OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

Default latency plot of shadow in rack #5, slot #4

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
Special All - All RT - Optimization - Ethernet - Thumbnails - Next

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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: ondemand
Compare latency of primary with shadow system

Characteristics of the 100 highest latencies:

System rack5slot4s.osadl.org (updated Wed Jul 01, 2026 00:44:16)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3164050	2	187	0,3	sleep3	75	-21	kworker/3:1-events	00:00:18	3
2936324	2	71	0,2	chrt	39	-21	ksoftirqd/2	20:10:20	2
2871877	99	65	59,4	cyclictest	3113075	-21	kworker/u8:0+events_unbound	23:45:28	1
2871877	99	63	55,6	cyclictest	2933842	-21	kworker/u8:0+flush-8:0	22:15:26	1
2871877	99	63	55,6	cyclictest	2933842	-21	kworker/u8:0+flush-8:0	22:15:26	1
2871877	99	62	56,5	cyclictest	2911071	-21	kworker/u8:1+events_unbound	20:05:30	1
2871877	99	62	56,5	cyclictest	2911071	-21	kworker/u8:1+events_unbound	20:05:30	1
2871877	99	60	55,3	cyclictest	2933842	-21	kworker/u8:0+events_unbound	21:35:29	1
2871877	99	58	52,5	cyclictest	3137829	-21	kworker/u8:2+events_unbound	00:35:28	1
2871877	99	57	52,4	cyclictest	3012449	-21	kworker/u8:1+events_unbound	21:45:13	1
2871877	99	57	51,4	cyclictest	3032895	-21	kworker/u8:3+events_unbound	21:50:27	1
2871877	99	57	51,4	cyclictest	3032895	-21	kworker/u8:3+events_unbound	21:50:26	1
2871877	99	57	51,4	cyclictest	2911071	-21	kworker/u8:1+flush-8:0	20:20:30	1
2871877	99	57	50,5	cyclictest	2933842	-21	kworker/u8:0+events_unbound	21:05:30	1
2966377	2	56	0,1	sleep0	2966384	-21	tr	20:40:20	0
2871877	99	56	52,3	cyclictest	3077814	-21	kworker/u8:3+events_unbound	23:05:30	1
2871877	99	56	51,4	cyclictest	3068013	-21	kworker/u8:1+flush-8:0	22:35:26	1
2871877	99	56	49,6	cyclictest	3113075	-21	kworker/u8:0+flush-8:0	23:20:29	1
2871877	99	56	48,6	cyclictest	2898400	-21	kworker/u8:2+events_unbound	20:15:28	1
2871873	99	56	47,7	cyclictest	2948701	-21	/usr/sbin/munin	20:25:23	0
2871877	99	55	49,4	cyclictest	3113075	-21	kworker/u8:0+events_unbound	23:15:28	1
2871877	99	54	48,4	cyclictest	2898400	-21	kworker/u8:2+events_unbound	19:35:28	1
2871877	99	54	47,5	cyclictest	2898400	-21	kworker/u8:2+events_unbound	20:45:24	1
2871877	99	53	46,5	cyclictest	3068013	-21	kworker/u8:1+events_unbound	22:55:26	1
2871877	99	53	42,9	cyclictest	3091786	-21	ntpq	22:45:24	1
2871877	99	52	46,5	cyclictest	2933842	-21	kworker/u8:0+flush-8:0	21:40:26	1
2871877	99	52	46,5	cyclictest	2911071	-21	kworker/u8:1+flush-8:0	20:00:25	1
2871877	99	52	46,5	cyclictest	2026296	-21	kworker/u8:0+events_unbound	19:15:29	1
2871877	99	52	45,5	cyclictest	3123163	-21	kworker/u8:1+events_unbound	00:25:29	1
2871873	99	52	0,50	cyclictest	1	-21	systemd	00:00:00	0
2871878	99	51	46,4	cyclictest	2884284	-21	kworker/u8:3+flush-8:0	19:25:30	2
2871877	99	50	46,3	cyclictest	2933842	-21	kworker/u8:0+events_unbound	21:55:30	1
2871877	99	50	45,4	cyclictest	2026296	-21	kworker/u8:0+events_unbound	19:10:28	1
2871877	99	50	45,3	cyclictest	2898400	-21	kworker/u8:2+events_unbound	20:25:25	1
2871877	99	50	44,5	cyclictest	3068013	-21	kworker/u8:1+events_unbound	22:50:30	1
2871878	99	48	37,8	cyclictest	1704890	-21	systemd-journal	00:09:59	2
2871877	99	48	44,3	cyclictest	3003364	-21	kworker/u8:2+flush-8:0	21:30:28	1
2871877	99	47	42,3	cyclictest	2962780	-21	kworker/u8:3+flush-8:0	20:40:25	1
2871877	99	47	41,5	cyclictest	2911071	-21	kworker/u8:1+events_unbound	19:55:27	1
2871877	99	46	42,3	cyclictest	2911071	-21	kworker/u8:1+flush-8:0	20:35:31	1
2871877	99	46	40,4	cyclictest	3137829	-21	kworker/u8:2+flush-8:0	23:50:26	1
2871877	99	46	40,4	cyclictest	2962780	-21	kworker/u8:3+flush-8:0	21:25:21	1
2871873	99	46	1,43	cyclictest	1	-21	systemd	23:35:01	0
2871873	99	46	11,18	cyclictest	589	-21	runrttasks	22:45:13	0
2871877	99	45	41,3	cyclictest	3003364	-21	kworker/u8:2+flush-8:0	22:05:33	1
2871877	99	45	38,5	cyclictest	3123163	-21	kworker/u8:1+events_unbound	00:30:15	1
2871877	99	44	38,4	cyclictest	2884284	-21	kworker/u8:3+flush-8:0	19:30:14	1
2871878	99	43	37,4	cyclictest	2962780	-21	kworker/u8:3+flush-8:0	21:00:30	2
2871877	99	43	39,2	cyclictest	3077814	-21	kworker/u8:3+events_unbound	23:10:12	1
2871877	99	43	38,4	cyclictest	2884284	-21	kworker/u8:3+events_unbound	19:40:22	1
2871877	99	43	37,5	cyclictest	3123163	-21	kworker/u8:1+flush-8:0	23:35:26	1
2871877	99	43	37,5	cyclictest	2993426	-21	kworker/u8:1+flush-8:0	21:10:26	1
2871877	99	43	37,5	cyclictest	2911071	-21	kworker/u8:1+events_unbound	19:45:28	1
2871877	99	43	36,5	cyclictest	3077814	-21	kworker/u8:3+events_unbound	22:40:18	1
2871873	99	43	35,6	cyclictest	3027021	-21	ntpq	21:40:22	0
2871873	99	43	34,7	cyclictest	2912672	-21	ntpq	19:45:25	0
2871873	99	43	33,8	cyclictest	2977295	-21	ntpq	20:50:26	0
2871878	99	42	34,6	cyclictest	1704890	-21	systemd-journal	22:00:00	2
2871877	99	41	36,4	cyclictest	3113075	-21	kworker/u8:0+flush-8:0	00:05:25	1
2871877	99	41	35,5	cyclictest	2933842	-21	kworker/u8:0+flush-8:0	20:30:26	1
2871877	99	41	34,5	cyclictest	2993426	-21	kworker/u8:1+flush-8:0	21:15:25	1
2871877	99	41	31,6	cyclictest	1704890	-21	systemd-journal	19:50:47	1
2871877	99	40	35,4	cyclictest	2933842	-21	kworker/u8:0+flush-8:0	22:20:12	1
2871877	99	40	35,4	cyclictest	2933842	-21	kworker/u8:0+flush-8:0	22:20:12	1
2871877	99	40	35,3	cyclictest	3113075	-21	kworker/u8:0+flush-8:0	23:40:21	1
2871877	99	40	34,4	cyclictest	3123163	-21	kworker/u8:1+flush-8:0	23:55:27	1
2871877	99	40	34,4	cyclictest	3003364	-21	kworker/u8:2+events_unbound	22:10:27	1
2871877	99	39	35,3	cyclictest	3032895	-21	kworker/u8:3+flush-8:0	22:00:29	1
2871877	99	39	34,4	cyclictest	2876927	-21	kworker/u8:1+events_unbound	19:25:16	1
2871878	99	37	31,4	cyclictest	3003364	-21	kworker/u8:2+events_unbound	22:40:29	2
2871877	99	37	32,3	cyclictest	2876927	-21	kworker/u8:1+events_unbound	19:24:59	1
2871873	99	37	27,8	cyclictest	2933842	-21	kworker/u8:0+flush-8:0	21:35:31	0
2871878	99	36	31,4	cyclictest	3123163	-21	kworker/u8:1+flush-8:0	23:30:30	2
2871878	99	36	30,4	cyclictest	3113075	-21	kworker/u8:0+flush-8:0	23:10:26	2
2871878	99	36	26,8	cyclictest	2947632	-21	ntpq	20:20:29	2
2871877	99	36	30,4	cyclictest	3123163	-21	kworker/u8:1+flush-8:0	00:15:16	1
2871877	99	36	29,5	cyclictest	3163069	-21	apt-get	00:00:08	1
2871873	99	36	29,5	cyclictest	1704890	-21	systemd-journal	21:16:00	0
2871873	99	36	28,5	cyclictest	3107449	-21	grep	23:00:32	0
2871873	99	36	25,8	cyclictest	3101927	-21	ntpq	22:55:25	0
2871475	2	36	4,10	sleep1	0	-21	swapper/1	19:07:07	1
2871878	99	35	30,4	cyclictest	2876927	-21	kworker/u8:1+events_unbound	19:20:28	2
2871877	99	35	31,3	cyclictest	3077814	-21	kworker/u8:3+flush-8:0	23:30:20	1
2871877	99	35	31,3	cyclictest	2973082	-21	kworker/u8:1+flush-8:0	20:55:19	1
2871873	99	35	29,4	cyclictest	3122273	-21	grep	23:15:31	0
2871873	99	35	28,5	cyclictest	2933842	-21	kworker/u8:0+events_unbound	22:15:25	0
2871873	99	35	28,5	cyclictest	2933842	-21	kworker/u8:0+events_unbound	22:15:24	0
2871873	99	35	28,5	cyclictest	1704890	-21	systemd-journal	23:41:29	0
2871873	99	35	25,8	cyclictest	3072038	-21	ntpq	22:25:25	0
2871873	99	35	23,8	cyclictest	1704890	-21	systemd-journal	23:55:00	0
2935334	2	34	0,3	sleep1	0	-21	swapper/1	20:10:19	1
2871878	99	34	29,4	cyclictest	3003364	-21	kworker/u8:2+flush-8:0	22:25:30	2
2871878	99	34	29,4	cyclictest	2973082	-21	kworker/u8:1+events_unbound	20:50:30	2
2871877	99	34	29,4	cyclictest	3113075	-21	kworker/u8:0+flush-8:0	23:25:34	1
2871873	99	34	3,7	cyclictest	3173963	-21	grep	00:15:10	0
2871877	99	33	29,3	cyclictest	3003364	-21	kworker/u8:2+flush-8:0	21:20:30	1
2871877	99	33	27,5	cyclictest	2933842	-21	kworker/u8:0+flush-8:0	22:25:26	1
2871873	99	33	28,3	cyclictest	2933609	-21	cron	20:10:00	0
2871873	99	33	28,3	cyclictest	2933609	-21	cron	20:09:59	0
2871873	99	33	24,7	cyclictest	2897805	-21	ntpq	19:30:23	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


Access: public		Short link to this page
This page was last modified on 2019-05-28 - 00:17