You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-05-15 - 17:09

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 #2, slot #7

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 100 highest latencies:
System rack2slot7s.osadl.org (updated Fri May 15, 2026 12:43:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
797280995843,10cyclictest4149711-21cups-browsed10:30:581
797280994839,6cyclictest991520-21aten_r2power_fr12:25:411
797279994835,10cyclictest912804-21ssh10:47:340
797280994739,5cyclictest1051-21mta-sts-daemon11:55:551
797279994638,6cyclictest4149711-21cups-browsed11:36:060
797281994436,5cyclictest889870-21grep10:20:012
797280994435,5cyclictest0-21swapper/110:47:341
797279994437,4cyclictest889869-21munin-run10:20:010
797279994436,5cyclictest938343-21systemd-run11:20:010
797281994334,6cyclictest986819-21systemd-run12:20:012
797281994333,6cyclictest1-21systemd07:30:012
797280994335,5cyclictest833286-21ssh09:10:011
797279994335,5cyclictest998947-21systemd-run12:35:010
797281994234,5cyclictest837332-21systemd-run09:15:012
79728199422,35cyclictest846795-21ssh09:25:542
797280994233,6cyclictest824259-21basename08:40:011
797281994133,5cyclictest906128-21latency_hist10:40:022
797281994132,6cyclictest421-21dbus-daemon07:15:592
797281994032,5cyclictest930269-21latency_hist11:10:022
797281994032,5cyclictest910068-21systemd-run10:45:012
797281994031,6cyclictest936246-21unixbench_singl11:16:062
797280994033,5cyclictest0-21swapper/111:50:011
797280994032,5cyclictest931738-21proc_pri11:10:591
797280994032,5cyclictest931738-21proc_pri11:10:591
797280994032,5cyclictest930256-21systemd-run11:10:021
797279994033,5cyclictest899867-21unixbench_multi10:31:040
797281993932,4cyclictest0-21swapper/210:47:342
797280993933,3cyclictest0-21swapper/110:40:021
797280993931,5cyclictest834161-21fschecks_count09:10:451
797280993931,5cyclictest806789-21fschecks_count07:40:451
797280993929,7cyclictest4149711-21cups-browsed11:02:001
797280993929,6cyclictest420-21avahi-daemon09:39:141
797279993931,5cyclictest4149711-21cups-browsed07:20:010
797279993923,14cyclictest0-21swapper/008:25:010
79727999391,30cyclictest883157-21ssh10:10:560
797280993829,6cyclictest420-21avahi-daemon08:20:021
797280993829,6cyclictest261-21systemd-journal09:17:281
797280993827,8cyclictest806257-21munin-run07:40:011
797279993826,10cyclictest862324-21aten_r2power_po09:45:430
79727999381,32cyclictest895376-21ssh10:25:570
79727999381,32cyclictest895376-21ssh10:25:570
797281993729,5cyclictest1002978-21munin-run12:40:012
797281993729,5cyclictest1002978-21munin-run12:40:012
797280993731,3cyclictest0-21swapper/111:20:011
797280993730,4cyclictest867569-21tail09:51:061
797280993729,5cyclictest907249-21needreboot10:40:521
797280993729,5cyclictest858891-21ssh09:40:521
797280993728,6cyclictest4149711-21cups-browsed09:00:431
797280993728,6cyclictest4149711-21cups-browsed09:00:431
797280993726,8cyclictest850682-21needreboot09:30:491
797279993730,4cyclictest857784-21latency_hist09:40:030
797281993628,5cyclictest4149711-21cups-browsed11:14:502
797281993628,5cyclictest4149711-21cups-browsed11:14:502
797281993627,5cyclictest990841-21munin-plugin-st12:25:012
797281993626,7cyclictest1055-21mta-sts-daemon10:55:512
79728199362,24cyclictest979980-21ssh12:10:522
797280993630,4cyclictest830255-21sendmail09:00:001
797280993628,5cyclictest548-21gdbus07:20:011
797280993625,8cyclictest833254-21diskmemload12:25:011
797279993629,3cyclictest922461-21kworker/u8:5-events_unbound11:05:570
797279993628,5cyclictest421-21dbus-daemon12:30:010
797281993528,3cyclictest0-21swapper/210:20:582
797281993526,6cyclictest819784-21true08:25:012
797281993524,8cyclictest940134-21timerwakeupswit11:21:042
797280993527,5cyclictest919012-21fschecks_time10:55:451
797280993527,5cyclictest889888-21idleruntime-cro10:20:011
797280993527,5cyclictest877810-21systemd10:05:021
797280993527,5cyclictest1002983-21ssh12:40:011
797280993527,5cyclictest1002983-21ssh12:40:011
797279993529,4cyclictest833254-21diskmemload09:26:050
797279993526,5cyclictest982892-21latency_hist12:15:020
797281993428,3cyclictest0-21swapper/209:55:012
797280993428,3cyclictest0-21swapper/109:25:011
797280993427,5cyclictest797278-21cyclictest12:05:451
797280993427,4cyclictest871176-21proc_pri09:55:591
797280993426,5cyclictest952171-21switchtime11:36:051
797280993426,5cyclictest885963-21latency_hist10:15:031
797280993425,6cyclictest420-21avahi-daemon12:17:031
797279993429,2cyclictest0-21swapper/012:10:010
797279993428,4cyclictest999800-21ssh12:35:430
797279993428,4cyclictest999800-21ssh12:35:430
797279993425,7cyclictest954731-21kworker/u8:6-rpciod11:50:010
797281993328,2cyclictest0-21swapper/209:20:012
797281993328,2cyclictest0-21swapper/208:55:012
797281993327,3cyclictest0-21swapper/211:30:012
797281993326,4cyclictest0-21swapper/210:00:452
797281993326,3cyclictest0-21swapper/212:25:432
797281993325,5cyclictest548-21gdbus09:56:002
797281993325,5cyclictest1-21systemd12:10:022
797281993324,6cyclictest4149711-21cups-browsed10:50:162
797281993323,7cyclictest440-21thd12:00:572
797281993323,5cyclictest0-21swapper/211:55:572
797281993322,8cyclictest899033-21latency10:30:472
797280993325,5cyclictest822745-21cron08:35:011
797280993323,7cyclictest938961-21basename11:20:421
797279993328,2cyclictest0-21swapper/009:25:010
797279993327,4cyclictest955819-21ssh11:40:530
797279993327,4cyclictest923463-21ntp_kernel_pll_11:00:520
797279993326,5cyclictest0-21swapper/009:40:420
797279993326,4cyclictest948383-21unixbench_singl11:31:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional