You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-08-13 - 11:09

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 Thu Aug 13, 2026 00:43:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
786313996048,8cyclictest907980-21cron23:30:011
786313995646,6cyclictest898847-21latency_hist23:15:011
786313995646,6cyclictest898847-21latency_hist23:15:011
786313995239,9cyclictest845006-21ssh21:45:541
786313995039,7cyclictest420-21avahi-daemon22:45:141
786312994817,9cyclictest0-21swapper/023:40:550
786312994730,11cyclictest12650irq/32-eth023:20:560
78631499465,32cyclictest857253-21ssh22:05:562
786313994533,6cyclictest0-21swapper/122:25:011
786313994533,6cyclictest0-21swapper/122:25:011
786314994436,5cyclictest823078-21sshd21:10:512
786314994335,4cyclictest0-21swapper/220:20:002
78631499433,35cyclictest863429-21ssh22:15:562
786313994332,7cyclictest3284324-21cups-browsed22:52:231
786313994234,5cyclictest874397-21cron22:35:011
786313994232,6cyclictest914074-21cron23:40:011
786312994233,6cyclictest420-21avahi-daemon23:14:580
786312994233,6cyclictest420-21avahi-daemon23:14:580
786314994131,6cyclictest421-21dbus-daemon22:41:012
786313994130,7cyclictest902078-21latency_hist23:20:021
786314994033,4cyclictest938622-21kworker/u8:0-rpciod00:20:592
786314994033,3cyclictest0-21swapper/222:25:012
786314994033,3cyclictest0-21swapper/222:25:012
786314994031,6cyclictest3284324-21cups-browsed19:55:472
786313994029,7cyclictest0-21swapper/121:26:001
786313994027,9cyclictest949268-21switchtime00:36:061
786312994033,4cyclictest891244-21timerandwakeup23:01:050
786312994026,11cyclictest935555-21ssh00:15:020
786312994023,14cyclictest799864-21latency_hist19:55:020
786314993931,5cyclictest932462-21ssh00:10:012
786314993930,5cyclictest862170-21ssh22:15:012
786313993934,3cyclictest886000-21kworker/u8:3-xprtiod23:00:011
786312993922,12cyclictest12650irq/32-eth022:20:580
786312993922,12cyclictest12650irq/32-eth022:20:580
786314993825,3cyclictest829801-21ntpq21:21:032
786313993829,6cyclictest796797-21cron19:45:011
786314993731,3cyclictest0-21swapper/200:00:012
786314993730,3cyclictest0-21swapper/222:45:572
786314993730,3cyclictest0-21swapper/221:45:022
786314993729,5cyclictest914087-21munin-run23:40:012
786314993728,6cyclictest265-21systemd-journal22:05:012
786313993731,3cyclictest0-21swapper/119:40:011
786313993729,5cyclictest1002-21mta-sts-daemon00:31:201
786313993729,4cyclictest825361-21idleruntime-cro21:15:011
786313993726,8cyclictest801283-21cron20:00:001
786312993730,5cyclictest3284324-21cups-browsed23:55:560
786312993727,7cyclictest889670-21munin-plugin-st23:00:010
786312993727,6cyclictest936747-21ssh00:15:590
786314993628,5cyclictest884999-21mailstats22:51:022
786314993627,5cyclictest837803-21latency_hist21:35:022
786314993627,5cyclictest837803-21latency_hist21:35:022
786314993625,8cyclictest874856-21/usr/sbin/munin22:36:042
78631399364,25cyclictest841997-21ssh21:40:571
786313993630,3cyclictest0-21swapper/100:15:011
786313993628,5cyclictest1-21systemd23:05:011
786313993627,6cyclictest810834-21fschecks_time20:30:511
786313993626,6cyclictest1-21systemd19:55:011
786313993625,6cyclictest0-21swapper/123:50:581
78631399361,27cyclictest863289-21ssh22:15:511
786312993629,5cyclictest151ktimers/000:05:580
786312993622,11cyclictest877450-21ssh22:40:010
786312993617,12cyclictest864199-21ssh22:16:460
78631299361,30cyclictest832923-21ssh21:26:030
78631499353,27cyclictest897043-21ssh23:11:002
78631499353,27cyclictest897043-21ssh23:11:002
786314993528,3cyclictest0-21swapper/223:51:052
786314993527,5cyclictest819317-21systemd-run21:00:012
786314993527,5cyclictest793802-21munin-plugin-st19:35:012
786314993527,5cyclictest421-21dbus-daemon00:15:022
78631399354,21cyclictest893965-21sshd23:06:021
786313993529,3cyclictest0-21swapper/119:20:011
786313993527,5cyclictest915183-21needreboot23:40:521
786312993527,5cyclictest918845-21unixbench-2d23:46:060
786312993527,5cyclictest420-21avahi-daemon21:53:270
78631499345,24cyclictest915401-21ssh23:41:012
786314993428,3cyclictest0-21swapper/200:19:032
786314993427,4cyclictest899578-21ssh23:15:482
786314993426,4cyclictest0-21swapper/223:06:022
786314993425,6cyclictest421-21dbus-daemon23:05:012
786313993427,4cyclictest838337-21aten_r2power_vo21:35:461
78631399341,5cyclictest171rcu_preempt20:40:541
786312993427,4cyclictest869201-21kernelversion22:25:500
786312993426,5cyclictest945151-21/usr/sbin/munin00:30:460
786312993426,5cyclictest822291-21cron21:10:010
786312993426,5cyclictest3284324-21cups-browsed21:40:350
786312993420,4cyclictest171rcu_preempt22:00:560
786312993417,10cyclictest912161-21ssh23:35:530
78631299341,6cyclictest171rcu_preempt21:30:570
78631299341,6cyclictest171rcu_preempt21:30:570
786314993327,3cyclictest0-21swapper/221:35:492
786314993326,3cyclictest0-21swapper/200:40:032
786314993325,5cyclictest816318-21systemd20:50:022
786314993325,5cyclictest0-21swapper/222:35:012
786314993325,5cyclictest0-21swapper/219:20:012
786313993327,3cyclictest0-21swapper/100:00:021
786313993326,4cyclictest820675-21unixbench_multi21:01:061
786313993326,3cyclictest0-21swapper/121:20:011
786313993325,4cyclictest0-21swapper/119:15:011
786313993324,6cyclictest853005-21cat22:00:011
786313993320,8cyclictest0-21swapper/123:30:541
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional