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2024-04-20 - 14:57

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 Apr 20, 2024 12:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2222321520,2sleep022225-21ls11:45:270
2271921220,4chrt22720-21/usr/sbin/munin07:35:140
2476421150,4sleep024762-21ntp_states09:50:230
223321000,3sleep02306-21latency_hist10:30:010
91562900,2sleep09155-21load08:50:190
273652900,3sleep027361-21ntp_states10:00:250
71192880,4sleep07120-21sshd10:47:550
17182870,2sleep01717-21swap08:20:260
309612850,3sleep031020-21ntpq12:20:190
255252840,2sleep025527-21grep12:00:020
300382740,2sleep030037-21/usr/sbin/munin12:15:320
1518427219,32sleep015228-21grep07:05:220
190972670,2sleep019098-21ntpq07:20:240
164922630,2sleep016493-21ntpq07:10:250
16090996310,19cyclictest11679-21ntp_states11:05:230
16090996217,16cyclictest17078-21threads11:25:280
16090996211,18cyclictest5996-21sshd08:37:560
16090996133,16cyclictest4803-21munin-run10:40:010
16090996011,18cyclictest2723-21memory08:25:200
1609099599,17cyclictest12848-21/usr/sbin/munin09:05:140
1609099599,14cyclictest7498-21/usr/sbin/munin10:50:190
16090995911,14cyclictest23003-21/usr/sbin/munin11:50:190
16090995910,17cyclictest15152-21grep11:20:000
1609099589,17cyclictest12667-21/usr/sbin/munin11:10:170
1609099588,22cyclictest50162chrt10:40:120
1609099588,17cyclictest27216-21/usr/sbin/munin07:55:240
1609099587,19cyclictest20435-21/usr/sbin/munin11:40:140
1609099587,16cyclictest20173-21/usr/sbin/munin07:25:150
16090995833,14cyclictest26612-21chrt09:57:330
16090995830,17cyclictest18750-21chrt11:32:570
16090995811,15cyclictest8792-21/usr/sbin/munin10:55:290
1609099579,16cyclictest11562-21/usr/sbin/munin09:00:290
1609099579,15cyclictest32048-21/usr/sbin/munin12:25:320
16090995734,14cyclictest17022-21/usr/sbin/munin09:20:200
16090995725,21cyclictest22214-21ntpq09:40:250
16090995712,16cyclictest16614-21munin-run09:20:010
16090995710,18cyclictest21787-21sendmail09:40:010
16090995710,14cyclictest28826-21ntp_states08:00:260
1609099569,16cyclictest29355-21date12:15:010
1609099569,13cyclictest19128-21/usr/sbin/munin11:35:290
1609099568,17cyclictest25615-21/usr/sbin/munin12:00:400
16090995634,14cyclictest21570-21/usr/sbin/munin07:30:200
16090995633,14cyclictest32573-21/usr/sbin/munin08:15:160
16090995633,14cyclictest31253-21/usr/sbin/munin08:10:170
16090995631,16cyclictest32524-21/usr/sbin/munin10:20:240
16090995630,16cyclictest10146-21/usr/sbin/munin11:00:090
16090995628,14cyclictest7688-21egrep08:45:090
16090995611,15cyclictest324-21munin-node12:35:110
16090995610,17cyclictest871-21/usr/sbin/munin12:30:140
159802563,8sleep00-21swapper11:21:200
1609099558,17cyclictest32102-21idleruntime-cro10:20:010
1609099558,17cyclictest23269-21forks09:45:150
1609099558,15cyclictest14141-21/usr/sbin/munin09:10:220
1609099557,15cyclictest10255-21/usr/sbin/munin08:55:170
16090995533,15cyclictest4147-21/usr/sbin/munin08:30:270
16090995532,15cyclictest18555-21/usr/sbin/munin09:25:290
16090995530,16cyclictest6467-21df08:40:130
16090995530,14cyclictest27105-21munin-run07:55:010
16090995529,16cyclictest28951-21/usr/sbin/munin10:05:310
16090995525,17cyclictest29825-21seq10:10:160
1609099548,19cyclictest25281-21df07:45:110
1609099548,19cyclictest2434-21idleruntime10:30:170
1609099548,18cyclictest24528-21/usr/sbin/munin07:40:420
16090995431,15cyclictest30237-21/usr/sbin/munin08:05:270
1609099538,16cyclictest27034-21irqstats12:05:190
16090995330,15cyclictest17619-21irqstats07:15:160
1609099528,14cyclictest19319-21/usr/sbin/munin09:30:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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