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2026-05-18 - 15:10
OSADL QA Farm

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #7, slot #2

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: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack7slot2.osadl.org (updated Mon May 18, 2026 12:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
12020589912789,31cyclictest1317627-21kworker/u4:7+events_unbound10:57:171
12020589910193,5cyclictest1204640-21kworker/u4:10+events_unbound08:10:001
12020589910193,5cyclictest1204640-21kworker/u4:10+events_unbound08:10:001
1202058999688,5cyclictest1308893-21kworker/u4:10+events_unbound10:45:331
1202057999587,6cyclictest1247942-21kworker/u4:4+events_unbound09:35:200
1202057999586,6cyclictest1308893-21kworker/u4:10+events_unbound11:05:400
1202057999181,7cyclictest1324127-21ssh10:53:370
1202057999181,7cyclictest1324127-21ssh10:53:360
1202058999076,7cyclictest1221303-21kworker/u4:8+events_unbound08:25:101
1202057998880,6cyclictest1205951-21kworker/u4:12+events_unbound09:05:170
1202057998880,6cyclictest1205951-21kworker/u4:12+events_unbound09:05:160
1202057998772,11cyclictest53-21kswapd012:20:090
1202057998248,29cyclictest0-21swapper/010:48:360
1202057997745,29cyclictest1281571-21memory10:05:230
1202057997663,8cyclictest0-21swapper/009:55:290
1202057997258,9cyclictest1295266-21unixbench_singl10:20:400
120205799724,13cyclictest1202054-21cyclictest07:10:010
1202057997122,45cyclictest1307898-21sed10:35:380
1202057997061,7cyclictest1327076-21ssh10:56:560
1202057997034,33cyclictest0-21swapper/010:30:270
1202057996960,6cyclictest1357595-21kworker/u4:0+events_unbound11:45:500
1202057996955,11cyclictest37-21kcompactd010:01:400
1202057996935,31cyclictest1360382-21/usr/sbin/munin11:35:220
120205799692,61cyclictest1351647-21ntpq11:25:240
1202057996860,6cyclictest1204641-21kworker/u4:11+events_unbound07:59:580
1202057996835,29cyclictest0-21swapper/010:10:330
1202057996830,34cyclictest0-21swapper/012:25:270
120205799682,64cyclictest151ktimers/008:55:380
1202058996761,4cyclictest1218715-21kworker/u4:4+events_unbound08:17:011
1202057996747,17cyclictest1338736-21grep11:10:370
1202057996734,29cyclictest0-21swapper/011:50:330
1202057996730,33cyclictest0-21swapper/008:10:000
1202057996730,33cyclictest0-21swapper/008:10:000
1202057996638,25cyclictest1237453-21dpkg09:15:020
1202057996632,30cyclictest0-21swapper/009:50:300
1202057996632,30cyclictest0-21swapper/007:45:370
120205799662,20cyclictest1398037-21ssh12:18:020
120205799653,16cyclictest1382705-21ssh12:00:290
1202057996529,32cyclictest0-21swapper/009:40:200
1202057996528,34cyclictest0-21swapper/008:30:390
1202057996525,37cyclictest1298210-21/usr/sbin/munin10:25:230
120205799644,25cyclictest1388924-21ssh12:07:340
1202057996427,34cyclictest0-21swapper/009:30:400
1202057996425,35cyclictest0-21swapper/009:10:390
1202057996421,40cyclictest1290786-21sh10:15:440
120205799641,15cyclictest1364219-21apt-get11:40:100
120205799636,17cyclictest1208513-21modprobe07:35:000
120205799636,17cyclictest1208513-21modprobe07:34:590
120205799633,16cyclictest1311807-21ntpq10:40:250
120205799631,4cyclictest1329647-21ssh11:00:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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