4cyclictest3265733-21kworker/u8:0+events_unbound23:25:221
3184439996360,2cyclictest3262335-21kworker/u8:1+flush-179:023:30:201
3184439996358,4cyclictest3242916-21kworker/u8:0+events_unbound22:10:221
3184439996358,4cyclictest3210203-21kworker/u8:2+flush-179:021:24:561
3184436996355,5cyclictest3260715-21latency_hist23:05:000
3184436996251,9cyclictest266-21systemd-journal21:45:000
3184439996157,3cyclictest3242916-21kworker/u8:0+events_unbound22:45:231
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional