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 Tue Nov 25, 2025 12:44:07)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2967385	99	153	135,6	cyclictest	2977654	-21	kworker/u4:4+events_unbound	08:10:37	1
2967385	99	137	128,7	cyclictest	2967310	-21	kworker/u4:1+events_unbound	07:10:26	1
2967384	99	130	121,7	cyclictest	3016759	-21	kworker/u4:4+events_unbound	09:40:51	0
2967385	99	128	121,5	cyclictest	2986772	-21	kworker/u4:17+events_unbound	08:25:40	1
2967385	99	126	116,8	cyclictest	3054435	-21	kworker/u4:4+events_unbound	10:35:19	1
2967385	99	122	114,6	cyclictest	3116535	-21	kworker/u4:4+events_unbound	12:06:16	1
2967385	99	122	114,6	cyclictest	2993220	-21	kworker/u4:8+events_unbound	09:20:00	1
2967384	99	122	117,3	cyclictest	2968617	-21	kworker/u4:16+events_unbound	07:15:26	0
2967384	99	122	114,6	cyclictest	2986772	-21	kworker/u4:17+events_unbound	09:15:47	0
2967385	99	121	101,7	cyclictest	2989343	-21	kworker/u4:0+events_unbound	09:20:49	1
2967385	99	120	100,8	cyclictest	3047151	-21	kworker/u4:2+events_unbound	10:30:17	1
2967384	99	118	110,6	cyclictest	3113408	-21	kworker/u4:1+events_unbound	12:10:43	0
2967384	99	115	97,6	cyclictest	3109829	-21	kworker/u4:13+events_unbound	11:56:12	0
2967384	99	112	104,5	cyclictest	3019947	-21	kworker/u4:5+events_unbound	09:45:05	0
2967384	99	110	88,8	cyclictest	3054439	-21	kworker/u4:10+events_unbound	10:40:20	0
2967384	99	110	102,6	cyclictest	3006454	-21	kworker/u4:14+events_unbound	09:30:49	0
2967385	99	109	100,6	cyclictest	3124201	-21	kworker/u4:0+events_unbound	12:15:44	1
2967385	99	105	97,6	cyclictest	2994501	-21	kworker/u4:9+events_unbound	09:10:46	1
2967384	99	105	96,6	cyclictest	3128092	-21	kworker/u4:2+events_unbound	12:25:47	0
2967384	99	104	97,5	cyclictest	2993218	-21	kworker/u4:1+events_unbound	09:05:45	0
2967384	99	104	96,6	cyclictest	3036863	-21	kworker/u4:2+events_unbound	10:10:55	0
2967385	99	102	95,5	cyclictest	3092152	-21	kworker/u4:6+events_unbound	11:31:08	1
2967384	99	101	96,3	cyclictest	3068452	-21	kworker/u4:3+events_unbound	11:06:03	0
2967384	99	101	91,7	cyclictest	3061476	-21	kworker/u4:1+events_unbound	10:51:01	0
2967385	99	100	93,5	cyclictest	2986772	-21	kworker/u4:17+events_unbound	10:15:56	1
2967384	99	100	79,10	cyclictest	3088679	-21	kworker/u4:5+events_unbound	11:40:37	0
2967385	99	99	92,5	cyclictest	3039819	-21	kworker/u4:6+events_unbound	10:25:56	1
2967385	99	98	91,5	cyclictest	3075146	-21	kworker/u4:4+events_unbound	11:26:08	1
2967385	99	98	90,6	cyclictest	3128094	-21	kworker/u4:5+events_unbound	12:30:47	1
2967385	99	98	90,6	cyclictest	3109826	-21	kworker/u4:9+events_unbound	12:11:19	1
2967384	99	97	83,6	cyclictest	2977653	-21	kworker/u4:1+events_unbound	07:59:45	0
2967384	99	96	89,5	cyclictest	3061478	-21	kworker/u4:6+events_unbound	11:00:23	0
2967384	99	96	89,5	cyclictest	2975063	-21	kworker/u4:9+events_unbound	07:44:43	0
2967384	99	96	88,6	cyclictest	3013270	-21	kworker/u4:7+events_unbound	09:35:49	0
2967384	99	95	87,5	cyclictest	3068452	-21	kworker/u4:3+events_unbound	10:56:01	0
2967385	99	94	86,6	cyclictest	2976366	-21	kworker/u4:11+events_unbound	08:05:35	1
2967385	99	92	84,6	cyclictest	2957437	-21	kworker/u4:8+events_unbound	07:19:36	1
2967385	99	92	82,7	cyclictest	3075144	-21	kworker/u4:2+events_unbound	11:16:06	1
2967385	99	91	83,6	cyclictest	3095781	-21	kworker/u4:2+events_unbound	11:36:08	1
2967385	99	88	80,6	cyclictest	3013265	-21	kworker/u4:0+events_unbound	09:40:03	1
2967384	99	87	79,6	cyclictest	2977654	-21	kworker/u4:4+events_unbound	08:44:54	0
2967385	99	86	79,5	cyclictest	3023418	-21	kworker/u4:8+events_unbound	10:10:11	1
2967385	99	84	75,6	cyclictest	3013269	-21	kworker/u4:6+events_unbound	09:35:03	1
2967384	99	84	75,4	cyclictest	257	50	irq/23-42890000.ethernet	07:10:01	0
2967384	99	84	75,4	cyclictest	257	50	irq/23-42890000.ethernet	07:10:00	0
2967384	99	82	74,6	cyclictest	2977653	-21	kworker/u4:1+events_unbound	07:54:43	0
2967384	99	81	73,6	cyclictest	2991936	-21	kworker/u4:6+events_unbound	09:00:47	0
2967384	99	79	71,5	cyclictest	2986772	-21	kworker/u4:17+events_unbound	08:24:51	0
2967384	99	79	71,5	cyclictest	2986772	-21	kworker/u4:17+events_unbound	08:24:51	0
2967385	99	78	63,6	cyclictest	2991937	-21	kworker/u4:7+events_unbound	08:54:55	1
2967384	99	77	70,5	cyclictest	2977654	-21	kworker/u4:4+events_unbound	08:30:41	0
2967384	99	77	70,5	cyclictest	2968612	-21	kworker/u4:7+events_unbound	07:39:40	0
2967385	99	76	68,6	cyclictest	2990629	-21	kworker/u4:5+events_unbound	08:49:55	1
2967385	99	75	67,6	cyclictest	2957437	-21	kworker/u4:8+events_unbound	08:39:53	1
2967384	99	75	67,6	cyclictest	2977654	-21	kworker/u4:4+events_unbound	07:49:43	0
2967385	99	73	67,4	cyclictest	3054435	-21	kworker/u4:4+events_unbound	10:45:20	1
2967385	99	73	67,4	cyclictest	3054435	-21	kworker/u4:4+events_unbound	10:45:20	1
2967385	99	73	65,6	cyclictest	3102946	-21	kworker/u4:11+events_unbound	11:46:11	1
2967385	99	73	61,5	cyclictest	2980219	-21	kworker/u4:14+events_unbound	08:25:01	1
2967385	99	73	61,5	cyclictest	2980219	-21	kworker/u4:14+events_unbound	08:25:00	1
2967384	99	73	65,6	cyclictest	3099322	-21	kworker/u4:6+events_unbound	11:50:38	0
2967384	99	73	57,5	cyclictest	3128094	-21	kworker/u4:5+events_unbound	12:21:20	0
2967384	99	73	54,6	cyclictest	3050802	-21	kworker/u4:7+events_unbound	10:35:03	0
2967385	99	72	64,6	cyclictest	2978937	-21	kworker/u4:12+events_unbound	08:15:37	1
2967385	99	72	52,7	cyclictest	3099322	-21	kworker/u4:6+events_unbound	11:45:00	1
2967385	99	69	64,4	cyclictest	3065002	-21	kworker/u4:12+events_unbound	11:10:16	1
2967385	99	63	56,5	cyclictest	2967309	-21	kworker/u4:0+events_unbound	07:34:39	1
2967385	99	63	56,5	cyclictest	2956155	-21	kworker/u4:2+events_unbound	08:00:01	1
2967385	99	62	55,5	cyclictest	2986772	-21	kworker/u4:17+events_unbound	10:05:09	1
2967385	99	61	54,5	cyclictest	3075144	-21	kworker/u4:2+events_unbound	11:20:03	1
2967385	99	61	51,7	cyclictest	3135589	-21	kworker/u4:7+events_unbound	12:40:03	1
2967385	99	59	52,5	cyclictest	3026794	-21	kworker/u4:10+events_unbound	10:05:01	1
2967385	99	58	50,6	cyclictest	3026790	-21	kworker/u4:4+events_unbound	09:55:09	1
2967385	99	57	51,4	cyclictest	3128094	-21	kworker/u4:5+events_unbound	12:25:01	1
2967385	99	57	51,4	cyclictest	0	-21	swapper/1	10:20:35	1
2967384	99	57	49,6	cyclictest	3135583	-21	kworker/u4:0+events_unbound	12:35:04	0
2967384	99	57	41,6	cyclictest	2989343	-21	kworker/u4:0+events_unbound	09:21:38	0
2967385	99	56	49,5	cyclictest	2993218	-21	kworker/u4:1+events_unbound	09:04:59	1
2967384	99	56	48,6	cyclictest	2972500	-21	kworker/u4:17+events_unbound	07:30:02	0
2967385	99	55	47,6	cyclictest	3054435	-21	kworker/u4:4+events_unbound	10:40:59	1
2967385	99	55	35,8	cyclictest	3065002	-21	kworker/u4:12+events_unbound	11:00:28	1
2967384	99	55	33,20	cyclictest	2983335	-21	fschecks_time	08:10:20	0
2967385	99	54	46,6	cyclictest	2989343	-21	kworker/u4:0+events_unbound	08:40:42	1
2967385	99	54	45,6	cyclictest	2989343	-21	kworker/u4:0+events_unbound	08:34:53	1
2967385	99	54	43,6	cyclictest	3021451	-21	dpkg	09:45:13	1
2967384	99	54	44,7	cyclictest	3128094	-21	kworker/u4:5-rpciod	12:30:46	0
2967384	99	54	44,7	cyclictest	2986772	-21	kworker/u4:17+events_unbound	09:50:51	0
2967385	99	53	42,8	cyclictest	3011920	-21	/usr/sbin/munin	09:30:21	1
2967385	99	53	40,5	cyclictest	2967309	-21	kworker/u4:0+events_unbound	08:04:45	1
2967384	99	53	47,4	cyclictest	3119978	-21	systemd	12:06:16	0
2967384	99	53	45,6	cyclictest	3084123	-21	ntp_kernel_pll_	11:15:27	0
2967384	99	53	44,7	cyclictest	3049001	-21	sshd	10:25:14	0
2967385	99	52	44,6	cyclictest	2967309	-21	kworker/u4:0+events_unbound	07:29:40	1
2967384	99	52	44,5	cyclictest	15	1	ktimers/0	10:21:44	0
2967384	99	52	24,8	cyclictest	3003375	-21	kworker/u4:5+events_unbound	09:26:05	0
2967385	99	51	42,6	cyclictest	3066961	-21	gltestperf	10:50:20	1
2967384	99	51	43,6	cyclictest	3031050	-21	munin-plugin-st	10:00:00	0
2967385	99	50	43,5	cyclictest	2976366	-21	kworker/u4:11+events_unbound	07:50:34	1
2967385	99	50	42,6	cyclictest	3111426	-21	/usr/sbin/munin	11:55:19	1
2967384	99	50	42,5	cyclictest	3087254	-21	fschecks_count	11:20:24	0
2967384	99	50	41,7	cyclictest	398	-21	systemd-logind	12:15:42	0
2967384	99	50	39,8	cyclictest	3047151	-21	kworker/u4:2-rpciod	10:30:19	0
2967384	99	50	37,8	cyclictest	3080341	-21	fschecks_time	11:10:26	0
2967384	99	50	34,6	cyclictest	3102946	-21	kworker/u4:11+events_unbound	11:46:13	0
2967384	99	50	26,6	cyclictest	2993219	-21	kworker/u4:3+events_unbound	09:14:40	0
2967384	99	50	25,7	cyclictest	3075146	-21	kworker/u4:4+events_unbound	11:25:50	0
2967385	99	49	41,6	cyclictest	2975063	-21	kworker/u4:9+events_unbound	07:45:01	1
2967385	99	49	36,10	cyclictest	3134104	-21	fschecks_count	12:25:22	1
2967384	99	49	42,5	cyclictest	2957437	-21	kworker/u4:8+events_unbound	08:35:03	0
2967384	99	49	39,6	cyclictest	3118131	-21	diskmemload	12:05:00	0
2967384	99	49	38,7	cyclictest	2993079	-21	unixbench-2d	08:45:43	0
2967384	99	49	37,9	cyclictest	2986772	-21	kworker/u4:17-rpciod	10:05:18	0
2967384	99	49	26,20	cyclictest	0	-21	swapper/0	11:35:16	0
2967385	99	48	41,5	cyclictest	3011191	-21	munin-plugin-st	09:30:00	1
2967384	99	48	42,5	cyclictest	3092153	-21	kworker/dying	11:32:03	0
2967384	99	47	40,5	cyclictest	3042582	-21	ps	10:15:38	0
2967384	99	47	37,8	cyclictest	2993917	-21	kernelversion	08:50:21	0
2967385	99	46	37,6	cyclictest	0	-21	swapper/1	11:05:27	1
2967384	99	46	34,7	cyclictest	2981387	-21	unixbench-2d	08:00:41	0
2967384	99	46	27,8	cyclictest	3064528	-21	kworker/u4:11+events_unbound	10:48:10	0
2967384	99	46	27,8	cyclictest	3064528	-21	kworker/u4:11+events_unbound	10:48:10	0
2967385	99	45	37,6	cyclictest	0	-21	swapper/1	10:55:22	1
2967385	99	45	37,6	cyclictest	0	-21	swapper/1	07:35:31	1
2967385	99	45	36,6	cyclictest	3025649	-21	proc_pri	09:50:38	1
2967384	99	45	38,5	cyclictest	2981865	-21	tr	08:05:18	0
2967384	99	45	37,5	cyclictest	2984635	-21	fschecks_time	08:15:19	0
2967384	99	45	35,7	cyclictest	2993220	-21	kworker/u4:8+events_unbound	08:59:56	0
2967385	99	44	38,4	cyclictest	2971260	-21	idleruntime-cro	07:25:01	1
2967385	99	44	37,5	cyclictest	2977493	-21	timerwakeupswit	07:45:39	1
2967385	99	44	34,8	cyclictest	0	-21	swapper/1	12:00:23	1
2967384	99	44	35,6	cyclictest	0	-21	swapper/0	10:00:31	0
2967384	99	44	34,7	cyclictest	2971029	-21	timerandwakeup	07:20:36	0
2967385	99	43	36,5	cyclictest	3108110	-21	grep	11:50:21	1
2967385	99	43	34,7	cyclictest	2997648	-21	gltestperf	09:05:21	1
2967385	99	43	33,6	cyclictest	0	-21	swapper/1	08:55:30	1
2967384	99	41	32,7	cyclictest	0	-21	swapper/0	08:25:39	0
2967384	99	41	31,7	cyclictest	2967854	-21	fschecks_time	07:10:20	0
2967384	99	40	32,5	cyclictest	2972520	-21	cron	07:30:00	0
2967385	99	31	23,6	cyclictest	0	-21	swapper/1	07:10:01	1
2967385	99	31	23,6	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