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2026-07-19 - 23:48
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 Sun Jul 19, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
26571889955634,521cyclictest0-21swapper/723:38:1113
26571889955028,521cyclictest0-21swapper/720:07:1113
265719599549548,1cyclictest2802205-21kworker/9:2+i915-unordered22:27:1115
265719599549548,1cyclictest2802205-21kworker/9:2+i915-unordered22:27:1115
265718899548547,1cyclictest2694078-21kworker/7:0+i915-unordered19:49:1113
26572189954011,528cyclictest0-21swapper/1422:17:116
26572189954011,528cyclictest0-21swapper/1422:17:116
26572189952710,513cyclictest0-21swapper/1421:45:116
265721099505503,1cyclictest2726604-21kworker/12:0+i915-unordered20:30:114
265718599500498,2cyclictest2778956-21kworker/6:1+i915-unordered21:45:1112
265721099491490,0cyclictest2867304-21kworker/12:0+i915-unordered23:57:114
265721099474473,1cyclictest0-21swapper/1200:13:114
265722099472472,0cyclictest0-21swapper/1520:40:117
26571819947126,29cyclictest0-21swapper/500:26:0611
265718599468467,1cyclictest2811165-21kworker/6:0+i915-unordered22:17:1112
265718599468467,1cyclictest2811165-21kworker/6:0+i915-unordered22:17:1112
265722099467466,1cyclictest0-21swapper/1500:03:117
265717199467465,2cyclictest0-21swapper/200:03:118
265721899465464,1cyclictest0-21swapper/1420:17:116
265717199464463,1cyclictest0-21swapper/223:30:118
26571739946315,29cyclictest0-21swapper/322:01:349
265722099461459,2cyclictest2879335-21kworker/15:2+i915-unordered23:38:117
265718599460458,1cyclictest1818-21snmpd21:58:2212
265717699459458,1cyclictest2903694-21kworker/4:1+i915-unordered00:13:1110
2657171994580,457cyclictest0-21swapper/220:40:118
265717699457457,0cyclictest0-21swapper/420:30:1110
265722099456454,2cyclictest2694106-21kworker/15:2+i915-unordered20:07:117
265719299455453,2cyclictest1818-21snmpd20:40:0814
2657181994557,29cyclictest0-21swapper/523:31:3211
265717199455451,4cyclictest1818-21snmpd21:25:068
265717199454454,0cyclictest0-21swapper/220:30:118
265722099453453,0cyclictest0-21swapper/1520:18:117
265721499452422,30cyclictest0-21swapper/1323:28:115
2657210994527,29cyclictest0-21swapper/1221:54:114
2657173994523,30cyclictest0-21swapper/323:29:569
2657166994505,12cyclictest0-21swapper/120:44:111
26571819944928,420cyclictest0-21swapper/520:24:5511
2657173994490,28cyclictest0-21swapper/320:49:349
2657210994471,445cyclictest133-21ksoftirqd/1223:44:114
2657173994472,29cyclictest0-21swapper/319:52:569
2657171994479,437cyclictest0-21swapper/222:52:118
265717699446445,1cyclictest0-21swapper/423:17:1110
26572209944424,29cyclictest0-21swapper/1519:53:117
26572209944423,30cyclictest0-21swapper/1519:47:117
265720099444443,1cyclictest69750irq/159-i91500:03:112
265717699444444,0cyclictest0-21swapper/423:57:1110
2657171994443,440cyclictest0-21swapper/223:17:118
26572109944216,425cyclictest133-21ksoftirqd/1219:15:114
26571959944224,417cyclictest0-21swapper/923:31:5215
26571959944223,418cyclictest0-21swapper/922:19:3215
26571959944223,418cyclictest0-21swapper/922:19:3215
26571959944223,418cyclictest0-21swapper/919:41:5515
26571959944223,418cyclictest0-21swapper/919:41:5515
265722099441441,0cyclictest2795113-21kworker/15:1+pm21:58:227
265720099441441,0cyclictest69750irq/159-i91523:30:112
26571769944121,29cyclictest0-21swapper/423:50:1110
265717199441441,0cyclictest0-21swapper/223:57:118
26571669944122,418cyclictest0-21swapper/122:07:111
26571959944022,417cyclictest0-21swapper/923:22:3215
26571889944017,419cyclictest0-21swapper/720:01:3313
26571629944018,419cyclictest0-21swapper/022:36:340
26571769943926,412cyclictest0-21swapper/422:40:1110
26571959943819,418cyclictest0-21swapper/920:04:3415
26571739943819,418cyclictest0-21swapper/321:23:339
26571889943721,415cyclictest0-21swapper/722:16:3213
26571889943721,415cyclictest0-21swapper/722:16:3213
26572189943616,419cyclictest0-21swapper/1420:06:576
26571889943620,415cyclictest0-21swapper/722:29:5413
26571889943620,415cyclictest0-21swapper/722:29:5413
26571889943619,416cyclictest0-21swapper/722:49:5713
26571889943619,416cyclictest0-21swapper/722:32:3413
26571889943619,416cyclictest0-21swapper/719:32:5613
26571889943619,416cyclictest0-21swapper/719:32:5613
26571889943618,417cyclictest0-21swapper/720:25:5613
265717199436435,1cyclictest0-21swapper/221:45:118
26572209943517,417cyclictest0-21swapper/1520:16:077
265720099435435,0cyclictest69750irq/159-i91520:40:112
26571889943516,418cyclictest0-21swapper/721:03:3213
26571889943514,419cyclictest0-21swapper/723:26:3313
26571769943519,415cyclictest0-21swapper/421:14:1110
26571739943513,421cyclictest0-21swapper/321:34:329
265717199435434,1cyclictest0-21swapper/222:17:118
265717199435434,1cyclictest0-21swapper/222:17:118
26572189943414,419cyclictest0-21swapper/1420:11:546
26572189943413,420cyclictest0-21swapper/1422:50:556
26572189943413,420cyclictest0-21swapper/1421:18:556
26571959943412,419cyclictest0-21swapper/921:01:5715
26571819943414,419cyclictest0-21swapper/521:11:3411
26571769943420,413cyclictest0-21swapper/421:50:1110
26571769943413,30cyclictest0-21swapper/423:41:0710
2657173994345,30cyclictest0-21swapper/320:13:349
265721899433430,2cyclictest2891396-21kworker/u64:0+events_unbound00:12:116
26572189943313,419cyclictest0-21swapper/1421:34:546
26572189943312,420cyclictest0-21swapper/1421:58:546
26572109943313,419cyclictest0-21swapper/1222:04:544
265720099433432,1cyclictest69750irq/159-i91520:30:112
26571959943314,418cyclictest0-21swapper/919:55:5715
26571959943312,420cyclictest0-21swapper/919:50:5315
26571959943312,419cyclictest0-21swapper/920:39:5615
2657188994334,30cyclictest0-21swapper/722:04:3313
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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