OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #0, slot #2

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 rack0slot2.osadl.org (updated Sat Jul 27, 2024 12:43:29)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
26791	89	52	0,30	rtkit-daemon	0	-21	swapper/5	07:01:32	5
2394914	99	42	40,2	cyclictest	2710674	-21	kworker/u16:0+events_unbound	09:41:01	5
2385256	2	40	3,31	sleep7	0	-21	swapper/7	06:57:33	7
2394495	2	35	24,8	sleep6	0	-21	swapper/6	07:00:13	6
2394588	2	32	21,8	sleep4	0	-21	swapper/4	07:01:31	4
2394918	99	30	26,3	cyclictest	2543120	-21	kworker/u16:4+flush-8:0	08:42:55	6
2394920	99	29	28,0	cyclictest	0	-21	swapper/7	09:57:54	7
2394914	99	29	27,2	cyclictest	2739889	-21	kworker/u16:1+events_unbound	10:02:51	5
2394914	99	27	25,2	cyclictest	2486562	-21	kworker/u16:3+flush-8:0	07:47:29	5
2394914	99	27	24,2	cyclictest	3858775	-21	kworker/u16:0+flush-8:0	07:12:38	5
2394914	99	26	24,2	cyclictest	2593887	-21	kworker/u16:1+events_unbound	09:17:42	5
2394918	99	24	22,2	cyclictest	3012136	-21	kworker/u16:2+events_unbound	12:27:57	6
2394914	99	24	22,2	cyclictest	2944793	-21	kworker/u16:2+events_unbound	11:57:41	5
2394914	99	24	22,2	cyclictest	2886679	-21	kworker/u16:3+flush-8:0	12:07:28	5
2394912	99	24	21,2	cyclictest	2543120	-21	kworker/u16:4+events_unbound	08:27:42	4
2394920	99	23	22,0	cyclictest	0	-21	swapper/7	09:41:36	7
2394914	99	23	21,2	cyclictest	2886679	-21	kworker/u16:3+flush-8:0	11:22:58	5
2394912	99	23	21,2	cyclictest	2673516	-21	kworker/u16:2+flush-8:0	09:32:59	4
2394918	99	22	18,3	cyclictest	2543120	-21	kworker/u16:4+flush-8:0	08:52:29	6
2394912	99	22	19,2	cyclictest	2575383	-21	kworker/u16:0+flush-8:0	08:42:29	4
2394912	99	22	17,4	cyclictest	2720691	-21	latency_hist	09:47:28	4
2394920	99	21	20,0	cyclictest	0	-21	swapper/7	07:41:01	7
2394920	99	21	19,1	cyclictest	0	-21	swapper/7	07:02:30	7
2394914	99	21	19,2	cyclictest	2856868	-21	kworker/u16:2+events_unbound	11:02:54	5
2394914	99	21	19,2	cyclictest	2673516	-21	kworker/u16:2+events_unbound	09:32:41	5
2394914	99	21	19,2	cyclictest	2575383	-21	kworker/u16:0+events_unbound	08:37:42	5
2394914	99	21	19,2	cyclictest	2437543	-21	kworker/u16:0+events_unbound	07:32:53	5
2394914	99	21	19,2	cyclictest	2404650	-21	kworker/u16:2+events_unbound	08:18:02	5
2394914	99	21	19,2	cyclictest	2404650	-21	kworker/u16:2+events_unbound	08:18:02	5
2394914	99	21	18,3	cyclictest	2631928	-21	kworker/u16:2+events_unbound	09:07:54	5
2394912	99	21	18,2	cyclictest	2404650	-21	kworker/u16:2+flush-8:0	08:22:24	4
2394912	99	21	18,2	cyclictest	2404650	-21	kworker/u16:2+flush-8:0	08:22:24	4
2394920	99	20	19,0	cyclictest	0	-21	swapper/7	11:07:40	7
2394920	99	20	0,18	cyclictest	0	-21	swapper/7	10:52:54	7
2394918	99	20	17,2	cyclictest	2631928	-21	kworker/u16:2+flush-8:0	09:07:50	6
2394914	99	20	18,2	cyclictest	2404650	-21	kworker/u16:2+flush-8:0	07:47:57	5
2394912	99	20	18,1	cyclictest	0	-21	swapper/4	12:28:57	4
2394920	99	19	18,0	cyclictest	0	-21	swapper/7	12:12:52	7
2394920	99	19	18,0	cyclictest	0	-21	swapper/7	07:27:29	7
2394920	99	19	17,1	cyclictest	0	-21	swapper/7	11:17:46	7
2394914	99	19	17,2	cyclictest	2779568	-21	kworker/u16:1+events_unbound	10:45:39	5
2394914	99	19	17,2	cyclictest	2673516	-21	kworker/u16:2+flush-8:0	10:12:57	5
2394914	99	19	17,2	cyclictest	2546309	-21	kworker/u16:5+events_unbound	08:22:53	5
2394914	99	19	17,2	cyclictest	2486562	-21	kworker/u16:3+events_unbound	08:12:57	5
2394912	99	19	17,2	cyclictest	2739889	-21	kworker/u16:1+flush-8:0	10:02:57	4
2394920	99	18	4,6	cyclictest	0	-21	swapper/7	09:16:30	7
2394920	99	18	17,0	cyclictest	0	-21	swapper/7	08:32:53	7
2394920	99	18	17,0	cyclictest	0	-21	swapper/7	07:37:29	7
2394920	99	18	16,1	cyclictest	0	-21	swapper/7	10:03:02	7
2394918	99	18	15,2	cyclictest	2856893	-21	kworker/u16:4+flush-8:0	11:12:45	6
2394918	99	18	15,2	cyclictest	2673516	-21	kworker/u16:2+events_unbound	09:37:46	6
2394918	99	18	15,2	cyclictest	2466756	-21	kworker/u16:1+flush-8:0	07:57:29	6
2394914	99	18	16,2	cyclictest	2739889	-21	kworker/u16:1+events_unbound	10:07:40	5
2394914	99	18	16,2	cyclictest	2739889	-21	kworker/u16:1+events_unbound	09:57:56	5
2394914	99	18	16,2	cyclictest	2710674	-21	kworker/u16:0+events_unbound	09:47:50	5
2394914	99	18	16,2	cyclictest	2631928	-21	kworker/u16:2+flush-8:0	09:12:59	5
2394914	99	18	16,2	cyclictest	2593887	-21	kworker/u16:1+events_unbound	08:57:52	5
2394912	99	18	16,2	cyclictest	3858775	-21	kworker/u16:0+events_unbound	07:07:44	4
2394912	99	18	16,2	cyclictest	2631928	-21	kworker/u16:2+flush-8:0	09:12:44	4
2394912	99	18	16,2	cyclictest	2543120	-21	kworker/u16:4+events_unbound	09:07:44	4
2394912	99	18	15,2	cyclictest	2437543	-21	kworker/u16:0+flush-8:0	07:37:53	4
2394920	99	17	4,6	cyclictest	0	-21	swapper/7	11:42:17	7
2394920	99	17	4,5	cyclictest	0	-21	swapper/7	11:12:37	7
2394918	99	17	15,2	cyclictest	3012136	-21	kworker/u16:2+flush-8:0	12:17:56	6
2394914	99	17	9,8	cyclictest	0	-21	swapper/5	12:17:33	5
2394914	99	17	15,2	cyclictest	3032483	-21	kworker/u16:4+events_unbound	12:26:02	5
2394914	99	17	15,2	cyclictest	3032483	-21	kworker/u16:4+events_unbound	12:26:02	5
2394914	99	17	15,2	cyclictest	2934950	-21	kworker/u16:1+flush-8:0	11:43:38	5
2394914	99	17	15,2	cyclictest	2641672	-21	kworker/u16:3+events_unbound	09:03:57	5
2394914	99	17	15,2	cyclictest	2404650	-21	kworker/u16:2+events_unbound	07:39:04	5
2394914	99	17	15,2	cyclictest	2394431	-21	kworker/u16:1+flush-8:0	07:04:53	5
2394912	99	17	16,1	cyclictest	0	-21	swapper/4	08:03:37	4
2394912	99	17	15,2	cyclictest	2673516	-21	kworker/u16:2+events_unbound	10:27:40	4
2394912	99	17	13,3	cyclictest	2437543	-21	kworker/u16:0+flush-8:0	07:42:47	4
2394920	99	16	7,8	cyclictest	0	-21	swapper/7	12:04:39	7
2394920	99	16	3,6	cyclictest	0	-21	swapper/7	09:51:52	7
2394920	99	16	3,5	cyclictest	0	-21	swapper/7	10:51:24	7
2394920	99	16	15,0	cyclictest	0	-21	swapper/7	12:17:59	7
2394920	99	16	15,0	cyclictest	0	-21	swapper/7	11:53:37	7
2394920	99	16	14,1	cyclictest	0	-21	swapper/7	12:22:43	7
2394920	99	16	14,1	cyclictest	0	-21	swapper/7	12:22:43	7
2394920	99	16	14,1	cyclictest	0	-21	swapper/7	10:27:50	7
2394918	99	16	13,2	cyclictest	2856893	-21	kworker/u16:4+flush-8:0	11:32:50	6
2394918	99	16	12,3	cyclictest	2673516	-21	kworker/u16:2+flush-8:0	10:12:54	6
2394914	99	16	14,2	cyclictest	3032483	-21	kworker/u16:4+flush-8:0	12:27:44	5
2394914	99	16	14,2	cyclictest	2983947	-21	kworker/u16:0+flush-8:0	12:17:28	5
2394914	99	16	14,2	cyclictest	2983947	-21	kworker/u16:0+events_unbound	12:12:15	5
2394914	99	16	14,2	cyclictest	2856893	-21	kworker/u16:4+events_unbound	11:12:37	5
2394914	99	16	14,2	cyclictest	2856893	-21	kworker/u16:4+events_unbound	10:57:59	5
2394914	99	16	14,2	cyclictest	2543120	-21	kworker/u16:4+events_unbound	08:51:31	5
2394914	99	16	14,2	cyclictest	2486562	-21	kworker/u16:3+events_unbound	08:11:25	5
2394914	99	16	14,2	cyclictest	2466756	-21	kworker/u16:1+events_unbound	07:56:59	5
2394914	99	16	13,2	cyclictest	2886679	-21	kworker/u16:3+events_unbound	11:47:49	5
2394912	99	16	14,2	cyclictest	3858775	-21	kworker/u16:0+flush-8:0	07:02:58	4
2394912	99	16	14,2	cyclictest	2934950	-21	kworker/u16:1+events_unbound	12:02:52	4
2394912	99	16	14,2	cyclictest	2641672	-21	kworker/u16:3+events_unbound	09:27:50	4
2394912	99	16	14,2	cyclictest	2486562	-21	kworker/u16:3+flush-8:0	07:57:54	4
2394912	99	16	14,2	cyclictest	2404650	-21	kworker/u16:2+events_unbound	07:17:54	4
2394912	99	16	12,4	cyclictest	0	-21	swapper/4	07:33:45	4
2394912	99	16	12,3	cyclictest	2543120	-21	kworker/u16:4+flush-8:0	08:57:55	4
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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