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2024-11-23 - 17:27

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #4, slot #6

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: 50 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 rack4slot6s.osadl.org (updated Sat Nov 23, 2024 12:44:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2626822530,2sleep026269-21ls09:50:000
2129022410,2sleep021291-21date07:25:010
1632321300,3chrt16321-21grep11:15:270
178102960,3sleep017878-21sendmail_mailqu07:10:250
110512960,2sleep011054-21sort08:50:210
287702920,2sleep028775-21modprobe10:00:000
204392920,2sleep020442-21sort09:25:290
96962910,4sleep09766-21fgrep10:50:280
261682890,2sleep026167-21/usr/sbin/munin11:55:310
302352880,2sleep030270-21sendmail08:00:000
281712880,3sleep028217-21egrep12:05:120
35262820,2sleep03524-21fw_packets12:35:160
303992827,61sleep030449-21df08:00:120
44132780,3sleep04473-21grep10:30:230
1647827620,32sleep016479-21ntp_states07:05:270
256412740,2sleep025640-21/usr/sbin/munin07:40:260
245712736,54sleep024569-21ntp_states11:50:220
17384996510,18cyclictest15304-21sshd09:05:300
17384996426,26cyclictest23247-21/usr/sbin/munin07:30:310
43332620,2sleep04335-21latency_hist08:25:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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