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 376 highest latencies:

System rack7slot2.osadl.org (updated Tue Dec 02, 2025 00:44:05)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2964810	99	136	126,7	cyclictest	2962272	-21	kworker/u4:14+events_unbound	19:12:38	0
2964810	99	132	125,5	cyclictest	3111979	-21	kworker/u4:5+events_unbound	00:03:53	0
2964810	99	129	121,6	cyclictest	3154347	-21	kworker/u4:6+events_unbound	00:38:59	0
2964810	99	128	120,5	cyclictest	3034984	-21	kworker/u4:0+events_unbound	22:03:17	0
2964810	99	126	119,5	cyclictest	3075871	-21	kworker/u4:6+events_unbound	22:48:28	0
2964810	99	123	116,5	cyclictest	3103848	-21	kworker/u4:3+events_unbound	23:23:35	0
2964810	99	123	114,7	cyclictest	2576836	-21	kworker/u4:5+events_unbound	19:32:43	0
2964810	99	119	111,6	cyclictest	3115556	-21	kworker/u4:10+events_unbound	23:38:42	0
2964810	99	117	103,6	cyclictest	3067553	-21	kworker/u4:2+events_unbound	23:03:32	0
2964810	99	113	105,6	cyclictest	2975075	-21	kworker/u4:11+events_unbound	19:52:50	0
2964810	99	110	102,6	cyclictest	3147285	-21	kworker/u4:5+events_unbound	00:18:54	0
2964810	99	107	99,6	cyclictest	3034986	-21	kworker/u4:2+events_unbound	22:08:18	0
2964810	99	107	97,7	cyclictest	3095823	-21	kworker/u4:2+events_unbound	23:13:35	0
2964810	99	107	100,5	cyclictest	2984103	-21	kworker/u4:17+events_unbound	21:38:14	0
2964810	99	105	98,5	cyclictest	3002439	-21	kworker/u4:13+events_unbound	21:43:15	0
2964810	99	105	98,5	cyclictest	3002439	-21	kworker/u4:13+events_unbound	21:43:15	0
2964811	99	104	97,5	cyclictest	2975074	-21	kworker/u4:8+events_unbound	20:22:55	1
2964810	99	104	92,5	cyclictest	3153844	-21	kworker/u4:2+events_unbound	00:28:54	0
2964811	99	101	93,5	cyclictest	2984103	-21	kworker/u4:17+events_unbound	21:38:13	1
2964810	99	101	92,6	cyclictest	3014259	-21	kworker/u4:7+events_unbound	21:48:14	0
2964811	99	95	76,6	cyclictest	2972484	-21	kworker/u4:1+events_unbound	20:07:53	1
2964811	99	95	65,27	cyclictest	0	-21	swapper/1	00:15:34	1
2964810	99	95	89,4	cyclictest	3039130	-21	kworker/u4:5+events_unbound	22:18:20	0
2964810	99	95	87,6	cyclictest	2978942	-21	kworker/u4:6+events_unbound	20:37:58	0
2964810	99	94	86,6	cyclictest	2981503	-21	kworker/u4:7+events_unbound	20:32:57	0
2964811	99	91	84,5	cyclictest	3157569	-21	kworker/u4:10+events_unbound	00:33:58	1
2964811	99	91	83,6	cyclictest	2989254	-21	kworker/u4:12+events_unbound	21:28:09	1
2964810	99	91	83,6	cyclictest	2978942	-21	kworker/u4:6+events_unbound	20:27:58	0
2964810	99	89	80,7	cyclictest	2966037	-21	kworker/u4:4+events_unbound	19:47:49	0
2964811	99	87	79,6	cyclictest	2576836	-21	kworker/u4:5+events_unbound	20:12:53	1
2964811	99	86	78,5	cyclictest	3047392	-21	kworker/u4:3+events_unbound	22:13:19	1
2964810	99	86	78,6	cyclictest	3124276	-21	kworker/u4:7+events_unbound	23:48:47	0
2964811	99	85	79,4	cyclictest	2977636	-21	kworker/u4:0+events_unbound	20:02:53	1
2964811	99	85	77,6	cyclictest	3002439	-21	kworker/u4:13+events_unbound	21:43:13	1
2964811	99	85	77,6	cyclictest	3002439	-21	kworker/u4:13+events_unbound	21:43:13	1
2964811	99	83	75,6	cyclictest	2995772	-21	kworker/u4:0+events_unbound	21:13:07	1
2964811	99	79	62,5	cyclictest	3150972	-21	kworker/u4:1+events_unbound	00:23:56	1
2964810	99	79	71,6	cyclictest	2962271	-21	kworker/u4:12+events_unbound	19:27:42	0
2964810	99	79	70,6	cyclictest	3115556	-21	kworker/u4:10+events_unbound	00:13:51	0
2964810	99	76	65,8	cyclictest	2995772	-21	kworker/u4:0+events_unbound	21:18:08	0
2964810	99	73	66,5	cyclictest	2966037	-21	kworker/u4:4+events_unbound	20:22:57	0
2964810	99	72	62,7	cyclictest	3120215	-21	kworker/u4:1+events_unbound	00:08:52	0
2964810	99	71	58,8	cyclictest	3075871	-21	kworker/u4:6+events_unbound	22:55:02	0
2964811	99	69	61,6	cyclictest	2971200	-21	kworker/u4:15+events_unbound	20:17:56	1
2964811	99	66	59,5	cyclictest	2978942	-21	kworker/u4:6+events_unbound	20:27:56	1
2964811	99	66	57,7	cyclictest	2972486	-21	kworker/u4:3+events_unbound	19:57:50	1
2964811	99	65	57,6	cyclictest	2998346	-21	kworker/u4:1+events_unbound	21:23:07	1
2964811	99	65	56,7	cyclictest	3131617	-21	kworker/u4:15+events_unbound	00:13:53	1
2964811	99	64	56,6	cyclictest	3039130	-21	kworker/u4:5+events_unbound	22:33:24	1
2964811	99	64	51,6	cyclictest	2962272	-21	kworker/u4:14+events_unbound	19:10:02	1
2964810	99	62	54,6	cyclictest	3091776	-21	kworker/u4:11+events_unbound	23:17:01	0
2964810	99	62	52,8	cyclictest	2972485	-21	kworker/u4:2-rpciod	20:55:48	0
2964810	99	61	7,14	cyclictest	37	-21	kcompactd0	20:55:11	0
2964810	99	61	53,5	cyclictest	0	-21	swapper/0	22:31:35	0
2964811	99	59	52,5	cyclictest	3158104	-21	kworker/u4:11+events_unbound	00:40:02	1
2964811	99	57	51,4	cyclictest	3101946	-21	aten_r7power_vo	23:20:17	1
2964810	99	57	49,6	cyclictest	3067554	-21	kworker/u4:3+events_unbound	22:43:25	0
2964810	99	57	48,7	cyclictest	3077739	-21	aten2__	22:50:17	0
2964811	99	56	47,7	cyclictest	314	-21	systemd-journal	23:03:32	1
2964811	99	56	40,5	cyclictest	3095823	-21	kworker/u4:2+events_unbound	23:15:00	1
2964811	99	55	47,6	cyclictest	2981503	-21	kworker/u4:7+events_unbound	20:48:00	1
2964811	99	55	44,6	cyclictest	0	-21	swapper/1	21:45:33	1
2964810	99	55	46,7	cyclictest	379	-21	dbus-daemon	21:53:14	0
2964811	99	54	46,6	cyclictest	2982794	-21	kworker/u4:11+events_unbound	21:08:04	1
2964811	99	54	43,8	cyclictest	0	-21	swapper/1	22:50:37	1
2964810	99	54	45,7	cyclictest	3115556	-21	kworker/u4:10+events_unbound	23:43:43	0
2964811	99	52	44,5	cyclictest	3130687	-21	/usr/sbin/munin	23:55:39	1
2964811	99	52	43,7	cyclictest	2981503	-21	kworker/u4:7+events_unbound	21:03:03	1
2964810	99	52	44,6	cyclictest	2975075	-21	kworker/u4:11+events_unbound	20:00:02	0
2964811	99	51	47,2	cyclictest	3067553	-21	kworker/u4:2+events_unbound	22:40:01	1
2964811	99	51	44,5	cyclictest	3041077	-21	aten_r7power_vo	22:05:16	1
2964811	99	51	44,5	cyclictest	2965699	-21	sendmail_mailqu	19:10:36	1
2964811	99	51	44,5	cyclictest	0	-21	swapper/1	23:40:13	1
2964811	99	51	43,6	cyclictest	3084647	-21	systemd	22:58:30	1
2964811	99	51	42,7	cyclictest	53	-21	kswapd0	23:50:11	1
2964811	99	51	39,6	cyclictest	2576836	-21	kworker/u4:5+events_unbound	19:17:38	1
2964810	99	51	7,28	cyclictest	3004941	-21	ssh	21:20:27	0
2964810	99	51	45,4	cyclictest	3002437	-21	kworker/u4:9-nfsiod	21:30:28	0
2964810	99	51	43,6	cyclictest	3092722	-21	systemd	23:08:32	0
2964811	99	50	42,5	cyclictest	3001103	-21	/usr/sbin/munin	21:15:36	1
2964810	99	50	43,5	cyclictest	3058309	-21	switchtime	22:25:41	0
2964810	99	50	43,5	cyclictest	2968631	-21	kworker/u4:6+events_unbound	19:24:38	0
2964810	99	50	40,7	cyclictest	2995823	-21	diskmemload	21:58:16	0
2964811	99	49	41,6	cyclictest	2981503	-21	kworker/u4:7+events_unbound	20:53:01	1
2964811	99	49	41,4	cyclictest	0	-21	swapper/1	23:25:30	1
2964811	99	49	40,7	cyclictest	3074219	-21	/usr/sbin/munin	22:45:25	1
2964811	99	49	40,6	cyclictest	3067559	-21	kworker/u4:10+events_unbound	22:40:22	1
2964811	99	49	36,10	cyclictest	504	-21	ntpd	23:30:35	1
2964811	99	48	41,4	cyclictest	3054262	-21	sort	22:20:39	1
2964811	99	48	10,4	cyclictest	17	1	rcu_preempt	21:30:33	1
2964810	99	48	42,4	cyclictest	0	-21	swapper/0	23:25:35	0
2964810	99	47	40,5	cyclictest	3149953	-21	timerandwakeup	00:20:41	0
2964811	99	46	40,4	cyclictest	3036580	-21	modprobe	22:00:00	1
2964811	99	46	37,6	cyclictest	3098066	-21	diskstats	23:15:19	1
2964811	99	46	36,7	cyclictest	0	-21	swapper/1	00:25:36	1
2964811	99	46	36,6	cyclictest	3125590	-21	modprobe	23:50:00	1
2964810	99	46	39,5	cyclictest	3115557	-21	kworker/u4:12+events_unbound	23:53:38	0
2964810	99	46	38,6	cyclictest	2989731	-21	fschecks_count	20:45:20	0
2964810	99	46	38,5	cyclictest	3009162	-21	/usr/sbin/munin	21:25:35	0
2964810	99	46	37,7	cyclictest	2994466	-21	unixbench_singl	21:00:40	0
2964810	99	46	28,6	cyclictest	3067559	-21	kworker/u4:10+events_unbound	22:38:37	0
2964811	99	45	38,5	cyclictest	3037687	-21	ld	22:00:31	1
2964811	99	45	37,6	cyclictest	3133772	-21	cpu	00:00:17	1
2964811	99	45	37,5	cyclictest	3014259	-21	kworker/u4:7-rpciod	21:50:39	1
2964811	99	45	36,7	cyclictest	3114077	-21	df_abs	23:35:20	1
2964810	99	45	39,4	cyclictest	2997338	-21	grep	21:10:40	0
2964810	99	45	38,5	cyclictest	2971200	-21	kworker/u4:15+events_unbound	19:58:56	0
2964810	99	45	37,6	cyclictest	2576836	-21	kworker/u4:5+events_unbound	20:06:02	0
2964810	99	45	35,7	cyclictest	0	-21	swapper/0	00:00:01	0
2964811	99	44	9,25	cyclictest	3138096	-21	ssh	00:05:30	1
2964811	99	44	37,5	cyclictest	3049508	-21	gltestperf	22:15:21	1
2964811	99	44	36,5	cyclictest	0	-21	swapper/1	19:45:00	1
2964810	99	44	38,5	cyclictest	2972484	-21	kworker/u4:1+events_unbound	21:05:02	0
2964810	99	44	37,5	cyclictest	2972486	-21	kworker/u4:3+events_unbound	19:39:37	0
2964810	99	44	37,5	cyclictest	0	-21	swapper/0	23:33:38	0
2964810	99	44	36,6	cyclictest	3155956	-21	aten_r7power_po	00:30:15	0
2964811	99	43	37,4	cyclictest	2988421	-21	fschecks_count	20:40:19	1
2964811	99	43	35,5	cyclictest	0	-21	swapper/1	23:08:32	1
2964811	99	43	34,7	cyclictest	2970526	-21	gltestperf	19:30:21	1
2964810	99	43	36,5	cyclictest	2972987	-21	cut	19:40:20	0
2964810	99	43	30,11	cyclictest	3047392	-21	kworker/u4:3-rpciod	22:15:00	0
2964811	99	42	34,6	cyclictest	2964808	-21	cyclictest	20:30:20	1
2964811	99	42	33,6	cyclictest	2969160	-21	fschecks_time	19:25:21	1
2964810	99	42	35,5	cyclictest	2982738	-21	unixbench_singl	20:15:39	0
2964811	99	41	35,4	cyclictest	2975081	-21	systemd	19:47:47	1
2964811	99	41	34,4	cyclictest	2984103	-21	kworker/u4:17-rpciod	20:35:17	1
2964811	99	41	31,7	cyclictest	0	-21	swapper/1	22:25:38	1
2964810	99	41	34,5	cyclictest	2989297	-21	apt	20:45:00	0
2964810	99	41	31,7	cyclictest	0	-21	swapper/0	22:20:32	0
2964811	99	40	33,5	cyclictest	2976404	-21	basename	19:55:00	1
2964811	99	40	33,5	cyclictest	0	-21	swapper/1	20:55:36	1
2964811	99	40	32,5	cyclictest	2576836	-21	kworker/u4:5-rpciod	19:35:37	1
2964810	99	40	30,7	cyclictest	2981185	-21	mailstats	20:10:37	0
2964810	99	40	23,6	cyclictest	17	1	rcu_preempt	19:15:20	0
2964810	99	39	3,28	cyclictest	2964808	-21	cyclictest	19:10:00	0
2964811	99	38	27,8	cyclictest	0	-21	swapper/1	19:20:33	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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