You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-04-18 - 09:16

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 #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 rack0slot7s.osadl.org (updated Thu Apr 18, 2024 00:43:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1940627212071,20sleep00-21swapper/019:07:270
1940470210961,21sleep30-21swapper/319:05:293
1940566210275,20sleep20-21swapper/219:06:402
1940494210173,20sleep10-21swapper/119:05:471
1940959993410,24cyclictest0-21swapper/200:01:592
194095999250,25cyclictest0-21swapper/219:26:512
1940953992019,1cyclictest0-21swapper/020:11:560
229699190,2rtkit-daemon2295-21rtkit-daemon19:32:221
194096399180,15cyclictest0-21swapper/323:08:523
1940959991814,4cyclictest0-21swapper/223:34:132
1940957991813,4cyclictest1026-21snmpd23:08:521
194095999171,15cyclictest2007854-21ntpq21:55:172
194095999170,3cyclictest0-21swapper/223:44:112
1940957991715,2cyclictest1026-21snmpd20:43:051
1940957991715,1cyclictest1026-21snmpd19:57:461
1940953991714,2cyclictest1026-21snmpd00:28:510
194095399171,15cyclictest1990550-21users21:10:210
194095399170,17cyclictest0-21swapper/022:57:570
194095399170,17cyclictest0-21swapper/022:52:070
194095399170,17cyclictest0-21swapper/022:52:060
194096399166,9cyclictest0-21swapper/322:41:273
194096399160,15cyclictest0-21swapper/323:37:293
194096399160,15cyclictest0-21swapper/319:26:453
194095999168,8cyclictest0-21swapper/221:00:142
1940959991614,1cyclictest1026-21snmpd22:42:032
1940959991613,2cyclictest1026-21snmpd19:48:392
1940957991614,1cyclictest1026-21snmpd21:45:191
1940957991613,2cyclictest1026-21snmpd19:26:451
194095799160,7cyclictest0-21swapper/123:43:381
194095399167,9cyclictest0-21swapper/020:09:050
194095399160,1cyclictest0-21swapper/019:12:120
194095399160,16cyclictest0-21swapper/023:24:220
194095399160,16cyclictest0-21swapper/021:31:290
194095399160,16cyclictest0-21swapper/000:18:200
112099160,1ntpd0-21swapper/300:00:163
194096399155,9cyclictest0-21swapper/321:08:003
1940963991513,1cyclictest0-21swapper/322:35:163
194096399150,15cyclictest0-21swapper/300:33:123
1940959991514,1cyclictest0-21swapper/219:20:192
194095999150,7cyclictest0-21swapper/223:58:332
194095999150,7cyclictest0-21swapper/200:06:292
194095999150,6cyclictest0-21swapper/223:11:592
194095999150,6cyclictest0-21swapper/222:08:512
194095999150,6cyclictest0-21swapper/221:30:322
194095999150,6cyclictest0-21swapper/220:51:272
194095999150,15cyclictest0-21swapper/223:51:472
194095999150,15cyclictest0-21swapper/220:35:202
194095999150,15cyclictest0-21swapper/220:22:262
194095999150,15cyclictest0-21swapper/220:01:162
1940957991512,2cyclictest1026-21snmpd23:37:291
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional