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2025-12-03 - 16:21

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #4, slot #1

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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack4slot1s.osadl.org (updated Wed Dec 03, 2025 12:44:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2257721340,3sleep116901-21cyclictest08:54:011
2257721340,3sleep116901-21cyclictest08:54:011
2798421190,2chrt0-21swapper/310:34:003
3094521180,3sleep30-21swapper/307:49:073
3094521180,3sleep30-21swapper/307:49:073
741921140,2chrt7422-21fschecks_count08:14:011
741921140,2chrt7422-21fschecks_count08:14:011
970121120,3sleep30-21swapper/311:09:103
970121120,3sleep30-21swapper/311:09:103
870221050,3chrt0-21swapper/311:08:533
870221050,3chrt0-21swapper/311:08:533
307272970,3sleep20-21swapper/209:14:082
307272970,3sleep20-21swapper/209:14:082
21142850,3sleep3431rcuc/307:59:043
21142850,3sleep3431rcuc/307:59:043
327052830,2sleep129-21ksoftirqd/107:54:031
100712830,3chrt0-21swapper/309:44:123
100712830,3chrt0-21swapper/309:44:123
51212760,3sleep20-21swapper/209:33:582
51212760,3sleep20-21swapper/209:33:582
288802720,2sleep20-21swapper/207:44:032
9032700,3chrt907-21head07:54:100
139622690,3sleep20-21swapper/208:29:092
139622690,3sleep20-21swapper/208:29:092
78032660,3sleep30-21swapper/312:29:133
78032660,3sleep30-21swapper/312:29:133
8802620,3sleep30-21swapper/312:13:543
8802620,3sleep30-21swapper/312:13:543
24392610,2sleep30-21swapper/309:24:103
115722610,3chrt0-21swapper/109:49:081
115722610,3chrt0-21swapper/109:49:081
17172600,3chrt0-21swapper/310:49:043
17172600,3chrt0-21swapper/310:49:043
5752590,3sleep20-21swapper/207:54:082
325562590,3sleep20-21swapper/209:19:062
325562590,3sleep20-21swapper/209:19:062
293162590,2sleep029317-21sshd10:36:110
172352580,3sleep30-21swapper/310:04:093
172352580,3sleep30-21swapper/310:04:093
36712570,3chrt0-21swapper/112:19:101
278632570,4sleep20-21swapper/210:33:552
308372540,3sleep0201rcuc/010:39:120
231462530,3sleep30-21swapper/310:19:093
80352520,4sleep30-21swapper/309:39:133
80352520,4sleep30-21swapper/309:39:133
227372520,2sleep20-21swapper/208:54:022
227372520,2sleep20-21swapper/208:54:022
186982520,1sleep2351rcuc/208:43:572
186982520,1sleep2351rcuc/208:43:572
60132510,3sleep20-21swapper/212:24:142
57162510,1sleep10-21swapper/109:34:051
57162510,1sleep10-21swapper/109:34:051
270652470,2chrt0-21swapper/010:29:110
221862470,2chrt0-21swapper/211:44:022
243222430,3sleep30-21swapper/311:49:053
16903994333,8cyclictest281ktimers/111:53:571
16903994333,8cyclictest281ktimers/111:53:571
146972400,2sleep114691-21awk08:33:471
146972400,2sleep114691-21awk08:33:471
39602390,3sleep30-21swapper/308:04:063
39602390,3sleep30-21swapper/308:04:063
191312370,3sleep30-21swapper/308:44:033
191312370,3sleep30-21swapper/308:44:033
1690299372,22cyclictest14472-21kworker/0:1+events_power_efficient08:38:580
58142360,2sleep16011-21unixbench_singl12:24:141
20122360,3sleep20-21swapper/207:59:032
20122360,3sleep20-21swapper/207:59:032
1690299366,24cyclictest55150irq/47-eth008:13:570
1690299366,24cyclictest55150irq/47-eth008:13:570
16902993613,15cyclictest171ktimers/009:28:570
16903993528,5cyclictest4459-21wc08:04:141
16903993528,5cyclictest4459-21wc08:04:141
112152350,3sleep30-21swapper/312:39:103
112152350,3sleep30-21swapper/312:39:103
16903993429,3cyclictest11428-21timerandwakeup12:39:121
16903993429,3cyclictest11428-21timerandwakeup12:39:121
16903993428,4cyclictest281ktimers/109:18:581
16903993428,4cyclictest281ktimers/109:18:581
16903993426,6cyclictest281ktimers/112:09:031
16903993426,6cyclictest281ktimers/112:09:031
16902993422,9cyclictest0-21swapper/008:43:570
16902993422,9cyclictest0-21swapper/008:43:570
16903993328,3cyclictest7009-21gltestperf12:29:041
16903993328,3cyclictest7009-21gltestperf12:29:041
16903993328,3cyclictest663-21runrttasks12:14:051
16903993328,3cyclictest663-21runrttasks12:14:051
16903993328,2cyclictest0-21swapper/109:13:461
16903993328,2cyclictest0-21swapper/109:13:461
16903993327,4cyclictest29272-21cron12:03:461
16903993327,4cyclictest29272-21cron12:03:461
16903993327,4cyclictest29272-21cron12:03:461
1690299334,23cyclictest201rcuc/011:58:580
1690299334,23cyclictest201rcuc/011:58:580
1690299334,23cyclictest201rcuc/011:58:580
16903993227,3cyclictest29890-21gltestperf12:04:011
16903993226,5cyclictest281ktimers/108:59:001
16903993226,5cyclictest281ktimers/108:59:001
16903993226,4cyclictest29531-21latency_hist10:38:461
16903993226,4cyclictest21183-21gltestperf07:24:021
1690299324,21cyclictest16586-1kworker/0:1H+mmc_complete11:43:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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