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2024-07-27 - 14:18

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 Sat Jul 27, 2024 12:44:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1045622520,3sleep010459-21wc10:00:260
267821510,3chrt2064-21/usr/sbin/munin11:35:310
2979821050,4sleep029819-21missed_timers09:10:200
8772990,4sleep0788-21/usr/sbin/munin11:30:160
197892990,3sleep019790-21sshd10:36:320
36362960,3sleep03663-21ntp_states11:40:210
302182930,3sleep030268-21sort07:05:260
99162900,5sleep09944-21wc10:00:010
324552780,2sleep032457-21ls11:25:270
62182710,3sleep06222-21cron07:40:010
30981996319,14cyclictest28143-21/usr/sbin/munin11:10:130
30981996119,14cyclictest23494-21grep10:50:320
30981996110,18cyclictest32177-21wc09:20:020
30981996110,17cyclictest18726-21sendmail-msp12:40:000
3098199608,18cyclictest9387-21sshd12:02:330
30981996034,16cyclictest16552-21/usr/sbin/munin10:25:140
30981996013,16cyclictest14192-21df_inode08:10:130
30981996012,20cyclictest27090-21ntp_states11:05:230
30981996011,16cyclictest28376-21df_inode09:05:140
30981996011,15cyclictest8245-21users07:45:320
30981995935,15cyclictest26190-21/usr/sbin/munin08:55:280
30981995934,16cyclictest18262-21/usr/sbin/munin10:30:280
3098199589,16cyclictest14877-21sshd10:18:320
3098199588,17cyclictest12848-21/usr/sbin/munin08:05:250
30981995833,16cyclictest5087-21/usr/sbin/munin09:40:170
30981995811,19cyclictest31847-21munin-run11:25:000
30981995811,15cyclictest7138-21cat11:55:010
30981995810,19cyclictest6794-21sshd09:45:320
161382580,2sleep016225-21cut12:30:020
3098199579,17cyclictest7460-21/usr/sbin/munin09:50:160
3098199579,17cyclictest2496-21/usr/sbin/munin07:25:100
3098199579,16cyclictest8930-21/usr/sbin/munin07:50:200
3098199578,16cyclictest11334-21/usr/sbin/munin10:05:260
3098199578,15cyclictest12086-21grep08:00:320
3098199577,18cyclictest12375-21/usr/sbin/munin12:15:280
3098199577,15cyclictest3590-21/usr/sbin/munin09:35:280
30981995734,15cyclictest27433-21/usr/sbin/munin09:00:290
30981995731,17cyclictest19347-21df08:30:120
30981995726,23cyclictest10212-21/usr/sbin/munin12:05:260
30981995712,13cyclictest20652-21ntp_states10:40:220
30981995710,18cyclictest23162-21/usr/sbin/munin08:45:170
30981995710,18cyclictest1159-21if_eth009:25:160
30981995710,16cyclictest24073-21cron10:55:020
30981995710,16cyclictest11492-21/usr/sbin/munin12:10:260
30981995710,15cyclictest7216-21/usr/sbin/munin11:55:180
30981995710,15cyclictest30224-21sshd11:17:320
3098199569,14cyclictest16252-21/usr/sbin/munin12:30:280
3098199568,19cyclictest344-21seq09:20:320
3098199568,16cyclictest32360-21/usr/sbin/munin07:15:200
3098199568,16cyclictest2422-21latency_hist07:25:010
30981995635,14cyclictest22312-21runrttasks10:45:570
30981995632,15cyclictest17024-21/usr/sbin/munin08:20:210
30981995619,13cyclictest2417-21if_err_eth009:30:150
30981995610,15cyclictest25573-21df_inode11:00:120
3098199559,14cyclictest6370-21egrep07:40:100
3098199559,14cyclictest4970-21/usr/sbin/munin11:45:230
3098199557,16cyclictest20863-21ntp_states08:35:250
3098199557,15cyclictest4145-21/usr/sbin/munin07:30:290
3098199557,15cyclictest10204-21/usr/sbin/munin07:55:180
30981995532,15cyclictest15295-21/usr/sbin/munin10:20:140
30981995531,16cyclictest22202-21/usr/sbin/munin08:40:270
30981995510,17cyclictest18632-21runrttasks08:25:350
30981995510,17cyclictest12917-21ntp_states10:10:260
3098199547,17cyclictest16610-21sendmail-msp08:20:010
3098199547,14cyclictest13688-21/usr/sbin/munin12:20:180
30981995430,15cyclictest32025-21runrttasks07:13:190
30981995310,17cyclictest24494-21runrttasks08:50:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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