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2023-12-03 - 01:27

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 Dec 02, 2023 12:44:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
521922500,3sleep05218-21cat09:30:010
1047822080,2sleep010480-21sh07:45:000
2649621580,3sleep026495-21proc_pri08:45:340
1101221260,3chrt11010-21grep12:05:010
582121150,3sleep05823-21cat11:40:380
1749321110,3sleep017494-21latency_hist10:20:010
2405921050,4sleep023558-21/usr/sbin/munin08:35:380
1226421040,3sleep012276-21latency_hist12:10:000
44021020,4sleep0487-21proc_pri09:10:320
285562960,3sleep028566-21cron08:55:000
239112960,3sleep023958-21sendmail_mailtr10:45:340
103122940,3sleep010346-21date09:50:010
195362910,3sleep019562-21munin-run08:20:010
109312910,4sleep010628-21/usr/sbin/munin07:45:390
140682830,3sleep014097-21awk10:05:330
136312834,9sleep013669-21sed10:05:010
303192825,8sleep030317-21ntp_states09:00:340
33727719,32sleep0340-21df_inode07:05:210
185762746,54sleep018595-21ntp_states12:35:350
201342650,2sleep020136-21latency_hist10:30:010
156402630,4sleep015643-21wc12:25:020
1474996223,12cyclictest16705-21in:imuxsock08:15:000
147499619,19cyclictest6543-21/usr/sbin/munin11:45:360
1474996010,18cyclictest20002-21ntp_states08:20:300
147499599,16cyclictest27543-21/usr/sbin/munin11:00:290
1474995918,14cyclictest25052-21ntp_kernel_err10:50:280
1474995910,17cyclictest18244-21latency_hist12:35:010
1474995910,16cyclictest31302-21df11:15:210
147499588,16cyclictest24866-21/usr/sbin/munin08:40:370
1474995834,15cyclictest1568-21/usr/sbin/munin09:15:230
1474995832,16cyclictest8112-21/usr/sbin/munin09:40:230
1474995811,16cyclictest303-21lldpd12:29:010
147499579,19cyclictest5524-21sshd07:25:190
147499577,20cyclictest6594-21/usr/sbin/munin09:35:290
1474995733,15cyclictest17805-21irqstats10:20:270
1474995730,17cyclictest14389-21sendmail08:00:000
1474995718,12cyclictest0-21swapper10:10:230
1474995710,14cyclictest27229-21sendmail11:00:000
147499569,16cyclictest31405-21/usr/sbin/munin09:05:230
147499569,16cyclictest2805-21chrt09:20:210
147499569,16cyclictest2672-21/usr/sbin/munin11:30:280
147499569,16cyclictest22228-21/usr/sbin/munin10:40:320
147499569,16cyclictest108-21systemd-journal09:58:300
147499569,15cyclictest14534-21/usr/sbin/munin08:00:370
147499569,15cyclictest108-21systemd-journal08:30:000
147499569,14cyclictest2869-21/usr/sbin/munin07:15:350
147499568,18cyclictest5108-21systemctl11:40:000
147499568,18cyclictest12423-21/usr/sbin/munin12:10:320
1474995634,15cyclictest22668-21/usr/sbin/munin08:30:330
1474995631,15cyclictest11021-21/usr/sbin/munin09:50:420
1474995615,13cyclictest29974-21/usr/sbin/munin11:10:330
1474995611,16cyclictest1299-21wc11:25:020
147499558,15cyclictest6354-21sshd09:34:190
147499558,14cyclictest8115-21fw_packets07:35:230
1474995532,15cyclictest9360-21runrttasks11:57:260
1474995532,14cyclictest2178-21/usr/sbin/munin07:10:400
1474995519,12cyclictest13807-21seq12:16:140
1474995510,13cyclictest6942-21memory07:30:270
147499549,17cyclictest20499-21/usr/sbin/munin10:30:350
147499547,14cyclictest1482-21/usr/sbin/munin11:25:280
1474995432,13cyclictest8177-21/usr/sbin/munin11:50:370
1474995431,15cyclictest28789-21/usr/sbin/munin08:55:230
1474995415,13cyclictest4189-21/usr/sbin/munin07:20:310
1474995410,18cyclictest22085-21munin-run10:40:010
147499539,17cyclictest11945-21/usr/sbin/munin07:50:270
147499537,13cyclictest15827-21/usr/sbin/munin08:05:340
1474995311,16cyclictest28835-21irqstats11:05:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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