You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-05-08 - 04:43

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 #4

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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rackeslot4s.osadl.org (updated Fri May 08, 2026 00:44:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1871573994237,3cyclictest2157893-21latency_hist23:45:003
1871565994036,3cyclictest1887300-21kworker/u8:2+events_unbound19:32:071
1871559994036,3cyclictest2204568-21apt-get00:30:100
1871565993631,4cyclictest1949292-21apt-get20:25:111
1871565993428,4cyclictest1964633-21gpgv20:40:001
1871565993324,6cyclictest2132132-21latency_hist23:20:001
1871559993328,4cyclictest1887065-21latency_hist19:25:010
1871565993125,4cyclictest2189106-21apt-get00:15:111
1871559993125,4cyclictest2137293-21latency_hist23:25:000
1871565993025,4cyclictest2147836-21apt-get23:35:111
1871565992923,4cyclictest509-21rs:main1
1871565992923,4cyclictest2100829-21latency_hist22:50:001
1871559992926,2cyclictest2058825-21kworker/u8:2+flush-259:022:20:110
1871559992923,4cyclictest2042517-21ntpq21:50:220
1871573992825,2cyclictest2116959-21apt-get23:05:123
1871565992821,5cyclictest1917144-21ntpq19:50:211
1871559992825,2cyclictest2152961-21kworker/u8:4+flush-259:023:50:150
1871573992723,3cyclictest1970493-21/usr/sbin/munin20:45:143
1871559992724,2cyclictest1996773-21kworker/u8:3+events_unbound21:22:520
1871559992724,2cyclictest1959634-21kworker/u8:4+flush-259:021:13:030
1871573992623,2cyclictest2017857-21kworker/u8:2+flush-259:021:35:243
1871569992621,3cyclictest252-21systemd-journal22:50:002
1871569992621,3cyclictest1959634-21kworker/u8:4+flush-259:021:20:002
1871569992620,4cyclictest252-21systemd-journal19:11:062
1871565992621,4cyclictest1975404-21kworker/u8:0+flush-259:021:00:001
1871573992522,2cyclictest2085005-21kworker/u8:3+flush-259:022:45:163
1871573992522,2cyclictest1985758-21kworker/u8:1+flush-259:021:10:013
1871573992522,2cyclictest1923212-21kworker/u8:0+flush-259:020:10:013
1871565992521,2cyclictest1876481-21fwupd19:13:001
1871559992520,4cyclictest2059070-21apt-get22:10:130
1871573992420,3cyclictest2033065-21kworker/u8:0+flush-259:021:50:003
1871569992420,3cyclictest1902598-21kworker/u8:2+flush-259:020:55:212
1871569992419,4cyclictest2052824-21ntpq22:00:212
1871565992421,2cyclictest1959634-21kworker/u8:4+events_unbound21:54:111
1871559992418,4cyclictest2116694-21latency_hist23:05:000
1871573992318,4cyclictest2017897-21apt-get21:30:133
1871565992316,5cyclictest2163033-21latency_hist23:50:001
1871559992320,2cyclictest1985758-21kworker/u8:1+flush-259:021:00:200
1871559992319,3cyclictest1897152-21kworker/u8:0+events_unbound19:45:150
1871559992318,4cyclictest1959672-21apt-get20:35:110
1871573992219,2cyclictest1902598-21kworker/u8:2+flush-259:020:55:113
1871573992218,3cyclictest2152961-21kworker/u8:4+flush-259:023:50:143
1871573992218,3cyclictest2152961-21kworker/u8:4+flush-259:000:05:013
1871569992219,2cyclictest1985758-21kworker/u8:1+flush-259:021:05:172
1871569992218,3cyclictest1902598-21kworker/u8:2+events_unbound20:00:212
1871569992217,4cyclictest2100943-21gpgv22:50:002
1871569992217,3cyclictest252-21systemd-journal20:20:012
1871569992216,4cyclictest252-21systemd-journal20:11:072
1871569992216,4cyclictest252-21systemd-journal00:02:102
1871565992219,2cyclictest1996253-21apt-key21:10:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional