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2024-07-27 - 14:27

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 Jul 27, 2024 00:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
818501900,0irq/46-4a10000020703-21kworker/0:119:06:020
81950850,0irq/47-4a10000019285-21rm22:49:490
81950830,0irq/47-4a10000032710-21rm23:20:290
81850820,0irq/46-4a10000021423-21sendmail21:40:030
81850810,0irq/46-4a1000001597-21runrttasks00:39:440
81850800,0irq/46-4a10000022901-21ssh21:43:180
81850800,0irq/46-4a10000015833-21runrttasks23:55:580
81950790,0irq/47-4a1000009121-21ssh23:40:360
81950790,0irq/47-4a10000026811-21awk19:40:010
81950790,0irq/47-4a10000021382-21rm22:54:440
81850790,0irq/46-4a10000030656-21ssh23:15:300
81850790,0irq/46-4a10000017984-21rm21:32:070
81850790,0irq/46-4a10000014252-21rm21:23:330
81950780,0irq/47-4a1000007711-21ssh22:22:470
81950780,0irq/47-4a100000386-21ssh22:05:580
81950780,0irq/47-4a10000025902-21ssh21:50:040
81950780,0irq/47-4a10000013349-21ssh22:35:490
81850780,0irq/46-4a10000030905-21rm22:01:300
81850780,0irq/46-4a10000029246-21kworker/u2:220:00:100
81850780,0irq/46-4a10000020831-21rm00:07:350
81850780,0irq/46-4a10000011762-21rm23:46:420
81950770,0irq/47-4a1000008209-21idleruntime-cro21:10:010
81950770,0irq/47-4a1000004880-21rm22:16:090
81950770,0irq/47-4a1000002917-21ssh22:11:350
81950770,0irq/47-4a10000025178-21ssh21:48:300
81950770,0irq/47-4a10000022917-21runrttasks19:15:070
81850770,0irq/46-4a10000031865-21rm00:33:560
81850770,0irq/46-4a10000011896-21seq22:32:300
74282770,0chrt7201-1kworker/u3:323:36:500
81950760,0irq/47-4a1000002118-21apt20:30:010
81950760,0irq/47-4a10000017819-21ssh00:00:230
81850760,0irq/46-4a1000008937-21sshd21:11:340
81850760,0irq/46-4a1000008201-21diskmemload22:25:070
81850760,0irq/46-4a1000004199-21runrttasks20:44:040
81850760,0irq/46-4a10000028941-21rm23:11:540
81850760,0irq/46-4a10000026210-21rm00:20:100
81850760,0irq/46-4a10000026056-21rm23:05:070
81850760,0irq/46-4a10000025024-21rm23:02:530
81850760,0irq/46-4a10000013359-21ssh23:50:180
81850760,0irq/46-4a10000011841-21seq21:18:140
81950750,0irq/47-4a1000006500-21kworker/u2:421:00:400
81950750,0irq/47-4a1000006279-21runrttasks20:58:140
81950750,0irq/47-4a1000006002-21rm23:33:390
81950750,0irq/47-4a1000002853-21munin-run20:35:020
81950750,0irq/47-4a1000002423-21rm23:25:210
81950750,0irq/47-4a10000015037-21rm21:25:110
81850750,0irq/46-4a1000005588-21sshd20:53:320
81850750,0irq/46-4a10000029246-21kworker/u2:220:00:030
81850750,0irq/46-4a10000029125-21sshd21:57:320
81850750,0irq/46-4a10000027146-21kworker/u2:520:20:020
81850750,0irq/46-4a10000022077-21sh22:55:560
81850750,0irq/46-4a10000018430-21kworker/u2:700:15:100
81850750,0irq/46-4a10000018427-21kworker/u2:600:11:280
81850750,0irq/46-4a10000015833-21sshd22:41:330
311742750,0chrt29246-21kworker/u2:220:08:150
81950740,0irq/47-4a100000577-21mktemp20:20:070
81850740,0irq/46-4a10000028344-21chrt00:25:140
81850740,0irq/46-4a10000025581-21runrttasks19:31:090
244292740,0chrt24152-21kworker/u2:619:23:350
81950730,0irq/47-4a1000004591-21kworker/u2:320:50:010
81950730,0irq/47-4a10000022666-21runrttasks19:14:500
33032730,0chrt2465-1kworker/u3:020:37:530
284362730,0sleep027146-21kworker/u2:519:50:260
81950720,0irq/47-4a10000025147-21sshd19:28:330
81850720,0irq/46-4a10000027146-21kworker/u2:519:45:010
320532710,0sleep031686-21kworker/u2:020:14:310
81950690,0irq/47-4a10000024891-21kworker/u2:319:50:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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