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2025-11-08 - 23:26

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, slot #2

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 100 highest latencies:
System rack7slot2s.osadl.org (updated Sat Nov 08, 2025 12:48:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
343734899326186,101cyclictest0-21swapper/010:40:530
343734899310170,104cyclictest0-21swapper/008:31:140
343734899310170,104cyclictest0-21swapper/008:31:140
343734899306103,153cyclictest9250irq/88-eth%d08:15:310
343734899306103,153cyclictest9250irq/88-eth%d08:15:310
343734899304146,111cyclictest3445694-21kworker/u10:0-rpciod08:11:400
343734899304146,111cyclictest3445694-21kworker/u10:0-rpciod08:11:400
343734899295182,75cyclictest0-21swapper/012:01:290
343734899295182,75cyclictest0-21swapper/012:01:290
343734899292135,107cyclictest0-21swapper/007:30:570
343734899292135,107cyclictest0-21swapper/007:30:570
343734899292120,121cyclictest0-21swapper/012:26:230
343734899291173,80cyclictest0-21swapper/010:51:380
343734899291173,80cyclictest0-21swapper/010:51:380
343734899288133,103cyclictest0-21swapper/009:26:270
343734899288133,103cyclictest0-21swapper/009:26:270
343734899284112,135cyclictest0-21swapper/007:21:330
343734899281123,104cyclictest3487486-21diskstats11:30:380
343734899281123,104cyclictest3487486-21diskstats11:30:380
343734899280153,83cyclictest0-21swapper/010:01:050
343734899278152,110cyclictest3461660-21kworker/u9:1+rpciod09:40:260
343734899278152,110cyclictest3461660-21kworker/u9:1+rpciod09:40:260
343734899276125,103cyclictest0-21swapper/010:36:480
343734899274157,104cyclictest3446906-21kernelversion08:05:480
343734899274157,104cyclictest3446906-21kernelversion08:05:480
343734899271161,97cyclictest0-21swapper/007:41:500
343734899271154,104cyclictest0-21swapper/011:26:060
343734899271154,104cyclictest0-21swapper/011:26:050
343734899270149,106cyclictest3441726-21/usr/sbin/munin07:35:420
343734899269142,109cyclictest0-21swapper/012:20:330
343734899269138,79cyclictest0-21swapper/011:55:500
343734899268143,75cyclictest0-21swapper/010:46:350
343734899268143,75cyclictest0-21swapper/010:46:350
343734899268112,107cyclictest0-21swapper/011:46:470
343734899267114,102cyclictest0-21swapper/009:52:020
343734899267114,102cyclictest0-21swapper/009:52:020
343734899267105,120cyclictest0-21swapper/010:30:350
343734899267105,120cyclictest0-21swapper/010:30:350
343734899265107,108cyclictest3497885-21latency_hist12:20:070
34373489926476,85cyclictest3454466-21ntpq08:51:020
34373489926476,85cyclictest3454466-21ntpq08:51:020
343734899264115,100cyclictest0-21swapper/010:27:040
343734899264115,100cyclictest0-21swapper/010:27:040
343734899263142,107cyclictest3467539-21ntpq09:56:200
343734899263142,107cyclictest3467539-21ntpq09:56:200
343734899262148,99cyclictest3495953-21/usr/sbin/munin12:11:570
343734899262102,114cyclictest0-21swapper/012:07:030
343734899259143,101cyclictest3453645-21ntpq08:46:060
343734899259143,101cyclictest3453645-21ntpq08:46:050
343734899259130,115cyclictest3450413-21ntp_states08:26:450
343734899259130,115cyclictest3450413-21ntp_states08:26:440
343734899259108,100cyclictest0-21swapper/011:42:050
343734899258156,88cyclictest3486040-21kworker/u10:7-rpciod11:35:460
34373489925776,89cyclictest0-21swapper/011:21:570
343734899257144,72cyclictest171rcu_preempt11:20:050
343734899256143,99cyclictest3462992-21/usr/sbin/munin09:37:030
343734899256143,99cyclictest3462992-21/usr/sbin/munin09:37:030
343734899255151,91cyclictest3458786-21df09:15:350
343734899255151,91cyclictest3458786-21df09:15:350
343734899255140,101cyclictest200-21systemd-resolve11:12:490
343734899254129,109cyclictest0-21swapper/009:30:400
343734899254129,109cyclictest0-21swapper/009:30:390
343734899253140,95cyclictest0-21swapper/012:30:230
343734899252152,84cyclictest0-21swapper/009:20:470
343734899252152,84cyclictest0-21swapper/009:20:470
343734899251197,39cyclictest717-21lldpd07:25:240
343734899251136,99cyclictest3451543-21kworker/u10:1-rpciod09:15:060
343734899251136,99cyclictest3451543-21kworker/u10:1-rpciod09:15:060
343734899250141,91cyclictest0-21swapper/008:40:320
343734899249142,91cyclictest0-21swapper/011:01:520
343734899249139,94cyclictest0-21swapper/009:05:480
343734899249139,94cyclictest0-21swapper/009:05:480
343734899248141,94cyclictest3472587-21dpkg10:20:140
343734899248141,94cyclictest3472587-21dpkg10:20:140
343734899248127,105cyclictest0-21swapper/011:52:070
343734899248112,96cyclictest3444858-21munin-run07:55:020
343734899248112,96cyclictest3444858-21munin-run07:55:020
343734899247146,91cyclictest3449879-21users08:22:020
343734899247146,91cyclictest3449879-21users08:22:020
343735199246202,28cyclictest0-21swapper/312:01:293
343735199246202,28cyclictest0-21swapper/312:01:293
34373489924695,100cyclictest0-21swapper/011:10:060
343734899246138,94cyclictest0-21swapper/008:00:050
343734899244138,90cyclictest3426772-21kworker/u10:1-rpciod07:20:060
343734899243170,59cyclictest0-21swapper/009:00:010
343734899243121,104cyclictest3456583-21latency_hist09:05:040
343734899241147,79cyclictest0-21swapper/010:55:590
343734899241132,95cyclictest3452320-21timerwakeupswit08:37:080
343734899241131,97cyclictest3471743-21rm10:16:060
343734899241131,97cyclictest3471743-21rm10:16:060
343734899240115,109cyclictest0-21swapper/007:50:090
343734899240115,109cyclictest0-21swapper/007:50:090
343734899239136,89cyclictest3465508-21ntp_states09:46:460
343734899239136,89cyclictest3465508-21ntp_states09:46:460
343734899239119,103cyclictest0-21swapper/007:10:470
343735199237194,23cyclictest0-21swapper/310:51:383
343735199237194,23cyclictest0-21swapper/310:51:383
343734899235120,98cyclictest9150irq/87-eth%d10:06:190
343734899235120,98cyclictest9150irq/87-eth%d10:06:180
343734899234133,87cyclictest3501339-21rm12:35:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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