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 792 highest latencies:

System rack7slot2.osadl.org (updated Tue Apr 21, 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
2684791	99	87	78,5	cyclictest	2802093	-21	kworker/u4:13+events_unbound	11:00:01	0
2684791	99	85	77,6	cyclictest	2792590	-21	kworker/u4:10+events_unbound	11:05:02	0
2684791	99	84	4,49	cyclictest	2795201	-21	apt-get	10:40:13	0
2684791	99	82	63,15	cyclictest	2877426	-21	ssh	12:15:11	0
2684791	99	82	45,31	cyclictest	53	-21	kswapd0	10:25:08	0
2684791	99	80	70,7	cyclictest	2892529	-21	kworker/u4:0+events_unbound	12:40:00	0
2684793	99	77	69,6	cyclictest	2722881	-21	kworker/u4:8+events_unbound	09:29:48	1
2684791	99	77	70,5	cyclictest	2784361	-21	kworker/u4:0+events_unbound	10:34:58	0
2684793	99	73	66,4	cyclictest	2735708	-21	kworker/u4:2+events_unbound	09:35:01	1
2684793	99	73	66,4	cyclictest	2735708	-21	kworker/u4:2+events_unbound	09:35:00	1
2684791	99	73	65,5	cyclictest	2686016	-21	kworker/u4:6+events_unbound	08:30:01	0
2684791	99	72	56,13	cyclictest	53	-21	kswapd0	11:40:11	0
2684791	99	71	63,6	cyclictest	2832268	-21	kworker/u4:4+events_unbound	12:00:13	0
2684791	99	69	6,61	cyclictest	0	-21	swapper/0	09:50:38	0
2684793	99	68	60,6	cyclictest	2832269	-21	kworker/u4:9+events_unbound	11:55:12	1
2684791	99	67	55,9	cyclictest	2866710	-21	kworker/u4:7+events_unbound	12:25:20	0
2684791	99	67	51,13	cyclictest	53	-21	kswapd0	10:50:08	0
2684791	99	64	54,6	cyclictest	2755668	-21	sh	09:55:17	0
2684793	99	63	55,6	cyclictest	2774471	-21	/usr/sbin/munin	10:15:38	1
2684791	99	63	56,5	cyclictest	2832268	-21	kworker/u4:4+events_unbound	12:10:16	0
2684791	99	61	54,5	cyclictest	2684790	-21	cyclictest	09:49:58	0
2684791	99	59	51,6	cyclictest	2711670	-21	kworker/u4:5+events_unbound	08:59:41	0
2684791	99	59	51,6	cyclictest	2711670	-21	kworker/u4:5+events_unbound	08:59:41	0
2684791	99	59	41,10	cyclictest	0	-21	swapper/0	07:35:13	0
2684793	99	57	48,6	cyclictest	53	-21	kswapd0	10:00:01	1
2684791	99	57	49,6	cyclictest	2683514	-21	kworker/u4:1+events_unbound	07:20:00	0
2684793	99	56	16,13	cyclictest	2886886	-21	ntpq	12:25:30	1
2684793	99	55	17,12	cyclictest	2717752	-21	ssh	09:11:25	1
2684791	99	55	47,6	cyclictest	2825806	-21	/usr/sbin/munin	11:15:18	0
2684791	99	55	47,6	cyclictest	2706557	-21	kworker/u4:14+events_unbound	08:50:01	0
2684793	99	54	45,7	cyclictest	398	-21	systemd-logind	11:15:04	1
2684793	99	54	40,11	cyclictest	0	-21	swapper/1	12:10:12	1
2684791	99	54	37,9	cyclictest	256	50	irq/23-42890000.ethernet	11:00:35	0
2684791	99	54	37,9	cyclictest	256	50	irq/23-42890000.ethernet	11:00:34	0
2684791	99	54	33,6	cyclictest	2761032	-21	sendmail_mailqu	10:00:36	0
2684793	99	53	46,5	cyclictest	2715638	-21	diskmemload	09:24:47	1
2684793	99	53	46,5	cyclictest	2706560	-21	kworker/u4:18+events_unbound	08:54:41	1
2684793	99	53	46,5	cyclictest	2684790	-21	cyclictest	11:05:28	1
2684793	99	53	45,5	cyclictest	2760373	-21	fschecks_count	10:00:19	1
2684793	99	53	44,7	cyclictest	53	-21	kswapd0	11:40:00	1
2684793	99	53	42,8	cyclictest	2808925	-21	ld	10:55:27	1
2684791	99	53	46,5	cyclictest	2866709	-21	kworker/u4:6+events_unbound	12:05:14	0
2684791	99	53	46,5	cyclictest	2715638	-21	diskmemload	09:24:46	0
2684791	99	53	44,7	cyclictest	2832269	-21	kworker/u4:9+events_unbound	11:25:06	0
2684793	99	52	19,20	cyclictest	0	-21	swapper/1	12:35:23	1
2684791	99	52	46,4	cyclictest	2842964	-21	aten_r7power_en	11:35:17	0
2684791	99	52	45,5	cyclictest	2766403	-21	kworker/u4:15+events_unbound	10:15:20	0
2684791	99	52	41,8	cyclictest	2799865	-21	cut	10:45:20	0
2684791	99	52	15,24	cyclictest	2742481	-21	ssh	09:40:14	0
2684793	99	51	44,5	cyclictest	2753564	-21	kworker/u4:0+events_unbound	09:55:00	1
2684793	99	51	41,7	cyclictest	2750920	-21	modprobe	09:50:00	1
2684793	99	51	41,6	cyclictest	2855516	-21	latency_hist	11:50:02	1
2684793	99	51	11,14	cyclictest	2788321	-21	ssh	10:31:27	1
2684793	99	51	10,14	cyclictest	2833161	-21	ssh	11:23:51	1
2684791	99	51	27,20	cyclictest	0	-21	swapper/0	11:20:14	0
2684793	99	50	39,8	cyclictest	53	-21	kswapd0	12:15:12	1
2684793	99	50	38,9	cyclictest	2742898	-21	gltestperf	09:40:19	1
2684793	99	50	20,9	cyclictest	2848068	-21	sh	11:40:40	1
2684793	99	50	11,14	cyclictest	2857284	-21	ssh	11:51:00	1
2684791	99	50	41,6	cyclictest	2770183	-21	who	10:10:40	0
2684791	99	50	35,4	cyclictest	2832270	-21	kworker/u4:10+events_unbound	11:55:03	0
2684793	99	49	40,7	cyclictest	2713026	-21	kworker/u4:8+events_unbound	09:00:01	1
2684793	99	49	40,7	cyclictest	2713026	-21	kworker/u4:8+events_unbound	09:00:00	1
2684793	99	49	18,8	cyclictest	0	-21	swapper/1	12:05:25	1
2684793	99	49	10,15	cyclictest	2797168	-21	ssh	10:41:42	1
2684791	99	49	9,28	cyclictest	2684790	-21	cyclictest	07:10:01	0
2684791	99	49	39,7	cyclictest	2764595	-21	aten_r7power_vo	10:05:15	0
2684793	99	48	8,16	cyclictest	2784694	-21	ssh	10:27:38	1
2684793	99	48	39,7	cyclictest	2838943	-21	gltestperf	11:30:20	1
2684793	99	48	39,5	cyclictest	0	-21	swapper/1	10:05:19	1
2684793	99	48	39,5	cyclictest	0	-21	swapper/1	09:36:23	1
2684793	99	48	38,8	cyclictest	2881996	-21	sshd	12:20:17	1
2684793	99	48	38,7	cyclictest	0	-21	swapper/1	09:15:27	1
2684793	99	48	10,11	cyclictest	2865952	-21	ssh	12:00:58	1
2684791	99	48	37,8	cyclictest	2701444	-21	systemd	08:14:34	0
2684791	99	48	29,16	cyclictest	0	-21	swapper/0	12:20:17	0
2684793	99	47	39,6	cyclictest	2688607	-21	systemd	07:24:26	1
2684793	99	47	10,13	cyclictest	2799458	-21	ssh	10:45:05	1
2684793	99	47	10,12	cyclictest	2771080	-21	ssh	10:12:03	1
2684791	99	47	41,4	cyclictest	2734634	-21	mailstats	09:30:37	0
2684791	99	47	41,4	cyclictest	2734634	-21	mailstats	09:30:36	0
2684791	99	47	40,5	cyclictest	2792108	-21	unixbench_multi	10:35:42	0
2684791	99	47	40,5	cyclictest	2777988	-21	sshd	10:20:17	0
2684791	99	47	38,6	cyclictest	2702775	-21	sendmail	08:20:00	0
2684793	99	46	39,5	cyclictest	2821283	-21	aten_r7power_en	11:10:16	1
2684793	99	46	39,5	cyclictest	2781871	-21	rm	10:25:01	1
2684793	99	46	39,5	cyclictest	2689039	-21	fschecks_count	07:25:19	1
2684793	99	46	33,10	cyclictest	0	-21	swapper/1	11:05:01	1
2684793	99	46	33,10	cyclictest	0	-21	swapper/1	11:05:00	1
2684793	99	46	18,9	cyclictest	378	-21	dbus-daemon	08:34:37	1
2684793	99	46	12,9	cyclictest	2838097	-21	ssh	11:29:49	1
2684791	99	46	37,7	cyclictest	2890885	-21	tune2fs	12:30:20	0
2684791	99	46	37,7	cyclictest	2838555	-21	aten2__	11:30:14	0
2684791	99	46	34,5	cyclictest	2788800	-21	kworker/u4:1+events_unbound	11:10:05	0
2684793	99	45	36,6	cyclictest	2692748	-21	aten2__	07:40:17	1
2684793	99	45	35,6	cyclictest	2703848	-21	timerwakeupswit	08:20:35	1
2684791	99	45	39,4	cyclictest	2696723	-21	df_abs	07:55:16	0
2684791	99	45	38,5	cyclictest	2710396	-21	kworker/u4:1+events_unbound	09:04:44	0
2684791	99	45	38,5	cyclictest	2694316	-21	fschecks_time	07:45:19	0
2684791	99	45	38,5	cyclictest	2694316	-21	fschecks_time	07:45:19	0
2684791	99	45	36,7	cyclictest	0	-21	swapper/0	11:50:17	0
2684791	99	45	34,8	cyclictest	315	-21	systemd-journal	09:14:45	0
2684793	99	44	8,30	cyclictest	0	-21	swapper/1	12:30:33	1
2684793	99	44	8,12	cyclictest	2794531	-21	ssh	10:39:30	1
2684793	99	44	6,14	cyclictest	2804618	-21	ntpq	10:50:31	1
2684793	99	44	32,7	cyclictest	0	-21	swapper/1	08:50:01	1
2684791	99	44	32,9	cyclictest	0	-21	swapper/0	09:25:22	0
2684793	99	43	37,4	cyclictest	2698937	-21	munin-plugin-st	08:05:00	1
2684793	99	43	36,5	cyclictest	2694256	-21	fschecks_count	07:45:20	1
2684793	99	43	36,5	cyclictest	2694256	-21	fschecks_count	07:45:19	1
2684791	99	43	36,5	cyclictest	2710623	-21	grep	08:50:16	0
2684791	99	43	36,5	cyclictest	2690845	-21	cat	07:30:35	0
2684791	99	43	35,5	cyclictest	0	-21	swapper/0	09:10:00	0
2684791	99	43	34,7	cyclictest	2699469	-21	gltestperf	08:05:19	0
2684791	99	43	33,8	cyclictest	2851637	-21	aten_r7power_vo	11:45:18	0
2684791	99	43	33,7	cyclictest	0	-21	swapper/0	07:10:15	0
2684793	99	42	35,5	cyclictest	2706969	-21	df_abs	08:35:17	1
2684793	99	42	35,5	cyclictest	2700754	-21	grep	08:10:19	1
2684793	99	42	31,8	cyclictest	2697422	-21	timerwakeupswit	07:55:37	1
2684791	99	42	34,5	cyclictest	2709161	-21	munin-plugin-st	08:45:00	0
2684793	99	41	32,6	cyclictest	2700225	-21	grep	08:10:01	1
2684793	99	41	29,7	cyclictest	0	-21	swapper/1	09:05:20	1
2684791	99	41	36,4	cyclictest	2720534	-21	aten_r7power_po	09:15:17	0
2684791	99	41	34,5	cyclictest	2686016	-21	kworker/u4:6-rpciod	08:35:00	0
2684791	99	41	33,6	cyclictest	2715594	-21	kworker/u4:0+events_unbound	09:35:34	0
2684793	99	40	33,5	cyclictest	2692538	-21	munin-plugin-st	07:39:59	1
2684791	99	40	31,6	cyclictest	2702990	-21	aten_r7power_cu	08:20:15	0
2684791	99	40	30,8	cyclictest	2684790	-21	cyclictest	07:20:37	0
2684791	99	39	32,4	cyclictest	2683516	-21	kworker/u4:7-rpciod	07:50:37	0
2684791	99	39	30,6	cyclictest	0	-21	swapper/0	08:35:20	0
2684791	99	39	30,6	cyclictest	0	-21	swapper/0	08:00:18	0
2684791	99	39	28,7	cyclictest	0	-21	swapper/0	07:40:40	0
2684793	99	38	31,5	cyclictest	2708794	-21	sendmail_mailqu	08:40:38	1
2684793	99	38	31,4	cyclictest	0	-21	swapper/1	07:30:29	1
2684793	99	38	30,6	cyclictest	0	-21	swapper/1	07:15:16	1
2684793	99	38	30,5	cyclictest	0	-21	swapper/1	08:15:37	1
2684793	99	38	29,7	cyclictest	0	-21	swapper/1	08:25:23	1
2684793	99	38	29,6	cyclictest	0	-21	swapper/1	07:10:36	1
2684793	99	37	28,7	cyclictest	2713334	-21	aten_r7power_en	09:00:16	1
2684791	99	37	29,5	cyclictest	0	-21	swapper/0	07:25:24	0
2684793	99	35	25,7	cyclictest	0	-21	swapper/1	07:50:16	1
2684793	99	33	22,8	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