OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #0, slot #6

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 rack0slot6.osadl.org (updated Fri Feb 28, 2025 00:46:43)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
566949	99	534	36,498	cyclictest	0	-21	swapper/7	21:50:44	13
566930	99	530	15,45	cyclictest	0	-21	swapper/2	21:28:56	8
566930	99	530	15,45	cyclictest	0	-21	swapper/2	21:28:56	8
566969	99	524	98,425	cyclictest	778100	-21	kworker/12:1+i915-unordered	00:14:23	4
566935	99	523	24,498	cyclictest	0	-21	swapper/3	19:40:20	9
566980	99	520	21,499	cyclictest	0	-21	swapper/15	22:21:23	7
566930	99	519	21,498	cyclictest	0	-21	swapper/2	21:36:44	8
566945	99	515	15,499	cyclictest	0	-21	swapper/6	20:46:43	12
566969	99	512	5,506	cyclictest	0	-21	swapper/12	21:57:21	4
566980	99	511	15,496	cyclictest	0	-21	swapper/15	19:35:21	7
566980	99	503	35,468	cyclictest	0	-21	swapper/15	22:19:23	7
566969	99	501	33,467	cyclictest	132	-21	ksoftirqd/12	21:23:42	4
566951	99	501	33,0	cyclictest	0	-21	swapper/8	19:45:43	14
566949	99	501	16,483	cyclictest	0	-21	swapper/7	20:28:43	13
566924	99	499	31,467	cyclictest	0	-21	swapper/0	22:39:45	0
566949	99	498	0,498	cyclictest	0	-21	swapper/7	20:04:23	13
566949	99	498	0,0	cyclictest	0	-21	swapper/7	20:10:23	13
566935	99	498	0,498	cyclictest	0	-21	swapper/3	21:39:45	9
566930	99	497	23,0	cyclictest	0	-21	swapper/2	21:57:21	8
566978	99	496	0,495	cyclictest	0	-21	swapper/14	22:04:46	6
566969	99	496	14,42	cyclictest	0	-21	swapper/12	21:04:46	4
566949	99	496	0,496	cyclictest	0	-21	swapper/7	22:54:56	13
566978	99	495	0,495	cyclictest	0	-21	swapper/14	21:04:23	6
566969	99	491	23,28	cyclictest	0	-21	swapper/12	23:24:43	4
566930	99	491	490,1	cyclictest	789871	-21	kworker/2:0+i915-unordered	00:23:20	8
566935	99	488	20,468	cyclictest	0	-21	swapper/3	20:14:41	9
566969	99	487	21,27	cyclictest	0	-21	swapper/12	19:42:22	4
566945	99	487	487,0	cyclictest	648883	-21	kworker/6:2+i915-unordered	20:57:59	12
566935	99	485	16,0	cyclictest	0	-21	swapper/3	19:31:23	9
566969	99	484	61,422	cyclictest	578362	-21	kworker/12:3+i915-unordered	21:36:59	4
566969	99	484	19,26	cyclictest	0	-21	swapper/12	22:10:57	4
566949	99	484	14,468	cyclictest	0	-21	swapper/7	19:30:20	13
566978	99	483	483,0	cyclictest	0	-21	swapper/14	22:18:23	6
566969	99	482	482,0	cyclictest	578362	-21	kworker/12:3+i915-unordered	21:34:44	4
566969	99	482	482,0	cyclictest	578362	-21	kworker/12:3+i915-unordered	21:34:44	4
566969	99	481	1,43	cyclictest	132	-21	ksoftirqd/12	19:32:52	4
566969	99	480	56,423	cyclictest	778100	-21	kworker/12:1+i915-unordered	00:06:21	4
566949	99	480	11,469	cyclictest	0	-21	swapper/7	00:20:44	13
566978	99	479	10,469	cyclictest	0	-21	swapper/14	20:40:43	6
566969	99	479	478,1	cyclictest	778100	-21	kworker/12:1+events	00:15:46	4
566945	99	479	27,452	cyclictest	0	-21	swapper/6	23:46:20	12
566945	99	479	10,469	cyclictest	0	-21	swapper/6	00:22:20	12
566969	99	478	40,437	cyclictest	0	-21	swapper/12	23:14:44	4
566969	99	475	19,454	cyclictest	0	-21	swapper/12	23:51:44	4
566945	99	475	0,474	cyclictest	0	-21	swapper/6	21:57:21	12
566980	99	474	472,2	cyclictest	602142	-21	kworker/15:1+i915-unordered	20:01:59	7
566969	99	474	474,0	cyclictest	727663	-21	kworker/12:0+i915-unordered	22:51:20	4
566969	99	474	19,454	cyclictest	0	-21	swapper/12	20:37:55	4
566969	99	471	3,27	cyclictest	0	-21	swapper/12	00:22:20	4
566951	99	470	469,1	cyclictest	773297	-21	kworker/8:2+events	00:01:44	14
566949	99	469	468,1	cyclictest	748073	-21	kworker/7:2+events	23:25:22	13
566969	99	468	12,454	cyclictest	0	-21	swapper/12	23:59:22	4
566969	99	467	30,437	cyclictest	0	-21	swapper/12	20:54:42	4
566951	99	465	465,0	cyclictest	319844	-21	kworker/8:1+events	23:10:44	14
566949	99	465	464,1	cyclictest	748073	-21	kworker/7:2+i915-unordered	23:46:59	13
566980	99	464	463,1	cyclictest	578372	-21	kworker/15:3+i915-unordered	19:48:20	7
566949	99	464	464,0	cyclictest	748073	-21	kworker/7:2+i915-unordered	23:22:21	13
566980	99	462	462,0	cyclictest	613875	-21	kworker/15:0+events	20:10:23	7
566969	99	462	7,454	cyclictest	0	-21	swapper/12	22:41:22	4
566969	99	461	6,454	cyclictest	0	-21	swapper/12	20:34:44	4
566969	99	461	23,438	cyclictest	0	-21	swapper/12	23:25:43	4
566945	99	461	457,2	cyclictest	648883	-21	kworker/6:2+i915-unordered	22:04:46	12
566969	99	459	22,0	cyclictest	0	-21	swapper/12	20:48:43	4
566980	99	458	458,0	cyclictest	689434	-21	kworker/15:2+events	21:50:44	7
566969	99	458	19,0	cyclictest	0	-21	swapper/12	22:18:45	4
566949	99	458	458,0	cyclictest	0	-21	swapper/7	21:01:42	13
566980	99	457	457,0	cyclictest	0	-21	swapper/15	23:19:43	7
566969	99	456	456,0	cyclictest	0	-21	swapper/12	20:04:23	4
566945	99	456	456,0	cyclictest	660520	-21	kworker/6:1+i915-unordered	21:04:23	12
566937	99	455	454,1	cyclictest	669	50	irq/164-i915	21:04:23	10
566930	99	455	455,0	cyclictest	0	-21	swapper/2	21:42:21	8
566930	99	455	455,0	cyclictest	0	-21	swapper/2	00:25:23	8
566980	99	453	452,1	cyclictest	0	-21	swapper/15	23:24:43	7
566980	99	453	452,1	cyclictest	0	-21	swapper/15	20:25:20	7
566930	99	453	453,0	cyclictest	0	-21	swapper/2	00:36:59	8
566980	99	451	450,1	cyclictest	0	-21	swapper/15	19:42:22	7
566980	99	450	449,1	cyclictest	0	-21	swapper/15	20:51:43	7
566973	99	450	449,1	cyclictest	617655	-21	kworker/13:2+i915-unordered	20:23:58	5
566969	99	450	449,1	cyclictest	0	-21	swapper/12	23:32:42	4
566937	99	449	448,1	cyclictest	669	50	irq/164-i915	21:39:22	10
566930	99	449	447,2	cyclictest	637255	-21	kworker/2:2+i915-unordered	20:34:23	8
566969	99	448	9,438	cyclictest	0	-21	swapper/12	20:14:40	4
566969	99	448	7,441	cyclictest	0	-21	swapper/12	20:28:43	4
566959	99	448	447,1	cyclictest	747869	-21	kworker/10:2+events	00:24:23	2
566959	99	448	447,1	cyclictest	0	-21	swapper/10	20:34:23	2
566951	99	448	21,30	cyclictest	0	-21	swapper/8	19:43:59	14
566945	99	448	447,1	cyclictest	648883	-21	kworker/6:2+events	22:24:23	12
566969	99	447	9,438	cyclictest	0	-21	swapper/12	20:57:59	4
566969	99	447	9,438	cyclictest	0	-21	swapper/12	19:36:42	4
566969	99	446	9,0	cyclictest	0	-21	swapper/12	22:04:46	4
566969	99	446	6,440	cyclictest	0	-21	swapper/12	20:05:23	4
566940	99	446	444,2	cyclictest	0	-21	swapper/5	20:23:58	11
566951	99	445	19,29	cyclictest	0	-21	swapper/8	22:41:21	14
566980	99	444	444,0	cyclictest	0	-21	swapper/15	19:32:53	7
566945	99	444	443,1	cyclictest	701345	-21	kworker/6:0+i915-unordered	22:18:23	12
566945	99	444	22,28	cyclictest	0	-21	swapper/6	00:18:20	12
566949	99	443	413,30	cyclictest	0	-21	swapper/7	21:30:43	13
566949	99	443	413,30	cyclictest	0	-21	swapper/7	21:30:43	13
566935	99	443	19,29	cyclictest	0	-21	swapper/3	21:15:46	9
566969	99	442	5,437	cyclictest	0	-21	swapper/12	23:15:44	4
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2019-05-28 - 00:17