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2026-04-30 - 08:27

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 Wed Apr 29, 2026 12:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4116308995839,14cyclictest4194197-21latency_hist10:55:013
4116308995839,14cyclictest4194197-21latency_hist10:55:003
411630899510,43cyclictest0-21swapper/308:25:133
4116308994941,4cyclictest4130481-21ls07:49:593
411630899491,37cyclictest645-21runrttasks07:15:113
411630899491,28cyclictest9936-21mailstats11:20:233
4116308994841,4cyclictest36258-21grep12:40:003
4116301994839,5cyclictest15796-21munin-plugin-st11:40:011
4116297994733,11cyclictest121ktimers/009:00:130
4116308994633,10cyclictest4140701-21apt-get08:19:593
4116301994636,6cyclictest4150685-21grep08:45:251
4116308994524,17cyclictest0-21swapper/308:55:163
4116301994533,9cyclictest231ktimers/110:40:121
4116297994538,4cyclictest4178451-21idleruntime-cro10:10:010
4116303994437,4cyclictest8973-21munin-plugin-st11:20:002
4116297994437,4cyclictest4164810-21idleruntime-cro09:30:000
411630899431,36cyclictest4163879-21/usr/sbin/munin09:25:213
411630899430,39cyclictest0-21swapper/311:25:113
4116303994334,6cyclictest4126568-21grep07:35:232
4116301994335,5cyclictest19217-21idleruntime-cro11:50:001
4116297994332,7cyclictest4157500-21grep09:05:250
4116297994329,10cyclictest121ktimers/009:20:130
411630899421,37cyclictest4170263-21/usr/sbin/munin09:45:153
411630899421,36cyclictest4146539-21/usr/sbin/munin08:35:163
411630899421,36cyclictest22981-21diskstats12:00:143
411630899421,34cyclictest487-21sendmail-mta07:50:123
4116303994230,7cyclictest0-21swapper/209:43:092
411630899412,36cyclictest4812-21/usr/sbin/munin11:05:233
411630899411,37cyclictest4191438-21/usr/sbin/munin10:45:223
411630899411,37cyclictest4191438-21/usr/sbin/munin10:45:223
411630899411,37cyclictest30058-21/usr/sbin/munin12:20:193
411630899411,35cyclictest4184119-21/usr/sbin/munin10:25:143
411630899411,35cyclictest4175412-21/usr/sbin/munin10:00:163
411630899411,35cyclictest4168975-21/usr/sbin/munin09:40:203
411630899411,35cyclictest4156954-21meminfo09:05:183
411630899411,35cyclictest4135833-21/usr/sbin/munin08:05:123
411630899411,35cyclictest4125585-21apt-get07:35:103
4116303994129,8cyclictest311ktimers/212:35:112
4116301994130,8cyclictest231ktimers/109:35:121
4116297994133,4cyclictest0-21swapper/010:18:140
411630899406,30cyclictest41342282sleep308:00:153
4116308994033,4cyclictest0-21swapper/310:40:003
411630899402,35cyclictest15537-21sshd11:37:053
411630899401,36cyclictest4189682-21/usr/sbin/munin10:40:203
411630899401,36cyclictest4172829-21/usr/sbin/munin09:50:253
411630899401,34cyclictest4173559-21apt-get09:55:133
411630899401,34cyclictest4160033-21diskstats09:15:153
411630899401,34cyclictest4160033-21diskstats09:15:153
411630899401,34cyclictest4127595-21/usr/sbin/munin07:40:183
411630899401,34cyclictest4116732-21/usr/sbin/munin07:10:163
4116297994026,11cyclictest121ktimers/009:45:130
411630899393,33cyclictest4133547-21sshd07:56:053
411630899391,35cyclictest794-21irqstats10:55:183
411630899391,35cyclictest4140701-21apt-get08:20:053
411630899391,34cyclictest4152591-21cron08:52:013
411630899391,34cyclictest4148826-21/usr/sbin/munin08:40:243
411630899391,34cyclictest4124004-21/usr/sbin/munin07:30:143
411630899391,34cyclictest19429-21sshd11:50:063
411630899391,33cyclictest7589-21/usr/sbin/munin11:15:133
411630899391,33cyclictest5908-21diskstats11:10:143
411630899391,33cyclictest5908-21diskstats11:10:143
411630899391,33cyclictest4176976-21/usr/sbin/munin10:05:113
411630899391,33cyclictest28083-21diskstats12:15:153
411630899391,33cyclictest18338-21/usr/sbin/munin11:45:213
411630899391,33cyclictest16597-21/usr/sbin/munin11:40:203
411630899391,32cyclictest4149689-21apt-get08:45:103
4116303993932,4cyclictest0-21swapper/208:20:002
4116303993929,7cyclictest4179660-21grep10:10:262
4116303993929,7cyclictest4176731-21cron10:05:012
4116301993930,6cyclictest29901-21fschecks_time12:20:171
4116297993931,4cyclictest0-21swapper/007:35:010
411630899382,32cyclictest4122189-21apt-get07:25:143
4116308993818,17cyclictest4180371-21/usr/sbin/munin10:15:173
411630899381,34cyclictest4179518-21/usr/sbin/munin10:10:253
411630899381,34cyclictest4158371-21/usr/sbin/munin09:10:153
411630899381,34cyclictest4144687-21/usr/sbin/munin08:30:153
411630899381,34cyclictest4137643-21/usr/sbin/munin08:10:143
411630899381,34cyclictest24772-21/usr/sbin/munin12:05:163
411630899381,34cyclictest22219-21uptime11:55:263
411630899381,34cyclictest13528-21/usr/sbin/munin11:30:233
411630899381,33cyclictest4183482-21sshd10:24:053
411630899381,33cyclictest4120474-21sshd07:20:053
411630899381,32cyclictest4154927-21diskstats09:00:153
411630899381,32cyclictest33205-21/usr/sbin/munin12:30:153
411630899381,31cyclictest4185815-21df10:30:133
411630899380,33cyclictest4161637-21apt-get09:20:123
4116303993831,4cyclictest0-21swapper/210:55:002
4116303993831,4cyclictest0-21swapper/210:55:002
4116303993829,5cyclictest0-21swapper/209:28:062
4116303993828,7cyclictest0-21swapper/207:10:242
411630899375,28cyclictest4166722-21sshd09:35:053
411630899371,33cyclictest4166110-21/usr/sbin/munin09:30:263
411630899371,33cyclictest31839-21memory12:25:223
411630899371,33cyclictest2285-21df11:00:133
411630899370,32cyclictest26262-21apt-get12:10:123
4116303993730,5cyclictest4112386-21kworker/u8:2+events_unbound07:27:412
4116301993729,4cyclictest0-21swapper/112:00:141
4116301993727,6cyclictest0-21swapper/111:05:011
4116301993726,7cyclictest0-21swapper/108:10:011
4116297993727,6cyclictest0-21swapper/008:25:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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