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2026-07-05 - 03:25

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 Sun Jul 05, 2026 00:43:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2651921800,5sleep31377799cyclictest22:28:393
1670621120,2sleep00-21swapper/022:55:330
1375999966,74cyclictest0-21swapper/021:55:260
70122860,7sleep11376599cyclictest00:01:371
23422770,3sleep10-21swapper/100:35:311
23422770,3sleep10-21swapper/100:35:311
121522743,11sleep00-21swapper/019:05:290
121522743,11sleep00-21swapper/019:05:290
1375999727,30cyclictest0-21swapper/020:20:260
102742690,1sleep20-21swapper/222:09:212
26522680,1sleep30-21swapper/322:38:573
303772630,2sleep20-21swapper/223:50:392
1375999612,41cyclictest0-21swapper/000:20:230
1375999612,41cyclictest0-21swapper/000:20:230
13759996043,3cyclictest0-21swapper/022:05:230
13759996035,10cyclictest15019-21grep19:10:390
13759995937,4cyclictest19151-21ssh23:37:250
13759995937,10cyclictest101ktimersoftd/023:25:340
13759995921,23cyclictest13849-21latency_hist21:35:130
13759995836,10cyclictest101ktimersoftd/021:17:530
1375999582,47cyclictest0-21swapper/020:45:230
313962570,2sleep30-21swapper/323:52:053
1375999578,28cyclictest3402-21ls20:10:280
1375999574,8cyclictest0-21swapper/000:05:250
13759995738,5cyclictest0-21swapper/021:05:250
13759995726,8cyclictest0-21swapper/000:35:140
13759995726,8cyclictest0-21swapper/000:35:140
13759995713,36cyclictest0-21swapper/021:25:330
13759995713,36cyclictest0-21swapper/021:25:330
13759995637,9cyclictest101ktimersoftd/022:20:270
13759995631,12cyclictest0-21swapper/021:40:240
1375999562,29cyclictest5650-21grep23:20:400
1375999561,28cyclictest0-21swapper/019:30:130
13759995536,11cyclictest0-21swapper/019:49:400
140882540,2sleep30-21swapper/320:40:253
13759995437,3cyclictest0-21swapper/023:15:330
13759995434,9cyclictest32109-21aten_rbpower_vo22:35:270
13759995433,7cyclictest101ktimersoftd/000:15:320
13759995430,11cyclictest101ktimersoftd/022:00:310
13759995430,10cyclictest0-21swapper/019:20:250
1375999536,24cyclictest9-21ksoftirqd/023:40:130
1375999531,37cyclictest14711-21/usr/sbin/munin20:40:330
1375999531,27cyclictest12065-21latency_hist20:35:120
1376599526,12cyclictest7950irq/56-dwc_otg_22:30:271
1376599526,12cyclictest7950irq/56-dwc_otg_22:30:271
13765995213,28cyclictest0-21swapper/122:10:251
13759995240,4cyclictest101ktimersoftd/022:50:130
13759995231,7cyclictest29791-21grep23:10:390
13759995230,6cyclictest23098-21cut19:35:260
13759995230,12cyclictest24125-21ssh21:45:590
1375999522,7cyclictest18025-21munin-run21:40:120
1375999522,39cyclictest25284-21sort21:10:310
1375999521,29cyclictest2348-21sed21:20:400
66462510,5sleep31377799cyclictest22:43:413
1376599512,11cyclictest32736-21ssh23:15:261
13765995114,18cyclictest14275-21ssh00:10:361
13759995133,5cyclictest25902-21grep19:40:400
13759995133,5cyclictest25902-21grep19:40:400
13759995132,4cyclictest988-21sh23:55:220
13759995132,11cyclictest101ktimersoftd/022:32:300
13759995132,11cyclictest101ktimersoftd/022:32:300
13759995129,12cyclictest0-21swapper/000:30:410
1376599509,6cyclictest8050irq/56-dwc_otg_20:50:251
13765995016,4cyclictest8050irq/56-dwc_otg_21:40:251
13759995037,5cyclictest0-21swapper/022:50:260
1375999502,27cyclictest0-21swapper/022:20:140
1375999502,27cyclictest0-21swapper/022:20:140
1375999501,45cyclictest101ktimersoftd/020:05:400
1375999496,40cyclictest0-21swapper/020:15:250
13759994937,5cyclictest19728-21cut20:55:310
1375999493,43cyclictest31556-21ssh23:52:210
13759994929,12cyclictest7850irq/56-dwc_otg22:15:130
13759994921,7cyclictest7950irq/56-dwc_otg_20:00:120
13759994918,21cyclictest0-21swapper/000:01:590
13759994917,23cyclictest0-21swapper/020:50:380
1376599485,30cyclictest0-21swapper/120:45:231
13765994821,8cyclictest8050irq/56-dwc_otg_21:57:241
1376599481,27cyclictest0-21swapper/122:55:141
13759994831,4cyclictest23832-21fschecks_count22:25:290
13759994828,6cyclictest7850irq/56-dwc_otg21:05:130
13759994826,8cyclictest0-21swapper/023:04:380
13759994821,5cyclictest7950irq/56-dwc_otg_22:41:330
1375999481,38cyclictest16081-21ssh00:13:010
1375999481,33cyclictest16087-21awk19:15:310
1375999481,28cyclictest25988-21aten_rbpower_en00:25:270
1375999481,23cyclictest25619-21ssh23:45:310
1376599479,4cyclictest0-21swapper/100:15:311
13765994723,8cyclictest8050irq/56-dwc_otg_23:55:271
13765994722,8cyclictest7850irq/56-dwc_otg23:40:231
13765994719,13cyclictest221ktimersoftd/121:15:281
1375999472,28cyclictest0-21swapper/020:00:240
13759994719,21cyclictest0-21swapper/023:07:580
270152460,3sleep121-21rcuc/123:46:401
1377199463,7cyclictest31-21ksoftirqd/221:15:252
13759994630,3cyclictest0-21swapper/021:50:310
13759994628,10cyclictest101ktimersoftd/019:55:130
1376599456,13cyclictest9008-21ssh23:25:311
13765994520,9cyclictest7850irq/56-dwc_otg00:06:491
13765994520,5cyclictest7850irq/56-dwc_otg00:30:121
13765994520,12cyclictest7950irq/56-dwc_otg_23:10:261
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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