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2026-03-23 - 15:59

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, slot #5

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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  Phytec
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 rackbslot5s.osadl.org (updated Mon Mar 23, 2026 12:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2114323995342,6cyclictest2119508-21grep07:20:240
2114323995144,4cyclictest2197561-21munin-plugin-st11:10:010
2114332994941,4cyclictest2183490-21sh10:30:012
2114334994841,4cyclictest2188564-21unixbench_multi10:40:263
2114334994841,4cyclictest2188564-21unixbench_multi10:40:253
2114327994737,7cyclictest2129732-21grep07:50:251
2114332994639,4cyclictest2143840-21munin-plugin-st08:35:002
2114332994639,4cyclictest2143840-21munin-plugin-st08:35:002
2114332994635,6cyclictest2186658-21unixbench_multi10:35:272
2114327994436,4cyclictest0-21swapper/107:10:111
2114332994333,6cyclictest2225232-21fschecks_count12:30:152
2114332994332,8cyclictest2190742-21munin-plugin-st10:50:012
2114334994231,8cyclictest2187146-21latency_hist10:40:003
2114332994235,4cyclictest2203121-21fschecks_time11:25:162
2114332994235,4cyclictest2185184-21apt-get10:35:012
2114327994031,5cyclictest2212474-21grep11:50:271
2114327994030,6cyclictest2119511-21unixbench_multi07:20:241
2114334993931,4cyclictest0-21swapper/310:35:013
2114332993929,6cyclictest0-21swapper/210:45:002
2114332993929,6cyclictest0-21swapper/210:45:002
2114323993931,5cyclictest2130186-21auditctl07:55:010
2114334993830,4cyclictest0-21swapper/308:10:163
2114323993832,3cyclictest0-21swapper/010:45:000
2114323993832,3cyclictest0-21swapper/010:45:000
2114327993730,4cyclictest2187384-21latency_hist10:40:011
2114327993730,4cyclictest0-21swapper/112:20:241
2114327993730,4cyclictest0-21swapper/112:20:241
2114327993729,4cyclictest0-21swapper/112:05:141
2114327993728,6cyclictest164-21systemd-journal08:00:211
2114334993628,4cyclictest0-21swapper/312:20:143
2114334993628,4cyclictest0-21swapper/312:20:143
2114332993629,4cyclictest0-21swapper/209:20:002
2114332993626,6cyclictest0-21swapper/212:10:242
2114327993629,4cyclictest0-21swapper/112:20:001
2114327993629,4cyclictest0-21swapper/112:20:001
2114327993629,4cyclictest0-21swapper/107:45:191
2114323993630,3cyclictest0-21swapper/011:50:270
2114323993626,6cyclictest2210747-21grep11:45:250
2114334993527,4cyclictest0-21swapper/308:50:393
2114334993527,4cyclictest0-21swapper/307:20:013
2114334993525,5cyclictest438-21cron07:40:013
2114332993525,6cyclictest0-21swapper/212:05:002
2114332993525,6cyclictest0-21swapper/211:40:002
2114332993525,6cyclictest0-21swapper/209:50:002
2114327993525,7cyclictest2147460-21auditctl08:45:011
2114323993525,6cyclictest2169218-21grep09:45:250
2114323993525,6cyclictest0-21swapper/009:40:500
2114332993427,4cyclictest0-21swapper/209:55:002
2114332993427,4cyclictest0-21swapper/209:55:002
2114332993424,6cyclictest0-21swapper/207:45:262
2114332993423,6cyclictest0-21swapper/212:15:262
2114332993423,6cyclictest0-21swapper/212:15:262
2114327993428,4cyclictest2192207-21kworker/u8:1+events_unbound11:11:131
2114327993427,4cyclictest2138713-21latency_hist08:20:001
2114327993426,4cyclictest0-21swapper/110:25:011
2114327993426,4cyclictest0-21swapper/107:45:011
2114327993423,8cyclictest0-21swapper/110:15:001
2114323993426,4cyclictest0-21swapper/008:00:000
2114323993423,8cyclictest2203939-21grep11:25:250
2114332993326,4cyclictest2114315-21cyclictest08:10:152
2114332993323,6cyclictest0-21swapper/209:25:252
2114332993323,6cyclictest0-21swapper/207:40:012
2114332993321,8cyclictest2131926-21sendmail08:00:012
2114332993318,10cyclictest0-21swapper/211:20:002
2114327993326,4cyclictest2194141-21munin-plugin-st11:00:001
2114323993326,4cyclictest0-21swapper/012:10:150
2114323993325,5cyclictest2180291-21grep10:20:160
2114323993322,6cyclictest2126394-21grep07:40:260
2114332993225,3cyclictest0-21swapper/210:10:162
2114332993223,5cyclictest1-21systemd07:10:112
2114332993222,6cyclictest0-21swapper/211:50:272
2114332993222,6cyclictest0-21swapper/211:05:162
2114332993222,6cyclictest0-21swapper/210:00:252
2114332993222,6cyclictest0-21swapper/210:00:002
2114332993222,6cyclictest0-21swapper/210:00:002
2114332993221,6cyclictest0-21swapper/210:25:012
2114327993224,5cyclictest0-21swapper/108:45:261
2114327993222,7cyclictest2164030-21grep09:30:241
2114327993221,7cyclictest2219707-21cron12:15:001
2114327993218,10cyclictest204-21dbus-daemon08:10:241
2114323993223,7cyclictest121ktimers/009:30:110
2114323993223,5cyclictest0-21swapper/012:10:000
2114334993123,6cyclictest2144482-21fschecks_time08:35:173
2114334993121,7cyclictest2174319-21grep10:00:263
2114334993121,6cyclictest0-21swapper/309:20:003
2114332993123,4cyclictest0-21swapper/208:30:002
2114332993123,4cyclictest0-21swapper/208:30:002
2114332993122,4cyclictest0-21swapper/208:15:152
2114332993121,6cyclictest0-21swapper/212:35:262
2114332993121,6cyclictest0-21swapper/212:25:002
2114332993121,6cyclictest0-21swapper/212:25:002
2114332993121,6cyclictest0-21swapper/208:55:162
2114332993120,7cyclictest0-21swapper/207:20:012
2114332993113,11cyclictest131rcu_preempt09:00:132
2114327993124,5cyclictest2141255-21kworker/u8:3+events_unbound08:30:371
2114327993124,5cyclictest2141255-21kworker/u8:3+events_unbound08:30:371
2114327993124,4cyclictest0-21swapper/110:55:001
2114327993124,3cyclictest0-21swapper/110:00:001
2114327993124,3cyclictest0-21swapper/110:00:001
2114327993123,5cyclictest2195396-21grep11:00:241
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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