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2026-08-24 - 16:05

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 all highest latencies:
System rack4slot6s.osadl.org (updated Mon Aug 24, 2026 12:44:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3175722350,2sleep031754-21cat09:00:180
157621570,4chrt1574-21df11:15:130
2127321330,2sleep021272-21pluginstate12:30:240
1518421290,3sleep015183-21timerwakeupswit10:00:290
694121230,4chrt6940-21/usr/sbin/munin09:30:130
786621220,3chrt7863-21awk11:40:000
1849521160,4chrt18494-21sed12:20:150
733521020,4sleep07348-21ntp_states07:25:210
298121020,4sleep02985-21/usr/sbin/munin11:20:160
2422021010,4sleep024245-21users10:35:280
1057921008,12sleep010621-21df11:50:130
94892937,13sleep09504-21munin-run07:35:010
278542937,72sleep027864-21cat08:45:170
52702860,4sleep05287-21awk11:30:000
201002846,10sleep020098-21ntp_states10:20:230
160292830,4sleep016048-21/usr/sbin/munin12:10:250
30692815,64sleep03109-21if_eth009:15:150
52392770,4sleep05240-21sshd09:23:090
8072720,2sleep0865-21tr09:05:250
206126818,27sleep02078-21/usr/sbin/munin07:05:160
3072996430,23cyclictest25366-21/usr/sbin/munin08:35:200
3072996111,16cyclictest28338-21sshd10:52:100
307299609,17cyclictest26246-21/usr/sbin/munin10:45:200
307299598,18cyclictest17385-21/usr/sbin/munin08:05:280
307299597,19cyclictest13022-21chrt12:00:000
3072995934,15cyclictest12413-21/usr/sbin/munin07:45:190
3072995910,18cyclictest9920-21ntpq07:35:220
3072995910,17cyclictest2009-21/usr/sbin/munin09:10:230
3072995910,16cyclictest5891-21ntp_states09:25:240
307299589,16cyclictest14710-21wc07:55:010
307299588,22cyclictest174942chrt10:10:220
307299588,17cyclictest22552-21/usr/sbin/munin08:25:290
307299588,16cyclictest31465-21sendmail-msp09:00:000
3072995833,17cyclictest16412-21/usr/sbin/munin08:00:240
3072995832,16cyclictest11985-21latency_hist09:50:020
3072995828,21cyclictest10073-21runrttasks11:47:010
3072995818,12cyclictest0-21swapper07:10:250
3072995813,16cyclictest13223-21df_inode12:00:150
3072995810,15cyclictest15923-21/usr/sbin/munin10:05:150
307299579,20cyclictest13468-21/usr/sbin/munin09:55:170
307299579,16cyclictest24353-21awk08:30:280
307299579,15cyclictest19615-21/usr/sbin/munin12:25:280
307299578,16cyclictest21128-21munin-run08:20:010
307299577,16cyclictest8159-21/usr/sbin/munin09:35:180
3072995734,14cyclictest18671-21/usr/sbin/munin08:10:110
3072995732,17cyclictest9831-21/usr/sbin/munin09:40:250
3072995728,18cyclictest8145-21/usr/sbin/munin11:40:170
3072995710,15cyclictest32696-21/usr/sbin/munin11:10:300
307299569,17cyclictest288-21snmpd10:25:080
307299569,15cyclictest12631-21runrttasks09:50:290
307299569,14cyclictest31701-21ntp_states11:05:220
307299569,14cyclictest26569-21seq08:40:160
307299568,15cyclictest28811-21/usr/sbin/munin10:55:150
307299567,15cyclictest10930-21/usr/sbin/munin07:40:160
3072995634,14cyclictest22358-21/usr/sbin/munin12:35:170
3072995632,15cyclictest4924-21/usr/sbin/munin07:15:240
3072995632,15cyclictest17071-21/usr/sbin/munin12:15:130
3072995631,16cyclictest25017-21/usr/sbin/munin10:40:130
3072995630,16cyclictest30206-21/usr/sbin/munin11:00:150
3072995611,14cyclictest14973-21memory07:55:180
307299558,14cyclictest28997-21/usr/sbin/munin08:50:300
307299557,15cyclictest22479-21/usr/sbin/munin10:30:160
307299548,15cyclictest5781-21/usr/sbin/munin07:20:280
307299548,15cyclictest19687-21sendmail-msp10:20:010
307299548,15cyclictest14453-21grep12:05:120
307299547,14cyclictest21246-21date08:20:020
3072995230,15cyclictest5392-21runrttasks11:30:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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