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2026-07-21 - 03:09

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #1, slot #6

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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  Intel
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
Compare latency of primary with shadow system
Characteristics of the 792 highest latencies:
System rack1slot6s.osadl.org (updated Tue Jul 21, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12555991034,74cyclictest28246-21fschecks_time23:20:173
12555991026,71cyclictest0-21swapper/322:05:343
12555991015,88cyclictest1227-21runrttasks20:54:373
12555991014,90cyclictest11536-21wc21:15:363
1255599994,73cyclictest21485-21df_abs23:10:153
1255199994,45cyclictest0-21swapper/023:49:490
1255599984,68cyclictest22948-21latency_hist21:35:043
1255199973,87cyclictest0-21swapper/021:40:200
1255599964,74cyclictest0-21swapper/321:02:233
12555999626,44cyclictest1227-21runrttasks23:30:453
12551999522,12cyclictest0-21swapper/019:45:070
1255599944,84cyclictest0-21swapper/321:50:233
1255599944,71cyclictest9827-21fschecks_time19:20:263
1255599944,71cyclictest9827-21fschecks_time19:20:263
1255599934,83cyclictest0-21swapper/321:45:373
1255599934,67cyclictest0-21swapper/322:00:363
1255599934,64cyclictest29270-21ssh20:55:183
1255199934,40cyclictest0-21swapper/021:48:340
1255599925,67cyclictest0-21swapper/320:40:063
1255599924,70cyclictest16717-21chrt22:14:453
1255599924,67cyclictest0-21swapper/322:55:203
12555999210,63cyclictest0-21swapper/322:52:473
1255199923,42cyclictest0-21swapper/022:00:290
12551999217,13cyclictest0-21swapper/021:55:180
1255599914,63cyclictest19342-21cpuspeed_turbos20:40:203
1255599913,62cyclictest11627-21ls23:44:593
12551999131,9cyclictest11903-21sadc20:30:050
1255599909,50cyclictest0-21swapper/320:21:303
1255599905,60cyclictest23744-21ntp_kernel_pll_20:45:353
1255599904,65cyclictest0-21swapper/323:38:013
1255599904,62cyclictest0-21swapper/320:30:233
12555999020,52cyclictest0-21swapper/322:15:143
1255599894,67cyclictest0-21swapper/322:45:313
1255599894,67cyclictest0-21swapper/322:45:313
1255599893,54cyclictest13081-21cpuspeed_turbos18:20:243
1255199893,12cyclictest0-21swapper/023:00:380
1255599885,62cyclictest0-21swapper/322:29:103
1255599884,63cyclictest0-21swapper/320:25:233
1255599883,63cyclictest0-21swapper/323:00:203
12555998812,53cyclictest2385-21ssh22:40:253
12551998822,13cyclictest0-21swapper/020:55:400
12551998821,12cyclictest0-21swapper/018:50:100
1255599875,65cyclictest0-21swapper/323:26:033
1255599875,65cyclictest0-21swapper/323:26:033
1255599874,76cyclictest29102-21gltestperf20:00:273
1255599874,61cyclictest0-21swapper/321:28:273
1255599874,61cyclictest0-21swapper/321:28:273
1255599873,61cyclictest31893-21sort22:35:343
1255599873,61cyclictest0-21swapper/321:35:283
1255599873,11cyclictest0-21swapper/319:56:363
12555998716,52cyclictest0-21swapper/322:20:293
1255599865,57cyclictest0-21swapper/323:05:473
1255599864,64cyclictest0-21swapper/321:11:403
1255599864,56cyclictest0-21swapper/321:43:233
1255199864,22cyclictest0-21swapper/023:30:190
1255599856,63cyclictest0-21swapper/321:10:023
1255599855,59cyclictest0-21swapper/323:15:233
1255599855,59cyclictest0-21swapper/321:57:063
1255599854,75cyclictest0-21swapper/322:31:063
1255599854,75cyclictest0-21swapper/321:20:253
1255599854,66cyclictest0-21swapper/323:45:333
1255599854,56cyclictest0-21swapper/318:25:233
1255199853,41cyclictest0-21swapper/022:44:050
12551998527,13cyclictest0-21swapper/021:00:290
12551998519,13cyclictest0-21swapper/022:20:240
1255599845,72cyclictest0-21swapper/319:45:343
1255599844,73cyclictest0-21swapper/319:30:383
12551998430,14cyclictest0-21swapper/022:05:200
12551998421,12cyclictest0-21swapper/022:45:300
12551998421,12cyclictest0-21swapper/022:45:300
1255599836,62cyclictest0-21swapper/319:00:223
1255599824,57cyclictest0-21swapper/320:10:063
1255599824,54cyclictest0-21swapper/319:15:213
1255599815,61cyclictest0-21swapper/319:15:093
1255599815,58cyclictest0-21swapper/320:20:073
1255599814,44cyclictest0-21swapper/319:30:083
12551998122,12cyclictest0-21swapper/019:05:310
1255599804,56cyclictest1388-21runrttasks20:10:253
1255599804,55cyclictest17917-21cpuspeed_turbos18:30:243
1255599804,54cyclictest20498-21yum19:40:423
1255599804,53cyclictest0-21swapper/318:40:443
12555998010,51cyclictest0-21swapper/319:00:083
1255599799,48cyclictest7150irq/45-ahci19:35:403
1255599784,52cyclictest0-21swapper/318:50:223
1255599784,45cyclictest0-21swapper/319:50:183
1255199783,32cyclictest0-21swapper/023:35:040
12555997635,34cyclictest25386-21sort18:45:283
1255599755,48cyclictest0-21swapper/318:35:233
1255599755,48cyclictest0-21swapper/318:35:233
1255599754,61cyclictest2835-21gltestperf19:05:283
1255599725,58cyclictest0-21swapper/318:20:113
12554996923,39cyclictest8873-21aten_r1power_po20:25:182
12554996921,41cyclictest8793-21timerandwakeup22:00:362
164582680,3sleep116471-21munin-node21:25:141
164582680,3sleep116471-21munin-node21:25:141
12554996821,38cyclictest29355-21head23:20:342
12554996716,45cyclictest0-21swapper/221:00:172
12554996710,50cyclictest0-21swapper/222:38:192
12554996614,33cyclictest0-21swapper/222:31:512
219499650,4rtkit-daemon2193-21rtkit-daemon23:11:191
12554996520,38cyclictest15833-21ps23:00:312
12554996518,40cyclictest289961ssh20:55:152
12554996514,45cyclictest0-21swapper/223:30:032
12554996514,43cyclictest0-21swapper/220:42:122
12554996513,32cyclictest0-21swapper/221:59:352
12554996511,46cyclictest0-21swapper/222:42:222
12554996510,18cyclictest13696-21sh20:30:382
219499640,4rtkit-daemon2193-21rtkit-daemon23:05:561
1255499649,48cyclictest0-21swapper/221:39:192
12554996420,37cyclictest5103-21ssh23:35:072
12554996417,39cyclictest1124-21snmpd19:16:452
12554996416,29cyclictest23257-21ssh23:12:092
12554996413,33cyclictest0-21swapper/222:27:572
1255399643,44cyclictest0-21swapper/118:50:401
12554996316,40cyclictest0-21swapper/219:20:212
12554996316,40cyclictest0-21swapper/219:20:212
12554996313,44cyclictest0-21swapper/222:20:332
219499620,4rtkit-daemon2193-21rtkit-daemon23:36:101
12554996216,41cyclictest0-21swapper/220:35:162
12554996215,41cyclictest1099-21grep21:50:212
12554996215,40cyclictest17654-21munin-node23:05:152
12554996215,40cyclictest0-21swapper/220:50:222
12554996214,41cyclictest11699-21munin-node23:45:262
12554996213,42cyclictest4117-21munin-plugin-st19:10:082
12554996213,42cyclictest14617-21grep22:10:232
12554996213,42cyclictest0-21swapper/220:45:092
12554996210,44cyclictest0-21swapper/221:18:122
1255499616,48cyclictest0-21swapper/220:24:202
12554996120,35cyclictest20082-21munin-run22:20:012
12554996119,35cyclictest1227-21runrttasks22:57:432
12554996118,36cyclictest8278-21timerwakeupswit21:10:382
12554996116,39cyclictest7503-21ssh22:49:562
12554996116,39cyclictest7503-21ssh22:49:562
12554996114,29cyclictest0-21swapper/221:05:362
12554996114,20cyclictest0-21swapper/219:10:202
12554996110,45cyclictest0-21swapper/221:25:142
12554996110,45cyclictest0-21swapper/221:25:142
12553996120,22cyclictest23874-21processes20:45:371
12551996123,31cyclictest0-21swapper/020:45:190
12554996021,33cyclictest1227-21runrttasks21:30:242
12554996018,36cyclictest31173-21cat21:45:352
12554996016,37cyclictest19956-21aten2.4-expect18:35:232
12554996016,37cyclictest19956-21aten2.4-expect18:35:232
12554996012,42cyclictest0-21swapper/220:00:082
12554996012,40cyclictest107042chrt22:05:172
12554996011,43cyclictest5287-21diskmemload22:54:442
12553996019,24cyclictest23637-21proc_pri18:40:391
219499590,4rtkit-daemon2193-21rtkit-daemon23:27:111
219499590,4rtkit-daemon2193-21rtkit-daemon23:27:111
12554995915,38cyclictest0-21swapper/223:15:182
12554995915,38cyclictest0-21swapper/221:22:092
12554995914,38cyclictest1227-21runrttasks19:32:582
12554995913,32cyclictest0-21swapper/221:40:172
12554995814,29cyclictest22525-21smartctl19:45:402
12554995812,30cyclictest0-21swapper/223:43:172
12554995811,40cyclictest0-21swapper/218:55:292
1255399588,13cyclictest791-21yum-updatesd-he21:00:291
261752577,42sleep00-21swapper/020:50:220
12554995716,11cyclictest32635-21grep23:25:332
12554995716,11cyclictest32635-21grep23:25:332
12554995714,27cyclictest0-21swapper/219:40:212
1255399574,14cyclictest0-21swapper/123:15:171
1255399574,13cyclictest0-21swapper/123:00:291
1255399574,12cyclictest0-21swapper/122:30:361
1255199574,46cyclictest0-21swapper/022:10:260
1255199574,46cyclictest0-21swapper/020:30:490
1138425710,37sleep20-21swapper/218:15:322
12554995611,32cyclictest0-21swapper/220:00:202
1255399565,32cyclictest0-21swapper/119:00:081
1255399565,14cyclictest0-21swapper/121:42:111
1255199564,45cyclictest0-21swapper/023:10:330
12551995618,14cyclictest0-21swapper/023:44:580
12554995510,39cyclictest0-21swapper/218:40:222
1255399559,10cyclictest5458-21hwlatdetect22:45:211
1255399559,10cyclictest5458-21hwlatdetect22:45:211
1255399554,13cyclictest0-21swapper/123:30:461
1255399554,12cyclictest0-21swapper/119:40:231
1255399554,11cyclictest2609-21proc_pri22:40:291
1255199554,44cyclictest0-21swapper/021:30:350
1255199554,43cyclictest0-21swapper/021:50:310
1255199553,45cyclictest0-21swapper/021:15:340
1255199553,45cyclictest0-21swapper/021:05:240
219499540,5rtkit-daemon2193-21rtkit-daemon23:20:561
187412543,43sleep00-21swapper/018:30:360
12554995413,33cyclictest30623-21munin-node20:05:182
1255399544,14cyclictest0-21swapper/122:14:491
1255399544,13cyclictest0-21swapper/122:05:091
1255399544,13cyclictest0-21swapper/121:52:181
12553995426,13cyclictest0-21swapper/120:54:261
12553995422,13cyclictest0-21swapper/121:55:251
1255199545,43cyclictest0-21swapper/021:26:240
1255199545,43cyclictest0-21swapper/021:26:240
1255199544,43cyclictest0-21swapper/022:30:330
12551995437,11cyclictest15933-21cpuspeed_turbos20:35:200
12551995430,8cyclictest24287-21ssh21:35:290
12554995336,12cyclictest3491-21cpuspeed_turbos20:15:212
1255399534,44cyclictest0-21swapper/120:28:321
1255399534,41cyclictest0-21swapper/121:10:261
1255399534,13cyclictest0-21swapper/123:49:531
1255399534,13cyclictest0-21swapper/121:21:521
12553995339,9cyclictest23887-21grep21:35:231
12553995315,23cyclictest30398-21processes20:55:331
1255199533,38cyclictest0-21swapper/020:24:020
1255199533,11cyclictest0-21swapper/023:20:150
175572523,8sleep117580-21cat19:35:341
1255499524,34cyclictest0-21swapper/218:30:322
12554995220,25cyclictest27242-21aten_r1power_vo18:50:232
12554995213,25cyclictest16303-21munin-node19:35:362
1255399525,29cyclictest0-21swapper/121:30:361
1255399525,16cyclictest0-21swapper/120:45:051
1255399525,14cyclictest0-21swapper/121:48:451
1255399524,33cyclictest0-21swapper/122:02:461
1255399524,29cyclictest0-21swapper/120:00:421
1255399524,28cyclictest0-21swapper/119:00:371
12553995238,9cyclictest26185-21cpuspeed_turbos19:55:211
12553995220,13cyclictest0-21swapper/119:10:271
12551995228,10cyclictest5287-21diskmemload23:19:530
25072513,10sleep10-21swapper/120:10:411
231392513,10sleep10-21swapper/119:49:041
224482513,42sleep10-21swapper/122:21:291
195362510,12sleep01255199cyclictest20:40:220
1255499518,37cyclictest2907-21idleruntime-cro20:15:062
1255499513,29cyclictest0-21swapper/219:05:092
12554995129,15cyclictest15485-21tr18:25:262
12554995113,14cyclictest0-21swapper/219:25:322
1255399515,28cyclictest0-21swapper/120:30:341
1255399515,27cyclictest0-21swapper/122:55:181
1255399514,29cyclictest0-21swapper/121:15:221
1255399513,33cyclictest4430-21sed21:05:291
12553995123,11cyclictest0-21swapper/122:36:291
12553995121,10cyclictest7017-21ssh20:20:381
12553995120,13cyclictest0-21swapper/122:26:151
12553995119,14cyclictest0-21swapper/123:41:171
12553995119,13cyclictest0-21swapper/120:37:161
12553995119,12cyclictest0-21swapper/119:25:281
12553995118,18cyclictest0-21swapper/118:30:411
1255199514,41cyclictest0-21swapper/023:05:170
1255199513,42cyclictest0-21swapper/021:21:260
12551995128,8cyclictest7171-21ssh21:10:210
12551995117,22cyclictest5287-21diskmemload22:16:540
12551995115,30cyclictest24248-21awk22:25:190
77672506,37sleep00-21swapper/022:50:060
51802503,10sleep10-21swapper/120:18:511
12554995021,23cyclictest26324-21timerwakeupswit18:45:432
1255399505,27cyclictest0-21swapper/119:50:361
1255399505,27cyclictest0-21swapper/119:20:371
1255399505,27cyclictest0-21swapper/119:20:371
12553995030,14cyclictest0-21swapper/122:15:381
12553995013,10cyclictest0-21swapper/119:30:331
12551995037,8cyclictest7461-21tune2fs19:15:270
12551995023,12cyclictest0-21swapper/023:27:230
12551995023,12cyclictest0-21swapper/023:27:230
1255399495,27cyclictest0-21swapper/122:51:151
1255399494,27cyclictest0-21swapper/120:09:211
1255399494,27cyclictest0-21swapper/119:17:221
1255399494,27cyclictest0-21swapper/119:05:391
1255399494,25cyclictest0-21swapper/118:46:411
12553994932,11cyclictest16041-21cut18:25:311
12553994921,8cyclictest15098-21cat18:25:111
12551994921,12cyclictest0-21swapper/019:00:450
12551994920,13cyclictest0-21swapper/018:25:360
123252492,41sleep012434-21wget19:25:300
12554994813,26cyclictest0-21swapper/219:50:292
1255199485,36cyclictest0-21swapper/019:45:380
12551994826,10cyclictest0-21swapper/019:53:080
12551994822,11cyclictest0-21swapper/020:05:300
12551994819,13cyclictest0-21swapper/022:55:130
1255499474,37cyclictest0-21swapper/218:20:232
1255399474,25cyclictest0-21swapper/118:38:241
1255399474,25cyclictest0-21swapper/118:38:241
12551994719,12cyclictest0-21swapper/019:35:320
12551994718,12cyclictest0-21swapper/019:10:400
294602462,37sleep00-21swapper/018:55:150
1255199464,36cyclictest0-21swapper/022:35:340
1255199463,37cyclictest0-21swapper/020:00:290
1255199463,25cyclictest0-21swapper/018:40:350
12551994623,10cyclictest27086-21munin-node18:50:330
1255199453,37cyclictest0-21swapper/020:16:200
1255199453,37cyclictest0-21swapper/019:57:400
12551994518,12cyclictest0-21swapper/018:35:350
12551994518,12cyclictest0-21swapper/018:35:350
1255199443,36cyclictest0-21swapper/019:30:220
12551994423,8cyclictest15003-21taskset18:25:110
12551994417,12cyclictest0-21swapper/019:20:300
12551994417,12cyclictest0-21swapper/019:20:300
1255399433,32cyclictest0-21swapper/118:20:111
1255199433,34cyclictest0-21swapper/020:10:350
121702426,29sleep00-21swapper/018:15:420
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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