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2024-04-15 - 18:52

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 376 highest latencies:
System rack4slot6s.osadl.org (updated Mon Apr 15, 2024 12:44:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3158122260,3sleep031583-21switchtime09:00:310
2694121350,3sleep026942-21ls10:50:010
1313721310,3chrt13135-21interrupts07:50:130
1657821250,2sleep016579-21latency_hist10:09:590
625421240,4chrt6255-21awk11:35:100
537721120,3sleep05381-21ntp_states09:25:170
686721090,4sleep06372-21/usr/sbin/munin09:30:230
283922967,13sleep028436-21irqstats10:55:090
209972950,3sleep021022-21users12:30:240
196532910,3sleep019723-21ls12:25:240
325142870,3sleep032565-21processes11:10:240
151828121,35sleep01521-21irqstats07:05:120
221932777,58sleep022197-21irqstats08:25:130
12622720,3sleep01261-21ntp_kernel_pll_11:15:150
43132707,11sleep02584-21cyclictest11:26:130
79272640,2sleep07926-21/usr/sbin/munin07:30:100
2590996128,22cyclictest31494-21/usr/sbin/munin11:05:240
259099609,17cyclictest30629-21snmpd12:14:150
2590996035,16cyclictest5336-21/usr/sbin/munin11:30:220
2590996028,22cyclictest17093-21/usr/sbin/munin12:15:250
2590996014,14cyclictest29820-21df08:55:060
259099598,19cyclictest2480-21/usr/sbin/munin09:15:150
259099589,17cyclictest10046-21/usr/sbin/munin11:50:220
259099588,17cyclictest14120-21/usr/sbin/munin10:00:280
259099587,18cyclictest23329-21/usr/sbin/munin08:30:350
259099587,18cyclictest18167-21/usr/sbin/munin08:10:100
2590995833,15cyclictest2653-21/usr/sbin/munin11:20:190
2590995819,14cyclictest34882chrt07:12:060
2590995811,17cyclictest9024-21ntp_kernel_pll_11:45:150
2590995811,16cyclictest18264-21ntp_states10:15:170
2590995810,15cyclictest16691-21/usr/sbin/munin10:10:130
259099579,17cyclictest324-21munin-node08:40:050
259099578,17cyclictest11647-21/usr/sbin/munin11:55:180
259099578,14cyclictest1491-21ntp_states09:10:200
2590995735,14cyclictest7629-21/usr/sbin/munin11:40:130
2590995735,14cyclictest29675-21/usr/sbin/munin11:00:090
2590995733,16cyclictest9109-21/usr/sbin/munin09:40:120
2590995732,16cyclictest27290-21/usr/sbin/munin08:45:110
2590995731,18cyclictest19628-21/usr/sbin/munin10:20:190
2590995721,12cyclictest279-21sshd07:59:380
2590995718,14cyclictest112282chrt07:41:570
2590995712,17cyclictest25795-21munin-run08:40:000
2590995711,15cyclictest21975-21awk12:35:150
2590995710,15cyclictest17864-21/usr/sbin/munin12:20:230
2590995710,14cyclictest12643-21/usr/sbin/munin12:00:200
259099569,19cyclictest14068-21irqstats12:05:090
259099569,16cyclictest9401-21tr07:35:170
259099568,15cyclictest21862-21/usr/sbin/munin10:30:210
259099568,15cyclictest12807-21/usr/sbin/munin09:55:200
259099567,15cyclictest23946-21seq10:37:020
259099567,14cyclictest15588-21/usr/sbin/munin08:00:280
2590995632,16cyclictest28824-21/usr/sbin/munin08:50:250
2590995616,14cyclictest8830-21idleruntime-cro09:40:000
2590995613,14cyclictest6449-21ls07:25:010
259099558,14cyclictest16884-21/usr/sbin/munin08:05:260
259099557,16cyclictest3957-21/usr/sbin/munin07:15:190
259099557,15cyclictest32446-21awk09:05:090
259099557,15cyclictest10527-21ntp_states09:45:150
259099557,14cyclictest19596-21irqstats08:15:130
2590995530,15cyclictest4320-21/usr/sbin/munin09:20:220
2590995510,16cyclictest11861-21irqstats07:45:130
2590995510,15cyclictest21259-21/usr/sbin/munin08:20:270
259099548,16cyclictest20873-21ntp_states10:25:190
259099548,15cyclictest11524-21/usr/sbin/munin09:50:220
259099547,13cyclictest27015-21/usr/sbin/munin10:50:270
259099539,16cyclictest24502-21df10:40:050
259099538,15cyclictest6611-21df07:25:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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