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2024-04-20 - 16:06

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #9, slot #8

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 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: 50 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 highest latencies:
System rack9slot8s.osadl.org (updated Sat Apr 20, 2024 12:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
818501640,0irq/46-4a1000002562-21kworker/0:307:06:200
297092810,0chrt27793-21kworker/u2:412:11:020
81850800,0irq/46-4a1000003772-21kworker/u2:112:27:440
81850790,0irq/46-4a10000020571-21ssh11:50:010
81850780,0irq/46-4a10000026732-21kworker/u2:310:10:280
81850780,0irq/46-4a10000015377-21sshd10:15:560
81850770,0irq/46-4a1000006851-21snmpd10:30:140
81850770,0irq/46-4a1000006851-21snmpd08:19:340
81850770,0irq/46-4a10000029766-21ssh09:30:000
81850770,0irq/46-4a10000015049-21sshd08:23:560
2686427710,0sleep026871-21rm12:04:460
81850760,0irq/46-4a100000803-21rm11:01:490
81850760,0irq/46-4a10000024155-21ssh09:15:200
81850760,0irq/46-4a1000002280-21runrttasks09:54:210
81850750,0irq/46-4a1000007436-21ssh09:55:550
175592750,0sleep017319-21kworker/u2:510:21:580
81950740,0irq/47-4a10000031779-21ssh09:35:080
81850740,0irq/46-4a1000009-21ksoftirqd/009:20:520
81850740,0irq/46-4a1000004531-21rm11:11:240
81850740,0irq/46-4a10000032051-21rm12:16:370
81850740,0irq/46-4a10000029016-21runrttasks10:50:430
81850740,0irq/46-4a10000022649-21kworker/u2:210:40:280
81850730,0irq/46-4a100000579-21kworker/u2:011:07:190
81850730,0irq/46-4a1000005553-21rm12:30:260
81850730,0irq/46-4a1000004574-21kworker/u2:411:23:090
81850730,0irq/46-4a1000004261-21rm09:47:480
81850730,0irq/46-4a10000031056-21ssh09:33:090
81850730,0irq/46-4a1000002890-21kworker/u2:207:15:120
81850730,0irq/46-4a10000027314-21kworker/u2:010:47:250
81850730,0irq/46-4a10000020376-21rm10:29:130
81850730,0irq/46-4a10000014654-21rm11:35:400
81850730,0irq/46-4a10000011149-21ssh11:27:170
231522730,0chrt22660-21kworker/u2:509:12:580
85422726,0sleep08548-21ssh12:37:390
81850720,0irq/46-4a1000006851-21snmpd11:30:340
81850720,0irq/46-4a1000004574-21kworker/u2:411:17:010
81850720,0irq/46-4a10000024507-21ssh11:59:130
81850720,0irq/46-4a1000000-21swapper12:05:230
26002720,0chrt32208-21kworker/u2:409:43:260
187952720,0chrt18425-21kworker/u2:208:49:060
163252720,0chrt14759-21kworker/u2:508:32:130
119062720,0sleep011808-21kworker/u2:210:07:160
81850710,0irq/46-4a100000990-21kworker/u2:512:23:260
81850710,0irq/46-4a1000004574-21kworker/u2:411:55:020
81850710,0irq/46-4a10000018181-21idleruntime-cro08:45:010
81850710,0irq/46-4a10000016758-21kworker/u2:410:39:520
71882710,0chrt32466-21kworker/u2:607:30:490
104352710,0chrt10296-21kworker/u2:107:52:560
81950700,0irq/47-4a10000016857-21sshd11:40:560
81850700,0irq/46-4a1000009437-21sshd10:00:550
81850700,0irq/46-4a1000006250-21munin-run07:25:010
81850700,0irq/46-4a10000031244-21ssh10:56:390
190922700,0chrt14759-21kworker/u2:508:50:320
125582700,0chrt12463-21kworker/u2:608:06:570
97032690,0sleep09541-21kworker/u2:007:48:010
64682690,0chrt2942-1kworker/u3:507:25:570
198132690,0sleep017418-21kworker/u2:608:55:220
81850680,0irq/46-4a10000021890-21cron09:10:000
81850680,0irq/46-4a10000015686-21runrttasks08:28:030
78502680,0chrt7253-21kworker/u2:107:35:110
120842680,0sleep011436-21kworker/u2:308:04:080
87152670,0sleep07253-21kworker/u2:107:40:580
81850620,0irq/46-4a1000000-21swapper09:05:020
3395995646,0cyclictest81850irq/46-4a10000007:15:050
3395995444,0cyclictest81850irq/46-4a10000008:15:010
3395995140,0cyclictest81850irq/46-4a10000008:36:530
3395994913,0cyclictest111202chrt07:57:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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