You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-03-17 - 08:44

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 #7, 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 50 highest latencies:
System rack7slot7s.osadl.org (updated Mon Mar 17, 2025 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
947621090,0sleep30-21swapper/321:43:323
3882210275,9sleep30-21swapper/319:09:313
3751210289,9sleep10-21swapper/119:07:471
387128575,5sleep20-21swapper/219:09:222
379228270,8sleep00-21swapper/019:08:180
238172710,0sleep20-21swapper/223:56:102
4008992323,0cyclictest0-21swapper/023:38:360
401399197,5cyclictest224-21systemd-journal22:50:002
401399191,17cyclictest0-21swapper/220:00:142
40982180,0sleep30-21swapper/323:16:483
401099180,17cyclictest0-21swapper/100:10:071
4013991715,1cyclictest32-21ksoftirqd/222:05:282
401399170,1cyclictest0-21swapper/222:36:252
401399170,17cyclictest24879-21kworker/2:122:25:082
400899177,9cyclictest11322-21munin-run22:10:000
4008991714,2cyclictest13-21ksoftirqd/021:18:220
4010991615,1cyclictest0-21swapper/122:21:291
4008991615,1cyclictest0-21swapper/023:18:400
4017991513,1cyclictest0-21swapper/322:41:403
4017991513,1cyclictest0-21swapper/321:30:303
4017991511,2cyclictest1826-21sed20:15:173
401399159,2cyclictest7920-21grep22:55:182
4013991515,0cyclictest0-21swapper/200:15:092
4013991514,1cyclictest14123-21kworker/2:023:25:082
4013991514,1cyclictest12868-21kworker/2:021:53:092
401399151,1cyclictest27694-21diskmemload21:46:432
400899153,6cyclictest0-21swapper/021:58:340
168622150,1sleep20-21swapper/221:25:092
401799144,9cyclictest9399-21sensors23:20:243
4017991410,3cyclictest13019-21taskset22:59:293
401799140,11cyclictest0-21swapper/322:09:093
401399146,8cyclictest25109-21kworker/2:000:29:472
401399143,9cyclictest0-21swapper/223:10:092
4013991412,2cyclictest37850irq/131-snd_hda23:37:092
4013991411,2cyclictest15887-21grep23:00:262
4013991410,3cyclictest20079-21cat19:40:262
4013991410,3cyclictest13002-21tr20:39:592
401399140,14cyclictest0-21swapper/222:15:412
401399140,0cyclictest0-21swapper/223:49:362
401099141,12cyclictest6594-21wc00:10:001
4010991410,3cyclictest14357-21grep20:40:191
401099140,13cyclictest8387-21grep19:15:251
401099140,12cyclictest9223-21grep20:30:191
401099140,12cyclictest23434-21tr21:00:221
4008991411,2cyclictest23957-21wc21:30:230
4008991410,3cyclictest16699-21awk21:50:010
400899140,13cyclictest26065-21cron20:00:000
401799139,3cyclictest20323-21taskset23:54:363
401799139,2cyclictest13604-21sed22:10:223
4017991310,2cyclictest4913-21grep19:10:173
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional