You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-03-29 - 23:40

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 #8, 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.
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 rack8slot4s.osadl.org (updated Sun Mar 29, 2026 12:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26981222238183,17sleep30-21swapper/307:09:533
26980692229168,48sleep70-21swapper/707:09:097
26978592224163,19sleep40-21swapper/407:06:094
26978742220162,19sleep10-21swapper/107:06:221
26979492219186,21sleep20-21swapper/207:07:272
26980122215174,26sleep00-21swapper/007:08:220
26981062210180,19sleep50-21swapper/507:09:395
26978522206159,15sleep60-21swapper/607:06:036
2698357993026,1cyclictest201rcu_preempt12:05:123
2698364992924,4cyclictest0-21swapper/508:45:115
2698357992926,1cyclictest201rcu_preempt11:45:133
269836499270,1cyclictest0-21swapper/508:40:005
2698357992623,2cyclictest2827860-21awk10:55:013
2698348992623,2cyclictest690-21gdbus09:40:001
2698369992522,2cyclictest2807842-21dump-pmu-power10:20:007
269834499250,24cyclictest0-21swapper/008:25:130
269836999240,23cyclictest2876965-21perf12:20:007
269836999240,23cyclictest2742272-21apt-get08:25:127
2698364992421,2cyclictest2710820-21apt-get07:30:125
269836499240,1cyclictest0-21swapper/511:25:125
269836499240,0cyclictest0-21swapper/509:10:135
269836499240,0cyclictest0-21swapper/509:10:135
2698362992420,3cyclictest2830993-21tr11:00:014
269835799240,23cyclictest2807828-21cron10:20:003
269835399240,23cyclictest0-21swapper/209:30:122
269835399240,1cyclictest2730448-21idleruntime-cro08:05:002
269834499240,24cyclictest0-21swapper/008:50:120
269834499240,0cyclictest2771110-21apt-get09:15:110
269834499240,0cyclictest2771110-21apt-get09:15:110
2698369992321,1cyclictest2883098-21apt-get12:30:127
2698369992321,1cyclictest2766623-21ntpq09:05:187
2698369992321,1cyclictest2736544-21apt-get08:15:127
269836999230,22cyclictest2816426-21munin-run10:35:007
269836999230,0cyclictest0-21swapper/710:20:117
2698367992321,1cyclictest0-21swapper/612:05:006
269836799230,23cyclictest2733282-21perf08:10:006
2698364992321,2cyclictest0-21swapper/508:25:125
269836499230,22cyclictest2807852-21munin-run10:20:015
269836499230,22cyclictest2716565-21apt-get07:40:105
2698362992321,1cyclictest0-21swapper/410:55:014
269836299230,21cyclictest2785428-21apt-get09:40:124
2698357992320,2cyclictest2727542-21latency_hist08:00:003
269835799230,22cyclictest2736128-21munin-run08:15:003
269835799230,1cyclictest0-21swapper/310:25:113
269835399230,22cyclictest2736544-21apt-get08:15:112
269835399230,22cyclictest0-21swapper/211:50:122
2698348992321,1cyclictest2813990-21apt-get10:30:111
2698348992320,2cyclictest2716143-21awk07:40:001
269834899230,22cyclictest2868126-21apt-get12:05:011
269834899230,22cyclictest2787874-21idleruntime-cro09:45:001
269834899230,22cyclictest0-21swapper/108:15:001
269834899230,22cyclictest0-21swapper/108:10:001
269834899230,0cyclictest0-21swapper/108:00:131
269834499230,22cyclictest0-21swapper/010:40:130
2698369992220,1cyclictest2811138-21apt-get10:25:117
269836999220,21cyclictest2793982-21apt-get09:55:107
269836999220,1cyclictest2762114-21perf09:00:007
269836999220,1cyclictest2727994-21apt-get08:00:137
269836999220,1cyclictest0-21swapper/712:05:127
269836999220,1cyclictest0-21swapper/712:00:007
269836799220,22cyclictest0-21swapper/610:55:016
269836799220,21cyclictest0-21swapper/609:25:126
269836799220,21cyclictest0-21swapper/609:00:116
269836799220,1cyclictest0-21swapper/610:55:136
269836799220,1cyclictest0-21swapper/610:05:006
2698364992222,0cyclictest0-21swapper/511:20:125
2698364992219,3cyclictest2764983-21perf09:05:005
2698364992219,3cyclictest0-21swapper/511:50:115
269836499220,21cyclictest2779694-21apt-get09:30:115
269836499220,21cyclictest0-21swapper/511:40:135
269836499220,21cyclictest0-21swapper/509:35:145
2698362992221,1cyclictest0-21swapper/410:45:124
2698362992220,1cyclictest2771110-21apt-get09:15:114
2698362992220,1cyclictest2771110-21apt-get09:15:114
2698362992220,1cyclictest0-21swapper/410:10:124
269836299220,21cyclictest0-21swapper/411:25:124
269836299220,21cyclictest0-21swapper/410:25:114
269836299220,21cyclictest0-21swapper/408:30:124
2698357992222,0cyclictest0-21swapper/309:15:113
2698357992222,0cyclictest0-21swapper/309:15:113
2698357992221,1cyclictest51-21ksoftirqd/308:10:003
2698357992221,1cyclictest0-21swapper/312:30:123
2698357992221,1cyclictest0-21swapper/308:25:003
269835799220,22cyclictest0-21swapper/311:30:003
269835799220,22cyclictest0-21swapper/307:15:113
2698353992221,1cyclictest2868814-21apt-get12:05:122
2698353992220,1cyclictest2796854-21apt-get10:00:112
269835399220,22cyclictest2770709-21awk09:15:002
269835399220,22cyclictest2770709-21awk09:15:002
269835399220,22cyclictest2747561-21munin-run08:35:012
269835399220,22cyclictest0-21swapper/209:40:002
269835399220,21cyclictest0-21swapper/212:20:112
269835399220,21cyclictest0-21swapper/211:45:132
269835399220,21cyclictest0-21swapper/211:15:112
269835399220,21cyclictest0-21swapper/211:05:132
2698348992220,1cyclictest2756818-21apt-get08:50:121
269834899220,21cyclictest2765397-21apt-get09:05:121
269834899220,1cyclictest2876995-21sendmail-msp12:20:001
269834899220,1cyclictest0-21swapper/110:20:111
269834899220,1cyclictest0-21swapper/109:25:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional