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2024-07-16 - 14:04

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 all highest latencies:
System rack4slot6s.osadl.org (updated Tue Jul 16, 2024 00:44:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2095921350,4chrt20958-21ntpq00:25:220
1172921350,3chrt11728-21/usr/sbin/munin21:45:140
687921310,3chrt6880-21/usr/sbin/munin19:20:270
3854212818,88sleep03862-21ls19:10:010
2510921270,4chrt25111-21swap20:30:310
932221120,4sleep09053-21/usr/sbin/munin23:40:220
1805021050,4sleep018082-21latency_hist20:05:010
199922990,3sleep020031-21grep22:15:350
324032950,3sleep032404-21ls23:05:020
184812940,4sleep018476-21ntp_states20:05:270
326062925,10sleep032473-21/usr/sbin/munin23:05:190
76742910,4sleep07677-21wc23:35:020
182452850,3sleep018260-21memory00:15:190
212262836,65sleep020770-21/usr/sbin/munin22:20:360
168342825,65sleep016837-21df00:10:090
3881996324,14cyclictest3758-21munin-run23:20:010
388199619,18cyclictest18170-21/usr/sbin/munin22:10:150
3881996135,16cyclictest6494-21/usr/sbin/munin21:25:180
3881996034,16cyclictest27843-21users20:40:430
388199599,17cyclictest21045-21chrt20:15:270
388199599,16cyclictest10512-21if_eth021:40:180
388199598,18cyclictest13016-21/usr/sbin/munin19:45:220
3881995934,16cyclictest10676-21/usr/sbin/munin23:45:310
3881995932,17cyclictest7981-21ntp_states21:30:270
3881995911,16cyclictest4130-21/usr/sbin/munin21:15:320
3881995910,17cyclictest31674-21users20:55:380
3881995910,15cyclictest3978-21/usr/sbin/munin19:10:350
3881995910,15cyclictest27258-21/usr/sbin/munin22:45:150
388199589,18cyclictest24665-21/usr/sbin/munin22:35:180
388199589,16cyclictest29825-21/usr/sbin/munin22:55:170
388199589,16cyclictest22065-21/usr/sbin/munin20:20:270
388199589,15cyclictest9208-21/usr/sbin/munin19:30:140
388199588,17cyclictest16887-21/usr/sbin/munin22:05:130
388199588,17cyclictest12943-21/usr/sbin/munin21:50:250
3881995834,15cyclictest4050-21/usr/sbin/munin23:20:200
3881995834,15cyclictest26500-21/usr/sbin/munin22:40:310
3881995833,15cyclictest9683-21/usr/sbin/munin21:35:340
3881995817,14cyclictest5528-21mailstats21:20:280
388199579,15cyclictest15584-21/usr/sbin/munin19:55:260
388199578,16cyclictest14799-21/usr/sbin/munin21:55:330
388199578,14cyclictest19383-21/usr/sbin/munin00:20:360
388199577,18cyclictest23235-21/usr/sbin/munin00:35:130
388199577,17cyclictest12986-21/usr/sbin/munin23:55:160
388199577,17cyclictest11620-21/usr/sbin/munin23:50:150
3881995733,15cyclictest8439-21/usr/sbin/munin19:25:360
388199569,18cyclictest8936-21basename23:40:010
388199569,16cyclictest6440-21munin-run19:20:010
388199568,15cyclictest15502-21munin-node00:05:110
388199568,14cyclictest28502-21/usr/sbin/munin20:45:230
388199567,18cyclictest11730-21/usr/sbin/munin19:40:340
3881995633,15cyclictest15600-21/usr/sbin/munin22:00:140
3881995632,15cyclictest10616-21/usr/sbin/munin19:35:200
3881995632,14cyclictest23498-21/usr/sbin/munin22:30:180
3881995617,14cyclictest26073-21latency20:35:210
3881995611,31cyclictest32672-21ntp_states21:00:260
3881995610,17cyclictest29755-21grep22:55:010
3881995610,16cyclictest14296-21/usr/sbin/munin19:50:200
388199559,14cyclictest324-21munin-node21:10:130
388199559,14cyclictest23646-21ntp_states20:25:260
388199558,18cyclictest22676-21modprobe22:25:380
388199558,16cyclictest19609-21/usr/sbin/munin20:10:180
3881995530,15cyclictest1357-21/usr/sbin/munin23:10:140
3881995510,17cyclictest1271-21df_inode21:05:130
3881995510,16cyclictest22098-21irqstats00:30:180
388199549,15cyclictest29842-21chrt20:50:140
388199549,15cyclictest14207-21/usr/sbin/munin00:00:360
388199547,16cyclictest5344-21seq23:25:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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