You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-01-11 - 09:33

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 shadow in rack #e, slot #8

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
  Congatec
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 100 highest latencies:
System rackeslot8s.osadl.org (updated Sun Jan 11, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
37827799912420,1239cyclictest39598852sleep33
37827799911431,1138cyclictest4128083-21turbostat3
3782779992015,2cyclictest3998303-21sleep3
3782779991914,2cyclictest0-21swapper/33
39216322180,7sleep03922306-21cut0
3782779991815,1cyclictest0-21swapper/33
378277999177,7cyclictest4076471-21turbostat3
378277999172,11cyclictest4056627-21sleep3
3782779991714,1cyclictest0-21swapper/33
378277999171,11cyclictest4096147-21taskset3
41015882167,2sleep1171rcu_preempt1
378277999166,7cyclictest4095879-21turbostat3
378277999165,8cyclictest4010195-21taskset3
378277999165,7cyclictest38497462sleep33
3782779991613,1cyclictest0-21swapper/33
378277999161,11cyclictest3920955-21turbostat3
378277999161,10cyclictest4063337-21turbostat3
378277999154,8cyclictest3862944-21turbostat3
3782779991513,1cyclictest0-21swapper/33
3782779991512,1cyclictest0-21swapper/33
3782779991512,1cyclictest0-21swapper/33
3782779991512,1cyclictest0-21swapper/33
3782779991512,1cyclictest0-21swapper/33
3782779991512,1cyclictest0-21swapper/33
3782779991512,1cyclictest0-21swapper/33
3782779991512,1cyclictest0-21swapper/33
378277999151,11cyclictest4141486-21taskset3
378277999151,11cyclictest12246-21taskset3
378277999151,10cyclictest4102606-21taskset3
378277999151,10cyclictest3946403-21taskset3
378277999151,10cyclictest3803783-21taskset3
378277999144,7cyclictest39266462sleep33
3782779991413,0cyclictest0-21swapper/33
3782779991413,0cyclictest0-21swapper/33
3782779991412,1cyclictest0-21swapper/33
3782779991412,1cyclictest0-21swapper/33
3782779991412,1cyclictest0-21swapper/33
3782779991412,1cyclictest0-21swapper/33
3782779991412,1cyclictest0-21swapper/33
3782779991412,0cyclictest0-21swapper/33
3782779991412,0cyclictest0-21swapper/33
3782779991411,1cyclictest0-21swapper/33
3782779991411,1cyclictest0-21swapper/33
3782779991411,1cyclictest0-21swapper/33
3782779991411,1cyclictest0-21swapper/33
378277999141,10cyclictest4114346-21taskset3
378277999141,10cyclictest3891342-21taskset3
378277999141,10cyclictest3888171-21taskset3
378277999141,10cyclictest3875009-21taskset3
378277999141,10cyclictest3817603-21turbostat3
41934412130,10sleep24193946-21cut2
37891582135,2sleep23789176-21basename2
378277999134,7cyclictest4043571-21taskset3
378277999134,6cyclictest3830160-21taskset3
378277999131,9cyclictest9056-21taskset3
378277999131,9cyclictest3933508-21taskset3
378277999131,9cyclictest3837592-21taskset3
378277999131,10cyclictest4192816-21taskset3
378277999131,10cyclictest4047899-21taskset3
378277999131,10cyclictest4030599-21chrt3
3782779991311,0cyclictest0-21swapper/33
3782779991310,1cyclictest0-21swapper/33
3782779991310,1cyclictest0-21swapper/33
8682121,8sleep02912-21cut0
38210122121,8sleep03822946-21/usr/sbin/munin0
37983212122,6sleep03798324-21apt-get0
378277999124,6cyclictest39395782sleep33
378277999123,7cyclictest3972173-21taskset3
378277999121,9cyclictest4089318-21chrt3
378277999121,9cyclictest3836804-21taskset3
3782779991210,1cyclictest0-21swapper/33
378277999120,9cyclictest4173737-21taskset3
378277999120,9cyclictest3850014-21taskset3
40702712111,2sleep10-21swapper/11
39534382111,1sleep10-21swapper/11
378277999111,8cyclictest4134214-21taskset3
301798110,6rtkit-daemon4146930-21cat2
301798110,6rtkit-daemon4136237-21irqstats2
301798110,6rtkit-daemon3946996-21apt-get2
301798110,1rtkit-daemon0-21swapper/22
41799072100,7sleep04180132-21date0
39544192101,6sleep20-21swapper/22
301798100,6rtkit-daemon3986158-21sed2
301798100,5rtkit-daemon3933646-21sshd2
301798100,5rtkit-daemon3884151-21kthreadcore2
301798100,3rtkit-daemon3789414-21munin-node2
4135031291,6sleep14135193-21idleruntime1
4043357291,6sleep172-21kcompactd01
3978944291,5sleep23979174-21latency_hist2
3959909291,4sleep13959931-21apt-get1
3940779291,2sleep10-21swapper/11
3927653291,4sleep13927686-21apt-get1
3874951291,4sleep23875008-21ntp_states2
3862329290,5sleep23862557-21users2
3816670291,5sleep03816745-21ntp_states0
3797754290,6sleep23797773-21apt-get2
30179890,6rtkit-daemon667-21lldpd2
30179890,5rtkit-daemon638-21ntpd2
30179890,5rtkit-daemon636-21snmpd2
30179890,5rtkit-daemon4024618-21apt-get2
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional