You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-08-25 - 01:25
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 Aug 24, 2026 12:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
371003799164152,9cyclictest3798828-21latency_hist11:45:001
371003599138119,16cyclictest3751598-21latency_hist09:20:010
371003599137125,8cyclictest3776265-21latency_hist10:35:010
371003599134118,13cyclictest3740467-21latency_hist08:45:010
371003799131127,3cyclictest3738926-21kworker/u8:3+events_unbound08:45:251
371003799131124,5cyclictest3761403-21kworker/u8:1+flush-179:010:50:011
371003799127115,9cyclictest510-21rs:main1
371003799127115,9cyclictest510-21rs:main1
371003799125114,8cyclictest3735684-21latency_hist08:30:011
371003599124117,4cyclictest3730934-21kworker/u8:3+flush-179:008:25:240
371003799119114,4cyclictest3805179-21kworker/u8:0+events_unbound12:10:241
371003799119104,12cyclictest3785829-21latency_hist11:05:011
371003599119110,6cyclictest3716293-21latency_hist07:30:020
371003599119110,6cyclictest3716293-21latency_hist07:30:010
371003799118113,4cyclictest3709979-21kworker/u8:1+flush-179:007:15:241
371003599118110,6cyclictest3751576-21kworker/u8:0+flush-179:010:10:010
371003599117104,10cyclictest3785845-21apt-get11:04:590
371003799115104,7cyclictest3753206-21latency_hist09:25:011
371003799114108,4cyclictest3745280-21kworker/u8:2+events_unbound09:30:251
371003799112108,3cyclictest3730934-21kworker/u8:3+events_unbound08:30:221
371003799112107,4cyclictest3751576-21kworker/u8:0+flush-179:010:25:261
371003799112106,4cyclictest3784477-21kworker/u8:3+flush-179:011:05:281
371003599112104,6cyclictest3761403-21kworker/u8:1+flush-179:009:55:000
37100379911099,8cyclictest3802000-21latency_hist11:55:011
371003799110105,4cyclictest3777918-21kworker/u8:0+flush-179:010:50:251
371003799110104,4cyclictest3738909-21kworker/u8:1+events_unbound08:55:281
371003599110103,5cyclictest3784202-21kworker/u8:1+flush-179:012:00:220
37100359910999,7cyclictest3709979-21kworker/u8:1+flush-179:007:20:220
371003799108104,3cyclictest3761403-21kworker/u8:1+events_unbound10:40:251
371003799107103,3cyclictest3706865-21kworker/u8:0+events_unbound07:35:201
37100379910697,3cyclictest3745280-21kworker/u8:2+events_unbound09:35:191
37100359910597,6cyclictest3761403-21kworker/u8:1+events_unbound10:30:010
37100379910499,3cyclictest3709979-21kworker/u8:1+events_unbound07:10:161
37100379910398,3cyclictest3745280-21kworker/u8:2+events_unbound09:00:221
37100379910398,3cyclictest3745280-21kworker/u8:2+events_unbound09:00:221
37100379910391,9cyclictest3766463-21latency_hist10:05:011
37100379910292,4cyclictest3784202-21kworker/u8:1+events_unbound11:35:231
37100359910288,11cyclictest1213033-21systemd-journal07:55:010
37100379910196,3cyclictest3808348-21kworker/u8:2+events_unbound12:25:151
37100379910195,4cyclictest3706865-21kworker/u8:0+events_unbound07:50:171
37100379910186,12cyclictest1213033-21systemd-journal07:30:001
37100379910186,12cyclictest1213033-21systemd-journal07:30:001
37100379910095,4cyclictest3726104-21kworker/u8:1+events_unbound08:20:131
37100379910091,3cyclictest3784202-21kworker/u8:1+events_unbound11:15:151
37100379910091,3cyclictest3784202-21kworker/u8:1+events_unbound11:15:141
37100359910092,5cyclictest3777918-21kworker/u8:0+flush-179:010:55:160
3710037999988,9cyclictest3731156-21apt-get08:15:121
3710037999893,4cyclictest3789303-21kworker/u8:2+events_unbound11:20:281
3710035999889,7cyclictest3751576-21kworker/u8:0+flush-179:010:10:150
3710035999889,7cyclictest3751576-21kworker/u8:0+flush-179:010:10:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional