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 Fri Nov 28, 2025 12:44:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2655902	99	149	134,10	cyclictest	2740094	-21	kworker/u4:5+events_unbound	11:10:35	1
2655902	99	111	100,8	cyclictest	2729464	-21	kworker/u4:3+events_unbound	10:15:31	1
2655902	99	108	100,6	cyclictest	2799324	-21	kworker/u4:16+events_unbound	12:05:44	1
2655902	99	105	94,9	cyclictest	2746802	-21	kworker/u4:1+events_unbound	10:45:31	1
2655900	99	95	85,7	cyclictest	2770287	-21	kworker/u4:1+events_unbound	11:15:41	0
2655902	99	93	85,5	cyclictest	2678025	-21	kworker/u4:3+events_unbound	10:00:26	1
2655902	99	91	84,5	cyclictest	2813905	-21	kworker/u4:2+events_unbound	12:30:50	1
2655900	99	90	80,7	cyclictest	2729464	-21	kworker/u4:3+events_unbound	10:15:27	0
2655900	99	84	74,8	cyclictest	2678025	-21	kworker/u4:3+events_unbound	10:00:29	0
2655902	99	83	75,6	cyclictest	2684454	-21	kworker/u4:12+events_unbound	10:05:27	1
2655902	99	83	75,6	cyclictest	2684454	-21	kworker/u4:12+events_unbound	10:05:27	1
2655902	99	82	72,7	cyclictest	2746802	-21	kworker/u4:1+events_unbound	10:40:30	1
2655900	99	82	75,5	cyclictest	2796262	-21	kworker/u4:12+events_unbound	11:55:43	0
2655900	99	80	73,5	cyclictest	2760285	-21	kworker/u4:3+events_unbound	11:05:33	0
2655902	99	79	69,7	cyclictest	53	-21	kswapd0	10:25:34	1
2655902	99	79	69,7	cyclictest	53	-21	kswapd0	10:25:33	1
2655900	99	78	69,7	cyclictest	2746802	-21	kworker/u4:1+events_unbound	11:00:34	0
2655900	99	78	69,7	cyclictest	2746802	-21	kworker/u4:1+events_unbound	11:00:33	0
2655900	99	78	38,37	cyclictest	2704821	-21	if_eth0	09:35:22	0
2655900	99	77	69,6	cyclictest	2786339	-21	kworker/u4:12+events_unbound	11:45:46	0
2655900	99	77	68,6	cyclictest	2663655	-21	kworker/u4:3+events_unbound	08:25:09	0
2655902	99	76	65,7	cyclictest	2679302	-21	kworker/u4:7+events_unbound	08:40:14	1
2655902	99	76	39,4	cyclictest	0	-21	swapper/1	12:15:33	1
2655900	99	76	64,9	cyclictest	53	-21	kswapd0	10:30:35	0
2655902	99	75	65,7	cyclictest	53	-21	kswapd0	11:30:38	1
2655900	99	74	65,6	cyclictest	2776013	-21	kworker/u4:6+events_unbound	11:25:44	0
2655902	99	73	66,5	cyclictest	2773180	-21	kworker/u4:2+events_unbound	11:45:41	1
2655900	99	73	39,5	cyclictest	2672075	-21	fschecks_time	08:10:20	0
2655902	99	72	64,6	cyclictest	2820631	-21	kworker/u4:12+events_unbound	12:35:54	1
2655902	99	72	63,7	cyclictest	2753770	-21	kworker/u4:16+events_unbound	10:55:39	1
2655900	99	72	39,31	cyclictest	2714103	-21	aten_r7power_cu	09:50:16	0
2655900	99	72	39,31	cyclictest	0	-21	swapper/0	09:10:16	0
2655900	99	70	58,9	cyclictest	2687044	-21	kworker/u4:14+events_unbound	09:20:19	0
2655900	99	69	58,9	cyclictest	2745802	-21	sshd	10:35:33	0
2655900	99	69	34,7	cyclictest	2662713	-21	cut	07:35:20	0
2655900	99	68	60,6	cyclictest	2681889	-21	kworker/u4:11+events_unbound	09:30:22	0
2655900	99	68	56,9	cyclictest	2678026	-21	kworker/u4:4+events_unbound	09:15:14	0
2655900	99	68	35,5	cyclictest	2812237	-21	aten_r7power_vo	12:15:21	0
2655900	99	68	32,8	cyclictest	2687083	-21	diskmemload	11:35:20	0
2655902	99	67	60,5	cyclictest	2687045	-21	kworker/u4:15+events_unbound	09:25:18	1
2655902	99	67	59,6	cyclictest	2657122	-21	kworker/u4:12+events_unbound	07:24:57	1
2655902	99	67	57,7	cyclictest	2685764	-21	kworker/u4:2+events_unbound	09:55:27	1
2655900	99	67	59,5	cyclictest	2702784	-21	kworker/u4:1+events_unbound	09:40:26	0
2655902	99	66	60,4	cyclictest	2663660	-21	kworker/u4:8+events_unbound	07:54:59	1
2655902	99	66	60,4	cyclictest	2663660	-21	kworker/u4:8+events_unbound	07:54:59	1
2655902	99	66	57,7	cyclictest	2709581	-21	kworker/u4:5+events_unbound	09:45:22	1
2655902	99	66	57,6	cyclictest	2655815	-21	kworker/u4:2+events_unbound	07:19:56	1
2655902	99	66	56,8	cyclictest	2679302	-21	kworker/u4:7+events_unbound	08:55:13	1
2655900	99	66	43,6	cyclictest	2702785	-21	kworker/u4:4+events_unbound	10:10:31	0
2655900	99	66	35,7	cyclictest	2697741	-21	aten_r7power_en	09:25:16	0
2655900	99	66	32,5	cyclictest	2820629	-21	kworker/u4:7-rpciod	12:35:00	0
2655902	99	63	54,6	cyclictest	2654592	-21	kworker/u4:6+events_unbound	07:29:58	1
2655902	99	63	52,7	cyclictest	2740096	-21	kworker/u4:8+events_unbound	10:30:28	1
2655900	99	61	52,7	cyclictest	53	-21	kswapd0	10:50:37	0
2655902	99	60	45,5	cyclictest	2658405	-21	kworker/u4:13+events_unbound	08:35:10	1
2655902	99	59	51,6	cyclictest	2658405	-21	kworker/u4:13+events_unbound	08:20:08	1
2655902	99	59	50,7	cyclictest	2732872	-21	kworker/u4:10+events_unbound	10:20:32	1
2655902	99	59	50,6	cyclictest	2799323	-21	kworker/u4:14+events_unbound	12:00:47	1
2655902	99	58	49,6	cyclictest	2654591	-21	kworker/u4:4+events_unbound	07:40:00	1
2655902	99	57	50,5	cyclictest	2773185	-21	kworker/u4:9+events_unbound	11:20:36	1
2655900	99	57	48,6	cyclictest	2670285	-21	kworker/u4:4+events_unbound	08:05:08	0
2655900	99	57	45,9	cyclictest	2685764	-21	kworker/u4:2+events_unbound	09:55:24	0
2655902	99	56	48,6	cyclictest	2782965	-21	kworker/u4:0+events_unbound	11:35:44	1
2655902	99	56	47,7	cyclictest	2658405	-21	kworker/u4:13+events_unbound	08:45:13	1
2655900	99	56	41,6	cyclictest	2746804	-21	kworker/u4:8+events_unbound	10:55:33	0
2655900	99	55	46,7	cyclictest	2685764	-21	kworker/u4:2+events_unbound	10:05:30	0
2655900	99	55	46,7	cyclictest	2685764	-21	kworker/u4:2+events_unbound	10:05:29	0
2655902	99	54	43,9	cyclictest	2678025	-21	kworker/u4:3+events_unbound	08:50:13	1
2655900	99	54	35,15	cyclictest	53	-21	kswapd0	12:05:06	0
2655902	99	53	46,5	cyclictest	2715297	-21	/usr/sbin/munin	09:50:45	1
2655902	99	53	44,7	cyclictest	2658405	-21	kworker/u4:13+events_unbound	08:15:09	1
2655902	99	53	44,7	cyclictest	2654592	-21	kworker/u4:6+events_unbound	08:10:09	1
2655902	99	53	43,6	cyclictest	2806554	-21	kworker/u4:8+events_unbound	12:10:48	1
2655900	99	53	38,9	cyclictest	2732871	-21	kworker/u4:7-rpciod	10:21:39	0
2655902	99	52	41,7	cyclictest	2771905	-21	fschecks_count	11:15:20	1
2655900	99	52	45,5	cyclictest	1056	-21	lldpd	07:49:45	0
2655902	99	51	41,7	cyclictest	2797917	-21	df_abs	11:55:16	1
2655900	99	51	44,5	cyclictest	2813911	-21	kworker/u4:10+events_unbound	12:20:51	0
2655900	99	51	43,5	cyclictest	2662032	-21	/usr/sbin/munin	07:30:37	0
2655900	99	51	42,7	cyclictest	2770287	-21	kworker/u4:1+events_unbound	11:20:42	0
2655900	99	51	30,19	cyclictest	2679862	-21	fschecks_time	08:40:20	0
2655902	99	50	43,5	cyclictest	2687044	-21	kworker/u4:14+events_unbound	09:20:17	1
2655902	99	50	42,5	cyclictest	2708008	-21	cut	09:40:20	1
2655902	99	50	39,8	cyclictest	2687092	-21	idleruntime-cro	09:10:00	1
2655902	99	50	39,8	cyclictest	2681889	-21	kworker/u4:11+events_unbound	09:00:15	1
2655900	99	50	42,6	cyclictest	2673253	-21	df_abs	08:15:16	0
2655900	99	50	41,6	cyclictest	2669457	-21	fschecks_count	08:00:18	0
2655902	99	49	43,4	cyclictest	2704564	-21	sh	09:35:19	1
2655902	99	49	43,4	cyclictest	2702054	-21	timerandwakeup	09:30:39	1
2655902	99	49	42,5	cyclictest	2687764	-21	/usr/sbin/munin	09:10:18	1
2655902	99	49	41,5	cyclictest	2668169	-21	fschecks_count	07:55:24	1
2655902	99	49	40,7	cyclictest	0	-21	swapper/1	11:25:31	1
2655902	99	49	39,8	cyclictest	2745816	-21	proc_pri	10:35:35	1
2655902	99	49	39,8	cyclictest	2670472	-21	systemd	08:05:05	1
2655900	99	49	41,5	cyclictest	2711063	-21	df_abs	09:45:18	0
2655900	99	49	28,13	cyclictest	0	-21	swapper/0	08:25:01	0
2655902	99	48	41,5	cyclictest	2815498	-21	aten_r7power_cu	12:20:16	1
2655902	99	48	41,5	cyclictest	1056	-21	lldpd	09:18:30	1
2655900	99	48	41,5	cyclictest	2677216	-21	fschecks_count	08:30:30	0
2655900	99	48	39,7	cyclictest	2818737	-21	aten2__	12:25:14	0
2655902	99	47	39,6	cyclictest	2766512	-21	unixbench-2d	11:05:45	1
2655902	99	47	39,5	cyclictest	2819106	-21	gltestperf	12:25:18	1
2655902	99	47	35,8	cyclictest	2666434	-21	latency_hist	07:50:02	1
2655900	99	47	41,4	cyclictest	2781928	-21	mailstats	11:30:40	0
2655900	99	47	41,4	cyclictest	2749363	-21	cat	10:40:42	0
2655902	99	46	39,5	cyclictest	2687083	-21	diskmemload	10:10:30	1
2655902	99	46	39,5	cyclictest	2676925	-21	systemd	08:30:10	1
2655902	99	46	38,6	cyclictest	2788868	-21	timerandwakeup	11:40:39	1
2655900	99	46	38,6	cyclictest	2801600	-21	gltestperf	12:00:22	0
2655900	99	46	38,5	cyclictest	2738971	-21	/usr/sbin/munin	10:25:32	0
2655900	99	46	38,5	cyclictest	2738971	-21	/usr/sbin/munin	10:25:32	0
2655900	99	46	37,7	cyclictest	2825716	-21	gltestperf	12:35:22	0
2655900	99	46	37,6	cyclictest	2658510	-21	latency_hist	07:20:01	0
2655900	99	46	36,8	cyclictest	2788014	-21	cpu	11:40:19	0
2655900	99	46	36,7	cyclictest	2667681	-21	latency_hist	07:55:01	0
2655900	99	46	36,7	cyclictest	2667681	-21	latency_hist	07:55:00	0
2655900	99	46	35,8	cyclictest	2754805	-21	cron	10:50:01	0
2655902	99	45	38,5	cyclictest	0	-21	swapper/1	11:00:33	1
2655902	99	45	38,5	cyclictest	0	-21	swapper/1	11:00:32	1
2655902	99	45	35,7	cyclictest	2670199	-21	unixbench_multi	08:00:37	1
2655902	99	44	37,5	cyclictest	2657194	-21	latency_hist	07:15:01	1
2655902	99	44	36,6	cyclictest	2746804	-21	kworker/u4:8+events_unbound	10:50:34	1
2655900	99	44	36,5	cyclictest	2808891	-21	/usr/sbin/munin	12:10:24	0
2655900	99	44	35,7	cyclictest	2686001	-21	aten2__	09:05:16	0
2655900	99	44	34,8	cyclictest	2664291	-21	gltestperf	07:40:22	0
2655902	99	43	37,4	cyclictest	2675646	-21	systemd	08:25:09	1
2655902	99	43	35,6	cyclictest	2795061	-21	ps	11:50:36	1
2655900	99	43	35,6	cyclictest	2657169	-21	idleruntime-cro	07:15:01	0
2655900	99	43	35,5	cyclictest	2794460	-21	df_abs	11:50:17	0
2655900	99	43	34,6	cyclictest	0	-21	swapper/0	07:10:00	0
2655900	99	42	35,5	cyclictest	2684499	-21	munin-run	09:00:01	0
2655900	99	42	33,6	cyclictest	2669024	-21	idleruntime-cro	08:00:00	0
2655900	99	42	32,8	cyclictest	2685393	-21	grep	09:00:49	0
2655900	99	42	25,11	cyclictest	0	-21	swapper/0	07:30:01	0
2655902	99	41	35,4	cyclictest	0	-21	swapper/1	07:35:00	1
2655900	99	41	35,4	cyclictest	2769185	-21	if_eth0	11:10:22	0
2655900	99	41	34,5	cyclictest	2658890	-21	fschecks_count	07:20:20	0
2655900	99	41	33,5	cyclictest	2658405	-21	kworker/u4:13-rpciod	08:35:22	0
2655900	99	40	18,19	cyclictest	2681178	-21	head	08:45:19	0
2655902	99	39	31,5	cyclictest	2663660	-21	kworker/u4:8-rpciod	07:40:17	1
2655900	99	37	30,4	cyclictest	0	-21	swapper/0	08:50:11	0
2655902	99	32	20,9	cyclictest	2656013	-21	ls	07:10:02	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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