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2025-12-07 - 21:58

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 Sun Dec 07, 2025 12:44:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1354621180,2chrt0-21swapper/309:09:053
1354621180,2chrt0-21swapper/309:09:053
1210721050,3sleep30-21swapper/311:58:573
133182940,2sleep30-21swapper/310:34:073
133182940,2sleep30-21swapper/310:34:073
164402740,1sleep00-21swapper/010:44:010
164402740,1sleep00-21swapper/010:44:010
156052690,2sleep00-21swapper/009:14:090
156052690,2sleep00-21swapper/009:14:090
283972680,4sleep30-21swapper/312:39:133
283972680,4sleep30-21swapper/312:39:133
217562680,2sleep021758-21grep12:24:020
217562680,2sleep021758-21grep12:24:020
149002680,3sleep30-21swapper/310:39:063
149002680,3sleep30-21swapper/310:39:063
95932590,1sleep00-21swapper/011:49:130
95932590,1sleep00-21swapper/011:49:130
265702540,3sleep20-21swapper/209:44:022
265702540,3sleep20-21swapper/209:44:022
188822500,3sleep20-21swapper/212:14:122
188822500,3sleep20-21swapper/212:14:122
214902490,1sleep30-21swapper/308:04:053
214902490,1sleep30-21swapper/308:04:053
131312480,3sleep013006-21/usr/sbin/munin09:09:020
131312480,3sleep013006-21/usr/sbin/munin09:09:020
128382470,3sleep00-21swapper/011:59:060
128382470,3sleep00-21swapper/011:59:060
118052470,1sleep3431rcuc/309:04:073
326202460,8sleep032623-21grep11:24:130
326202460,8sleep032623-21grep11:24:130
192362450,2sleep30-21swapper/307:59:043
192362450,2sleep30-21swapper/307:59:043
134612450,3chrt0-21swapper/311:59:173
134612450,3chrt0-21swapper/311:59:173
184262430,2sleep30-21swapper/307:54:133
184262430,2sleep30-21swapper/307:54:133
95272400,3sleep20-21swapper/210:24:092
95272400,3sleep20-21swapper/210:24:092
185802400,3sleep30-21swapper/312:14:093
185802400,3sleep30-21swapper/312:14:093
145562390,3sleep20-21swapper/212:04:072
145562390,3sleep20-21swapper/212:04:072
49002370,3sleep20-21swapper/210:13:522
264942360,2sleep00-21swapper/011:09:100
264942360,2sleep00-21swapper/011:09:100
2121993630,4cyclictest15744-21latency_hist12:08:500
2121993630,4cyclictest15744-21latency_hist12:08:500
266122340,3sleep00-21swapper/008:19:020
266122340,3sleep00-21swapper/008:19:020
101412340,2sleep110272-21timerandwakeup08:59:121
2124993226,4cyclictest1332-21ntpd11:34:101
2124993226,4cyclictest1332-21ntpd11:34:101
2124993225,5cyclictest1-21systemd12:29:021
2124993225,5cyclictest1-21systemd12:29:021
2121993226,4cyclictest19067-21gltestperf09:24:060
2121993226,4cyclictest19067-21gltestperf09:24:060
2121993226,4cyclictest11243-21sensors_temp11:54:140
2121993225,5cyclictest11441-21netstat10:29:110
2121993218,12cyclictest0-21swapper/012:19:040
212599311,3cyclictest0-21swapper/207:40:332
212599311,3cyclictest0-21swapper/207:40:332
212599311,24cyclictest23062-21chrt12:26:222
212599311,24cyclictest23062-21chrt12:26:222
2124993127,3cyclictest2120-21cyclictest08:43:571
2124993127,3cyclictest2120-21cyclictest08:43:571
2124993124,5cyclictest17556-21gltestperf07:54:031
2124993124,5cyclictest17556-21gltestperf07:54:031
2121993126,3cyclictest0-21swapper/008:33:490
2121993126,3cyclictest0-21swapper/008:33:490
2121993124,5cyclictest11462-21gltestperf09:04:030
61912300,2chrt0-21swapper/207:24:052
61912300,2chrt0-21swapper/207:24:052
212599301,24cyclictest23391-21chrt11:00:272
212599301,23cyclictest3064-21chrt10:08:542
212599301,23cyclictest3064-21chrt10:08:542
212599301,23cyclictest21750-21chrt10:58:262
212599301,23cyclictest21750-21chrt10:58:262
212599300,23cyclictest25698-21chrt09:40:282
212599300,23cyclictest25698-21chrt09:40:282
2124993023,5cyclictest14034-21sshd10:36:031
2124993023,5cyclictest14034-21sshd10:36:031
2121993026,3cyclictest25340-21timerandwakeup09:39:120
2121993026,3cyclictest25340-21timerandwakeup09:39:120
2121993026,3cyclictest2120-21cyclictest10:19:030
2121993026,3cyclictest2120-21cyclictest10:19:030
2121993026,2cyclictest0-21swapper/010:54:040
2121993026,2cyclictest0-21swapper/010:54:040
2121993026,2cyclictest0-21swapper/007:39:030
2121993026,2cyclictest0-21swapper/007:39:030
2121993025,3cyclictest0-21swapper/010:14:130
2121993025,3cyclictest0-21swapper/010:14:130
2121993024,5cyclictest8281-21kernelversion07:29:050
2121993024,5cyclictest8281-21kernelversion07:29:050
2121993024,4cyclictest0-21swapper/011:44:120
2121993024,4cyclictest0-21swapper/011:44:120
2121993015,4cyclictest17240-21cpu07:54:010
2121993015,4cyclictest17240-21cpu07:54:010
212599291,2cyclictest0-21swapper/210:44:032
212599291,2cyclictest0-21swapper/210:44:032
212599291,2cyclictest0-21swapper/209:49:032
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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