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2024-07-16 - 15:23

OSADL QA Farm on Real-time of Mainline Linux

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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 
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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.osadl.org (updated Mon Jul 15, 2024 12:43:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29827255356,418sleep329872-21switchtime08:42:523
662025356,497sleep31166-21snmpd07:32:283
6445242726,368sleep31166-21snmpd10:54:353
1445224106,392sleep314462-21unin-run07:56:353
10706238339,214sleep310709-21cron09:26:343
734236517,284sleep3789-21fschecks_time10:36:583
1459123417,298sleep314597-21ntpq09:37:123
4299232340,215sleep34333-21basename07:26:343
4299232340,215sleep34333-21basename07:26:343
2609523140,7sleep00-21swapper/008:32:050
368228316,253sleep31166-21snmpd08:52:293
27176225838,201sleep30-21swapper/310:17:023
786522579,49sleep30-21swapper/309:16:443
26459223737,131sleep30-21swapper/311:57:033
24443223033,135sleep324509-21unixbench_multi10:07:173
12672222644,134sleep312750-21fschecks_time09:31:593
7545222039,138sleep37720-21latency_hist09:16:363
21890221031,161sleep321997-21latency_hist10:01:363
4009220114,169sleep34093-21latency10:47:043
4009220114,169sleep34093-21latency10:47:043
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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