You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2023-12-09 - 10:39

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 #b, 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.

Note that this system runs a non-RT kernel.
Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rackbslot7s (updated Sat Dec 09, 2023 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22244275244,692sleep122271-21unin-run00:05:001
2761023970,7sleep30-21swapper/320:55:023
2711223169,289sleep127126-21modprobe00:19:591
5697228928,245sleep15749-21cpuspeed19:45:221
32089228025,243sleep132093-21grep00:35:251
9645227579,133sleep10-21swapper/121:40:291
16353225824,213sleep316442-21tune2fs23:45:273
5449224948,185sleep15493-21latency_hist19:45:011
26447224726,201sleep126523-21latency20:50:331
11053223835,109sleep111184-21unixbench_multi20:00:411
14866221412,181sleep114931-21idleruntime23:40:281
3483221211,186sleep13580-21cat23:05:021
26420220427,117sleep126492-21latency_hist22:35:011
11570220412,40sleep10-21swapper/123:30:191
2963522038,140sleep129742-21timerandwakeup00:26:001
1660321978,151sleep116751-21latency_hist20:20:031
733521877,141sleep17346-21fschecks_count19:50:271
733521877,141sleep17346-21fschecks_count19:50:271
28332217726,114sleep128379-21fschecks_count22:40:271
28332217726,114sleep128379-21fschecks_count22:40:271
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional