You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-03-03 - 17:11

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 #2

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 20 highest latencies:
System rack0slot2s.osadl.org (updated Sun Mar 03, 2024 12:44:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
117523599444444,0cyclictest1223377-21kworker/9:0+events08:47:549
117520499444442,2cyclictest1138-21snmpd11:33:190
117520499443440,3cyclictest1138-21snmpd12:19:120
117522899438437,1cyclictest1138-21snmpd10:59:007
117523399437434,3cyclictest1138-21snmpd08:29:428
117522899437436,1cyclictest1138-21snmpd08:17:347
117523599436435,1cyclictest1223476-21turbostat08:44:579
117523599433432,1cyclictest1204569-21kworker/9:0+pm08:30:119
117520899432431,1cyclictest1138-21snmpd08:35:111
117523599430427,3cyclictest1334891-21turbostat12:14:569
117523599429428,1cyclictest1236741-21turbostat09:09:559
117523399429428,1cyclictest1138-21snmpd08:14:348
117520499429427,2cyclictest1138-21snmpd08:16:280
117523599428428,0cyclictest1313481-21kworker/9:1+pm11:33:409
117523399428425,3cyclictest1138-21snmpd10:19:118
117523599424422,2cyclictest1247344-21turbostat09:29:559
117523599423422,1cyclictest1338851-21kworker/9:0+pm12:20:119
117523599422422,0cyclictest1300071-21kworker/9:0+events11:06:379
117523599422421,1cyclictest1249170-21kworker/9:1+events09:41:579
117523599421421,0cyclictest1284945-21kworker/9:0+events10:43:369
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional