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2025-11-08 - 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 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 100 highest latencies:
System rack9slot8s.osadl.org (updated Sat Nov 08, 2025 12:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
818501750,0irq/46-4a100000609-21runrttasks07:06:390
81850840,0irq/46-4a10000017638-21kworker/u2:212:35:130
81850830,0irq/46-4a10000013640-21ssh11:15:020
81950820,0irq/47-4a10000016372-21kworker/u2:210:23:500
81850820,0irq/46-4a10000030206-21ssh11:50:020
81850820,0irq/46-4a1000002502-21ssh12:00:030
81850810,0irq/46-4a10000010608-21ssh12:17:010
81950800,0irq/47-4a1000006438-21sshd09:50:230
81950800,0irq/47-4a10000016673-21kworker/u2:411:39:590
81850800,0irq/46-4a1000007805-21ssh11:02:280
81850800,0irq/46-4a1000004714-21ssh10:55:500
81850800,0irq/46-4a10000032417-21ssh10:45:440
81850800,0irq/46-4a10000030545-21ssh11:50:380
81850800,0irq/46-4a10000016367-21ssh12:29:220
81850800,0irq/46-4a10000016214-21ssh11:20:150
81950790,0irq/47-4a1000002916-21sshd12:00:280
81850790,0irq/46-4a1000005787-21ssh12:06:510
81850790,0irq/46-4a1000004240-21sh09:45:370
81850790,0irq/46-4a10000026592-21ssh09:24:230
314132790,0chrt30020-21kworker/u2:309:34:470
81950780,0irq/47-4a10000027400-21ssh09:25:580
81950780,0irq/47-4a1000002370-21kworker/u2:609:43:510
81850780,0irq/46-4a1000009282-21ssh12:14:180
81850780,0irq/46-4a1000003152-21ssh10:52:350
81850780,0irq/46-4a10000023875-21ssh10:27:360
81850780,0irq/46-4a10000022300-21ssh11:33:240
81850780,0irq/46-4a10000020069-21ssh11:28:380
81950770,0irq/47-4a1000007808-21sshd07:52:200
81850770,0irq/46-4a1000008747-21ssh09:55:200
81850770,0irq/46-4a10000030143-21ssh10:40:520
148792770,0chrt13968-21kworker/u2:010:08:300
81950760,0irq/47-4a10000021333-21ssh09:13:220
81950760,0irq/47-4a10000019668-21diskmemload10:17:560
81850760,0irq/46-4a1000008023-21kworker/u2:012:20:450
81850760,0irq/46-4a10000025885-21ssh11:40:440
35322760,0chrt1330-21kworker/u2:007:23:320
81950750,0irq/47-4a10000024173-21ssh09:19:250
81950750,0irq/47-4a10000023585-21kworker/u2:010:30:240
81950750,0irq/47-4a10000018734-21apt-get09:04:560
81950750,0irq/47-4a10000015180-21lldpd08:01:580
81850750,0irq/46-4a10000019302-21kworker/u2:809:09:540
81850750,0irq/46-4a10000012302-21kworker/u2:708:24:520
320072750,0sleep030020-21kworker/u2:309:35:520
277592750,0sleep021194-21kworker/u2:610:35:500
12062750,0chrt29931-21kworker/u2:107:10:150
104002750,0chrt10143-21kworker/u2:008:08:410
81950740,0irq/47-4a10000016738-21ssh12:30:030
81950740,0irq/47-4a10000015685-21runrttasks08:44:200
81950740,0irq/47-4a10000013858-21ssh11:15:190
81950740,0irq/47-4a10000010409-21ssh11:08:040
81850740,0irq/46-4a1000004035-21kworker/u2:107:34:510
81850740,0irq/46-4a1000002504-21kworker/u2:407:16:500
176512740,0chrt14997-21kworker/u2:408:57:220
165452740,0sleep010807-21kworker/u2:110:11:580
81950730,0irq/47-4a1000006664-21latency_hist07:44:540
81950730,0irq/47-4a10000016511-21munin-run08:49:550
81950730,0irq/47-4a10000015184-21lldpd08:28:000
81950730,0irq/47-4a10000010807-21kworker/u2:110:01:430
85202720,0sleep07675-21kworker/u2:107:57:080
81950720,0irq/47-4a1000004358-21sshd07:29:190
141242720,0chrt12302-21kworker/u2:708:33:520
81950710,0irq/47-4a10000015339-21kworker/u2:608:49:560
116552700,0sleep010893-21kworker/u2:208:16:530
81950690,0irq/47-4a100000149542chrt08:39:350
56382690,0chrt5530-21kworker/u2:407:37:450
81950620,0irq/47-4a1000007675-21kworker/u2:108:14:540
1062994939,0cyclictest101ktimersoftd/007:47:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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