OSADL QA Farm on Real-time of Mainline Linux

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

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 Tue Jul 14, 2026 00:43:47)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2700779	99	724	723,1	cyclictest	0	-21	swapper/6	21:08:06	12
2700760	99	522	8,513	cyclictest	0	-21	swapper/1	19:59:20	1
2700783	99	519	28,490	cyclictest	0	-21	swapper/7	21:24:20	13
2700790	99	515	514,1	cyclictest	2995045	-21	kworker/9:0+i915-unordered	00:34:20	15
2700775	99	513	511,1	cyclictest	2865862	-21	kworker/5:1+i915-unordered	22:44:20	11
2700790	99	494	494,0	cyclictest	2830416	-21	kworker/9:2+i915-unordered	21:32:20	15
2700771	99	484	484,0	cyclictest	0	-21	swapper/4	21:19:20	10
2700790	99	483	483,0	cyclictest	2857420	-21	kworker/9:0+i915-unordered	22:09:20	15
2700779	99	481	23,59	cyclictest	0	-21	swapper/6	00:03:41	12
2700816	99	473	17,58	cyclictest	0	-21	swapper/15	20:48:41	7
2700816	99	469	18,30	cyclictest	0	-21	swapper/15	20:13:43	7
2700771	99	468	466,2	cyclictest	2723667	-21	kworker/4:1+i915-unordered	19:57:20	10
2700785	99	465	26,29	cyclictest	0	-21	swapper/8	21:32:05	14
2700790	99	464	463,1	cyclictest	2745413	-21	kworker/9:1+i915-unordered	19:59:20	15
2700764	99	464	17,29	cyclictest	0	-21	swapper/2	20:51:42	8
2700775	99	462	461,1	cyclictest	0	-21	swapper/5	23:18:20	11
2700764	99	461	13,30	cyclictest	0	-21	swapper/2	20:20:43	8
2700764	99	461	11,30	cyclictest	0	-21	swapper/2	20:25:43	8
2700812	99	458	455,3	cyclictest	0	-21	swapper/14	21:00:20	6
2700769	99	457	456,1	cyclictest	697	50	irq/159-i915	22:17:20	9
2700769	99	456	455,1	cyclictest	697	50	irq/159-i915	00:18:20	9
2700756	99	456	455,1	cyclictest	0	-21	swapper/0	20:54:20	0
2700798	99	453	450,2	cyclictest	2834638	-21	kworker/11:0+i915-unordered	22:17:20	3
2700803	99	451	9,28	cyclictest	0	-21	swapper/12	20:59:20	4
2700798	99	451	449,1	cyclictest	2973809	-21	kworker/11:2+i915-unordered	00:18:20	3
2700779	99	451	24,30	cyclictest	0	-21	swapper/6	23:46:03	12
2700779	99	448	22,30	cyclictest	0	-21	swapper/6	19:23:04	12
2700812	99	447	417,30	cyclictest	0	-21	swapper/14	21:49:20	6
2700816	99	446	21,30	cyclictest	0	-21	swapper/15	23:57:04	7
2700816	99	446	17,30	cyclictest	0	-21	swapper/15	19:35:05	7
2700816	99	446	16,30	cyclictest	0	-21	swapper/15	00:05:44	7
2700812	99	446	446,0	cyclictest	2861474	-21	kworker/14:0+i915-unordered	22:29:20	6
2700808	99	446	25,420	cyclictest	0	-21	swapper/13	00:20:05	5
2700785	99	446	4,28	cyclictest	0	-21	swapper/8	20:17:06	14
2700764	99	446	26,419	cyclictest	0	-21	swapper/2	20:29:05	8
2700785	99	445	0,30	cyclictest	0	-21	swapper/8	21:48:04	14
2700816	99	444	16,29	cyclictest	0	-21	swapper/15	19:51:03	7
2700808	99	444	24,419	cyclictest	0	-21	swapper/13	21:51:42	5
2700808	99	444	24,419	cyclictest	0	-21	swapper/13	21:51:42	5
2700803	99	444	444,0	cyclictest	2812377	-21	kworker/12:2+i915-unordered	21:19:20	4
2700816	99	443	18,29	cyclictest	0	-21	swapper/15	22:43:05	7
2700785	99	443	1,28	cyclictest	0	-21	swapper/8	00:31:05	14
2700764	99	443	443,0	cyclictest	0	-21	swapper/2	21:16:14	8
2700760	99	443	22,420	cyclictest	0	-21	swapper/1	22:14:41	1
2700783	99	442	19,30	cyclictest	0	-21	swapper/7	00:24:20	13
2700785	99	441	0,29	cyclictest	0	-21	swapper/8	20:43:41	14
2700764	99	441	17,29	cyclictest	0	-21	swapper/2	22:21:41	8
2700764	99	440	20,419	cyclictest	0	-21	swapper/2	23:32:43	8
2700764	99	440	17,422	cyclictest	0	-21	swapper/2	19:56:06	8
2700812	99	439	432,6	cyclictest	1818	-21	snmpd	00:30:32	6
2700785	99	439	16,422	cyclictest	0	-21	swapper/8	23:36:41	14
2700764	99	439	20,418	cyclictest	0	-21	swapper/2	22:02:43	8
2700764	99	439	20,418	cyclictest	0	-21	swapper/2	22:01:02	8
2700764	99	439	20,418	cyclictest	0	-21	swapper/2	22:01:02	8
2700764	99	439	19,29	cyclictest	0	-21	swapper/2	23:24:20	8
2700764	99	439	14,29	cyclictest	0	-21	swapper/2	21:06:03	8
2700764	99	439	13,28	cyclictest	0	-21	swapper/2	21:44:05	8
2700764	99	438	11,29	cyclictest	0	-21	swapper/2	21:18:43	8
2700808	99	437	16,420	cyclictest	0	-21	swapper/13	20:56:02	5
2700790	99	437	434,2	cyclictest	2914713	-21	kworker/9:2+i915-unordered	23:06:43	15
2700785	99	437	22,414	cyclictest	0	-21	swapper/8	21:59:04	14
2700785	99	437	22,414	cyclictest	0	-21	swapper/8	21:59:04	14
2700760	99	437	15,421	cyclictest	0	-21	swapper/1	20:19:42	1
2700816	99	436	14,30	cyclictest	0	-21	swapper/15	23:37:20	7
2700785	99	436	16,415	cyclictest	0	-21	swapper/8	21:06:43	14
2700760	99	436	16,418	cyclictest	0	-21	swapper/1	20:10:05	1
2700785	99	435	433,2	cyclictest	2799000	-21	kworker/8:1+i915-unordered	20:54:20	14
2700760	99	435	15,418	cyclictest	0	-21	swapper/1	21:30:04	1
2700808	99	434	15,418	cyclictest	0	-21	swapper/13	21:50:42	5
2700808	99	434	12,421	cyclictest	0	-21	swapper/13	20:57:05	5
2700808	99	433	13,419	cyclictest	0	-21	swapper/13	19:47:06	5
2700783	99	433	17,415	cyclictest	0	-21	swapper/7	20:02:20	13
2700769	99	433	432,1	cyclictest	697	50	irq/159-i915	22:04:20	9
2700764	99	433	14,28	cyclictest	0	-21	swapper/2	23:08:20	8
2700785	99	432	12,418	cyclictest	0	-21	swapper/8	20:26:42	14
2700779	99	432	18,30	cyclictest	0	-21	swapper/6	19:38:20	12
2700785	99	431	18,412	cyclictest	0	-21	swapper/8	20:03:43	14
2700771	99	430	428,2	cyclictest	1818	-21	snmpd	23:09:33	10
2700756	99	430	17,412	cyclictest	0	-21	swapper/0	20:16:43	0
2700816	99	429	429,0	cyclictest	2816679	-21	kworker/15:1+i915-unordered	21:24:20	7
2700803	99	429	12,30	cyclictest	0	-21	swapper/12	19:20:20	4
2700798	99	429	426,3	cyclictest	2856647	-21	kworker/11:1+i915-unordered	22:04:20	3
2700760	99	429	12,416	cyclictest	0	-21	swapper/1	21:32:20	1
2700756	99	429	426,2	cyclictest	2569463	-21	kworker/0:4+events	21:20:06	0
2700808	99	425	4,419	cyclictest	0	-21	swapper/13	20:51:04	5
2700790	99	425	424,1	cyclictest	2968117	-21	kworker/9:2+i915-unordered	00:06:42	15
2700785	99	425	6,29	cyclictest	0	-21	swapper/8	20:23:05	14
2700779	99	425	422,3	cyclictest	1818	-21	snmpd	21:52:54	12
2700779	99	425	422,3	cyclictest	1818	-21	snmpd	21:52:54	12
2700816	99	424	4,30	cyclictest	0	-21	swapper/15	23:02:20	7
2700808	99	424	26,397	cyclictest	0	-21	swapper/13	20:44:04	5
2700785	99	424	1,29	cyclictest	0	-21	swapper/8	23:28:04	14
2700783	99	424	25,395	cyclictest	0	-21	swapper/7	21:16:15	13
2700769	99	424	423,1	cyclictest	697	50	irq/159-i915	21:33:20	9
2700760	99	424	25,398	cyclictest	0	-21	swapper/1	19:29:42	1
2700760	99	424	24,399	cyclictest	0	-21	swapper/1	21:05:42	1
2700790	99	423	421,1	cyclictest	2972825	-21	kworker/9:1+i915-unordered	00:24:07	15
2700785	99	423	2,29	cyclictest	0	-21	swapper/8	22:34:06	14
2700785	99	423	1,29	cyclictest	0	-21	swapper/8	21:42:04	14
2700785	99	423	0,29	cyclictest	0	-21	swapper/8	00:08:42	14
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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