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2024-06-17 - 21:58

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 100 highest latencies:
System rack4slot6s.osadl.org (updated Mon Jun 17, 2024 12:44:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
695622520,2sleep06960-21modprobe12:20:000
24178214421,31sleep024196-21munin-run07:10:020
1369321380,4chrt13695-21sort10:40:020
1360821360,3chrt13609-21systemd-cgroups08:33:440
49302980,3sleep04962-21/usr/sbin/munin12:10:300
48232920,4sleep04770-21/usr/sbin/munin08:00:110
222812896,12sleep022282-21users09:05:430
86652880,3sleep08679-21awk10:20:200
85002880,4sleep08538-21sort08:15:000
282672886,11sleep028291-21grep11:35:300
61932830,4sleep06210-21missed_timers10:10:260
175822834,8sleep017583-21sshd08:49:300
74182770,4sleep07443-21grep10:15:200
155062725,56sleep015507-21ntp_states08:40:260
305782640,2sleep030579-21df11:45:130
24222996430,23cyclictest20699-21/usr/sbin/munin09:00:260
256852620,5sleep025683-21fw_packets07:15:160
24222996127,12cyclictest25851-21ntpq09:20:220
24222996010,17cyclictest6061-21/usr/sbin/munin08:05:110
2422299599,14cyclictest25359-21/usr/sbin/munin11:25:310
24222995935,14cyclictest30803-21/usr/sbin/munin09:40:170
2422299587,15cyclictest3515-21ntp_states12:05:220
24222995834,15cyclictest2357-21/usr/sbin/munin09:55:190
24222995816,13cyclictest32129-21sshd11:50:280
24222995811,15cyclictest14045-21ntp_states10:40:260
24222995810,17cyclictest8736-21if_err_eth008:15:170
187592580,2sleep018762-21sh11:00:010
2422299579,15cyclictest29483-21/usr/sbin/munin07:30:400
2422299579,15cyclictest10954-21/usr/sbin/munin12:35:160
2422299578,16cyclictest12159-21seq10:33:490
2422299578,15cyclictest900-21/usr/sbin/munin07:45:240
2422299578,15cyclictest19067-21/usr/sbin/munin08:55:140
2422299569,16cyclictest28200-21/usr/sbin/munin07:25:150
2422299569,15cyclictest24078-21/usr/sbin/munin11:20:300
2422299569,14cyclictest9876-21/usr/sbin/munin10:25:400
2422299568,18cyclictest1932-21/usr/sbin/munin12:00:320
2422299568,17cyclictest28120-21/usr/sbin/munin09:30:220
2422299568,16cyclictest9676-21/usr/sbin/munin12:30:270
2422299567,17cyclictest26649-21/usr/sbin/munin11:30:170
24222995633,15cyclictest32657-21/usr/sbin/munin07:40:360
24222995611,17cyclictest3767-21ntp_states07:55:320
24222995611,16cyclictest23115-21seq11:15:300
2422299558,17cyclictest20198-21/usr/sbin/munin11:05:300
2422299558,15cyclictest823-21/usr/sbin/munin09:50:140
2422299558,14cyclictest24239-21/usr/sbin/munin09:15:240
2422299557,16cyclictest26914-21/usr/sbin/munin07:20:220
2422299557,15cyclictest9961-21sshd08:20:040
2422299556,23cyclictest16253-21latency_hist10:50:020
24222995534,13cyclictest24808-21/usr/sbin/munin07:10:320
24222995530,15cyclictest26898-21/usr/sbin/munin09:25:130
24222995514,13cyclictest7377-21ntpq12:20:240
24222995512,17cyclictest30490-21sshd09:39:290
24222995510,17cyclictest108-21systemd-journal12:25:020
51542543,8sleep00-21swapper10:05:300
2422299548,16cyclictest21777-21ntp_states11:10:260
2422299547,18cyclictest16308-21/usr/sbin/munin10:50:310
2422299547,16cyclictest14846-21seq08:38:190
24222995428,14cyclictest17861-21/usr/sbin/munin08:50:150
24222995410,17cyclictest1565-21chrt11:58:140
238772543,5sleep00-21swapper09:13:090
2422299538,18cyclictest2456-21ntpq07:50:270
2422299538,16cyclictest16707-21rs:main0
2422299538,14cyclictest3412-21/usr/sbin/munin10:00:230
24222995331,15cyclictest32258-21/usr/sbin/munin09:45:220
24222995330,15cyclictest31302-21/usr/sbin/munin07:35:370
24222995310,16cyclictest11544-21/usr/sbin/munin08:25:220
2422299528,18cyclictest19197-21/usr/sbin/munin11:00:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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