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2025-01-22 - 13:19

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 here to display the system's profile data or here to proceed to next system.
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 Wed Jan 22, 2025 00:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1117322580,2sleep011174-21sort23:35:020
216622510,2sleep02167-21/usr/sbin/munin22:55:130
3037422260,3sleep030375-21expr22:35:250
3092721360,4chrt30925-21ls20:20:300
348521290,4chrt3484-21idleruntime23:00:140
2394121160,3sleep023958-21memory00:30:140
2411021030,2sleep024112-21missed_timers19:55:200
1532021010,2sleep015380-21cat21:30:230
164952990,4sleep016538-21/usr/sbin/munin19:25:250
121852916,12sleep012275-21latency_hist19:10:020
8642895,10sleep0944-21cut20:30:300
242242890,3sleep024260-21netstat22:10:140
175422890,4sleep017596-21interrupts21:40:160
68492770,3sleep06851-21switchtime20:55:250
177722705,54sleep017773-21ntp_states19:30:260
1220499679,23cyclictest14425-21sshd19:17:210
211722635,7sleep00-21swapper00:16:210
12204996135,16cyclictest12148-21/usr/sbin/munin21:15:300
12204995934,16cyclictest10312-21/usr/sbin/munin21:10:160
1220499588,17cyclictest12446-21irqstats19:10:170
12204995835,15cyclictest19361-21/usr/sbin/munin19:35:310
12204995820,14cyclictest12956-21chrt23:40:240
12204995812,19cyclictest7276-21users23:15:300
12204995810,18cyclictest25512-21systemctl00:35:270
12204995810,16cyclictest5394-21/usr/sbin/munin23:10:210
12204995810,16cyclictest31325-21chrt22:40:110
12204995810,15cyclictest20124-21/usr/sbin/munin19:40:140
12204995810,15cyclictest19460-21ntp_states00:10:170
1220499579,18cyclictest3093-21/usr/sbin/munin20:40:310
1220499579,16cyclictest2183-21find20:35:260
1220499579,12cyclictest4951-21sshd23:07:210
1220499578,15cyclictest20402-21chrt21:53:210
1220499577,17cyclictest29072-21chrt22:30:220
12204995734,14cyclictest22560-21/usr/sbin/munin22:00:270
12204995733,15cyclictest21851-21/usr/sbin/munin00:20:140
12204995722,11cyclictest0-21swapper21:21:190
12204995710,18cyclictest19104-21latency_hist00:10:020
12204995710,17cyclictest21923-21sendmail-msp22:00:000
12204995710,15cyclictest22922-21ntp_states19:50:260
1220499569,15cyclictest11276-21/usr/sbin/munin23:35:270
1220499568,20cyclictest14932-21sshd23:50:210
1220499568,16cyclictest8002-21egrep23:20:090
1220499568,14cyclictest18354-21munin-run00:05:000
12204995633,14cyclictest26905-21/usr/sbin/munin22:20:210
12204995618,12cyclictest17336-21sendmail21:40:010
12204995612,15cyclictest21628-21ntp_states19:45:220
12204995611,17cyclictest15920-21df23:55:110
12204995610,13cyclictest29074-21/usr/sbin/munin20:15:280
1220499559,19cyclictest8516-21runrttasks21:02:210
1220499559,16cyclictest32224-21cat20:25:280
1220499559,15cyclictest25266-21snmpd23:47:560
1220499558,16cyclictest5079-21/usr/sbin/munin20:50:210
1220499558,15cyclictest15154-21ntpq19:20:190
12204995533,13cyclictest23785-21runrttasks22:08:580
12204995531,17cyclictest14285-21sshd21:26:210
12204995531,15cyclictest9066-21/usr/sbin/munin21:05:160
12204995512,16cyclictest27989-21memory20:10:220
12204995511,18cyclictest25518-21ntp_states20:00:240
12204995511,16cyclictest19117-21sshd21:48:220
12204995510,15cyclictest26509-21/usr/sbin/munin20:05:310
1220499548,15cyclictest25327-21/usr/sbin/munin22:15:310
1220499547,15cyclictest9475-21seq23:26:470
1220499547,15cyclictest4751-21sshd20:48:210
1220499539,15cyclictest108-21systemd-journal22:45:210
1220499537,15cyclictest991-21/usr/sbin/munin22:50:140
12204995330,14cyclictest23743-21latency_hist00:30:020
12204995027,15cyclictest28016-21runrttasks22:25:550
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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