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2024-11-23 - 16:46

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #f, slot #4

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.

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
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackfslot4s.osadl.org (updated Sat Nov 23, 2024 12:44:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1392021220,2chrt13919-21sed11:02:330
487421130,2chrt4873-21/usr/sbin/munin09:47:110
184321110,2chrt1842-21ldconfig09:41:570
2359421100,2chrt23593-21grep08:20:520
3146821090,3chrt31459-21ps08:35:410
303621080,2chrt3031-21ps10:42:540
464621030,2chrt4647-21modprobe08:46:130
299052980,2chrt29906-21sh08:31:510
60072940,2sleep06009-21if_err_eth107:45:440
302332910,2sleep030234-21aten2.4_rfpower07:30:250
285012850,2sleep028502-21sh12:27:340
111492830,2chrt11131-21ntpq11:57:000
245852770,1sleep024586-21tune2fs12:21:310
39272750,1sleep03930-21sed07:42:000
130802750,2sleep013082-21awk12:01:190
202502700,2sleep020248-21cpu07:10:420
271682660,2sleep027170-21cat10:27:190
130012590,2sleep013040-21cat08:00:070
19573905626,22cyclictest22631-21ssh09:21:430
19573905622,15cyclictest795-21sendmail-msp08:40:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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