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2026-04-30 - 15:19
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 Apr 30, 2026 12:44:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
2191327998982,5cyclictest2347329-21kworker/u4:1+events_unbound11:41:041
2191327998877,9cyclictest2192552-21kworker/u4:11+events_unbound08:35:211
2191327998863,9cyclictest2268389-21kworker/u4:1+events_unbound10:05:411
2191327998770,6cyclictest2224480-21kworker/u4:1+events_unbound09:20:361
2191327998274,5cyclictest2255086-21kworker/u4:12+events_unbound10:40:461
2191326997868,7cyclictest2356269-21kworker/u4:2+events_unbound12:01:070
2191327997668,5cyclictest2320642-21kworker/u4:3+events_unbound11:15:551
2191327997566,6cyclictest2242464-21kworker/u4:0+events_unbound09:35:371
2191327997566,6cyclictest2242464-21kworker/u4:0+events_unbound09:35:361
2191326997529,43cyclictest0-21swapper/010:00:010
219132699743,22cyclictest2397628-21ssh12:30:100
2191327997364,7cyclictest2303359-21kworker/u4:1+events_unbound11:05:541
2191326997341,30cyclictest2279960-21gcc10:15:300
2191326997236,33cyclictest2332337-21/usr/sbin/munin11:15:190
2191327997163,5cyclictest2192552-21kworker/u4:11+events_unbound07:35:081
2191326997035,33cyclictest2318719-21latency_hist11:00:010
2191327996960,7cyclictest2210644-21kworker/u4:13+events_unbound08:55:001
2191326996962,5cyclictest2391190-21kworker/u4:0+events_unbound12:26:100
2191326996943,24cyclictest2302223-21proc_pri10:40:360
2191326996941,25cyclictest2310548-21/usr/sbin/munin10:50:180
2191326996937,29cyclictest2275227-21df_abs10:10:190
2191326996934,25cyclictest0-21swapper/011:20:320
2191326996859,7cyclictest2208066-21kworker/u4:10+events_unbound08:55:320
2191326996836,29cyclictest2245486-21/usr/sbin/munin09:35:400
2191326996836,29cyclictest2245486-21/usr/sbin/munin09:35:400
2191326996832,32cyclictest2192827-21aten_r7power_en07:15:160
219132699683,22cyclictest2344896-21modprobe11:30:000
2191326996827,38cyclictest2236983-21unixbench_multi09:25:400
2191326996730,34cyclictest0-21swapper/011:45:300
2191326996730,33cyclictest0-21swapper/012:35:300
2191326996727,37cyclictest0-21swapper/009:20:460
2191326996628,35cyclictest0-21swapper/009:50:240
2191326996627,37cyclictest2284343-21ssh10:20:240
2191327996555,7cyclictest2215164-21/usr/sbin/munin08:40:201
2191326996531,30cyclictest0-21swapper/007:25:200
2191326996530,32cyclictest2367534-21gltestperf11:55:200
2191326996529,34cyclictest2191970-21kernelversion07:10:180
2191326996523,39cyclictest0-21swapper/011:05:160
2191326996456,5cyclictest2366935-21latency_hist11:55:020
2191326996434,28cyclictest2249592-21gcc09:40:320
2191326996428,32cyclictest0-21swapper/012:20:220
2191326996427,34cyclictest0-21swapper/010:36:470
2191326996424,6cyclictest2379928-21sh12:10:010
2191326996334,27cyclictest2331791-21latency_hist11:15:010
2191326996329,31cyclictest2380952-21ssh12:10:290
2191326996328,33cyclictest2241087-21ntp_states09:30:460
2191326996328,31cyclictest0-21swapper/009:00:150
2191326996327,33cyclictest0-21swapper/010:05:540
2191326996326,34cyclictest2197444-21find07:30:380
2191327996254,5cyclictest2192550-21kworker/u4:8+events_unbound08:25:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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