You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-04-03 - 15:40

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 #0, slot #3

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 rack0slot3s.osadl.org (updated Thu Apr 03, 2025 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34797832267261,4sleep40-21swapper/419:08:084
34797032246209,13sleep20-21swapper/219:07:032
34797822239220,12sleep30-21swapper/319:08:083
34798972236217,12sleep70-21swapper/719:09:417
34796752236216,13sleep10-21swapper/119:06:381
34796132235216,12sleep00-21swapper/019:05:480
34796522234214,13sleep50-21swapper/519:06:165
34776042234214,13sleep60-21swapper/619:05:146
3480230993433,1cyclictest1426-21snmpd19:57:424
3480230993412,1cyclictest0-21swapper/421:22:424
3480239993218,14cyclictest1426-21snmpd21:36:517
3480234993229,2cyclictest1426-21snmpd21:28:275
3480223993231,1cyclictest1426-21snmpd21:52:271
3480219993127,3cyclictest1426-21snmpd22:02:430
3480230993030,0cyclictest3591153-21kworker/4:0+events00:03:564
3480230993030,0cyclictest3497270-21kworker/4:1+events21:48:234
3480230993017,13cyclictest3578966-21kworker/4:2+events23:01:044
3480228993030,0cyclictest0-21swapper/319:38:413
3480230992929,0cyclictest3497270-21kworker/4:1+events22:25:174
3480230992929,0cyclictest3497270-21kworker/4:1+events22:13:284
3480230992929,0cyclictest3441700-21kworker/4:2+events19:37:444
3480230992828,0cyclictest3591153-21kworker/4:0+events23:23:284
3480228992828,0cyclictest0-21swapper/320:06:353
3480228992827,1cyclictest0-21swapper/320:51:023
3480219992827,1cyclictest0-21swapper/023:44:450
3480230992727,0cyclictest3627369-21kworker/4:1+events00:26:164
3480230992727,0cyclictest3600419-21kworker/4:2+events23:29:264
3480230992727,0cyclictest3578966-21kworker/4:2+events22:38:364
3480230992727,0cyclictest3497270-21kworker/4:1+events22:31:104
3480230992727,0cyclictest3497270-21kworker/4:1+events21:39:374
3480230992727,0cyclictest3441700-21kworker/4:2+events19:28:414
3480223992726,1cyclictest0-21swapper/120:45:011
3480230992626,0cyclictest3600419-21kworker/4:2+events23:50:264
3480230992626,0cyclictest3516124-21kworker/4:0+events20:28:074
3480230992626,0cyclictest3497270-21kworker/4:1+events20:53:014
3480230992626,0cyclictest3497270-21kworker/4:1+events20:09:094
3480230992626,0cyclictest3161362-21kworker/4:0+events19:17:534
3480230992621,4cyclictest1426-21snmpd19:22:464
3480236992525,0cyclictest0-21swapper/621:08:556
3480236992525,0cyclictest0-21swapper/620:23:376
3480236992525,0cyclictest0-21swapper/619:23:536
3480234992523,2cyclictest1426-21snmpd22:22:525
3480219992523,2cyclictest0-21swapper/021:05:430
3480239992424,0cyclictest0-21swapper/721:25:457
348023999240,23cyclictest0-21swapper/700:34:047
3480234992423,1cyclictest0-21swapper/521:52:265
348023099240,23cyclictest0-21swapper/419:50:444
348022899240,23cyclictest0-21swapper/321:55:353
3480225992421,2cyclictest1426-21snmpd20:06:172
348022599240,23cyclictest0-21swapper/200:23:222
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional