OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #7, 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.

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

Characteristics of the highest latencies:

System rack7slot2.osadl.org (updated Tue Feb 24, 2026 00:44:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
4040364	99	97	90,5	cyclictest	4169167	-21	kworker/u4:2+events_unbound	23:13:21	0
4040364	99	73	65,6	cyclictest	4164746	-21	kworker/u4:0+events_unbound	22:58:20	0
4040366	99	72	63,6	cyclictest	4028078	-21	kworker/u4:7+events_unbound	20:02:59	1
4040366	99	71	1,35	cyclictest	4145737	-21	irqstats	22:35:22	1
4040364	99	71	63,6	cyclictest	4129864	-21	kworker/u4:0+events_unbound	22:23:18	0
4040366	99	70	60,7	cyclictest	4055558	-21	kworker/u4:6+events_unbound	20:08:01	1
4040366	99	70	60,7	cyclictest	4055558	-21	kworker/u4:6+events_unbound	20:08:00	1
4040366	99	70	38,5	cyclictest	4120270	-21	grep	22:05:40	1
4040366	99	70	33,34	cyclictest	4040362	-21	cyclictest	23:40:19	1
4040364	99	70	61,6	cyclictest	4081817	-21	kworker/u4:3+events_unbound	21:23:09	0
4040364	99	70	61,6	cyclictest	4070787	-21	kworker/u4:5+events_unbound	21:18:06	0
4040366	99	69	44,22	cyclictest	42886	-21	ntp_kernel_pll_	00:20:26	1
4040366	99	69	35,6	cyclictest	4089718	-21	unixbench-2d	21:30:38	1
4040364	99	69	61,6	cyclictest	4070787	-21	kworker/u4:5+events_unbound	21:33:10	0
4040364	99	69	58,8	cyclictest	4053021	-21	kworker/u4:2+events_unbound	20:23:03	0
4040364	99	68	59,5	cyclictest	4127745	-21	rm	22:15:14	0
4040366	99	67	59,6	cyclictest	4047971	-21	kworker/u4:13+events_unbound	20:18:01	1
4040366	99	67	33,6	cyclictest	4041570	-21	kworker/u4:0+rpciod	21:00:37	1
4040364	99	67	60,5	cyclictest	4041573	-21	kworker/u4:8+events_unbound	19:20:01	0
4040364	99	67	60,5	cyclictest	4041573	-21	kworker/u4:8+events_unbound	19:20:01	0
4040364	99	67	59,6	cyclictest	4169168	-21	kworker/u4:3+events_unbound	23:38:26	0
4040364	99	67	58,6	cyclictest	4070792	-21	kworker/u4:7+events_unbound	21:08:05	0
4040366	99	66	58,6	cyclictest	4156573	-21	kworker/u4:9+events_unbound	23:18:22	1
4040366	99	66	35,5	cyclictest	4101898	-21	df_abs	21:45:20	1
4040364	99	66	57,6	cyclictest	4046626	-21	kworker/u4:5+events_unbound	19:32:56	0
4040366	99	65	33,30	cyclictest	4164750	-21	kworker/u4:5+rpciod	23:00:16	1
4040366	99	64	31,4	cyclictest	0	-21	swapper/1	20:45:27	1
4040364	99	64	55,7	cyclictest	4031873	-21	kworker/u4:2+events_unbound	19:37:57	0
4040366	99	63	54,7	cyclictest	4042840	-21	systemd	19:17:54	1
4040366	99	63	54,7	cyclictest	4042840	-21	systemd	19:17:53	1
4040364	99	63	49,5	cyclictest	1459	-21	kworker/u4:1+events_unbound	23:43:26	0
4040366	99	62	12,17	cyclictest	0	-21	swapper/1	22:15:20	1
4040364	99	62	54,6	cyclictest	4060614	-21	kworker/u4:12+events_unbound	20:33:03	0
4040366	99	61	50,9	cyclictest	54	-21	kswapd0	00:20:00	1
4040366	99	61	34,5	cyclictest	0	-21	swapper/1	23:45:18	1
4040366	99	61	27,6	cyclictest	4047971	-21	kworker/u4:13+rpciod	20:40:16	1
4040366	99	61	27,6	cyclictest	4047971	-21	kworker/u4:13+rpciod	20:40:15	1
4040364	99	61	53,6	cyclictest	35300	-21	kworker/u4:12+events_unbound	00:13:30	0
4040364	99	61	53,5	cyclictest	4040362	-21	cyclictest	21:58:16	0
4040366	99	59	5,46	cyclictest	4076299	-21	ssh	21:15:32	1
4040366	99	59	34,22	cyclictest	0	-21	swapper/1	00:05:25	1
4040364	99	59	34,12	cyclictest	29584	-21	fschecks_time	00:05:20	0
4040366	99	58	50,6	cyclictest	4169168	-21	kworker/u4:3+events_unbound	23:33:24	1
4040364	99	58	50,6	cyclictest	4031873	-21	kworker/u4:2+events_unbound	19:27:55	0
4040364	99	58	50,5	cyclictest	4156573	-21	kworker/u4:9+events_unbound	23:23:24	0
4040366	99	57	50,4	cyclictest	4152107	-21	kworker/u4:3+events_unbound	22:45:00	1
4040364	99	56	46,6	cyclictest	16528	-21	df_abs	23:50:19	0
4040364	99	56	45,8	cyclictest	0	-21	swapper/0	00:25:29	0
4040364	99	56	44,8	cyclictest	4048390	-21	df	19:40:19	0
4040364	99	56	43,9	cyclictest	0	-21	swapper/0	23:05:29	0
4040366	99	55	46,7	cyclictest	4047978	-21	systemd	19:37:55	1
4040364	99	55	46,7	cyclictest	4053023	-21	systemd	19:57:58	0
4040366	99	54	37,12	cyclictest	0	-21	swapper/1	22:50:31	1
4040364	99	54	47,5	cyclictest	4169168	-21	kworker/u4:3+events_unbound	23:04:00	0
4040364	99	54	45,6	cyclictest	1460	-21	kworker/u4:5+events_unbound	23:50:00	0
4040364	99	54	40,11	cyclictest	54738	-21	ssh	00:34:56	0
4040364	99	53	45,6	cyclictest	4186683	-21	kworker/u4:8+events_unbound	23:25:03	0
4040364	99	53	44,5	cyclictest	4064439	-21	apt-get	20:45:14	0
4040364	99	53	34,16	cyclictest	4112191	-21	kworker/u4:3-rpciod	22:10:33	0
4040366	99	52	44,6	cyclictest	4047972	-21	kworker/u4:14+events_unbound	21:13:07	1
4040364	99	52	46,4	cyclictest	4099568	-21	kworker/u4:4+events_unbound	22:03:14	0
4040364	99	52	45,5	cyclictest	25261	-21	tune2fs	00:00:20	0
4040364	99	52	44,5	cyclictest	4136535	-21	tr	22:25:15	0
4040366	99	51	44,5	cyclictest	55410	-21	fschecks_count	00:35:17	1
4040366	99	51	43,6	cyclictest	4112834	-21	kworker/u4:6+events_unbound	21:58:12	1
4040364	99	51	43,6	cyclictest	4075245	-21	latency_hist	21:15:01	0
4040366	99	50	43,5	cyclictest	4040290	-21	kworker/u4:4+events_unbound	19:30:01	1
4040366	99	50	42,6	cyclictest	4188323	-21	idleruntime-cro	23:25:00	1
4040364	99	50	42,5	cyclictest	4122890	-21	ssh	22:09:42	0
4040366	99	49	42,5	cyclictest	4189337	-21	sshd	23:25:29	1
4040366	99	49	42,5	cyclictest	20722	-21	aten_r7power_po	23:55:18	1
4040366	99	49	40,7	cyclictest	47372	-21	/usr/sbin/munin	00:25:36	1
4040364	99	49	43,4	cyclictest	0	-21	swapper/0	20:18:01	0
4040364	99	49	41,5	cyclictest	4053021	-21	kworker/u4:2+events_unbound	20:05:00	0
4040364	99	49	40,6	cyclictest	4040362	-21	cyclictest	22:50:05	0
4040364	99	49	39,8	cyclictest	4152108	-21	kworker/u4:4+events_unbound	22:45:15	0
4040364	99	49	38,7	cyclictest	4096992	-21	ssh	21:40:00	0
4040364	99	49	25,20	cyclictest	0	-21	swapper/0	22:32:19	0
4040364	99	49	21,16	cyclictest	21278	-21	ssh	23:55:28	0
4040366	99	48	42,5	cyclictest	4040362	-21	cyclictest	21:08:04	1
4040366	99	48	41,5	cyclictest	25870	-21	mailstats	00:00:36	1
4040366	99	48	41,5	cyclictest	16440	-21	aten_r7power_vo	23:50:18	1
4040366	99	48	36,8	cyclictest	0	-21	swapper/1	22:55:12	1
4040366	99	48	36,10	cyclictest	4141282	-21	gltestperf	22:30:18	1
4040364	99	48	41,5	cyclictest	45251	-21	systemd	00:23:30	0
4040364	99	48	40,6	cyclictest	4040362	-21	cyclictest	23:17:00	0
4040364	99	48	39,6	cyclictest	55641	-21	kernelversion	00:35:21	0
4040364	99	48	38,7	cyclictest	4050793	-21	aten_r7power_en	19:50:17	0
4040364	99	48	36,8	cyclictest	4106847	-21	ntpq	21:50:34	0
4040364	99	48	36,8	cyclictest	0	-21	swapper/0	21:40:33	0
4040364	99	48	33,12	cyclictest	0	-21	swapper/0	00:15:40	0
4040364	99	48	30,11	cyclictest	4150278	-21	sh	22:40:26	0
4040366	99	47	40,5	cyclictest	4080668	-21	ntpq	21:20:35	1
4040366	99	47	40,4	cyclictest	0	-21	swapper/1	23:35:25	1
4040364	99	47	6,14	cyclictest	4063163	-21	latency_hist	20:40:01	0
4040364	99	47	38,7	cyclictest	4063456	-21	aten_r7power_po	20:40:16	0
4040364	99	47	38,7	cyclictest	4063456	-21	aten_r7power_po	20:40:16	0
4040364	99	47	31,14	cyclictest	4145490	-21	fschecks_count	22:35:19	0
4040364	99	47	26,19	cyclictest	0	-21	swapper/0	20:25:15	0
4040366	99	46	37,7	cyclictest	4097757	-21	gltestperf	21:40:21	1
4040366	99	46	36,8	cyclictest	4175823	-21	aten_r7power_vo	23:10:17	1
4040364	99	46	37,7	cyclictest	4059357	-21	kworker/u4:8-rpciod	20:55:16	0
4040364	99	46	36,7	cyclictest	4065953	-21	aten2__	20:50:19	0
4040364	99	46	36,7	cyclictest	4065953	-21	aten2__	20:50:18	0
4040364	99	46	30,7	cyclictest	4055558	-21	kworker/u4:6-xprtiod	20:10:19	0
4040366	99	45	36,7	cyclictest	4154111	-21	aten_r7power_en	22:45:17	1
4040364	99	45	36,6	cyclictest	4084296	-21	aten_r7power_en	21:25:17	0
4040364	99	45	34,8	cyclictest	4040827	-21	fschecks_time	19:10:19	0
4040366	99	44	37,5	cyclictest	4065748	-21	kworker/u4:3+rpciod	20:55:17	1
4040366	99	44	37,5	cyclictest	4053021	-21	kworker/u4:2+rpciod	22:00:18	1
4040366	99	44	36,6	cyclictest	4137284	-21	/usr/sbin/munin	22:25:31	1
4040366	99	44	36,6	cyclictest	4094128	-21	unixbench_multi	21:35:38	1
4040366	99	44	35,7	cyclictest	4066233	-21	fschecks_count	20:50:23	1
4040366	99	44	35,7	cyclictest	4066233	-21	fschecks_count	20:50:23	1
4040366	99	44	34,7	cyclictest	0	-21	swapper/1	21:50:25	1
4040364	99	44	35,6	cyclictest	0	-21	swapper/0	23:30:21	0
4040364	99	44	27,13	cyclictest	0	-21	swapper/0	21:45:14	0
4040366	99	43	36,5	cyclictest	0	-21	swapper/1	19:10:01	1
4040366	99	43	35,6	cyclictest	50994	-21	df_abs	00:30:17	1
4040366	99	43	35,6	cyclictest	4112191	-21	kworker/u4:3+events_unbound	22:13:15	1
4040366	99	43	35,6	cyclictest	4084360	-21	aten_r7power_vo	21:25:17	1
4040366	99	43	35,5	cyclictest	33913	-21	fschecks_time	00:10:21	1
4040366	99	43	34,7	cyclictest	4171561	-21	cpu	23:05:17	1
4040366	99	43	34,7	cyclictest	4132504	-21	fschecks_time	22:20:19	1
4040364	99	43	36,5	cyclictest	4054691	-21	df_abs	20:05:18	0
4040364	99	43	36,5	cyclictest	4054691	-21	df_abs	20:05:18	0
4040366	99	42	36,4	cyclictest	4061009	-21	df_abs	20:30:16	1
4040366	99	42	32,8	cyclictest	4052794	-21	threads	19:55:36	1
4040366	99	42	32,8	cyclictest	4046768	-21	latency_hist	19:35:01	1
4040364	99	42	32,8	cyclictest	4043431	-21	gltestperf	19:20:20	0
4040364	99	42	29,7	cyclictest	0	-21	swapper/0	21:00:35	0
4040366	99	41	34,4	cyclictest	0	-21	swapper/1	20:20:13	1
4040366	99	40	33,5	cyclictest	4059358	-21	kworker/u4:9+rpciod	20:25:36	1
4040366	99	40	32,6	cyclictest	4040290	-21	kworker/u4:4+rpciod	19:10:14	1
4040366	99	40	29,8	cyclictest	0	-21	swapper/1	19:20:15	1
4040364	99	40	30,7	cyclictest	0	-21	swapper/0	19:45:36	0
4040366	99	39	31,6	cyclictest	4055557	-21	kworker/u4:5+rpciod	20:10:20	1
4040366	99	39	30,6	cyclictest	4047972	-21	kworker/u4:14+rpciod	19:45:17	1
4040366	99	39	29,8	cyclictest	4048409	-21	df_abs	19:40:19	1
4040366	99	37	30,4	cyclictest	0	-21	swapper/1	20:35:36	1
4040366	99	37	25,10	cyclictest	0	-21	swapper/1	19:50:20	1
4040364	99	33	24,6	cyclictest	0	-21	swapper/0	19:10:01	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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