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 Jun 16, 2026 00:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3006329	99	105	90,5	cyclictest	3005055	-21	kworker/u4:4+events_unbound	20:02:14	1
3006329	99	103	90,6	cyclictest	3007555	-21	kworker/u4:12+events_unbound	19:32:11	1
3006329	99	97	90,5	cyclictest	3012756	-21	kworker/u4:5+events_unbound	20:22:15	1
3006329	99	94	89,4	cyclictest	3005053	-21	kworker/u4:0+events_unbound	19:47:12	1
3006329	99	94	89,4	cyclictest	3005053	-21	kworker/u4:0+events_unbound	19:47:12	1
3006329	99	92	85,5	cyclictest	3028093	-21	kworker/u4:7+events_unbound	20:37:17	1
3006329	99	91	84,5	cyclictest	3011485	-21	kworker/u4:1+events_unbound	19:42:12	1
3006329	99	89	82,5	cyclictest	3026818	-21	kworker/u4:8+events_unbound	20:32:17	1
3006329	99	89	82,5	cyclictest	3026818	-21	kworker/u4:8+events_unbound	20:32:17	1
3006329	99	88	74,6	cyclictest	3110837	-21	kworker/u4:7+events_unbound	22:37:37	1
3006329	99	84	77,5	cyclictest	3005053	-21	kworker/u4:0+events_unbound	19:12:10	1
3006329	99	83	77,4	cyclictest	3017862	-21	kworker/u4:15+events_unbound	21:07:21	1
3006329	99	77	70,5	cyclictest	3028090	-21	kworker/u4:0+events_unbound	21:02:19	1
3006329	99	75	68,5	cyclictest	3003820	-21	kworker/u4:7+events_unbound	19:25:03	1
3006329	99	74	66,6	cyclictest	2949381	-21	kworker/u4:10+events_unbound	19:17:00	1
3006328	99	68	57,8	cyclictest	53	-21	kswapd0	23:55:01	0
3006329	99	67	57,8	cyclictest	3017850	-21	systemd	19:52:14	1
3006328	99	67	56,8	cyclictest	53	-21	kswapd0	00:10:01	0
3006329	99	66	58,6	cyclictest	3172407	-21	kworker/u4:15+events_unbound	23:50:00	1
3006329	99	65	58,5	cyclictest	3017862	-21	kworker/u4:15+events_unbound	19:55:02	1
3006328	99	63	51,8	cyclictest	53	-21	kswapd0	22:15:12	0
3006329	99	62	49,10	cyclictest	0	-21	swapper/1	23:28:19	1
3006329	99	62	43,8	cyclictest	3190353	-21	kworker/u4:7+events_unbound	00:27:59	1
3006328	99	61	45,12	cyclictest	0	-21	swapper/0	23:20:31	0
3006329	99	60	53,5	cyclictest	3020428	-21	kworker/u4:17+events_unbound	20:05:45	1
3006328	99	60	51,6	cyclictest	3070957	-21	kworker/u4:1+events_unbound	22:02:29	0
3006328	99	60	15,27	cyclictest	3028117	-21	modprobe	20:35:00	0
3006328	99	60	15,27	cyclictest	3028117	-21	modprobe	20:35:00	0
3006329	99	59	49,7	cyclictest	53	-21	kswapd0	00:20:00	1
3006328	99	59	35,7	cyclictest	3014566	-21	fschecks_time	19:40:17	0
3006328	99	59	15,17	cyclictest	3101821	-21	kworker/u4:5-xprtiod	22:30:28	0
3006329	99	58	45,10	cyclictest	0	-21	swapper/1	21:10:12	1
3006329	99	58	43,6	cyclictest	3167926	-21	kworker/u4:11+events_unbound	23:36:59	1
3006328	99	58	48,7	cyclictest	0	-21	swapper/0	20:05:38	0
3006328	99	58	37,16	cyclictest	3131031	-21	ssh	22:55:20	0
3006328	99	58	18,14	cyclictest	3202022	-21	ntpq	00:15:32	0
3006328	99	58	16,15	cyclictest	3214318	-21	ssh	00:30:04	0
3006328	99	58	14,25	cyclictest	3170894	-21	grep	23:40:19	0
3006328	99	58	12,9	cyclictest	3210587	-21	irqstats	00:25:20	0
3006329	99	57	51,4	cyclictest	3048410	-21	kworker/u4:7+events_unbound	21:30:00	1
3006329	99	57	49,6	cyclictest	3139984	-21	gltestperf	23:05:23	1
3006329	99	57	47,6	cyclictest	0	-21	swapper/1	22:12:46	1
3006328	99	57	20,12	cyclictest	3127020	-21	ld	22:50:30	0
3006328	99	57	20,12	cyclictest	3127020	-21	ld	22:50:30	0
3006328	99	56	8,22	cyclictest	3087105	-21	ntpq	22:05:30	0
3006328	99	56	35,15	cyclictest	3122574	-21	ssh	22:45:30	0
3006328	99	56	17,14	cyclictest	3116032	-21	ssh	22:38:26	0
3006328	99	56	15,15	cyclictest	3107589	-21	ssh	22:29:04	0
3006328	99	56	11,22	cyclictest	0	-21	swapper/0	22:10:33	0
3006329	99	55	49,4	cyclictest	3216534	-21	kworker/u4:11+events_unbound	00:35:04	1
3006329	99	55	49,4	cyclictest	3044514	-21	kworker/u4:3+events_unbound	21:23:45	1
3006329	99	55	48,5	cyclictest	3029365	-21	kworker/u4:9+events_unbound	20:45:02	1
3006329	99	55	42,6	cyclictest	3097300	-21	kworker/u4:0+events_unbound	22:19:45	1
3006328	99	55	44,8	cyclictest	3167176	-21	wc	23:35:39	0
3006328	99	55	44,8	cyclictest	3003819	-21	kworker/u4:6+events_unbound	19:40:02	0
3006328	99	55	37,12	cyclictest	3121489	-21	modprobe	22:45:00	0
3006328	99	55	24,13	cyclictest	0	-21	swapper/0	21:05:36	0
3006328	99	55	21,8	cyclictest	3015513	-21	apt-get	19:45:12	0
3006328	99	55	21,8	cyclictest	3015513	-21	apt-get	19:45:11	0
3006328	99	55	17,11	cyclictest	3047961	-21	ssh	21:20:59	0
3006328	99	55	12,18	cyclictest	3140847	-21	users	23:05:44	0
3006329	99	54	47,5	cyclictest	3128192	-21	kworker/u4:10+events_unbound	22:52:00	1
3006329	99	54	47,5	cyclictest	3128192	-21	kworker/u4:10+events_unbound	22:52:00	1
3006328	99	54	17,14	cyclictest	3031391	-21	ntpq	20:45:23	0
3006328	99	54	17,11	cyclictest	3035239	-21	ntpq	21:00:23	0
3006328	99	54	16,15	cyclictest	3190293	-21	ssh	00:02:07	0
3006328	99	54	16,15	cyclictest	3070547	-21	ssh	21:46:39	0
3006328	99	54	16,14	cyclictest	3043520	-21	ssh	21:16:07	0
3006328	99	54	16,11	cyclictest	3147506	-21	ssh	23:14:15	0
3006328	99	54	14,15	cyclictest	3164927	-21	ssh	23:33:49	0
3006328	99	54	14,15	cyclictest	3080173	-21	ssh	21:57:51	0
3006328	99	54	12,22	cyclictest	3100881	-21	sed	22:20:40	0
3006328	99	54	12,20	cyclictest	3023632	-21	irqstats	20:15:22	0
3006329	99	53	46,5	cyclictest	3132659	-21	kworker/u4:17+events_unbound	22:56:45	1
3006329	99	53	45,5	cyclictest	0	-21	swapper/1	21:30:13	1
3006329	99	53	42,4	cyclictest	3101820	-21	kworker/u4:3+events_unbound	22:26:01	1
3006328	99	53	8,23	cyclictest	3151136	-21	rm	23:18:00	0
3006328	99	53	5,24	cyclictest	0	-21	swapper/0	00:10:39	0
3006328	99	53	44,6	cyclictest	3007215	-21	sendmail_mailqu	19:10:35	0
3006328	99	53	34,15	cyclictest	3157164	-21	apt-get	23:25:12	0
3006328	99	53	27,9	cyclictest	3135854	-21	ntpq	23:00:32	0
3006328	99	53	13,18	cyclictest	3184780	-21	timerwakeupswit	23:55:38	0
3006328	99	53	12,16	cyclictest	3208778	-21	ssh	00:23:29	0
3006328	99	53	11,21	cyclictest	3037405	-21	aten2__	21:10:15	0
3006329	99	52	45,5	cyclictest	3214734	-21	fschecks_count	00:30:18	1
3006329	99	52	45,5	cyclictest	3110838	-21	kworker/u4:10+events_unbound	22:33:59	1
3006328	99	52	34,13	cyclictest	3011677	-21	apt-get	19:30:10	0
3006328	99	52	24,11	cyclictest	3050854	-21	apt-get	21:25:15	0
3006328	99	52	20,9	cyclictest	0	-21	swapper/0	20:20:15	0
3006328	99	52	16,10	cyclictest	3221584	-21	ssh	00:37:55	0
3006328	99	52	15,14	cyclictest	3074941	-21	ssh	21:51:39	0
3006328	99	52	15,10	cyclictest	3067905	-21	ssh	21:44:26	0
3006328	99	52	13,15	cyclictest	3022549	-21	ntpq	20:10:37	0
3006328	99	52	12,21	cyclictest	3017137	-21	grep	19:50:19	0
3006329	99	51	45,4	cyclictest	3031922	-21	kworker/u4:12+events_unbound	20:55:03	1
3006329	99	51	43,5	cyclictest	3024148	-21	unixbench_multi	20:15:38	1
3006329	99	51	42,7	cyclictest	3150634	-21	kworker/u4:2+events_unbound	23:22:45	1
3006329	99	51	38,5	cyclictest	3017862	-21	kworker/u4:15+events_unbound	20:51:01	1
3006328	99	51	9,20	cyclictest	0	-21	swapper/0	21:35:26	0
3006328	99	51	14,14	cyclictest	3026350	-21	ntpq	20:25:29	0
3006328	99	51	13,14	cyclictest	3018693	-21	ntp_states	19:55:32	0
3006328	99	51	12,16	cyclictest	3175352	-21	irqstats	23:45:24	0
3006329	99	50	44,4	cyclictest	3194835	-21	kworker/u4:0+events_unbound	00:13:58	1
3006329	99	50	44,4	cyclictest	3146139	-21	kworker/u4:9+events_unbound	23:17:02	1
3006329	99	50	43,5	cyclictest	3029364	-21	kworker/u4:4+events_unbound	21:16:00	1
3006329	99	50	42,5	cyclictest	3193194	-21	/usr/sbin/munin	00:05:29	1
3006328	99	50	32,11	cyclictest	3008941	-21	modprobe	19:20:00	0
3006328	99	50	31,15	cyclictest	3055954	-21	ntpq	21:30:25	0
3006329	99	49	42,5	cyclictest	3183970	-21	basename	23:55:19	1
3006329	99	49	39,7	cyclictest	3119864	-21	kworker/u4:14+rpciod	23:00:24	1
3006328	99	49	25,15	cyclictest	3029584	-21	apt-get	20:40:11	0
3006328	99	49	13,10	cyclictest	3028948	-21	ntpq	20:35:36	0
3006328	99	49	11,14	cyclictest	3010631	-21	diskstats	19:25:18	0
3006328	99	49	11,13	cyclictest	3009824	-21	awk	19:20:36	0
3006328	99	49	10,15	cyclictest	3033905	-21	memory	20:55:21	0
3006329	99	48	42,4	cyclictest	3176859	-21	kworker/u4:8+events_unbound	23:50:03	1
3006329	99	48	42,4	cyclictest	3063868	-21	kworker/u4:2+events_unbound	21:45:00	1
3006329	99	48	41,5	cyclictest	3115330	-21	kworker/u4:2+events_unbound	22:43:59	1
3006329	99	48	39,6	cyclictest	3161706	-21	aten_r7power_en	23:30:18	1
3006328	99	48	15,10	cyclictest	3019896	-21	ntpq	20:00:24	0
3006329	99	47	40,5	cyclictest	3122830	-21	mailstats	22:45:38	1
3006329	99	47	40,5	cyclictest	3086079	-21	latency_hist	22:05:01	1
3006329	99	47	35,5	cyclictest	3007554	-21	kworker/u4:11+events_unbound	19:23:45	1
3006328	99	47	32,11	cyclictest	3032707	-21	ntpq	20:50:25	0
3006329	99	46	40,4	cyclictest	3192239	-21	latency_hist	00:05:01	1
3006329	99	46	40,4	cyclictest	3101820	-21	kworker/u4:3+events_unbound	22:23:45	1
3006329	99	46	39,5	cyclictest	3077954	-21	sed	21:55:24	1
3006329	99	46	39,5	cyclictest	3017860	-21	kworker/u4:8+events_unbound	20:11:05	1
3006329	99	46	38,6	cyclictest	0	-21	swapper/1	23:10:14	1
3006329	99	45	38,5	cyclictest	3026819	-21	kworker/u4:10+events_unbound	20:28:02	1
3006329	99	45	35,7	cyclictest	3059822	-21	aten_r7power_cu	21:35:17	1
3006329	99	45	34,9	cyclictest	3068833	-21	df_abs	21:45:18	1
3006329	99	44	38,5	cyclictest	3003820	-21	kworker/u4:7+events_unbound	19:37:01	1
3006329	99	44	36,5	cyclictest	3084469	-21	kworker/u4:0-xprtiod	22:05:27	1
3006329	99	44	36,5	cyclictest	0	-21	swapper/1	00:20:10	1
3006329	99	43	21,18	cyclictest	27	1	ktimers/1	21:50:30	1
3006329	99	42	21,8	cyclictest	17	1	rcu_preempt	23:42:09	1
3006329	99	41	32,6	cyclictest	0	-21	swapper/1	20:45:00	1
3006328	99	37	27,6	cyclictest	3006324	-21	cyclictest	19:10:01	0
3006329	99	34	5,15	cyclictest	27	1	ktimers/1	19:10:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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