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2026-03-30 - 15:33

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, 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.

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 rack7slot3s.osadl.org (updated Mon Mar 30, 2026 12:43:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16542991063,35cyclictest0-21swapper/007:10:150
16542991063,35cyclictest0-21swapper/007:10:150
174421040,2sleep0101ktimersoftd/009:55:310
1604121030,2sleep10-21swapper/109:34:461
1654499973,70cyclictest0-21swapper/207:10:152
1654499973,70cyclictest0-21swapper/207:10:152
248972930,3sleep0101ktimersoftd/009:45:120
1654299911,33cyclictest27959-21aten_rbpower_po11:45:290
16542998749,12cyclictest7850irq/56-dwc_otg_11:25:220
16542998749,12cyclictest7850irq/56-dwc_otg_11:25:220
1654299862,12cyclictest0-21swapper/012:35:250
1654299857,69cyclictest0-21swapper/008:50:250
1654299811,25cyclictest23095-21aten_rbpower_vo11:00:260
16542997924,5cyclictest4004-21aten_rbpower_vo09:20:270
16544997712,47cyclictest16254-21ssh12:10:272
1654299771,27cyclictest27509-21cut07:40:260
16542997620,6cyclictest29531-21fschecks_time07:45:290
1654299761,35cyclictest0-21swapper/009:10:290
118772760,2sleep30-21swapper/310:45:423
1654299751,28cyclictest3524-21ssh09:20:120
172702740,5sleep11654399cyclictest07:10:361
172702740,5sleep11654399cyclictest07:10:361
1654299741,11cyclictest19525-21grep08:45:400
1654299741,11cyclictest19525-21grep08:45:400
1654299738,10cyclictest0-21swapper/008:40:240
1654299732,5cyclictest1518-21grep07:55:410
1654299732,5cyclictest1518-21grep07:55:410
16542997323,10cyclictest6938-21kernelversion10:40:310
16542997321,39cyclictest11207-21missed_timers10:45:330
16545997212,30cyclictest7850irq/56-dwc_otg_08:05:233
16542997220,5cyclictest6352-21sh10:00:330
1654299721,25cyclictest22412-21basename10:20:250
16542997118,11cyclictest0-21swapper/007:35:260
10532710,1sleep10-21swapper/110:33:361
16544997013,34cyclictest8858-21seq11:21:262
1654299701,21cyclictest16504-21fschecks_count12:10:300
1654299699,5cyclictest101ktimersoftd/011:43:020
1654299682,23cyclictest31476-21uname07:50:320
315962670,2sleep10-21swapper/111:50:091
16542996646,5cyclictest9550irq/80-mmc008:55:200
1654499651,15cyclictest0-21swapper/207:15:232
16542996524,8cyclictest0-21swapper/008:25:210
1654499645,45cyclictest7850irq/56-dwc_otg_07:20:392
1654499641,7cyclictest20687-21ssh09:40:122
1654299647,27cyclictest0-21swapper/010:55:260
1654499622,6cyclictest7950irq/56-dwc_otg_12:35:242
1654499621,5cyclictest4945-21ssh09:20:392
1654399622,10cyclictest20925-21rm09:40:241
16543996210,15cyclictest7850irq/56-dwc_otg_09:45:251
1654299622,10cyclictest6890-21ssh11:20:120
1654499616,47cyclictest7850irq/56-dwc_otg_11:56:552
1654499616,47cyclictest7850irq/56-dwc_otg_11:56:552
1654499615,10cyclictest25732sleep211:53:492
1654499614,10cyclictest7850irq/56-dwc_otg_10:20:252
1654499612,50cyclictest0-21swapper/208:59:222
1654399616,38cyclictest7950irq/56-dwc_otg_08:25:231
1654499604,10cyclictest7850irq/56-dwc_otg_07:35:232
16544996016,41cyclictest25482-21fschecks_count09:45:312
1654499591,4cyclictest5772-21/usr/sbin/munin08:10:372
1654499591,48cyclictest0-21swapper/211:48:142
1654499591,14cyclictest7850irq/56-dwc_otg_09:52:012
1654299592,32cyclictest26887-21grep09:05:400
1654299591,33cyclictest32545-21unixbench_singl11:10:410
1654299591,24cyclictest30935-21apt11:10:110
91962580,3sleep09198-21timerandwakeup09:25:390
91962580,3sleep09198-21timerandwakeup09:25:390
1654499582,5cyclictest7750irq/56-dwc_otg11:00:262
1654499581,5cyclictest0-21swapper/208:40:372
1654299584,27cyclictest0-21swapper/012:25:250
1654299584,27cyclictest0-21swapper/012:25:250
1654299582,5cyclictest0-21swapper/009:30:370
16542995821,5cyclictest0-21swapper/009:50:230
16542995816,5cyclictest0-21swapper/012:30:250
1654499577,11cyclictest7850irq/56-dwc_otg_07:55:412
1654499577,11cyclictest7850irq/56-dwc_otg_07:55:412
1654499572,4cyclictest23142-21grep07:25:382
1654499572,12cyclictest0-21swapper/210:37:372
1654499571,13cyclictest7850irq/56-dwc_otg_09:26:452
1654499571,13cyclictest7850irq/56-dwc_otg_09:26:452
1654299577,30cyclictest17825-21modprobe10:15:120
1654499563,9cyclictest7850irq/56-dwc_otg_07:50:312
1654499562,5cyclictest22106-21grep09:40:392
1654499562,5cyclictest0-21swapper/212:35:122
1654499562,45cyclictest7850irq/56-dwc_otg_12:24:172
1654499562,16cyclictest7950irq/56-dwc_otg_07:30:252
1654499561,5cyclictest1625-21ssh09:55:292
1654499561,3cyclictest0-21swapper/208:25:122
1654499561,12cyclictest0-21swapper/209:30:492
1654299561,5cyclictest19606-21aten_rbpower_cu11:35:260
1654499555,3cyclictest7750irq/56-dwc_otg12:19:062
1654499554,10cyclictest917-21snmpd07:42:572
1654499553,12cyclictest7850irq/56-dwc_otg_11:20:122
16544995517,35cyclictest17242-21sh10:14:102
1654499551,3cyclictest0-21swapper/211:34:122
1654499551,11cyclictest7850irq/56-dwc_otg_11:11:442
1654299552,41cyclictest13-21rcuc/012:15:290
1654299552,32cyclictest0-21swapper/009:00:390
1654299552,32cyclictest0-21swapper/009:00:390
1654299551,29cyclictest8128-21fschecks_count12:00:290
1654499545,4cyclictest7750irq/56-dwc_otg11:40:352
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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