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2026-06-08 - 17:01

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, slot #3

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.
Unexpectedly long latencies may be caused by SMIs
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 rack5slot3s.osadl.org (updated Mon Jun 08, 2026 12:44:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
323822239167,23sleep20-21swapper/207:05:552
326292232162,57sleep00-21swapper/007:09:070
325332222154,55sleep10-21swapper/107:07:511
326372203166,24sleep30-21swapper/307:09:133
321991090,107cyclictest0-21swapper/209:37:352
321998077,2cyclictest0-21swapper/209:00:372
321998077,2cyclictest0-21swapper/208:01:482
321997669,6cyclictest0-21swapper/212:30:182
196012480,4sleep019604-21idleruntime07:50:160
291942450,1sleep10-21swapper/110:40:111
260422450,1sleep226045-21awk10:30:262
325993813,18cyclictest26423-21smart_sda11:45:253
30799389,14cyclictest14897-21munin-run08:55:010
32599378,20cyclictest19472-21unixbench_multi10:15:253
32199371,24cyclictest0-21swapper/207:28:462
321993515,7cyclictest0-21swapper/208:59:112
307993511,11cyclictest19316-21basename09:05:010
32599346,6cyclictest21498-21munin-run09:10:013
325993413,6cyclictest20240-40dnf11:31:253
32199341,22cyclictest0-21swapper/209:08:152
31599348,3cyclictest0-21swapper/107:29:211
32599332,18cyclictest87350irq/126-enp1s0-10:25:153
32599332,18cyclictest87350irq/126-enp1s0-10:25:153
32199331,18cyclictest15420-21memory07:40:192
32199330,21cyclictest0-21swapper/207:14:232
30799336,12cyclictest5504-21perf07:20:000
32599328,16cyclictest12275-21ls10:00:183
32599327,8cyclictest15412-21runrttasks10:08:453
325993215,8cyclictest773-21NetworkManager10:22:303
325993212,3cyclictest0-21swapper/309:41:183
325993211,10cyclictest1518-21wc09:35:243
32199321,20cyclictest0-21swapper/208:15:352
32199321,18cyclictest0-21swapper/211:58:352
32199321,15cyclictest0-21swapper/212:36:312
32199321,15cyclictest0-21swapper/210:39:432
32199321,13cyclictest0-21swapper/208:25:192
32199321,12cyclictest9448-21memory08:40:192
32199321,12cyclictest0-21swapper/211:05:422
31599321,23cyclictest0-21swapper/111:24:331
31599321,11cyclictest0-21swapper/107:24:031
31599320,25cyclictest0-21swapper/107:55:231
31599320,12cyclictest0-21swapper/110:23:171
30799328,11cyclictest26527-21idleruntime-cro10:35:010
32599319,5cyclictest87350irq/126-enp1s0-11:35:163
32599319,5cyclictest87350irq/126-enp1s0-11:35:153
32599319,10cyclictest10390-21find09:55:253
325993114,6cyclictest10689-21memory11:10:183
325993112,10cyclictest11456-21ntp_states12:25:213
325993111,12cyclictest24599-21switchtime08:00:233
325993110,12cyclictest25354-21irqstats10:30:183
321993113,10cyclictest0-21swapper/207:51:452
32199311,22cyclictest0-21swapper/211:43:552
32199310,14cyclictest0-21swapper/209:10:262
31599316,3cyclictest0-21swapper/107:53:011
31599312,19cyclictest0-21swapper/111:30:111
31599311,9cyclictest0-21swapper/109:30:151
31599311,23cyclictest0-21swapper/108:18:171
30799313,13cyclictest3905-21munin-run08:30:000
32599308,13cyclictest7926-21/usr/sbin/munin11:05:143
32599306,17cyclictest4945-21cat09:45:113
325993014,4cyclictest27705-21diskstats11:50:143
325993010,6cyclictest15152-21sed07:40:163
325993010,11cyclictest653-21latency_hist10:50:023
32199301,14cyclictest0-21swapper/210:50:312
32199301,12cyclictest0-21swapper/212:23:552
321993010,8cyclictest0-21swapper/211:49:512
32199300,22cyclictest0-21swapper/209:41:312
32599296,12cyclictest29663-21latency_hist08:15:023
321992912,7cyclictest0-21swapper/211:00:152
32199291,12cyclictest0-21swapper/208:22:272
32199291,10cyclictest0-21swapper/211:39:312
32199291,10cyclictest0-21swapper/211:39:312
321992910,9cyclictest21495-21diskmemload10:40:592
32199290,14cyclictest0-21swapper/209:25:352
32199290,13cyclictest0-21swapper/209:56:152
32199290,12cyclictest0-21swapper/208:50:232
315992916,2cyclictest16473-21munin-run07:45:011
31599291,26cyclictest0-21swapper/109:49:441
32599289,11cyclictest7964-21latency_hist12:20:013
32599288,9cyclictest17246-21ls11:25:163
32599287,12cyclictest14826-21cpu12:35:123
32599287,10cyclictest17055-21switchtime10:10:243
325992819,5cyclictest13229-21smart_sda11:15:223
325992817,8cyclictest31104-21gltestperf09:30:143
325992811,6cyclictest23637-21hddtemp_smartct11:40:153
32199281,20cyclictest0-21swapper/210:02:432
32199281,20cyclictest0-21swapper/209:33:272
32199281,20cyclictest0-21swapper/208:13:512
32199281,20cyclictest0-21swapper/207:48:072
321992811,6cyclictest0-21swapper/209:49:232
32199281,14cyclictest0-21swapper/209:17:102
32199281,14cyclictest0-21swapper/209:17:102
32199281,13cyclictest0-21swapper/212:27:072
32199281,13cyclictest0-21swapper/210:09:592
32199281,11cyclictest0-21swapper/209:54:192
32199280,13cyclictest0-21swapper/207:38:352
31599281,17cyclictest0-21swapper/109:26:131
315992811,4cyclictest12417-21ntp_states10:00:211
31599281,13cyclictest0-21swapper/108:30:151
31599281,10cyclictest0-21swapper/112:19:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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