You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-08-07 - 17:57
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 Fri Aug 07, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
374149399165140,22cyclictest3752930-21latency_hist07:45:011
374149199163151,8cyclictest3736829-21kworker/u8:0+flush-179:007:20:010
374149199152144,6cyclictest3815234-21kworker/u8:1+flush-179:011:25:000
374149399144136,6cyclictest3764096-21http08:20:011
374149199141133,6cyclictest3815234-21kworker/u8:1+events_unbound11:00:000
374149199141131,7cyclictest3762454-21latency_hist08:15:000
374149399136125,8cyclictest3789266-21kworker/u8:2+flush-179:009:35:011
374149399134123,8cyclictest3845705-21latency_hist12:30:011
374149199134122,8cyclictest3810149-21kworker/u8:3+flush-179:011:10:010
374149199133123,7cyclictest3774096-21kworker/u8:0+flush-179:008:50:000
374149199131122,6cyclictest3815234-21kworker/u8:1+events_unbound11:30:010
374149199130124,4cyclictest3836124-21kworker/u8:2+flush-179:012:15:000
374149199130120,7cyclictest3844155-21kworker/u8:3+flush-179:012:35:180
374149399129121,5cyclictest3789266-21kworker/u8:2+flush-179:009:40:241
374149199128118,7cyclictest3828172-21kworker/u8:0+events_unbound11:40:010
374149199126115,8cyclictest3767497-21latency_hist08:30:000
374149399124117,5cyclictest3836124-21kworker/u8:2+events_unbound12:05:011
374149399124117,5cyclictest3836124-21kworker/u8:2+events_unbound12:05:011
374149199124117,5cyclictest3841458-21kworker/u8:1+events_unbound12:25:010
374149199124117,5cyclictest3810149-21kworker/u8:3+flush-179:011:00:240
374149199122111,8cyclictest1213033-21systemd-journal11:55:000
374149199120110,8cyclictest3736829-21kworker/u8:0+events_unbound07:15:010
374149199120110,8cyclictest3736829-21kworker/u8:0+events_unbound07:15:000
374149399119113,5cyclictest3825052-21kworker/u8:2+events_unbound11:35:011
374149399119112,5cyclictest3777326-21apt-get09:00:021
374149399119107,9cyclictest3777326-21apt-get09:00:001
374149199117108,7cyclictest3780746-21latency_hist09:10:010
374149399116105,8cyclictest3832972-21latency_hist11:50:011
374149399115102,10cyclictest3823155-21latency_hist11:20:011
374149399113103,8cyclictest3792396-21kworker/u8:3+events_unbound10:05:001
374149199113107,4cyclictest3800273-21kworker/u8:0+events_unbound10:30:000
374149399112105,5cyclictest3800273-21kworker/u8:0+flush-179:010:25:001
374149399112103,7cyclictest3836124-21kworker/u8:2+events_unbound12:00:011
374149199112105,5cyclictest3792396-21kworker/u8:3+flush-179:010:10:000
374149199111105,4cyclictest3800273-21kworker/u8:0+events_unbound10:45:010
374149199111104,5cyclictest3818429-21kworker/u8:2+events_unbound11:15:240
374149199111103,4cyclictest3736829-21kworker/u8:0+flush-179:007:20:240
374149199110103,6cyclictest3759328-21kworker/u8:1+events_unbound08:40:220
374149399109101,5cyclictest3798172-21kworker/u8:1+flush-179:010:05:221
374149199109103,5cyclictest3841458-21kworker/u8:1+flush-179:012:20:010
374149199109102,5cyclictest3739935-21kworker/u8:1+events_unbound07:50:240
374149199108100,6cyclictest3803806-21latency_hist10:20:010
37414939910798,4cyclictest3828172-21kworker/u8:0+events_unbound11:35:221
374149199107102,4cyclictest3752962-21kworker/u8:3+flush-179:007:50:010
37414939910699,4cyclictest3810149-21kworker/u8:3+events_unbound10:55:141
37414939910597,6cyclictest3800603-21kworker/u8:2+flush-179:010:35:201
37414919910594,9cyclictest3845962-21apt-get12:30:120
37414919910492,9cyclictest3751587-21apt-get07:40:100
37414939910397,5cyclictest3830350-21kworker/u8:1+flush-179:012:05:241
37414919910396,5cyclictest3759328-21kworker/u8:1+flush-179:008:20:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional