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2025-11-28 - 18:50

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 Fri Nov 28, 2025 12:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3882236995822,14cyclictest3905702-21/usr/sbin/munin08:15:153
3882223995145,4cyclictest3946164-21kworker/u8:0+events_unbound10:15:200
3882236995040,6cyclictest3927072-21grep09:15:273
3882227994838,6cyclictest3981157-21runrttasks11:55:021
3882227994819,9cyclictest3952320-21sed10:30:211
3882236994735,8cyclictest3986806-21fschecks_time12:10:153
3882236994719,9cyclictest3990271-21basename12:20:173
3882236994719,9cyclictest3955586-21df10:40:133
3882236994719,10cyclictest3969545-21sed11:20:173
3882236994719,10cyclictest3969545-21sed11:20:173
3882227994736,6cyclictest299-21systemd-logind08:30:011
3882236994633,9cyclictest3900475-21apt-get08:00:133
3882236994618,9cyclictest3962735-21cat11:00:213
3882227994618,9cyclictest3975074-21timerandwakeup11:35:251
3882227994617,12cyclictest3954340-21switchtime10:35:221
3882236994525,16cyclictest3896208-21head07:45:263
3882236994517,25cyclictest3932608-21seq09:34:463
3882236994513,12cyclictest3900405-21cat08:00:023
3882232994536,5cyclictest3975705-21grep11:40:002
3882227994517,9cyclictest3912272-21cat08:35:001
3882236994432,9cyclictest3975257-21/usr/sbin/munin11:35:273
3882236994430,10cyclictest3886684-21/usr/sbin/munin07:20:193
3882236994429,11cyclictest3936641-21/usr/sbin/munin09:45:193
3882236994417,11cyclictest3934088-21chrt09:37:023
3882236994416,10cyclictest3960814-21perl10:55:153
3882236994415,14cyclictest0-21swapper/309:00:463
3882236994330,10cyclictest3947801-21/usr/sbin/munin10:15:253
3882236994318,9cyclictest3978905-21sed11:45:273
3882236994317,10cyclictest0-21swapper/310:39:103
3882236994316,9cyclictest3938571-21ntp_states09:50:233
3882236994316,9cyclictest3938571-21ntp_states09:50:233
3882236994315,9cyclictest3909564-21ntp_states08:25:223
3882232994337,4cyclictest3961897-21kworker/u8:2+events_unbound11:25:342
3882236994231,7cyclictest3924343-21munin-node09:10:093
3882236994230,9cyclictest3888448-21/usr/sbin/munin07:25:193
3882236994230,7cyclictest3919593-21/usr/sbin/munin08:55:183
3882236994229,9cyclictest3995793-21/usr/sbin/munin12:35:253
3882236994228,9cyclictest3912395-21/usr/sbin/munin08:35:093
3882236994227,11cyclictest3918124-21/usr/sbin/munin08:50:233
388223299421,7cyclictest0-21swapper/210:00:122
3882227994221,12cyclictest0-21swapper/112:00:111
3882236994134,4cyclictest3988293-21apt-get12:15:113
3882236994134,4cyclictest3988293-21apt-get12:15:113
3882236994132,5cyclictest0-21swapper/307:45:003
3882236994130,8cyclictest3951228-21/usr/sbin/munin10:25:273
3882236994130,7cyclictest3943941-21/usr/sbin/munin10:05:223
3882236994128,10cyclictest3952620-21/usr/sbin/munin10:30:253
3882236994128,10cyclictest3928075-21/usr/sbin/munin09:20:173
3882236994128,10cyclictest3915195-21/usr/sbin/munin08:40:253
3882236994127,9cyclictest3889925-21/usr/sbin/munin07:30:143
3882236994127,10cyclictest3910833-21/usr/sbin/munin08:30:153
3882232994134,4cyclictest3982748-21sendmail12:00:002
3882227994125,11cyclictest3945141-21/usr/sbin/munin10:10:151
3882227994125,10cyclictest0-21swapper/109:50:121
3882227994125,10cyclictest0-21swapper/109:50:121
3882227994120,17cyclictest3883372-21tail07:10:281
3882236994030,7cyclictest3907419-21/usr/sbin/munin08:20:173
3882236994029,8cyclictest3941621-21/usr/sbin/munin10:00:113
3882236994028,8cyclictest3929471-21munin-node09:25:113
3882236994027,10cyclictest3982981-21/usr/sbin/munin12:00:123
3882236994027,10cyclictest3981984-21/usr/sbin/munin11:55:223
3882236994026,11cyclictest3968477-21/usr/sbin/munin11:15:253
3882236994026,11cyclictest3945434-21/usr/sbin/munin10:10:203
3882236994023,14cyclictest3993870-21/usr/sbin/munin12:30:233
3882236994023,14cyclictest3993870-21/usr/sbin/munin12:30:223
3882232994023,6cyclictest3984235-21kworker/u8:2+events_unbound12:18:332
3882232994023,6cyclictest3984235-21kworker/u8:2+events_unbound12:18:322
3882227994029,7cyclictest3921461-21/usr/sbin/munin09:00:211
3882227994028,9cyclictest3891719-21munin-node07:35:121
3882227994027,9cyclictest3906621-21grep08:15:261
3882227994027,10cyclictest3922641-21munin-node09:05:131
3882227994025,11cyclictest3979324-21cron11:50:001
3882227994018,6cyclictest3949010-21ntp_states10:20:181
3882223994033,5cyclictest3961897-21kworker/u8:2+events_unbound11:05:320
3882236993932,4cyclictest3972527-21apt-get11:30:133
3882236993930,6cyclictest3964313-21/usr/sbin/munin11:05:173
3882236993929,7cyclictest3948443-21/usr/sbin/munin10:20:233
3882236993929,7cyclictest3923195-21/usr/sbin/munin09:05:223
3882236993928,7cyclictest3958967-21/usr/sbin/munin10:50:143
3882236993927,9cyclictest3977426-21sshd11:42:383
3882236993927,9cyclictest3904136-21/usr/sbin/munin08:10:143
3882236993927,7cyclictest3902230-21/usr/sbin/munin08:05:133
3882236993926,9cyclictest3984895-21/usr/sbin/munin12:05:183
3882236993926,11cyclictest3971768-21/usr/sbin/munin11:25:263
3882236993924,11cyclictest3934687-21/usr/sbin/munin09:40:133
3882236993923,11cyclictest3882639-21/usr/sbin/munin07:10:173
3882236993921,14cyclictest3940573-21/usr/sbin/munin09:55:253
3882236993921,13cyclictest3958644-21cron10:50:013
3882232993932,4cyclictest3941170-21munin-plugin-st10:00:002
3882232993929,7cyclictest311ktimers/209:10:092
3882232993924,6cyclictest3889343-21kworker/u8:2+events_unbound07:38:372
3882232993917,5cyclictest131rcu_preempt12:25:002
388223299390,12cyclictest32-21ksoftirqd/209:30:122
3882227993926,8cyclictest3969388-21/usr/sbin/munin11:20:161
3882227993926,8cyclictest3969388-21/usr/sbin/munin11:20:151
3882227993926,10cyclictest3992485-21/usr/sbin/munin12:25:211
3882223993932,5cyclictest3947936-21kworker/u8:2+events_unbound10:20:200
3882223993925,4cyclictest3899959-21kworker/u8:2+events_unbound08:00:000
3882236993830,4cyclictest3979561-21apt-get11:50:113
3882236993828,7cyclictest3966314-21/usr/sbin/munin11:10:253
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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