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 May 01, 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
2874023	99	121	112,7	cyclictest	3046469	-21	kworker/u4:9+events_unbound	23:53:00	0
2874023	99	115	76,33	cyclictest	53	-21	kswapd0	22:15:10	0
2874023	99	113	102,8	cyclictest	3003089	-21	kworker/u4:8+events_unbound	23:22:58	0
2874023	99	101	92,6	cyclictest	3006878	-21	kworker/u4:12+events_unbound	23:27:58	0
2874023	99	99	90,5	cyclictest	0	-21	swapper/0	23:10:27	0
2874023	99	95	85,7	cyclictest	53	-21	kswapd0	21:15:12	0
2874023	99	91	84,5	cyclictest	2875245	-21	kworker/u4:8+events_unbound	20:00:18	0
2874023	99	90	82,6	cyclictest	3006877	-21	kworker/u4:11+events_unbound	23:07:55	0
2874023	99	82	75,5	cyclictest	2890665	-21	kworker/u4:0+events_unbound	21:02:37	0
2874023	99	81	73,6	cyclictest	3033230	-21	kworker/u4:3+events_unbound	00:13:03	0
2874023	99	81	72,7	cyclictest	2911807	-21	kworker/u4:3+events_unbound	21:52:41	0
2874024	99	80	67,8	cyclictest	2875245	-21	kworker/u4:8-rpciod	21:05:11	1
2874023	99	80	72,6	cyclictest	3006878	-21	kworker/u4:12+events_unbound	23:17:56	0
2874023	99	76	68,6	cyclictest	2955228	-21	kworker/u4:7+events_unbound	22:07:45	0
2874023	99	73	59,5	cyclictest	2875244	-21	kworker/u4:7+events_unbound	19:20:01	0
2874023	99	73	53,6	cyclictest	2946403	-21	kworker/u4:4+events_unbound	22:10:42	0
2874023	99	72	64,6	cyclictest	2925003	-21	kworker/u4:12+events_unbound	21:32:38	0
2874023	99	72	62,4	cyclictest	3037669	-21	kworker/u4:0+events_unbound	00:00:00	0
2874024	99	68	52,11	cyclictest	0	-21	swapper/1	23:25:26	1
2874023	99	68	63,4	cyclictest	2875247	-21	kworker/u4:10+events_unbound	19:15:01	0
2874023	99	68	60,6	cyclictest	2875244	-21	kworker/u4:7+events_unbound	19:52:28	0
2874024	99	66	41,20	cyclictest	2945278	-21	ps	21:55:37	1
2874023	99	66	57,6	cyclictest	3037671	-21	kworker/u4:4+events_unbound	23:45:00	0
2874023	99	66	56,8	cyclictest	2904939	-21	diskmemload	00:20:21	0
2874024	99	65	28,12	cyclictest	2995582	-21	ssh	22:54:11	1
2874024	99	65	28,12	cyclictest	2995582	-21	ssh	22:54:10	1
2874024	99	63	23,14	cyclictest	3034625	-21	ssh	23:39:16	1
2874024	99	62	5,54	cyclictest	2984130	-21	ssh	22:40:27	1
2874024	99	62	51,6	cyclictest	0	-21	swapper/1	23:00:12	1
2874024	99	62	24,11	cyclictest	3016636	-21	ssh	23:18:05	1
2874024	99	62	22,16	cyclictest	3000187	-21	ssh	22:59:37	1
2874024	99	62	22,15	cyclictest	2941892	-21	ssh	21:51:33	1
2874024	99	62	22,11	cyclictest	2968312	-21	ssh	22:22:10	1
2874024	99	62	22,11	cyclictest	2968312	-21	ssh	22:22:09	1
2874024	99	62	21,16	cyclictest	3007135	-21	ssh	23:06:48	1
2874024	99	62	21,15	cyclictest	3085376	-21	ssh	00:38:47	1
2874024	99	62	21,14	cyclictest	2933939	-21	ssh	21:42:39	1
2874024	99	62	21,14	cyclictest	2933939	-21	ssh	21:42:39	1
2874023	99	62	54,5	cyclictest	2981087	-21	kworker/u4:12+events_unbound	22:40:04	0
2874024	99	61	49,9	cyclictest	2883019	-21	systemd	19:42:25	1
2874024	99	61	24,13	cyclictest	2963112	-21	ssh	22:15:49	1
2874024	99	61	23,12	cyclictest	2906820	-21	ssh	21:11:03	1
2874024	99	61	23,11	cyclictest	2923987	-21	ssh	21:30:41	1
2874024	99	61	22,14	cyclictest	3050194	-21	ssh	23:56:22	1
2874024	99	61	22,11	cyclictest	3054551	-21	ssh	00:01:22	1
2874024	99	61	21,15	cyclictest	2990076	-21	ssh	22:47:17	1
2874024	99	61	21,15	cyclictest	2978281	-21	ssh	22:34:14	1
2874024	99	61	21,14	cyclictest	2972318	-21	ssh	22:26:39	1
2874024	99	61	20,15	cyclictest	2931008	-21	ssh	21:40:00	1
2874023	99	61	54,5	cyclictest	2875247	-21	kworker/u4:10+events_unbound	20:55:00	0
2874024	99	60	26,9	cyclictest	3019955	-21	ssh	23:21:27	1
2874024	99	60	25,12	cyclictest	3058520	-21	ssh	00:07:30	1
2874024	99	60	25,11	cyclictest	3076894	-21	ssh	00:29:11	1
2874024	99	60	23,10	cyclictest	3012651	-21	ssh	23:13:42	1
2874024	99	60	22,14	cyclictest	3070772	-21	ssh	00:21:22	1
2874024	99	60	22,11	cyclictest	2951429	-21	ssh	22:02:57	1
2874024	99	60	21,14	cyclictest	3036858	-21	ssh	23:40:50	1
2874024	99	60	21,11	cyclictest	3063460	-21	ssh	00:13:28	1
2874024	99	60	20,14	cyclictest	3043674	-21	ssh	23:49:48	1
2874024	99	59	24,10	cyclictest	2918286	-21	ssh	21:25:05	1
2874024	99	59	23,12	cyclictest	2913732	-21	munin-run	21:20:00	1
2874024	99	59	21,10	cyclictest	3044652	-21	ssh	23:50:22	1
2874024	99	59	20,15	cyclictest	3030133	-21	ssh	23:34:00	1
2874024	99	59	20,13	cyclictest	3081242	-21	ssh	00:34:10	1
2874024	99	59	20,13	cyclictest	3066737	-21	ssh	00:16:45	1
2874024	99	59	19,15	cyclictest	2982852	-21	ssh	22:39:36	1
2874024	99	59	19,13	cyclictest	2917578	-21	ssh	21:24:13	1
2874023	99	59	37,18	cyclictest	2994776	-21	ssh	22:52:53	0
2874023	99	59	37,18	cyclictest	2994776	-21	ssh	22:52:53	0
2874023	99	58	41,13	cyclictest	3053044	-21	df_abs	00:00:18	0
2874023	99	58	25,25	cyclictest	256	50	irq/23-42890000.ethernet	19:30:12	0
2874024	99	57	39,14	cyclictest	2901175	-21	apt-get	20:55:11	1
2874023	99	57	50,5	cyclictest	2937626	-21	kworker/u4:6+events_unbound	22:02:45	0
2874024	99	56	21,10	cyclictest	2961199	-21	ssh	22:14:44	1
2874024	99	56	18,13	cyclictest	2938881	-21	ssh	21:48:39	1
2874023	99	56	48,6	cyclictest	2920609	-21	kworker/u4:7+events_unbound	21:40:02	0
2874023	99	56	48,6	cyclictest	2920609	-21	kworker/u4:7+events_unbound	21:40:01	0
2874023	99	56	48,6	cyclictest	15	1	ktimers/0	21:56:46	0
2874024	99	55	20,11	cyclictest	2877394	-21	ntpq	19:20:31	1
2874024	99	55	18,14	cyclictest	2956441	-21	ssh	22:09:04	1
2874023	99	55	48,5	cyclictest	2920612	-21	kworker/u4:11+events_unbound	21:36:41	0
2874023	99	55	45,5	cyclictest	2979140	-21	aten_r7power_cu	22:35:16	0
2874023	99	55	41,8	cyclictest	0	-21	swapper/0	23:30:36	0
2874023	99	55	19,25	cyclictest	256	50	irq/23-42890000.ethernet	21:05:05	0
2874024	99	54	39,9	cyclictest	2880651	-21	apt-get	19:35:11	1
2874024	99	54	37,13	cyclictest	2876026	-21	ntpq	19:15:26	1
2874023	99	54	47,5	cyclictest	3080020	-21	kworker/u4:14+events_unbound	00:38:06	0
2874023	99	54	46,6	cyclictest	3077765	-21	aten2__	00:30:16	0
2874023	99	54	45,5	cyclictest	3074380	-21	sendmail_mailqu	00:25:42	0
2874023	99	54	30,19	cyclictest	0	-21	swapper/0	19:45:39	0
2874024	99	53	34,15	cyclictest	2890149	-21	ntpq	20:10:25	1
2874024	99	53	18,14	cyclictest	2892817	-21	ld	20:20:32	1
2874024	99	53	16,14	cyclictest	2900534	-21	ntpq	20:50:36	1
2874023	99	53	46,5	cyclictest	2886494	-21	sendmail_mailqu	19:55:35	0
2874023	99	53	44,6	cyclictest	2967880	-21	kworker/u4:7+events_unbound	22:29:59	0
2874023	99	53	4,36	cyclictest	3003085	-21	ssh	23:02:16	0
2874024	99	52	37,10	cyclictest	2898012	-21	ps	20:40:34	1
2874023	99	52	43,7	cyclictest	2898351	-21	systemd	20:42:32	0
2874023	99	52	41,7	cyclictest	53	-21	kswapd0	00:10:00	0
2874024	99	51	37,12	cyclictest	2886366	-21	ntpq	19:55:28	1
2874024	99	51	18,6	cyclictest	2891443	-21	ntpq	20:15:26	1
2874023	99	51	42,6	cyclictest	3006878	-21	kworker/u4:12+events_unbound	23:35:22	0
2874024	99	50	36,9	cyclictest	2874828	-21	ntpq	19:10:33	1
2874024	99	50	18,8	cyclictest	2883217	-21	apt-get	19:45:14	1
2874023	99	50	44,5	cyclictest	2959630	-21	kworker/u4:2+events_unbound	22:24:42	0
2874023	99	50	44,5	cyclictest	2959630	-21	kworker/u4:2+events_unbound	22:24:41	0
2874023	99	50	43,5	cyclictest	2914122	-21	aten_r7power_cu	21:20:15	0
2874023	99	50	43,5	cyclictest	2875243	-21	kworker/u4:1+events_unbound	19:22:24	0
2874023	99	50	42,6	cyclictest	2888126	-21	kworker/u4:18+events_unbound	20:57:33	0
2874023	99	50	15,28	cyclictest	0	-21	swapper/0	21:10:30	0
2874024	99	49	42,5	cyclictest	2887277	-21	diskstats	20:00:17	1
2874024	99	49	17,9	cyclictest	2895985	-21	apt-get	20:35:13	1
2874024	99	49	17,9	cyclictest	2895985	-21	apt-get	20:35:13	1
2874023	99	49	42,5	cyclictest	2985523	-21	kworker/u4:10+events_unbound	22:55:02	0
2874023	99	49	41,5	cyclictest	3040015	-21	/usr/sbin/munin	23:45:17	0
2874023	99	49	3,38	cyclictest	2988648	-21	ssh	22:45:39	0
2874024	99	48	19,8	cyclictest	2878571	-21	ntpq	19:25:24	1
2874024	99	48	17,9	cyclictest	2874002	-21	munin-run	19:10:01	1
2874024	99	47	34,10	cyclictest	2888954	-21	ntpq	20:05:29	1
2874024	99	47	33,11	cyclictest	2899145	-21	ntpq	20:45:27	1
2874023	99	47	40,5	cyclictest	2974992	-21	df_abs	22:30:17	0
2874023	99	47	40,5	cyclictest	0	-21	swapper/0	21:45:46	0
2874023	99	47	33,8	cyclictest	2883038	-21	modprobe	19:45:00	0
2874024	99	46	31,12	cyclictest	2903069	-21	ntpq	21:00:30	1
2874023	99	46	39,5	cyclictest	2894510	-21	kworker/u4:3+events_unbound	20:37:33	0
2874023	99	46	39,5	cyclictest	2894510	-21	kworker/u4:3+events_unbound	20:37:32	0
2874024	99	45	38,5	cyclictest	2885594	-21	munin-run	19:55:01	1
2874024	99	45	37,6	cyclictest	2894574	-21	grep	20:30:01	1
2874024	99	45	31,10	cyclictest	2879926	-21	ntpq	19:30:29	1
2874023	99	45	38,5	cyclictest	3065504	-21	ntpq	00:15:30	0
2874023	99	45	38,5	cyclictest	2875247	-21	kworker/u4:10+events_unbound	20:47:35	0
2874023	99	45	36,7	cyclictest	2918732	-21	fschecks_count	21:25:19	0
2874023	99	45	35,7	cyclictest	2881083	-21	gltestperf	19:35:18	0
2874024	99	44	28,13	cyclictest	2895353	-21	ntpq	20:30:33	1
2874023	99	44	37,5	cyclictest	2889887	-21	fschecks_time	20:10:18	0
2874023	99	43	36,5	cyclictest	2853689	-21	kworker/u4:6+events_unbound	20:07:31	0
2874023	99	43	33,6	cyclictest	2878140	-21	aten_r7power_vo	19:25:16	0
2874023	99	42	35,5	cyclictest	2894514	-21	kworker/u4:14+events_unbound	20:27:31	0
2874023	99	42	34,6	cyclictest	2892366	-21	df_abs	20:20:16	0
2874023	99	41	33,6	cyclictest	2894980	-21	fschecks_count	20:30:21	0
2874023	99	37	27,6	cyclictest	0	-21	swapper/0	20:15:36	0
2874023	99	35	2,12	cyclictest	2874034	-21	wc	19:10:00	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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