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2025-08-21 - 16:18

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 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: 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 Thu Aug 21, 2025 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
150839911528,0cyclictest16841-21runrttasks09:43:150
150839911429,0cyclictest13359-21ssh11:53:340
150839911239,0cyclictest81850irq/46-4a10000012:04:250
150839911224,0cyclictest22223-21sh09:54:520
150839911134,0cyclictest17108-21latency_hist07:19:530
150839911132,0cyclictest1675-21sh10:19:560
150839911032,0cyclictest1371-21ssh09:10:240
150839911031,0cyclictest23008-21sh09:56:210
150839911025,0cyclictest9720-21sh10:36:540
1442721100,0sleep013844-21kworker/u2:407:04:560
150839910927,0cyclictest20444-21sh12:08:430
150839910926,0cyclictest6453-21latency_hist10:30:000
150839910835,0cyclictest81850irq/46-4a10000009:33:460
150839910830,0cyclictest17608-21sh10:53:350
150839910829,0cyclictest4709-21sh09:17:250
150839910731,0cyclictest6418-21seq11:38:390
150839910631,0cyclictest2207-21ssh12:39:130
150839910626,0cyclictest8246-21ssh09:24:570
150839910537,0cyclictest81850irq/46-4a10000010:11:420
150839910529,0cyclictest1954-21sh10:20:180
15083991049,0cyclictest6772-21ssh10:30:340
150839910331,0cyclictest15201-21runrttasks07:54:520
150839910328,0cyclictest28093-21diskmemload10:07:040
150839910128,0cyclictest19649-21ssh09:49:190
150839910039,0cyclictest81850irq/46-4a10000011:20:230
15083999941,0cyclictest81850irq/46-4a10000011:18:240
15083999935,0cyclictest81850irq/46-4a10000011:28:580
15083999534,0cyclictest81850irq/46-4a10000008:50:210
15083999532,0cyclictest81850irq/46-4a10000009:00:250
15083999328,0cyclictest0-21swapper11:45:050
15083999227,0cyclictest0-21swapper10:44:380
15083999130,0cyclictest15201-21runrttasks07:28:280
15083999127,0cyclictest0-21swapper11:07:410
15083999126,0cyclictest0-21swapper10:48:080
15083998827,0cyclictest0-21swapper11:43:310
15083998724,0cyclictest0-21swapper12:34:010
15083998525,0cyclictest0-21swapper12:22:400
15083998524,0cyclictest0-21swapper11:32:240
15083998237,0cyclictest81850irq/46-4a10000010:55:530
15083998221,0cyclictest0-21swapper11:11:510
15083997028,0cyclictest0-21swapper10:03:310
15083996727,0cyclictest0-21swapper09:36:070
15083996632,0cyclictest0-21swapper11:03:220
15083996526,0cyclictest0-21swapper11:59:030
15083996128,0cyclictest0-21swapper09:21:320
81850600,0irq/46-4a1000000-21swapper12:10:500
81850590,0irq/46-4a1000000-21swapper12:19:000
15083995948,0cyclictest81850irq/46-4a10000012:26:230
15083995848,0cyclictest101ktimersoftd/008:34:530
101550,0ktimersoftd/00-21swapper07:45:450
101550,0ktimersoftd/00-21swapper07:19:460
15083995429,0cyclictest0-21swapper07:34:510
101540,0ktimersoftd/00-21swapper08:45:070
15083995343,0cyclictest81850irq/46-4a10000008:59:530
15083995342,0cyclictest81850irq/46-4a10000009:09:560
15083995340,0cyclictest81850irq/46-4a10000007:57:500
101530,0ktimersoftd/00-21swapper08:15:490
15083995242,0cyclictest101ktimersoftd/008:14:530
15083995134,0cyclictest15293-21runrttasks07:10:430
101490,0ktimersoftd/00-21swapper08:05:090
15083994833,0cyclictest15081-21cyclictest08:36:270
15083994832,0cyclictest15201-21runrttasks08:02:350
15083994832,0cyclictest15173-21snmpd08:25:140
15083994830,0cyclictest15173-21snmpd07:38:150
15083994732,0cyclictest15081-21cyclictest08:22:430
15083994731,0cyclictest29617-21latency_hist08:44:540
15083994635,0cyclictest81850irq/46-4a10000007:40:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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