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2025-11-22 - 15:17
OSADL QA Farm

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #0, slot #5

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 rack0slot5.osadl.org (updated Sat Nov 22, 2025 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
204907699737315,421cyclictest0-21swapper/900:02:3315
204910199728727,1cyclictest0-21swapper/1423:06:316
204905199690293,395cyclictest0-21swapper/219:31:328
204905199690293,395cyclictest0-21swapper/219:31:328
20490629956511,553cyclictest0-21swapper/520:55:4711
20490589956140,520cyclictest0-21swapper/422:03:4710
20490629954226,515cyclictest0-21swapper/522:17:4711
20490629954226,515cyclictest0-21swapper/522:17:4711
204905899539538,1cyclictest2185350-21kworker/4:1+i915-unordered21:52:4710
20490469953414,519cyclictest0-21swapper/121:13:471
204904699524522,2cyclictest2234651-21kworker/1:2+i915-unordered00:00:471
20490589951525,490cyclictest0-21swapper/422:15:4710
20490589951525,490cyclictest0-21swapper/422:15:4710
204905599513510,3cyclictest0-21swapper/321:30:479
2049046995069,497cyclictest0-21swapper/123:25:471
204906299504503,1cyclictest2226475-21kworker/5:0+i915-unordered23:16:4711
204909399489488,1cyclictest2181416-21kworker/12:1+i915-unordered22:03:474
204906299489489,0cyclictest0-21swapper/522:02:4711
204905899486486,0cyclictest2226557-21kworker/4:0+i915-unordered23:08:4710
204906599482481,1cyclictest2115322-21kworker/6:1+i915-unordered20:22:4712
204906299482482,0cyclictest2083450-21kworker/5:1+i915-unordered20:11:4711
204909799477475,1cyclictest2115465-21kworker/13:0+i915-unordered20:55:475
204906599470440,30cyclictest0-21swapper/621:00:4712
20491019946216,29cyclictest0-21swapper/1422:35:476
20490629946116,30cyclictest0-21swapper/521:43:4711
2049058994617,58cyclictest0-21swapper/423:19:4210
2049055994548,29cyclictest0-21swapper/321:07:479
204909799453451,2cyclictest2197747-21kworker/13:1+i915-unordered22:17:475
204909799453451,2cyclictest2197747-21kworker/13:1+i915-unordered22:17:475
204907699453452,1cyclictest2140220-21kworker/9:0+i915-unordered21:13:4715
20490709945310,30cyclictest0-21swapper/721:04:0913
2049070994510,447cyclictest0-21swapper/721:12:5913
20490559944922,30cyclictest0-21swapper/322:13:479
20490559944922,30cyclictest0-21swapper/322:13:479
204909799447447,0cyclictest2107088-21kworker/13:2+i915-unordered20:15:475
204910199446416,30cyclictest0-21swapper/1420:22:476
204909399444444,0cyclictest2205973-21kworker/12:2+i915-unordered22:15:474
204909399444444,0cyclictest2205973-21kworker/12:2+i915-unordered22:15:474
20490849944423,420cyclictest0-21swapper/1022:35:312
20490589944425,419cyclictest0-21swapper/420:50:0810
2049051994440,443cyclictest0-21swapper/221:50:478
20490849944324,417cyclictest0-21swapper/1020:53:472
20490659944324,418cyclictest0-21swapper/622:33:4712
204905199443443,0cyclictest0-21swapper/200:05:478
20491049944224,417cyclictest0-21swapper/1521:10:477
20490659944224,417cyclictest0-21swapper/622:37:4712
20490629944121,420cyclictest0-21swapper/521:10:0911
20490849944018,421cyclictest0-21swapper/1021:33:082
204907699440440,0cyclictest0-21swapper/900:27:4715
20490849943919,420cyclictest0-21swapper/1022:05:332
20490709943923,416cyclictest0-21swapper/723:15:4613
204909399438437,1cyclictest0-21swapper/1221:52:474
20490589943817,421cyclictest0-21swapper/422:45:1010
20491019943713,30cyclictest0-21swapper/1400:11:466
20490769943723,414cyclictest0-21swapper/923:20:4615
20490709943718,418cyclictest0-21swapper/723:21:4613
20490589943720,417cyclictest0-21swapper/421:40:3110
204910199436435,1cyclictest2148304-21kworker/14:1+i915-unordered21:00:476
204908899436435,1cyclictest0-21swapper/1123:35:103
20490849943615,418cyclictest0-21swapper/1023:00:082
20490769943621,414cyclictest0-21swapper/900:33:4615
20490589943617,416cyclictest0-21swapper/422:40:1010
20490589943616,419cyclictest0-21swapper/400:08:0910
20490439943613,30cyclictest0-21swapper/022:21:470
20490439943613,30cyclictest0-21swapper/022:21:470
204905199435432,2cyclictest2065361-21kworker/u64:4+events_unbound20:20:478
20490979943416,416cyclictest0-21swapper/1322:27:475
20490939943416,417cyclictest0-21swapper/1221:37:474
20490709943311,30cyclictest0-21swapper/722:07:3113
20490709943310,30cyclictest0-21swapper/719:50:3113
20490629943315,417cyclictest0-21swapper/521:01:3311
20490629943313,420cyclictest0-21swapper/522:12:3111
20490629943313,420cyclictest0-21swapper/522:12:3111
20490589943310,30cyclictest0-21swapper/419:34:4210
20490589943310,30cyclictest0-21swapper/419:34:4210
20490709943215,416cyclictest0-21swapper/720:41:4713
204908899431430,1cyclictest0-21swapper/1100:15:223
20490629943112,419cyclictest0-21swapper/523:42:3011
20490769943013,416cyclictest0-21swapper/923:18:4615
20490629943015,415cyclictest0-21swapper/521:36:3011
20490629943014,416cyclictest0-21swapper/522:58:0911
2049058994309,420cyclictest0-21swapper/421:56:1010
2049058994308,419cyclictest0-21swapper/422:59:0810
2049046994309,420cyclictest0-21swapper/122:29:331
20491019942913,416cyclictest0-21swapper/1421:25:476
204908499429426,3cyclictest0-21swapper/1021:28:412
2049046994297,421cyclictest0-21swapper/121:18:091
20490979942814,414cyclictest0-21swapper/1323:11:475
20490629942811,417cyclictest0-21swapper/520:42:3211
2049058994286,421cyclictest0-21swapper/423:11:1010
20490629942710,417cyclictest0-21swapper/521:05:0811
20490519942711,415cyclictest0-21swapper/222:42:478
2049043994272,30cyclictest0-21swapper/019:30:470
2049043994272,30cyclictest0-21swapper/019:30:470
2049097994265,28cyclictest0-21swapper/1320:21:475
2049076994268,417cyclictest0-21swapper/920:42:4715
204907699426426,0cyclictest2262053-21kworker/9:2+i915-unordered23:25:4715
204909799425423,2cyclictest0-21swapper/1323:42:475
2049093994237,413cyclictest0-21swapper/1223:58:464
204907699423419,3cyclictest3682525-21snmpd21:22:5915
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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