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 Sun Dec 21, 2025 00:44:11)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3042197	99	103	94,6	cyclictest	3186409	-21	kworker/u4:2+events_unbound	23:33:42	1
3042197	99	93	84,6	cyclictest	3039699	-21	kworker/u4:5+events_unbound	19:30:01	1
3042197	99	86	70,6	cyclictest	3190515	-21	kworker/u4:1+events_unbound	23:43:43	1
3042197	99	85	69,7	cyclictest	3066527	-21	kworker/u4:5+events_unbound	20:58:03	1
3042197	99	83	74,6	cyclictest	3194628	-21	kworker/u4:4+events_unbound	00:33:54	1
3042196	99	81	74,5	cyclictest	3066525	-21	kworker/u4:3+events_unbound	21:08:07	0
3042197	99	80	73,5	cyclictest	3066525	-21	kworker/u4:3+events_unbound	20:45:01	1
3042197	99	80	73,5	cyclictest	3026058	-21	kworker/u4:8+events_unbound	19:45:01	1
3042196	99	80	73,5	cyclictest	3066524	-21	kworker/u4:1+events_unbound	21:00:02	0
3042196	99	80	73,5	cyclictest	3051113	-21	kworker/u4:10+events_unbound	19:47:43	0
3042196	99	75	66,6	cyclictest	3153932	-21	kworker/u4:1+events_unbound	22:58:34	0
3042196	99	74	52,18	cyclictest	3085732	-21	apt-get	21:25:10	0
3042196	99	73	63,8	cyclictest	3092093	-21	kworker/u4:12+events_unbound	21:53:17	0
3042197	99	71	63,6	cyclictest	3124755	-21	kworker/u4:6+events_unbound	22:35:16	1
3042197	99	70	63,5	cyclictest	3121188	-21	kworker/u4:4+events_unbound	22:10:14	1
3042197	99	70	51,5	cyclictest	2658558	-21	kworker/u4:14+events_unbound	20:25:00	1
3042196	99	70	62,6	cyclictest	3158022	-21	kworker/u4:0+events_unbound	22:53:34	0
3042197	99	69	61,6	cyclictest	3120616	-21	kworker/u4:2+events_unbound	22:08:23	1
3042197	99	67	59,5	cyclictest	3166384	-21	kworker/u4:6+events_unbound	23:13:37	1
3042196	99	67	60,5	cyclictest	3042137	-21	kworker/u4:7+events_unbound	20:20:02	0
3042196	99	66	59,5	cyclictest	3071723	-21	kworker/u4:17+events_unbound	21:15:02	0
3042197	99	65	57,6	cyclictest	3047275	-21	kworker/u4:15+events_unbound	19:50:00	1
3042197	99	65	57,6	cyclictest	3043425	-21	kworker/u4:9+events_unbound	19:22:38	1
3042197	99	65	56,7	cyclictest	53	-21	kswapd0	23:20:00	1
3042197	99	65	55,8	cyclictest	53	-21	kswapd0	23:10:01	1
3042197	99	65	55,8	cyclictest	53	-21	kswapd0	23:10:00	1
3042196	99	65	59,5	cyclictest	3038488	-21	kworker/u4:0+events_unbound	20:17:01	0
3042196	99	64	41,17	cyclictest	53	-21	kswapd0	22:40:12	0
3042196	99	64	29,22	cyclictest	3151698	-21	ssh	22:45:09	0
3042196	99	62	7,45	cyclictest	3242476	-21	rm	00:35:28	0
3042197	99	61	54,5	cyclictest	2658558	-21	kworker/u4:14+events_unbound	19:15:01	1
3042196	99	61	54,5	cyclictest	3038488	-21	kworker/u4:0+events_unbound	19:15:04	0
3042196	99	61	53,5	cyclictest	0	-21	swapper/0	00:33:14	0
3042196	99	60	49,6	cyclictest	0	-21	swapper/0	22:25:29	0
3042197	99	59	52,5	cyclictest	3194628	-21	kworker/u4:4+events_unbound	00:18:50	1
3042197	99	59	50,6	cyclictest	3182285	-21	kworker/u4:7+events_unbound	23:25:14	1
3042197	99	59	50,6	cyclictest	3084210	-21	kworker/u4:5+events_unbound	22:18:25	1
3042196	99	59	52,5	cyclictest	3165799	-21	kworker/u4:5+events_unbound	23:20:19	0
3042197	99	58	50,5	cyclictest	2658558	-21	kworker/u4:14+events_unbound	20:12:51	1
3042197	99	58	48,8	cyclictest	315	-21	systemd-journal	22:53:32	1
3042196	99	57	51,5	cyclictest	3049816	-21	kworker/u4:6+events_unbound	19:50:03	0
3042196	99	57	2,42	cyclictest	3230064	-21	ntpq	00:20:30	0
3042196	99	57	23,21	cyclictest	14	-21	ksoftirqd/0	20:50:01	0
3042196	99	57	21,29	cyclictest	256	50	irq/23-42890000.ethernet	21:40:09	0
3042197	99	56	49,5	cyclictest	3202321	-21	kworker/u4:10+events_unbound	23:58:46	1
3042197	99	56	48,6	cyclictest	3202321	-21	kworker/u4:10+events_unbound	23:48:47	1
3042197	99	55	48,5	cyclictest	3069070	-21	kworker/u4:12+events_unbound	21:00:17	1
3042197	99	55	47,6	cyclictest	3239982	-21	kworker/u4:5+events_unbound	00:38:55	1
3042196	99	55	50,3	cyclictest	256	50	irq/23-42890000.ethernet	22:15:12	0
3042196	99	55	40,12	cyclictest	3120204	-21	uptime	22:05:44	0
3042197	99	54	45,6	cyclictest	3066528	-21	kworker/u4:7-rpciod	21:15:47	1
3042196	99	54	47,5	cyclictest	3194629	-21	kworker/u4:6+events_unbound	00:10:01	0
3042196	99	53	46,5	cyclictest	3039698	-21	kworker/u4:4+events_unbound	19:36:44	0
3042196	99	53	4,21	cyclictest	3234313	-21	ssh	00:25:36	0
3042196	99	53	30,20	cyclictest	0	-21	swapper/0	00:20:01	0
3042196	99	52	39,7	cyclictest	3043455	-21	modprobe	19:15:01	0
3042196	99	52	2,39	cyclictest	3213457	-21	ntpq	00:00:28	0
3042197	99	51	44,5	cyclictest	3084208	-21	kworker/u4:1+events_unbound	21:56:59	1
3042197	99	51	44,5	cyclictest	3042135	-21	kworker/u4:2+events_unbound	20:00:01	1
3042197	99	51	43,6	cyclictest	3088458	-21	kworker/u4:11+events_unbound	21:40:03	1
3042197	99	51	43,6	cyclictest	3038488	-21	kworker/u4:0+events_unbound	20:07:49	1
3042197	99	51	42,7	cyclictest	3096306	-21	kworker/u4:14+events_unbound	22:03:20	1
3042196	99	51	43,5	cyclictest	3192989	-21	/usr/sbin/munin	23:35:25	0
3042196	99	51	31,14	cyclictest	15	1	ktimers/0	21:20:27	0
3042196	99	51	15,7	cyclictest	0	-21	swapper/0	21:15:48	0
3042197	99	50	42,5	cyclictest	3160724	-21	/usr/sbin/munin	22:55:38	1
3042196	99	50	43,5	cyclictest	3047276	-21	kworker/u4:16+events_unbound	20:43:02	0
3042196	99	50	42,6	cyclictest	397	-21	systemd-logind	22:22:43	0
3042196	99	50	40,7	cyclictest	3110701	-21	/usr/sbin/munin	21:55:11	0
3042197	99	49	42,5	cyclictest	3073429	-21	aten_r7power_po	21:10:14	1
3042197	99	49	42,5	cyclictest	3060037	-21	unixbench_multi	20:15:41	1
3042197	99	49	38,8	cyclictest	0	-21	swapper/1	21:45:29	1
3042196	99	49	42,5	cyclictest	3123406	-21	gltestperf	22:10:22	0
3042196	99	49	41,6	cyclictest	3045902	-21	unixbench_multi	19:20:37	0
3042196	99	49	38,7	cyclictest	0	-21	swapper/0	22:00:27	0
3042196	99	49	37,8	cyclictest	0	-21	swapper/0	21:30:14	0
3042196	99	49	31,15	cyclictest	0	-21	swapper/0	23:10:36	0
3042196	99	49	27,19	cyclictest	3055498	-21	fschecks_count	20:00:21	0
3042196	99	49	14,18	cyclictest	0	-21	swapper/0	23:45:45	0
3042197	99	48	41,5	cyclictest	3237455	-21	latency_hist	00:30:01	1
3042197	99	48	34,10	cyclictest	37	-21	kcompactd0	00:08:22	1
3042196	99	48	39,6	cyclictest	3204530	-21	acpi	23:50:09	0
3042197	99	47	40,5	cyclictest	3205473	-21	proc_pri	23:50:36	1
3042197	99	47	40,5	cyclictest	3052956	-21	fschecks_count	19:50:20	1
3042197	99	47	40,5	cyclictest	3048213	-21	sendmail_mailqu	19:30:37	1
3042197	99	47	39,6	cyclictest	3212910	-21	aten_r7power_po	00:00:17	1
3042196	99	47	6,38	cyclictest	3197315	-21	ssh	23:40:36	0
3042196	99	47	40,5	cyclictest	3184618	-21	fschecks_count	23:25:21	0
3042196	99	47	38,6	cyclictest	3208740	-21	aten_r7power_cu	23:55:16	0
3042196	99	47	35,8	cyclictest	3221004	-21	apt-get	00:10:13	0
3042196	99	47	25,19	cyclictest	0	-21	swapper/0	22:30:12	0
3042197	99	46	39,5	cyclictest	3107911	-21	unixbench_multi	21:50:43	1
3042197	99	46	38,6	cyclictest	3139741	-21	fschecks_time	22:30:21	1
3042197	99	46	35,7	cyclictest	0	-21	swapper/1	21:40:33	1
3042197	99	46	11,19	cyclictest	3131897	-21	ssh	22:20:27	1
3042196	99	46	39,5	cyclictest	3051222	-21	sed	19:45:00	0
3042196	99	46	39,5	cyclictest	2658558	-21	kworker/u4:14+events_unbound	20:26:04	0
3042196	99	46	38,6	cyclictest	3103014	-21	gltestperf	21:45:22	0
3042196	99	46	37,6	cyclictest	3178150	-21	kworker/u4:9+rpciod	23:17:29	0
3042196	99	46	34,7	cyclictest	0	-21	swapper/0	23:30:34	0
3042197	99	45	39,4	cyclictest	3147606	-21	find	22:40:14	1
3042197	99	45	38,5	cyclictest	3049861	-21	sendmail	19:40:00	1
3042197	99	45	35,7	cyclictest	3038488	-21	kworker/u4:0+events_unbound	19:15:14	1
3042197	99	45	10,20	cyclictest	3180313	-21	ssh	23:20:17	1
3042196	99	45	30,12	cyclictest	0	-21	swapper/0	23:05:01	0
3042196	99	45	30,12	cyclictest	0	-21	swapper/0	23:05:00	0
3042197	99	44	35,5	cyclictest	0	-21	swapper/1	22:45:38	1
3042197	99	44	34,8	cyclictest	3082654	-21	ld	21:20:32	1
3042197	99	44	29,12	cyclictest	0	-21	swapper/1	00:10:27	1
3042196	99	44	37,5	cyclictest	3064935	-21	cat	20:35:38	0
3042196	99	44	14,5	cyclictest	15	1	ktimers/0	23:05:30	0
3042196	99	44	14,5	cyclictest	15	1	ktimers/0	23:05:30	0
3042197	99	43	37,4	cyclictest	3090822	-21	netstat	21:30:25	1
3042197	99	43	33,7	cyclictest	0	-21	swapper/1	23:00:39	1
3042197	99	43	33,7	cyclictest	0	-21	swapper/1	23:00:39	1
3042197	99	43	32,8	cyclictest	3229402	-21	grep	00:20:16	1
3042196	99	43	35,6	cyclictest	3053995	-21	aten_r7power_cu	19:55:17	0
3042196	99	43	29,8	cyclictest	0	-21	swapper/0	22:36:26	0
3042197	99	42	33,7	cyclictest	3190515	-21	kworker/u4:1-rpciod	23:35:41	1
3042196	99	42	35,5	cyclictest	3057632	-21	latency_hist	20:10:01	0
3042197	99	41	33,6	cyclictest	3135668	-21	fschecks_count	22:25:21	1
3042197	99	41	32,7	cyclictest	3063886	-21	unixbench_multi	20:30:39	1
3042197	99	41	32,7	cyclictest	3063886	-21	unixbench_multi	20:30:38	1
3042197	99	41	31,7	cyclictest	0	-21	swapper/1	21:25:32	1
3042196	99	41	34,5	cyclictest	3063997	-21	munin-plugin-st	20:35:01	0
3042196	99	41	34,5	cyclictest	3063997	-21	munin-plugin-st	20:35:00	0
3042196	99	41	33,6	cyclictest	3098942	-21	/usr/sbin/munin	21:40:25	0
3042196	99	41	33,6	cyclictest	3046227	-21	aten2__	19:25:18	0
3042196	99	41	33,5	cyclictest	3069070	-21	kworker/u4:12-xprtiod	20:55:41	0
3042196	99	41	32,7	cyclictest	3047605	-21	aten_r7power_vo	19:30:18	0
3042196	99	41	32,6	cyclictest	0	-21	swapper/0	20:55:00	0
3042197	99	40	31,6	cyclictest	3056037	-21	switchtime	20:00:48	1
3042197	99	40	31,6	cyclictest	3051113	-21	kworker/u4:10+events_unbound	20:37:59	1
3042196	99	40	31,7	cyclictest	3058173	-21	gltestperf	20:10:23	0
3042197	99	39	32,5	cyclictest	3068737	-21	sendmail_mailqu	20:50:36	1
3042197	99	39	28,7	cyclictest	0	-21	swapper/1	20:45:28	1
3042197	99	37	29,6	cyclictest	3072117	-21	df_abs	21:05:16	1
3042197	99	37	29,6	cyclictest	3038491	-21	kworker/u4:3+events_unbound	19:10:01	1
3042197	99	36	26,7	cyclictest	0	-21	swapper/1	20:25:26	1
3042196	99	36	5,24	cyclictest	3042194	-21	awk	19:09:59	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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