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2024-11-23 - 20:52

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 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 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
17384996120,12cyclictest15746-21date11:15:020
17384996111,18cyclictest30998-21tr12:15:210
1738499608,19cyclictest11954-21/usr/sbin/munin11:00:160
17384996037,14cyclictest20742-21/usr/sbin/munin11:35:250
1738499599,15cyclictest2922-21/usr/sbin/munin10:25:290
17384995936,15cyclictest1724-21/usr/sbin/munin10:20:150
17384995935,14cyclictest30317-21/usr/sbin/munin10:05:160
17384995935,14cyclictest21460-21/usr/sbin/munin09:30:260
17384995932,16cyclictest31802-21/usr/sbin/munin10:10:270
17384995911,19cyclictest29747-21ntp_states12:10:250
17384995911,16cyclictest4667-21/usr/sbin/munin08:25:190
1738499589,16cyclictest8267-21/usr/sbin/munin08:40:140
1738499587,25cyclictest19313-21memory11:30:150
17384995812,34cyclictest317-21/usr/sbin/munin10:15:170
17384995810,17cyclictest30189-21cat10:05:020
17384995810,16cyclictest6797-21/usr/sbin/munin10:40:140
1738499579,15cyclictest28048-21munin-plugin-st12:05:000
1738499578,17cyclictest13239-21/usr/sbin/munin11:05:270
1738499578,15cyclictest21718-21/usr/sbin/munin11:40:260
1738499577,19cyclictest25205-21latency_hist07:40:020
1738499577,17cyclictest1796-21/usr/sbin/munin08:15:150
1738499577,15cyclictest28097-21ntp_states07:50:220
1738499576,18cyclictest32570-21grep12:20:290
17384995710,16cyclictest18819-21df07:15:120
1738499568,22cyclictest8075-21/usr/sbin/munin10:45:240
1738499568,19cyclictest17589-21chrt09:15:230
1738499568,17cyclictest22744-21/usr/sbin/munin09:35:190
1738499568,16cyclictest876-21/usr/sbin/munin12:25:200
1738499567,17cyclictest10640-21/usr/sbin/munin10:55:240
17384995634,14cyclictest18839-21/usr/sbin/munin09:20:190
17384995632,15cyclictest6769-21runrttasks08:34:320
17384995631,16cyclictest24285-21/usr/sbin/munin09:40:290
17384995631,15cyclictest26532-21/usr/sbin/munin09:50:230
1738499559,15cyclictest6957-21/usr/sbin/munin08:35:270
1738499559,15cyclictest23061-21df_inode11:45:140
1738499559,15cyclictest16158-21irqstats09:10:210
1738499558,16cyclictest512-21/usr/sbin/munin08:10:260
1738499558,13cyclictest12113-21/usr/sbin/munin08:55:300
17384995511,15cyclictest21649-21ntp_states07:25:210
17384995510,16cyclictest6679-21sendmail-msp10:40:010
1738499549,17cyclictest17725-21sshd11:20:290
1738499547,16cyclictest2213-21df12:30:150
17384995433,13cyclictest9616-21/usr/sbin/munin08:45:130
17384995430,15cyclictest13514-21/usr/sbin/munin09:00:150
17384995426,17cyclictest26814-21ntp_states07:45:230
1738499538,15cyclictest31761-21/usr/sbin/munin08:05:140
17384995110,15cyclictest18728-21seq11:27:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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