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2025-11-23 - 00:54

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, slot #5

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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  Phytec
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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackbslot5s.osadl.org (updated Sat Nov 22, 2025 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
402032995847,7cyclictest433047-21grep08:35:412
402023995142,6cyclictest442381-21grep09:05:160
402032994735,8cyclictest488727-21sendmail11:20:002
402023994432,8cyclictest447141-21sendmail09:20:000
402036994331,8cyclictest0-21swapper/312:40:013
402032994330,9cyclictest311ktimers/208:20:142
402023994331,6cyclictest0-21swapper/011:00:010
402036994229,8cyclictest0-21swapper/309:00:003
402023994231,7cyclictest463770-21unixbench_singl10:05:270
402036994132,6cyclictest508749-21unixbench_singl12:15:283
402023994133,4cyclictest435198-21munin-plugin-st08:45:010
402023994133,4cyclictest435198-21munin-plugin-st08:45:010
402032994033,3cyclictest407927-21apt-get07:25:132
402032994031,6cyclictest0-21swapper/209:35:002
402032994031,6cyclictest0-21swapper/209:34:592
402036993929,6cyclictest403655-21auditctl07:15:003
402036993928,7cyclictest503636-21grep12:00:253
402036993926,8cyclictest507473-21apt12:15:013
402032993932,4cyclictest428594-21apt-get08:25:142
402023993927,5cyclictest0-21swapper/010:20:000
402036993824,9cyclictest489295-21/usr/sbin/munin11:20:193
402036993812,11cyclictest405409-21/usr/sbin/munin07:15:263
402036993810,13cyclictest0-21swapper/309:32:233
402036993810,13cyclictest0-21swapper/309:32:233
402032993832,3cyclictest413044-21apt-get07:40:152
402032993831,4cyclictest488954-21apt-get11:20:122
402032993831,4cyclictest445656-21apt-get09:15:162
402032993828,7cyclictest454198-21apt-get09:40:142
402032993828,7cyclictest454198-21apt-get09:40:142
402032993824,10cyclictest491099-21/usr/sbin/munin11:25:192
402032993817,12cyclictest0-21swapper/212:35:132
402027993830,4cyclictest0-21swapper/108:55:001
402036993730,4cyclictest423025-21auditctl08:10:003
402036993726,7cyclictest457655-21/usr/sbin/munin09:50:163
402036993725,8cyclictest409621-21/usr/sbin/munin07:30:133
402036993723,10cyclictest430967-21/usr/sbin/munin08:30:233
402036993723,10cyclictest391ktimers/308:40:143
402036993723,10cyclictest391ktimers/308:40:143
402032993731,3cyclictest442245-21apt-get09:05:122
402032993730,4cyclictest497489-21apt-get11:45:172
402032993724,10cyclictest425989-21/usr/sbin/munin08:15:252
402032993723,11cyclictest494782-21/usr/sbin/munin11:35:242
402032993723,11cyclictest493032-21/usr/sbin/munin11:30:242
402032993723,11cyclictest459356-21/usr/sbin/munin09:55:162
402036993630,3cyclictest432001-21apt-get08:35:153
402036993629,4cyclictest426433-21latency_hist08:20:013
402036993624,9cyclictest493483-21sshd11:31:003
402036993624,7cyclictest488823-21cat11:20:003
402036993622,10cyclictest391ktimers/310:15:143
40203299366,22cyclictest0-21swapper/211:13:032
402032993630,3cyclictest507709-21apt-get12:15:142
402032993630,3cyclictest457601-21apt-get09:50:152
402032993629,4cyclictest476589-21apt-get10:45:152
402032993625,8cyclictest411429-21df07:35:162
402032993624,9cyclictest509557-21/usr/sbin/munin12:20:162
402032993624,7cyclictest0-21swapper/211:05:012
402032993623,10cyclictest449835-21/usr/sbin/munin09:25:312
402032993623,10cyclictest449835-21/usr/sbin/munin09:25:312
402032993623,10cyclictest439261-21/usr/sbin/munin08:55:192
402032993623,10cyclictest431204-21/usr/sbin/munin08:30:262
402032993623,10cyclictest410909-21cron07:33:012
402032993622,11cyclictest478532-21/usr/sbin/munin10:50:172
402032993622,11cyclictest462836-21df_inode10:05:162
402032993622,11cyclictest402633-21/usr/sbin/munin07:10:212
402032993621,11cyclictest405371-21/usr/sbin/munin07:15:252
402032993620,10cyclictest471580-21diskstats10:30:172
402032993619,12cyclictest437644-21grep08:50:212
402032993618,14cyclictest500169-21grep11:50:272
402032993618,14cyclictest500169-21grep11:50:262
402027993627,6cyclictest0-21swapper/112:25:011
402027993625,6cyclictest0-21swapper/110:05:261
402023993625,6cyclictest0-21swapper/011:10:250
402036993525,6cyclictest474353-21sshd10:36:433
402036993525,6cyclictest474353-21sshd10:36:433
402036993522,9cyclictest419854-21/usr/sbin/munin08:00:263
402036993522,10cyclictest415418-21/usr/sbin/munin07:45:283
402036993521,11cyclictest441293-21/usr/sbin/munin09:00:253
402032993529,3cyclictest506008-21apt-get12:10:142
402032993525,7cyclictest475455-21ntp_states10:40:232
402032993524,8cyclictest502975-21/usr/sbin/munin12:00:172
402032993524,7cyclictest512834-21apt-get12:30:152
402032993523,9cyclictest505217-21/usr/sbin/munin12:05:252
402032993522,9cyclictest435865-21meminfo08:45:202
402032993522,10cyclictest461584-21ntp_states10:00:222
402032993519,13cyclictest415269-21/usr/sbin/munin07:45:252
402027993526,4cyclictest0-21swapper/107:55:181
402027993525,6cyclictest0-21swapper/111:40:011
402023993529,3cyclictest0-21swapper/012:20:250
402036993427,3cyclictest0-21swapper/308:45:363
402036993426,4cyclictest0-21swapper/311:35:253
402036993425,6cyclictest485082-21sh11:10:003
402036993424,7cyclictest498327-21/usr/sbin/munin11:45:303
402036993423,8cyclictest464872-21/usr/sbin/munin10:10:213
402036993423,8cyclictest453769-21cron09:37:593
402036993423,8cyclictest453769-21cron09:37:593
402036993423,7cyclictest479638-21sshd10:53:433
402036993423,7cyclictest438472-21sshd08:53:413
402036993420,11cyclictest482223-21/usr/sbin/munin11:00:213
402032993428,3cyclictest440545-21apt-get09:00:142
402032993428,3cyclictest416443-21apt-get07:50:162
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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