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2025-09-13 - 17:12

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 Sep 13, 2025 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
818501790,0irq/46-4a10000015201-21runrttasks07:08:160
29984998870,0cyclictest11183-21ssh12:24:570
29984998868,0cyclictest3193-21ssh09:50:250
29984998671,0cyclictest31786-21rm11:59:490
29984998669,0cyclictest19852-21ssh09:17:130
29984998669,0cyclictest14061-21ssh11:21:550
29984998468,0cyclictest22743-21diskmemload10:31:420
29984998464,0cyclictest14914-21seq10:15:080
29984998367,0cyclictest8505-21sh12:19:200
29984998265,0cyclictest12729-21rm12:28:090
29984998264,0cyclictest11152-21sh10:07:180
29984997962,0cyclictest16857-21rm11:27:550
29984997960,0cyclictest28815-21ssh11:53:250
29984997864,0cyclictest15730-21chrt09:05:130
29984997862,0cyclictest955-21ssh12:03:090
29984997862,0cyclictest16321-21diskmemload10:37:070
29984997860,0cyclictest17808-21ssh09:12:570
29984997661,0cyclictest20307-21sh10:26:320
29984997660,0cyclictest32499-21seq10:52:240
29984997660,0cyclictest21887-21sh11:38:410
29984997660,0cyclictest16615-21rm12:36:160
29984997658,0cyclictest2679-21sh12:06:450
29984997560,0cyclictest3513-21sh10:59:540
29984997560,0cyclictest11877-21rm11:17:240
29984997460,0cyclictest30569-21ssh10:48:170
29984997458,0cyclictest5587-21ssh11:04:160
29984997360,0cyclictest18753-21ssh11:31:540
29984997156,0cyclictest5624-21diskmemload12:13:060
29984997156,0cyclictest21367-21diskmemload09:20:170
29984997155,0cyclictest23141-21ssh11:41:100
29984997052,0cyclictest0-21swapper10:43:070
29984996955,0cyclictest110482sleep008:35:070
29984996950,0cyclictest0-21swapper09:45:450
29984996848,0cyclictest0-21swapper12:32:240
29984996754,0cyclictest31378-21ssh09:41:280
29984996653,0cyclictest23609-21ssh09:25:020
29984996648,0cyclictest0-21swapper11:13:310
29984996647,0cyclictest0-21swapper10:23:510
29984996646,0cyclictest0-21swapper10:00:490
29984996451,0cyclictest81850irq/46-4a10000011:07:220
29984996247,0cyclictest25233-21ssh11:45:370
29984996142,0cyclictest0-21swapper09:56:590
29984996041,0cyclictest0-21swapper10:11:160
29984995948,0cyclictest101ktimersoftd/007:39:520
29984995947,0cyclictest81950irq/47-4a10000009:34:510
29984995845,0cyclictest81850irq/46-4a10000009:35:460
29984995534,0cyclictest81850irq/46-4a10000007:24:290
29984995342,0cyclictest81850irq/46-4a10000007:59:520
29984995229,0cyclictest3451-21kworker/u2:108:04:590
29984995228,0cyclictest2832-21seq07:42:240
29984995226,0cyclictest10004-21munin-run08:29:550
29984995129,0cyclictest5908-21sshd08:03:220
29984995125,0cyclictest15338-21runrttasks09:02:590
29984995040,0cyclictest101ktimersoftd/007:14:590
29984995038,0cyclictest8825-21sshd08:21:220
29984995033,0cyclictest7111-21latency_hist08:09:540
29984995033,0cyclictest14901-21cron08:31:520
29984995033,0cyclictest0-21swapper08:19:530
29984995024,0cyclictest14823-21munin-run08:59:550
29984994920,0cyclictest26521-21kworker/u2:407:14:310
2998499489,0cyclictest15173-21snmpd08:49:540
29984994833,0cyclictest733-21runrttasks07:28:340
29984994831,0cyclictest3908-21latency_hist07:49:510
29984994830,0cyclictest81850irq/46-4a10000008:49:590
29984994737,0cyclictest81850irq/46-4a10000008:44:520
29984994629,0cyclictest4329-21runrttasks07:52:380
29984994626,0cyclictest1594-21runrttasks07:34:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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