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2026-07-05 - 17:15

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 100 highest latencies:
System rack4slot6s.osadl.org (updated Sun Jul 05, 2026 12:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1867123190,3sleep018670-21wc09:35:270
126822510,4sleep01271-21latency_hist08:30:010
242421310,2sleep02423-21wc10:40:020
2838621210,3chrt28387-21egrep12:20:100
2473121170,2sleep024730-21ntp_offset12:05:200
714921150,4sleep06537-21/usr/sbin/munin08:50:300
3272421140,2sleep032725-21grep10:30:240
2824721120,3chrt28248-21date12:20:020
2355521100,4sleep023559-21df_inode07:50:110
1864021010,3sleep018644-21ntp_states07:30:240
285532990,4sleep028489-21/usr/sbin/munin10:15:130
144612990,2sleep014460-21pluginstate11:25:240
36562940,3sleep03668-21idleruntime-cro10:45:010
235772930,2sleep023643-21/usr/sbin/munin12:00:260
251432900,2sleep025140-21ps07:55:230
316852875,9sleep031751-21/usr/sbin/munin08:20:260
43832754,59sleep04385-21users10:45:300
1188327520,32sleep011889-21df07:05:120
275022660,2sleep027503-21ntpq10:10:220
235202633,5sleep00-21swapper09:55:200
13038996326,13cyclictest10816-21wc11:10:280
13038996318,18cyclictest32148-21date12:35:020
13038996020,14cyclictest15603-21/usr/sbin/munin09:25:170
13038996018,14cyclictest22417-21/usr/sbin/munin07:45:190
1303899599,17cyclictest20638-21ls09:45:000
1303899599,16cyclictest9131-21/usr/sbin/munin09:00:280
13038995912,18cyclictest19747-21if_eth007:35:170
1303899589,17cyclictest5075-21/usr/sbin/munin10:50:210
1303899589,17cyclictest20943-21/usr/sbin/munin07:40:220
1303899588,17cyclictest29950-21/usr/sbin/munin08:15:270
1303899587,18cyclictest27385-21/usr/sbin/munin08:05:130
13038995826,14cyclictest3876-21latency_hist08:40:020
13038995810,18cyclictest23029-21awk12:00:010
13038995810,18cyclictest21040-21/usr/sbin/munin09:45:190
1303899579,17cyclictest12476-21sshd11:18:170
1303899579,15cyclictest14763-21wc07:15:240
1303899578,17cyclictest10425-21egrep09:05:120
1303899576,18cyclictest24635-21/usr/sbin/munin10:00:190
13038995734,14cyclictest19500-21/usr/sbin/munin11:45:190
13038995733,16cyclictest1780-21/usr/sbin/munin08:30:260
13038995711,17cyclictest9100-21sshd11:05:170
13038995710,16cyclictest20650-21/usr/sbin/munin11:50:140
13038995710,15cyclictest18523-21grep11:40:270
1303899569,16cyclictest288-21snmpd09:54:380
1303899569,14cyclictest29955-21irqstats10:20:170
1303899567,16cyclictest15413-21/usr/sbin/munin11:30:170
1303899567,15cyclictest7961-21irqstats08:55:160
1303899559,17cyclictest4164-21sshd08:40:180
1303899559,15cyclictest32186-21/usr/sbin/munin12:35:290
1303899559,15cyclictest13137-21cpu07:10:100
1303899558,16cyclictest13136-21ntp_states11:20:220
1303899558,15cyclictest26037-21ntp_states12:10:250
1303899558,14cyclictest25926-21/usr/sbin/munin10:05:110
1303899557,17cyclictest17020-21/usr/sbin/munin07:25:330
13038995531,15cyclictest31695-21/usr/sbin/munin10:25:330
13038995531,14cyclictest29955-21/usr/sbin/munin12:25:250
13038995530,16cyclictest16138-21/usr/sbin/munin07:20:250
13038995520,14cyclictest11757-21cpu09:10:110
1303899549,12cyclictest298902sleep008:15:010
1303899548,17cyclictest7862-21memory11:00:200
1303899548,15cyclictest26100-21/usr/sbin/munin08:00:140
1303899547,15cyclictest16700-21/usr/sbin/munin11:35:280
1303899546,12cyclictest13295-21ntp_states09:15:240
13038995425,21cyclictest14808-21switchtime09:20:250
13038995416,14cyclictest16964-21runrttasks09:30:150
1303899537,14cyclictest6549-21memory10:55:180
13038995310,16cyclictest5258-21grep08:45:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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