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 Thu Apr 09, 2026 12:44:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3039537	99	120	13,100	cyclictest	3039536	-21	basename	07:10:01	0
3039538	99	98	90,5	cyclictest	3047158	-21	kworker/u4:3+events_unbound	09:00:57	1
3039538	99	98	88,8	cyclictest	3040769	-21	kworker/u4:11+events_unbound	07:15:14	1
3039538	99	96	88,6	cyclictest	3061311	-21	kworker/u4:2+events_unbound	08:55:59	1
3039538	99	93	85,6	cyclictest	3164708	-21	kworker/u4:6+events_unbound	11:11:23	1
3039538	99	88	81,5	cyclictest	3077204	-21	kworker/u4:7+events_unbound	09:36:06	1
3039538	99	88	81,5	cyclictest	3077204	-21	kworker/u4:7+events_unbound	09:36:05	1
3039537	99	85	51,31	cyclictest	3075612	-21	kernelversion	09:15:21	0
3039538	99	84	71,9	cyclictest	53	-21	kswapd0	11:50:10	1
3039537	99	83	75,6	cyclictest	3094910	-21	kworker/u4:13+events_unbound	09:51:09	0
3039537	99	82	46,33	cyclictest	0	-21	swapper/0	11:05:35	0
3039538	99	81	74,5	cyclictest	2826644	-21	kworker/u4:7+events_unbound	07:45:02	1
3039538	99	80	72,6	cyclictest	3077205	-21	kworker/u4:9+events_unbound	09:21:02	1
3039538	99	76	68,6	cyclictest	3195014	-21	kworker/u4:3+events_unbound	11:41:27	1
3039537	99	76	40,5	cyclictest	3063579	-21	cat	08:40:34	0
3039538	99	73	58,10	cyclictest	3209971	-21	modprobe	11:49:59	1
3039537	99	73	40,4	cyclictest	3145620	-21	ld	10:35:27	0
3039537	99	72	35,7	cyclictest	3223378	-21	aten_r7power_po	12:05:21	0
3039538	99	71	61,7	cyclictest	3212731	-21	kworker/u4:12+events_unbound	12:01:29	1
3039538	99	70	64,4	cyclictest	3238378	-21	kworker/u4:4+events_unbound	12:26:34	1
3039537	99	69	59,7	cyclictest	3056194	-21	kworker/u4:6+events_unbound	09:06:01	0
3039537	99	67	32,29	cyclictest	3223071	-21	munin-run	12:05:11	0
3039538	99	65	55,7	cyclictest	3086012	-21	kworker/u4:3+events_unbound	09:31:05	1
3039538	99	63	54,6	cyclictest	3024240	-21	kworker/u4:15+events_unbound	08:10:44	1
3039538	99	63	52,8	cyclictest	53	-21	kswapd0	11:40:01	1
3039537	99	62	52,7	cyclictest	2826644	-21	kworker/u4:7+events_unbound	07:30:25	0
3039538	99	61	53,6	cyclictest	3030686	-21	kworker/u4:13+events_unbound	07:25:17	1
3039537	99	61	54,5	cyclictest	3125353	-21	kworker/u4:7+events_unbound	10:16:12	0
3039538	99	60	54,4	cyclictest	3229607	-21	kworker/u4:2+events_unbound	12:16:31	1
3039537	99	60	51,7	cyclictest	3038267	-21	kworker/u4:2+events_unbound	07:10:15	0
3039537	99	60	36,13	cyclictest	0	-21	swapper/0	09:30:05	0
3039537	99	58	48,8	cyclictest	3190289	-21	systemd	11:26:24	0
3039537	99	58	40,4	cyclictest	3236955	-21	ntp_states	12:20:32	0
3039538	99	57	50,5	cyclictest	3182414	-21	kworker/u4:0+events_unbound	11:21:25	1
3039538	99	57	48,7	cyclictest	3214598	-21	ssh	11:55:06	1
3039538	99	57	46,8	cyclictest	3040767	-21	kworker/u4:8+events_unbound	07:35:28	1
3039538	99	57	45,8	cyclictest	0	-21	swapper/1	11:00:23	1
3039537	99	57	49,6	cyclictest	3233109	-21	/usr/sbin/munin	12:15:40	0
3039537	99	57	48,7	cyclictest	315	-21	systemd-journal	12:11:30	0
3039538	99	56	50,4	cyclictest	3169147	-21	kworker/u4:8+events_unbound	11:26:26	1
3039537	99	56	48,6	cyclictest	378	-21	dbus-daemon	10:26:12	0
3039537	99	56	48,6	cyclictest	3199006	-21	systemd	11:36:26	0
3039537	99	56	38,5	cyclictest	3067736	-21	sendmail	09:00:00	0
3039537	99	55	32,21	cyclictest	3057963	-21	fschecks_count	08:20:18	0
3039538	99	54	47,5	cyclictest	3052271	-21	kworker/u4:2+events_unbound	08:15:51	1
3039538	99	54	47,5	cyclictest	3052271	-21	kworker/u4:2+events_unbound	08:15:51	1
3039538	99	53	46,5	cyclictest	3052269	-21	kworker/u4:0+events_unbound	08:25:00	1
3039538	99	53	42,9	cyclictest	3061302	-21	systemd	08:30:55	1
3039538	99	53	42,9	cyclictest	3061302	-21	systemd	08:30:54	1
3039537	99	53	49,3	cyclictest	3151417	-21	kworker/u4:10+events_unbound	10:53:32	0
3039537	99	53	44,6	cyclictest	3047205	-21	idleruntime-cro	07:40:00	0
3039538	99	52	44,6	cyclictest	0	-21	swapper/1	09:40:37	1
3039537	99	52	45,5	cyclictest	3164055	-21	kworker/u4:5+events_unbound	11:01:22	0
3039537	99	52	45,5	cyclictest	3123275	-21	df_abs	10:10:17	0
3039537	99	52	38,9	cyclictest	3218345	-21	ssh	11:59:32	0
3039538	99	51	44,5	cyclictest	3223832	-21	kernelversion	12:05:27	1
3039538	99	51	44,5	cyclictest	3195015	-21	kworker/u4:4+events_unbound	11:34:00	1
3039538	99	51	44,5	cyclictest	3155847	-21	kworker/u4:0+events_unbound	10:56:18	1
3039538	99	51	44,5	cyclictest	3127482	-21	aten2__	10:15:16	1
3039538	99	51	39,9	cyclictest	53	-21	kswapd0	10:20:16	1
3039537	99	51	44,5	cyclictest	3153901	-21	df_abs	10:45:17	0
3039537	99	51	44,5	cyclictest	3086012	-21	kworker/u4:3+events_unbound	09:30:00	0
3039537	99	51	43,6	cyclictest	3077200	-21	kworker/u4:1+events_unbound	10:06:11	0
3039537	99	50	42,6	cyclictest	3107620	-21	kworker/u4:10+events_unbound	09:56:07	0
3039537	99	50	42,5	cyclictest	3056195	-21	kworker/u4:8+events_unbound	09:11:01	0
3039537	99	50	41,6	cyclictest	256	50	irq/23-42890000.ethernet	12:30:12	0
3039537	99	50	35,7	cyclictest	3164055	-21	kworker/u4:5+events_unbound	11:20:00	0
3039537	99	50	35,7	cyclictest	3164055	-21	kworker/u4:5+events_unbound	11:19:59	0
3039538	99	49	42,5	cyclictest	3075504	-21	gltestperf	09:15:20	1
3039538	99	49	41,6	cyclictest	3114658	-21	fschecks_count	10:00:18	1
3039538	99	49	41,6	cyclictest	3052820	-21	fschecks_count	08:00:24	1
3039538	99	49	41,5	cyclictest	3150167	-21	ntp_states	10:40:37	1
3039538	99	49	40,6	cyclictest	3124345	-21	unixbench_singl	10:10:40	1
3039538	99	49	40,6	cyclictest	0	-21	swapper/1	12:30:11	1
3039538	99	49	39,8	cyclictest	3039980	-21	fschecks_count	07:10:18	1
3039538	99	49	37,8	cyclictest	0	-21	swapper/1	10:25:06	1
3039538	99	49	36,11	cyclictest	3140921	-21	/usr/sbin/munin	10:30:19	1
3039538	99	49	35,10	cyclictest	0	-21	swapper/1	10:45:14	1
3039537	99	49	7,21	cyclictest	3163143	-21	ssh	10:55:28	0
3039537	99	49	42,5	cyclictest	3097361	-21	cut	09:40:19	0
3039537	99	49	40,7	cyclictest	3024240	-21	kworker/u4:15+events_unbound	08:50:58	0
3039538	99	48	42,4	cyclictest	3181139	-21	vmstat	11:15:41	1
3039538	99	48	42,4	cyclictest	3181139	-21	vmstat	11:15:40	1
3039538	99	48	41,5	cyclictest	3236734	-21	/usr/sbin/munin	12:20:22	1
3039538	99	48	40,6	cyclictest	3227549	-21	acpi	12:10:13	1
3039538	99	48	37,8	cyclictest	3062821	-21	aten2__	08:40:15	1
3039537	99	48	42,4	cyclictest	3140662	-21	aten_r7power_po	10:30:14	0
3039537	99	48	40,6	cyclictest	378	-21	dbus-daemon	11:31:25	0
3039537	99	48	39,7	cyclictest	378	-21	dbus-daemon	11:46:27	0
3039537	99	48	39,7	cyclictest	3042413	-21	aten_r7power_vo	07:20:15	0
3039537	99	48	37,7	cyclictest	0	-21	swapper/0	12:25:25	0
3039538	99	47	7,33	cyclictest	3110618	-21	ssh	09:55:24	1
3039538	99	47	40,5	cyclictest	3105978	-21	/usr/sbin/munin	09:50:18	1
3039538	99	47	39,6	cyclictest	3145459	-21	/usr/sbin/munin	10:35:20	1
3039538	99	47	38,6	cyclictest	3175169	-21	munin-plugin-st	11:09:59	1
3039537	99	47	26,12	cyclictest	3052307	-21	apt-get	08:00:07	0
3039538	99	46	39,5	cyclictest	3042564	-21	fschecks_count	07:20:17	1
3039538	99	46	39,5	cyclictest	3039534	-21	cyclictest	09:25:40	1
3039538	99	46	38,5	cyclictest	3062612	-21	sh	08:40:00	1
3039538	99	46	37,6	cyclictest	3071192	-21	kernelversion	09:10:22	1
3039537	99	46	40,4	cyclictest	3214347	-21	rm	11:55:01	0
3039537	99	46	39,5	cyclictest	3080343	-21	/usr/sbin/munin	09:20:40	0
3039537	99	46	38,6	cyclictest	3249193	-21	aten_r7power_vo	12:35:16	0
3039537	99	46	38,6	cyclictest	3060559	-21	fschecks_time	08:30:18	0
3039537	99	46	38,6	cyclictest	3060559	-21	fschecks_time	08:30:17	0
3039537	99	46	38,6	cyclictest	3047158	-21	kworker/u4:3+events_unbound	08:45:58	0
3039537	99	46	37,7	cyclictest	3102223	-21	sendmail_mailqu	09:45:37	0
3039537	99	46	27,15	cyclictest	3136039	-21	ssh	10:25:02	0
3039538	99	45	38,5	cyclictest	3159323	-21	unixbench_singl	10:50:38	1
3039538	99	45	36,6	cyclictest	3045558	-21	sendmail_mailqu	07:30:35	1
3039538	99	45	36,6	cyclictest	3042040	-21	kworker/u4:16+events_unbound	08:00:00	1
3039537	99	45	37,6	cyclictest	315	-21	systemd-journal	07:55:41	0
3039537	99	45	37,6	cyclictest	3092758	-21	sh	09:35:19	0
3039537	99	45	37,6	cyclictest	3092758	-21	sh	09:35:19	0
3039537	99	45	36,7	cyclictest	3184538	-21	fschecks_time	11:20:17	0
3039538	99	44	36,6	cyclictest	3077200	-21	kworker/u4:1+events_unbound	10:05:33	1
3039538	99	44	36,5	cyclictest	3101405	-21	aten_r7power_vo	09:45:16	1
3039538	99	44	35,6	cyclictest	3242111	-21	kworker/u4:11-xprtiod	12:35:26	1
3039538	99	44	32,9	cyclictest	3066445	-21	kworker/u4:14	08:55:00	1
3039538	99	44	32,7	cyclictest	0	-21	swapper/1	08:25:25	1
3039537	99	44	38,4	cyclictest	0	-21	swapper/0	10:40:28	0
3039537	99	44	37,5	cyclictest	3057513	-21	latency_hist	08:20:00	0
3039537	99	44	37,5	cyclictest	3057513	-21	latency_hist	08:19:59	0
3039537	99	44	35,7	cyclictest	3114929	-21	kernelversion	10:00:22	0
3039538	99	43	32,8	cyclictest	3049498	-21	threads	07:45:37	1
3039537	99	43	35,6	cyclictest	3059290	-21	fschecks_time	08:25:20	0
3039537	99	42	35,5	cyclictest	3047705	-21	fschecks_time	07:40:21	0
3039537	99	42	34,6	cyclictest	3043642	-21	aten_r7power_po	07:25:14	0
3039537	99	42	32,8	cyclictest	3176096	-21	/usr/sbin/munin	11:10:24	0
3039538	99	41	32,6	cyclictest	0	-21	swapper/1	09:10:00	1
3039537	99	41	33,6	cyclictest	3050032	-21	aten_r7power_po	07:50:15	0
3039537	99	41	32,6	cyclictest	0	-21	swapper/0	07:45:35	0
3039537	99	41	31,7	cyclictest	0	-21	swapper/0	11:40:01	0
3039538	99	40	27,10	cyclictest	3054545	-21	ps	08:05:35	1
3039538	99	39	27,8	cyclictest	0	-21	swapper/1	07:50:36	1
3039537	99	39	32,5	cyclictest	3054979	-21	latency_hist	08:10:00	0
3039537	99	39	31,6	cyclictest	3068713	-21	switchtime	09:00:43	0
3039537	99	38	16,20	cyclictest	3061828	-21	fschecks_time	08:35:19	0
3039538	99	37	28,6	cyclictest	0	-21	swapper/1	08:45:17	1
3039537	99	37	28,6	cyclictest	0	-21	swapper/0	08:10:15	0
3039537	99	37	25,8	cyclictest	0	-21	swapper/0	07:15:14	0
3039538	99	34	26,6	cyclictest	0	-21	swapper/1	07:10:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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