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2025-07-14 - 22:59

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #f, slot #4

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: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rackfslot4s.osadl.org (updated Mon Jul 14, 2025 12:44:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2093021330,3chrt20931-21latency_hist07:40:030
404621310,2sleep04047-21ssh12:08:130
2774421290,2chrt27745-21sh09:56:060
841221240,4chrt8366-21apt-get07:15:260
1817921220,4chrt18180-21smartctl08:37:190
1944021210,2chrt18691-21/usr/sbin/munin09:41:070
2003421180,2chrt20033-21ssh11:38:430
1953321160,3chrt19531-21sshd10:39:350
2765821120,2chrt27653-21ps11:52:090
108521090,3chrt1087-21sed08:05:030
186782930,2sleep018680-21sed12:35:050
95332870,2sleep09537-21wc12:18:050
215032830,2sleep021505-21cut11:41:050
117652810,2sleep011766-21tune2fs08:25:360
122162770,1sleep012217-21latency_hist11:25:040
5705906733,24cyclictest32025-21sleep11:01:160
316412670,2sleep031642-21awk10:02:160
5705906633,22cyclictest16395-21rm11:31:440
5705906534,22cyclictest21223-21rm10:41:510
5705906533,23cyclictest1252-21irqstats10:06:080
5705906431,14cyclictest26571-21munin-run08:55:010
5705906430,23cyclictest5936-21ssh09:16:420
5705906430,14cyclictest6188-21df10:15:390
5705906430,14cyclictest23790-21ntpq10:46:270
5705906339,15cyclictest1249-21apt-get11:05:210
5705906338,15cyclictest8709-21apt-get10:20:380
5705906332,22cyclictest26133-21grep10:51:020
5705906331,23cyclictest14815-21ntpq08:30:530
5705906331,23cyclictest1306-21chrt08:05:250
5705906331,22cyclictest7697-21ssh09:20:390
5705906331,22cyclictest29648-21ps11:56:030
5705906331,13cyclictest14455-21ntp_states09:31:560
5705906329,24cyclictest23034-21ps09:47:150
5705906329,23cyclictest19105-21ssh12:35:400
5705906235,16cyclictest14071-21ps07:25:460
5705906233,18cyclictest24676-21diskstats09:50:500
5705906231,22cyclictest11483-21ssh09:26:350
5705906230,22cyclictest16149-21telnet09:35:370
5705906230,21cyclictest5680-21munin-run10:15:020
5705906230,12cyclictest1795-21ssh09:10:040
5705906131,12cyclictest22119-21sleep08:45:380
5705906130,22cyclictest29357-21aten2.4_rfpower09:00:250
5705906130,22cyclictest2268-21df_inode09:10:460
5705906130,21cyclictest12741-21ssh10:26:330
5705906129,22cyclictest6087-21sshd12:11:470
5705906129,22cyclictest24487-21ntpq11:46:190
5705906129,22cyclictest15772-21ntpq10:32:090
5705906127,13cyclictest17308-21python307:31:240
131832610,2sleep013182-21wc12:25:030
5705906034,16cyclictest3742-21apt-get08:10:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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