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2026-09-03 - 19:59

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #8, 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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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 rack8slot6s.osadl.org (updated Thu Sep 03, 2026 12:43:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
326679910501048,2cyclictest24653-21kworker/3:0+events08:19:343
326549910491047,2cyclictest1148-21kworker/0:0+events10:10:560
326549910481046,2cyclictest26655-21turbostat10:34:560
326679910471045,2cyclictest13869-21kworker/3:1+events12:34:363
326549910451041,4cyclictest31888-21turbostat11:14:550
326549910411039,2cyclictest4180-21turbostat12:29:560
326549910381035,3cyclictest6270-21turbostat07:29:550
326549910371036,1cyclictest3953-21kworker/0:1+events10:06:590
326679910361035,1cyclictest30820-21kworker/3:2+events08:23:293
326599910341032,2cyclictest10294-21turbostat07:39:551
326549910321031,1cyclictest15420-21kworker/0:2+events09:11:400
326549910311028,3cyclictest12369-21turbostat07:44:550
326549910271026,1cyclictest1148-21kworker/0:0+events09:28:370
326549910221021,1cyclictest19851-21kworker/0:1+events11:43:390
326679910211019,1cyclictest30820-21kworker/3:2+events08:31:283
326679910201019,1cyclictest2004-21kworker/3:2+events07:20:203
326679910201018,2cyclictest2004-21kworker/3:2+events07:59:013
326549910111010,1cyclictest19851-21kworker/0:1+events11:39:240
326549910111010,1cyclictest16301-21kworker/0:1+events09:04:210
326599910091008,1cyclictest4669-21kworker/1:1+events11:50:441
326679910041003,1cyclictest2004-21kworker/3:2+events08:03:323
326679910031002,1cyclictest11992-21kworker/3:1+events07:37:223
326679910021000,2cyclictest3442-21turbostat10:44:543
326599910021001,1cyclictest6413-21kworker/1:2+events08:52:361
326599910021000,2cyclictest13497-21turbostat12:04:541
326649910011000,1cyclictest28815-21kworker/2:1+events10:34:002
32659991000998,2cyclictest20863-21turbostat08:04:551
3265499999998,1cyclictest3953-21kworker/0:1+events11:09:250
3265499998997,1cyclictest23087-21kworker/0:0+events12:11:260
3265499998994,4cyclictest8749-21turbostat12:34:550
3265499996995,1cyclictest16301-21kworker/0:1+events09:23:390
3265499996994,2cyclictest28958-21turbostat08:24:550
3265499994993,1cyclictest1148-21kworker/0:0+events10:16:370
3266799990989,1cyclictest2004-21kworker/3:2+events07:30:213
3266499990989,1cyclictest24112-21kworker/2:1+events09:58:122
3266499990989,1cyclictest24112-21kworker/2:1+events09:58:122
3266799989988,1cyclictest8850-21kworker/3:0+events12:01:063
3266799985982,3cyclictest10708-21turbostat08:59:553
3265999980979,1cyclictest4331-21kworker/1:0+events08:40:441
3266799975971,4cyclictest8678-21turbostat11:24:543
3265499975972,3cyclictest3371-21turbostat09:34:550
3266799974970,4cyclictest31151-21turbostat09:29:553
3265999972970,1cyclictest12565-21kworker/1:0+events09:31:491
3265999969968,1cyclictest6413-21kworker/1:2+events08:57:091
3266499967965,2cyclictest13071-21kworker/2:2+events09:50:212
3265999967966,1cyclictest8459-21kworker/1:1+events08:49:471
3266799966963,3cyclictest12814-21turbostat10:19:553
3266799963962,1cyclictest11426-21kworker/3:1+events09:41:073
3266499960959,1cyclictest18406-21kworker/2:0+events09:47:552
3266499960959,1cyclictest17775-21kworker/2:2+events10:22:322
3266499960957,3cyclictest26927-21turbostat08:19:552
3265999960959,1cyclictest19126-21kworker/1:1+events08:38:421
3265999960959,1cyclictest12565-21kworker/1:0+events11:45:211
3266499956955,1cyclictest13071-21kworker/2:2+events07:42:112
3266499955954,1cyclictest18406-21kworker/2:0+events10:01:462
3266499949948,1cyclictest17775-21kworker/2:2+events10:25:412
3266799942940,2cyclictest13869-21kworker/3:1+events12:08:293
3266799939938,1cyclictest31382-21turbostat10:04:553
3266799933932,1cyclictest13869-21kworker/3:1+events12:39:143
3266799932930,2cyclictest8850-21kworker/3:0+events11:56:293
3266799922920,2cyclictest30820-21kworker/3:2+events10:35:543
3266799920919,1cyclictest11426-21kworker/3:1+events09:38:403
3266799919918,1cyclictest24653-21kworker/3:0+events08:12:323
3266799919918,1cyclictest2004-21kworker/3:2+events07:29:123
3265499919918,1cyclictest15420-21kworker/0:2+events09:17:240
3266799918917,1cyclictest32311-21kworker/3:0+events07:19:153
3266799918916,1cyclictest4025-21kworker/3:0+events11:15:423
3266799915914,1cyclictest22591-21kworker/3:1+events08:28:403
3266799914913,1cyclictest6269-21kworker/3:1+events07:10:233
3266799912911,1cyclictest2004-21kworker/3:2+events07:49:023
3265499910909,1cyclictest3953-21kworker/0:1+events10:52:130
3265499910909,1cyclictest23087-21kworker/0:0+events12:19:480
3265499909906,2cyclictest3953-21kworker/0:1+events10:59:540
3266799908907,1cyclictest2004-21kworker/3:2+events08:05:223
3265499908907,1cyclictest15420-21kworker/0:2+events09:09:250
3265499908907,1cyclictest13917-21kworker/0:0+events11:25:450
3265499904903,1cyclictest13917-21kworker/0:0+events11:30:210
3265499903902,1cyclictest3953-21kworker/0:1+events11:01:580
3266799902899,1cyclictest11992-21kworker/3:1+events07:50:223
3265499896895,1cyclictest19851-21kworker/0:1+events12:22:200
3265499894893,1cyclictest9271-21kworker/0:2+events10:49:230
3266799884881,3cyclictest27064-21turbostat11:44:553
3265499856854,2cyclictest568-21turbostat08:34:550
3265999695691,4cyclictest27064-21turbostat11:44:541
3266799693691,2cyclictest4321-21turbostat11:54:543
3265499689685,3cyclictest31382-21turbostat10:04:550
3265999675674,1cyclictest568-21turbostat08:34:551
3265499621620,1cyclictest18186-21turbostat12:09:560
3266799614610,4cyclictest26655-21turbostat10:34:553
3266799608605,3cyclictest31888-21turbostat11:14:543
3266799593592,1cyclictest12369-21turbostat07:44:553
3265999582580,2cyclictest31151-21turbostat09:29:551
3266499578576,1cyclictest10294-21turbostat07:39:552
3266499563561,2cyclictest12814-21turbostat10:19:552
3265499546545,1cyclictest3442-21turbostat10:44:540
3266799540536,4cyclictest3371-21turbostat09:34:553
3265499529527,2cyclictest10708-21turbostat08:59:550
3265999526523,3cyclictest13334-21turbostat12:39:551
3265499519516,3cyclictest8678-21turbostat11:24:540
3266499499499,0cyclictest12567-21turbostat09:44:552
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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