You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-07-22 - 06:46

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 Wed Jul 22, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30147052240179,18sleep30-21swapper/319:07:293
30147172237168,22sleep60-21swapper/619:07:406
30145762237167,22sleep70-21swapper/719:05:407
30147962235166,56sleep20-21swapper/219:08:482
30146742229192,24sleep10-21swapper/119:07:021
30148302224190,22sleep00-21swapper/019:09:190
30123532224170,15sleep50-21swapper/519:05:055
30148722221161,50sleep40-21swapper/419:09:564
31240412530,0sleep20-21swapper/222:10:232
301509599290,24cyclictest3422186-21systemd-journal19:55:005
301509599280,0cyclictest0-21swapper/523:10:135
301509599270,22cyclictest3183970-21munin-run23:54:595
3015095992622,4cyclictest0-21swapper/519:30:015
3015095992620,5cyclictest0-21swapper/521:40:135
301509299260,4cyclictest3139733-21awk22:40:004
3015099992520,4cyclictest3057040-21sendmail20:20:007
301509999250,24cyclictest3104300-21sendmail21:40:007
3015097992523,1cyclictest3033465-21munin-run19:40:026
301509799250,24cyclictest0-21swapper/600:30:186
301509599253,4cyclictest0-21swapper/522:38:255
301509599253,4cyclictest0-21swapper/522:27:265
301509599253,4cyclictest0-21swapper/522:16:275
301509599253,4cyclictest0-21swapper/522:05:285
301509599253,4cyclictest0-21swapper/520:37:365
301509599253,4cyclictest0-21swapper/500:06:175
3015095992522,3cyclictest0-21swapper/519:45:215
3015095992521,4cyclictest0-21swapper/522:40:115
3015095992519,6cyclictest3057054-21perf20:20:005
3015095992519,5cyclictest0-21swapper/523:55:125
3015095992518,6cyclictest0-21swapper/521:40:015
301509599250,21cyclictest0-21swapper/520:30:125
301509299250,24cyclictest3186922-21sendmail00:00:004
301509299250,24cyclictest3127894-21systemctl22:20:004
301509099250,24cyclictest3018182-21919:15:023
301508699250,24cyclictest3151948-21apt-get23:00:132
301508299250,24cyclictest0-21swapper/020:05:180
301509999240,23cyclictest3072265-21apt-get20:45:127
301509999240,23cyclictest0-21swapper/719:40:187
301509799241,22cyclictest0-21swapper/621:20:146
301509799240,23cyclictest0-21swapper/623:20:006
301509599242,4cyclictest0-21swapper/523:33:205
301509599242,4cyclictest0-21swapper/521:54:295
301509599242,4cyclictest0-21swapper/521:54:295
301509599242,4cyclictest0-21swapper/520:59:345
301509599242,4cyclictest0-21swapper/520:48:355
301509599242,4cyclictest0-21swapper/519:20:435
301509599242,4cyclictest0-21swapper/500:39:145
301509599242,4cyclictest0-21swapper/500:28:155
3015095992420,4cyclictest0-21swapper/520:20:125
3015095992419,5cyclictest0-21swapper/521:15:125
3015092992422,1cyclictest3039793-21apt-get19:50:114
3015092992422,1cyclictest0-21swapper/422:45:134
301509099240,23cyclictest0-21swapper/323:20:133
3015086992423,1cyclictest3030944-21apt-get19:35:122
3015086992419,4cyclictest3175119-21cat23:39:592
301508599240,23cyclictest0-21swapper/121:35:141
301508299240,22cyclictest0-21swapper/021:15:120
318733222320,2sleep20-21swapper/200:00:132
3015099992323,0cyclictest0-21swapper/721:10:147
301509999230,23cyclictest3130847-21munin-plugin-st22:25:017
301509999230,22cyclictest0-21swapper/723:50:137
301509999230,22cyclictest0-21swapper/722:25:207
301509999230,1cyclictest0-21swapper/723:00:137
3015097992322,1cyclictest0-21swapper/622:30:006
3015097992322,1cyclictest0-21swapper/620:10:136
3015097992321,2cyclictest0-21swapper/619:10:126
301509799231,21cyclictest0-21swapper/600:35:336
301509799231,21cyclictest0-21swapper/600:00:136
301509799230,22cyclictest0-21swapper/623:25:006
301509799230,22cyclictest0-21swapper/622:30:036
301509799230,22cyclictest0-21swapper/621:35:196
301509799230,22cyclictest0-21swapper/619:45:206
301509799230,1cyclictest0-21swapper/623:50:186
3015095992320,3cyclictest0-21swapper/523:05:195
301509599230,23cyclictest0-21swapper/523:40:115
301509599230,1cyclictest0-21swapper/519:15:205
301509599230,0cyclictest0-21swapper/521:45:135
301509599230,0cyclictest0-21swapper/521:45:135
3015092992321,1cyclictest3098419-21munin-run21:30:004
3015092992321,1cyclictest3092953-21apt-get21:20:154
301509299230,22cyclictest0-21swapper/422:25:004
301509299230,22cyclictest0-21swapper/421:55:124
301509299230,22cyclictest0-21swapper/420:45:124
301509299230,0cyclictest0-21swapper/420:25:154
3015090992322,1cyclictest3170932-21ntpq23:30:173
301509099230,23cyclictest3089985-21apt-get21:15:123
301509099230,22cyclictest3104751-21apt-get21:40:133
301509099230,22cyclictest0-21swapper/322:35:153
301509099230,22cyclictest0-21swapper/322:00:123
301509099230,22cyclictest0-21swapper/320:50:133
301509099230,22cyclictest0-21swapper/300:00:143
3015086992323,0cyclictest0-21swapper/222:20:182
3015086992320,3cyclictest0-21swapper/222:15:112
301508699230,22cyclictest0-21swapper/222:55:132
301508699230,22cyclictest0-21swapper/222:40:002
301508699230,22cyclictest0-21swapper/221:40:132
301508699230,22cyclictest0-21swapper/221:20:212
301508699230,22cyclictest0-21swapper/220:30:192
301508699230,22cyclictest0-21swapper/220:10:132
301508699230,22cyclictest0-21swapper/219:30:032
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional