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2024-11-21 - 22:06

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 all highest latencies:
System rack9slot8s.osadl.org (updated Thu Nov 21, 2024 12:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
818501200,0irq/46-4a1000002664-1kworker/u3:207:06:050
81850800,0irq/46-4a10000032712-21ssh11:08:520
81850790,0irq/46-4a10000010710-21ssh11:35:210
81850780,0irq/46-4a1000009320-21ssh11:31:440
81850780,0irq/46-4a10000018109-21runrttasks11:53:570
81950770,0irq/47-4a1000006638-21apt-get11:26:010
81850770,0irq/46-4a1000006851-21snmpd11:55:590
81850770,0irq/46-4a1000006851-21snmpd08:19:410
81850770,0irq/46-4a1000006551-21runrttasks11:24:490
81850760,0irq/46-4a1000006851-21snmpd10:15:140
81850760,0irq/46-4a10000027264-21ssh12:16:080
81850760,0irq/46-4a10000013492-21rm11:42:250
81850750,0irq/46-4a1000009708-21rm10:05:040
81850750,0irq/46-4a1000004240-21rm11:18:570
81850750,0irq/46-4a1000004002-21ssh09:48:470
81850750,0irq/46-4a1000003735-21rm12:37:060
81850750,0irq/46-4a10000029907-21ssh12:22:190
81850750,0irq/46-4a10000027035-21seq10:54:230
81850750,0irq/46-4a10000025634-21rm12:12:130
81850750,0irq/46-4a10000024148-21ssh10:45:560
81850750,0irq/46-4a10000023404-21rm09:12:210
81850750,0irq/46-4a10000022614-21apt-get12:06:000
81850750,0irq/46-4a10000020523-21ssh10:36:100
81850750,0irq/46-4a10000018224-21kworker/u2:311:01:070
81850750,0irq/46-4a10000016459-21munin-run10:25:020
81850740,0irq/46-4a1000007519-21rm09:59:020
81850740,0irq/46-4a10000024653-21rm09:15:280
81850740,0irq/46-4a10000020554-21latency_hist12:00:060
79852740,0sleep07692-21kworker/u2:307:34:050
152752740,0chrt11331-21kworker/u2:608:21:310
81950730,0irq/47-4a1000006851-21snmpd10:30:170
81950730,0irq/47-4a1000002280-21runrttasks07:10:430
81850730,0irq/46-4a10000031519-21chrt09:35:090
81850730,0irq/46-4a10000028106-21runrttasks09:25:120
81850730,0irq/46-4a10000027936-21rm10:56:300
81850730,0irq/46-4a1000002673-21munin-run11:15:030
81850730,0irq/46-4a10000017957-21ssh10:29:130
81850730,0irq/46-4a10000015612-21sh11:47:420
273472730,0sleep026757-21kworker/u2:509:22:560
81850720,0irq/46-4a10000022031-21cat10:40:080
323182720,0chrt31750-21kworker/u2:312:27:590
117302720,0chrt11713-21kworker/u2:210:11:280
94152710,0chrt7371-21kworker/u2:207:43:340
85482710,0sleep08439-21kworker/u2:007:37:420
81850710,0irq/46-4a100000717-21kworker/u2:509:50:250
81850710,0irq/46-4a1000005018-21users07:15:090
81850710,0irq/46-4a1000002255-21ssh09:44:050
81850710,0irq/46-4a10000017865-21chrt08:39:460
81850710,0irq/46-4a10000015315-21kworker/u2:008:40:380
81850710,0irq/46-4a10000014028-21apt-get08:15:010
300922710,0sleep022157-21kworker/u2:109:31:140
131562710,0chrt12854-21kworker/u2:108:08:590
124962710,0chrt12109-21kworker/u2:008:04:340
102992710,0chrt9959-21kworker/u2:307:49:500
81850700,0irq/46-4a1000002425-21ssh12:34:010
81850700,0irq/46-4a10000014427-21kworker/u2:808:30:010
68142700,0chrt5545-21kworker/u2:107:25:300
112562700,0chrt10583-21kworker/u2:407:55:370
81850690,0irq/46-4a1000003335-21kworker/u2:010:09:140
81850690,0irq/46-4a10000021067-21munin-run09:00:030
64172690,0sleep04195-21kworker/u2:807:23:180
219382680,0chrt21409-21kworker/u2:409:05:100
197422680,0sleep011331-21kworker/u2:608:50:230
81850620,0irq/46-4a10000011331-21kworker/u2:608:46:250
81850610,0irq/46-4a1000002054-21cron09:03:010
3810995746,0cyclictest81850irq/46-4a10000008:35:000
3810995645,0cyclictest81850irq/46-4a10000007:55:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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