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2026-06-12 - 02:10
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 Thu Jun 11, 2026 12:44:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
11505669910899,7cyclictest1319410-21kworker/u4:15+events_unbound11:51:011
11505669910899,7cyclictest1319410-21kworker/u4:15+events_unbound11:51:011
1150566999783,6cyclictest1151800-21kworker/u4:15+events_unbound08:10:221
1150565999787,7cyclictest1168490-21kworker/u4:7+events_unbound08:20:280
1150566999587,6cyclictest1151799-21kworker/u4:14+events_unbound07:20:041
1150566999587,6cyclictest1151799-21kworker/u4:14+events_unbound07:20:041
1150566999285,5cyclictest1240812-21kworker/u4:4+events_unbound10:35:511
1150565998878,6cyclictest1245286-21kworker/u4:5+xprtiod10:30:080
1150566998573,5cyclictest1354269-21kworker/u4:12+events_unbound12:31:071
1150565998269,9cyclictest1269177-21apt-get10:50:070
1150565998167,10cyclictest53-21kswapd009:55:120
1150565998167,10cyclictest53-21kswapd009:55:120
1150565997661,12cyclictest53-21kswapd010:25:110
1150565997630,42cyclictest0-21swapper/009:45:240
1150566997364,7cyclictest53-21kswapd010:25:011
1150565997365,6cyclictest1159484-21kworker/u4:3+events_unbound07:45:120
1150566997163,6cyclictest1272069-21kworker/u4:12+events_unbound11:05:561
1150565997160,8cyclictest1168492-21kworker/u4:9+events_unbound09:05:010
1150565997127,28cyclictest0-21swapper/012:25:310
1150565997056,9cyclictest1186824-21ntp_kernel_err09:15:280
1150565996961,5cyclictest1205851-21kworker/u4:3+events_unbound09:45:000
1150565996943,22cyclictest1185865-21latency_hist09:15:010
1150565996939,27cyclictest1226764-21timerandwakeup10:00:410
1150565996934,32cyclictest1261021-21fschecks_count10:40:210
1150565996835,30cyclictest1165179-21sshd08:05:190
1150565996834,31cyclictest1295724-21aten_r7power_po11:20:150
1150565996834,29cyclictest0-21swapper/011:25:290
1150565996830,35cyclictest1344483-21processes12:15:380
115056599679,18cyclictest1282546-21/usr/sbin/munin11:05:120
115056599674,59cyclictest1181330-21diskmemload12:35:370
1150565996730,32cyclictest0-21swapper/011:00:330
1150565996729,34cyclictest0-21swapper/010:45:170
1150565996636,26cyclictest1230573-21/usr/sbin/munin10:05:220
1150565996631,30cyclictest0-21swapper/010:10:170
1150565996536,25cyclictest0-21swapper/008:35:310
1150565996535,27cyclictest1204178-21tail09:35:210
1150565996534,28cyclictest1349043-21grep12:20:410
1150565996531,30cyclictest0-21swapper/011:35:220
1150565996531,28cyclictest0-21swapper/012:00:330
1150565996530,31cyclictest0-21swapper/011:40:370
1150565996529,34cyclictest1357120-21if_err_eth012:30:200
1150565996525,30cyclictest1291253-21ssh11:15:090
1150565996523,37cyclictest1152043-21aten_r7power_cu07:15:170
115056599652,21cyclictest1339858-21ntpq12:10:290
115056599652,16cyclictest1243110-21apt-get10:20:140
1150565996429,30cyclictest0-21swapper/011:30:330
1150565996425,34cyclictest1238799-21basename10:15:150
1150566996356,5cyclictest1328288-21kworker/u4:8+events_unbound12:40:011
1150566996355,5cyclictest1245286-21kworker/u4:5+xprtiod10:25:101
1150565996332,20cyclictest0-21swapper/008:10:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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