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2025-12-04 - 20:45

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 Dec 04, 2025 12:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
818501950,0irq/46-4a10000014983-21kworker/0:007:06:510
81950870,0irq/47-4a10000022268-21kworker/u2:112:30:010
81850860,0irq/46-4a1000002997-21kworker/u2:409:35:030
81950850,0irq/47-4a100000484-21munin-run11:25:000
81950840,0irq/47-4a1000007843-21dpkg11:40:140
81850830,0irq/46-4a100000349-21ssh12:33:450
81850830,0irq/46-4a10000031976-21gpgv08:54:560
81850830,0irq/46-4a10000010720-21ssh09:28:080
81950820,0irq/47-4a1000008034-21kworker/u2:711:46:120
81950820,0irq/47-4a10000023623-21awk11:04:580
81950820,0irq/47-4a10000017634-21ssh12:01:130
81850820,0irq/46-4a100000778-21kworker/u2:509:14:370
81850820,0irq/46-4a1000002312-21ssh10:19:250
81850820,0irq/46-4a10000015038-21ssh10:46:290
81850820,0irq/46-4a10000013387-21ssh11:52:190
81950810,0irq/47-4a1000003607-21rm10:22:020
81950810,0irq/47-4a1000001515-21rm12:36:040
81950810,0irq/47-4a10000014901-21cron10:51:580
81950810,0irq/47-4a10000013063-21ssh10:42:180
81850810,0irq/46-4a10000029650-21ssh10:08:230
81850810,0irq/46-4a10000029129-21ssh11:16:430
81850810,0irq/46-4a10000017172-21ssh09:41:370
81950800,0irq/47-4a1000009608-21rm10:34:590
81950800,0irq/47-4a10000023127-21ssh09:54:300
81950800,0irq/47-4a10000012680-21ssh09:32:160
81850800,0irq/46-4a10000023348-21sh12:13:340
81850800,0irq/46-4a10000022836-21runrttasks07:55:160
81850800,0irq/46-4a10000019648-21ssh12:05:300
81950790,0irq/47-4a10000028807-21apt08:34:530
81950790,0irq/47-4a10000015184-21lldpd11:06:550
81950790,0irq/47-4a10000015184-21lldpd07:51:320
81850790,0irq/46-4a10000032685-21ssh10:14:580
81850790,0irq/46-4a1000003141-21ssh11:30:270
81850790,0irq/46-4a1000001440-21ssh11:26:530
55572790,0sleep05157-21kworker/u2:411:35:380
81950780,0irq/47-4a1000006925-21ssh09:20:000
81950780,0irq/47-4a10000027188-21runrttasks11:12:350
81950780,0irq/47-4a10000026389-21apt-get08:19:530
81950780,0irq/47-4a10000024727-21rm12:16:250
81950780,0irq/47-4a10000018791-21latency_hist07:29:530
81950780,0irq/47-4a1000001210-21latency_hist09:04:560
81950780,0irq/47-4a10000011560-21runrttasks10:39:130
81850780,0irq/46-4a1000006417-21ssh10:28:070
81850780,0irq/46-4a10000029815-21kworker/u2:109:19:560
81850780,0irq/46-4a10000019937-21ssh09:47:350
81850780,0irq/46-4a10000019878-21ssh10:56:530
280772780,0chrt27083-21kworker/u2:312:23:370
81950770,0irq/47-4a10000032142-21gpg-connect-age08:55:000
81950770,0irq/47-4a10000021923-21kworker/u2:009:55:250
81950770,0irq/47-4a10000016496-21cpu07:15:000
298092770,0sleep022931-21kworker/u2:208:41:030
272152770,0sleep026930-21kworker/u2:508:24:000
270212775,0sleep027026-21ssh10:02:450
81950760,0irq/47-4a10000024454-21kworker/u2:308:09:530
81950760,0irq/47-4a10000017839-21sshd07:23:130
308782760,0sleep022931-21kworker/u2:208:47:090
241452760,0chrt23706-21kworker/u2:408:04:480
202212760,0chrt19092-21kworker/u2:107:39:420
81950750,0irq/47-4a10000015295-21ssh11:56:180
81950750,0irq/47-4a10000015184-21lldpd08:39:340
206122750,0chrt19092-21kworker/u2:107:41:400
280132730,0sleep022931-21kworker/u2:208:29:310
81950710,0irq/47-4a10000015180-21lldpd07:32:460
159662710,0sleep015643-21kworker/u2:407:13:360
81950700,0irq/47-4a10000015180-21lldpd07:49:470
101660,0ktimersoftd/0971-21seq09:03:060
15412994831,0cyclictest15410-21cyclictest08:12:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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