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 Mon Aug 10, 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
2711006	99	112	94,7	cyclictest	2739229	-21	kworker/u4:7+events_unbound	21:11:41	0
2711006	99	110	95,13	cyclictest	2916883	-21	kworker/u4:6+events_unbound	00:33:39	0
2711007	99	99	94,3	cyclictest	2899597	-21	kworker/u4:10+events_unbound	00:23:35	1
2711006	99	96	87,6	cyclictest	2916883	-21	kworker/u4:6+events_unbound	00:28:42	0
2711006	99	96	78,8	cyclictest	2868333	-21	kworker/u4:2+events_unbound	23:47:51	0
2711006	99	95	87,6	cyclictest	2903431	-21	kworker/u4:11+events_unbound	00:18:34	0
2711006	99	94	87,5	cyclictest	2890666	-21	kworker/u4:2+events_unbound	00:02:54	0
2711006	99	94	85,7	cyclictest	2732856	-21	kworker/u4:14+events_unbound	21:16:41	0
2711006	99	94	82,7	cyclictest	2842163	-21	kworker/u4:0+events_unbound	23:17:08	0
2711006	99	94	74,9	cyclictest	2702214	-21	kworker/u4:4+events_unbound	19:11:22	0
2711006	99	91	83,6	cyclictest	2828746	-21	kworker/u4:14+events_unbound	22:47:03	0
2711006	99	91	83,6	cyclictest	2828746	-21	kworker/u4:14+events_unbound	22:47:03	0
2711006	99	91	83,6	cyclictest	2780037	-21	kworker/u4:13+events_unbound	22:06:54	0
2711007	99	83	75,6	cyclictest	2881774	-21	kworker/u4:9+events_unbound	23:52:52	1
2711006	99	82	65,12	cyclictest	2868331	-21	kworker/u4:0+events_unbound	23:42:14	0
2711006	99	79	74,3	cyclictest	2730314	-21	kworker/u4:4+events_unbound	20:46:38	0
2711006	99	79	71,6	cyclictest	2692162	-21	kworker/u4:8+events_unbound	20:31:35	0
2711006	99	78	70,6	cyclictest	2730314	-21	kworker/u4:4+events_unbound	20:41:38	0
2711006	99	78	70,6	cyclictest	2727736	-21	kworker/u4:4+events_unbound	20:16:31	0
2711006	99	78	50,8	cyclictest	2802112	-21	kworker/u4:11+events_unbound	22:20:01	0
2711006	99	77	65,6	cyclictest	0	-21	swapper/0	21:55:25	0
2711006	99	74	51,21	cyclictest	53	-21	kswapd0	21:50:07	0
2711006	99	74	51,21	cyclictest	53	-21	kswapd0	21:50:06	0
2711007	99	73	65,6	cyclictest	2837645	-21	kworker/u4:2+events_unbound	23:02:07	1
2711006	99	73	66,5	cyclictest	2850478	-21	kworker/u4:10+events_unbound	23:27:10	0
2711006	99	72	64,5	cyclictest	2753116	-21	kworker/u4:20+events_unbound	21:26:45	0
2711006	99	71	64,5	cyclictest	2716078	-21	kworker/u4:2+events_unbound	19:41:23	0
2711007	99	69	61,6	cyclictest	2762113	-21	kworker/u4:6+events_unbound	22:11:53	1
2711006	99	69	62,5	cyclictest	2716085	-21	kworker/u4:13+events_unbound	19:51:26	0
2711006	99	66	59,5	cyclictest	2695793	-21	kworker/u4:1+events_unbound	20:21:35	0
2711007	99	65	58,5	cyclictest	2757614	-21	kworker/u4:10+events_unbound	21:31:46	1
2711006	99	65	57,6	cyclictest	2695793	-21	kworker/u4:1+events_unbound	20:11:31	0
2711006	99	65	53,9	cyclictest	2884281	-21	/usr/sbin/munin	23:50:19	0
2711007	99	64	46,5	cyclictest	2899597	-21	kworker/u4:10+events_unbound	00:11:12	1
2711006	99	64	52,8	cyclictest	53	-21	kswapd0	22:40:08	0
2711007	99	63	40,15	cyclictest	53	-21	kswapd0	21:50:09	1
2711007	99	63	40,15	cyclictest	53	-21	kswapd0	21:50:09	1
2711007	99	62	55,5	cyclictest	2868331	-21	kworker/u4:0+events_unbound	23:37:15	1
2711006	99	61	53,6	cyclictest	2757614	-21	kworker/u4:10+events_unbound	21:45:02	0
2711006	99	60	51,6	cyclictest	0	-21	swapper/0	22:55:36	0
2711006	99	60	50,8	cyclictest	2857603	-21	aten_r7power_cu	23:20:17	0
2711006	99	60	48,8	cyclictest	2902553	-21	switchtime	00:10:37	0
2711006	99	59	48,8	cyclictest	2866623	-21	fschecks_count	23:30:22	0
2711007	99	58	49,7	cyclictest	2839564	-21	cron	22:59:59	1
2711007	99	58	49,7	cyclictest	2732856	-21	kworker/u4:14+events_unbound	21:01:40	1
2711007	99	58	45,10	cyclictest	2882229	-21	systemd	23:47:49	1
2711006	99	58	51,5	cyclictest	2819727	-21	kworker/u4:11+events_unbound	22:53:45	0
2711006	99	58	50,6	cyclictest	2695793	-21	kworker/u4:1+events_unbound	19:56:26	0
2711007	99	57	48,6	cyclictest	2739231	-21	kworker/u4:11+events_unbound	21:06:41	1
2711007	99	57	48,6	cyclictest	2717442	-21	kworker/u4:14+events_unbound	20:01:26	1
2711007	99	57	40,5	cyclictest	2815832	-21	kworker/u4:5+events_unbound	22:52:05	1
2711006	99	57	50,5	cyclictest	2700912	-21	kworker/u4:0+events_unbound	20:06:29	0
2711006	99	57	42,9	cyclictest	2881771	-21	kworker/u4:5-events_power_efficient	00:21:22	0
2711007	99	56	4,49	cyclictest	2924235	-21	ssh	00:35:29	1
2711006	99	56	6,39	cyclictest	2751869	-21	ssh	21:20:34	0
2711007	99	55	48,5	cyclictest	2707297	-21	kworker/u4:11+events_unbound	19:31:23	1
2711007	99	55	47,6	cyclictest	2712239	-21	kworker/u4:9+events_unbound	19:36:24	1
2711006	99	55	46,6	cyclictest	2840352	-21	sh	23:00:20	0
2711007	99	54	48,4	cyclictest	2842164	-21	kworker/u4:1+events_unbound	23:10:02	1
2711007	99	54	44,7	cyclictest	0	-21	swapper/1	21:15:17	1
2711006	99	54	46,6	cyclictest	2868333	-21	kworker/u4:2+events_unbound	23:35:06	0
2711006	99	54	38,10	cyclictest	2762112	-21	kworker/u4:4-rpciod	21:35:38	0
2711006	99	54	33,7	cyclictest	2846656	-21	kworker/u4:6+events_unbound	23:07:49	0
2711007	99	53	47,4	cyclictest	2700912	-21	kworker/u4:0+events_unbound	20:10:01	1
2711007	99	53	46,5	cyclictest	2815831	-21	kworker/u4:0+events_unbound	22:40:03	1
2711007	99	53	42,8	cyclictest	2722336	-21	timerandwakeup	19:50:38	1
2711007	99	53	38,4	cyclictest	2780037	-21	kworker/u4:13+events_unbound	21:56:48	1
2711006	99	53	33,17	cyclictest	0	-21	swapper/0	19:30:07	0
2711007	99	52	45,5	cyclictest	2774111	-21	mailstats	21:45:39	1
2711007	99	52	43,7	cyclictest	400	-21	systemd-logind	21:26:43	1
2711007	99	52	43,6	cyclictest	2730818	-21	fschecks_time	20:25:20	1
2711006	99	52	41,8	cyclictest	2897554	-21	tune2fs	00:05:24	0
2711006	99	52	33,10	cyclictest	0	-21	swapper/0	19:25:01	0
2711006	99	52	16,30	cyclictest	256	50	irq/23-42890000.ethernet	20:00:09	0
2711007	99	51	44,5	cyclictest	2762110	-21	kworker/u4:2+events_unbound	21:36:46	1
2711007	99	51	43,6	cyclictest	2877297	-21	kworker/u4:13+events_unbound	00:08:23	1
2711007	99	51	43,6	cyclictest	2851258	-21	sshd	23:12:33	1
2711007	99	51	35,13	cyclictest	2809972	-21	timerwakeupswit	22:25:40	1
2711006	99	51	44,5	cyclictest	2735420	-21	kworker/u4:5+events_unbound	20:56:41	0
2711007	99	50	43,5	cyclictest	2814494	-21	unixbench-2d	22:30:38	1
2711007	99	50	42,6	cyclictest	2735924	-21	fschecks_time	20:45:20	1
2711007	99	50	41,7	cyclictest	2730314	-21	kworker/u4:4+events_unbound	20:51:40	1
2711006	99	50	43,5	cyclictest	2802108	-21	kworker/u4:7+events_unbound	22:21:55	0
2711006	99	50	42,6	cyclictest	2802111	-21	kworker/u4:10+events_unbound	22:32:00	0
2711007	99	49	41,6	cyclictest	0	-21	swapper/1	22:35:12	1
2711007	99	49	40,6	cyclictest	2731578	-21	kworker/u4:7+events_unbound	20:36:36	1
2711007	99	49	39,7	cyclictest	0	-21	swapper/1	23:15:31	1
2711006	99	49	42,5	cyclictest	2795826	-21	sed	22:10:20	0
2711006	99	49	42,5	cyclictest	2757614	-21	kworker/u4:10+events_unbound	21:30:02	0
2711006	99	49	41,6	cyclictest	2815832	-21	kworker/u4:5+events_unbound	22:35:02	0
2711006	99	49	41,6	cyclictest	2739792	-21	fschecks_time	21:00:19	0
2711006	99	49	40,6	cyclictest	2768904	-21	aten_r7power_vo	21:40:18	0
2711006	99	49	40,6	cyclictest	2768904	-21	aten_r7power_vo	21:40:17	0
2711006	99	49	39,7	cyclictest	2850477	-21	kworker/u4:8-rpciod	23:12:07	0
2711007	99	48	41,5	cyclictest	2715292	-21	fschecks_count	19:25:21	1
2711006	99	48	39,7	cyclictest	2808905	-21	aten_r7power_en	22:25:17	0
2711006	99	48	39,6	cyclictest	2739231	-21	kworker/u4:11+rpciod	21:10:02	0
2711006	99	48	38,7	cyclictest	2886253	-21	kworker/u4:4+events_unbound	00:35:20	0
2711006	99	48	27,19	cyclictest	2717894	-21	fschecks_count	19:35:23	0
2711007	99	47	40,5	cyclictest	2881774	-21	kworker/u4:9+events_unbound	00:01:45	1
2711007	99	47	39,5	cyclictest	0	-21	swapper/1	22:21:56	1
2711007	99	47	29,5	cyclictest	2890667	-21	kworker/u4:3+events_unbound	23:57:54	1
2711007	99	46	39,5	cyclictest	2857868	-21	fschecks_count	23:20:21	1
2711007	99	46	39,5	cyclictest	2828061	-21	/usr/sbin/munin	22:45:45	1
2711007	99	46	39,5	cyclictest	2828061	-21	/usr/sbin/munin	22:45:44	1
2711007	99	46	38,6	cyclictest	2906359	-21	gltestperf	00:15:22	1
2711007	99	46	37,7	cyclictest	2730302	-21	systemd	20:21:32	1
2711007	99	46	34,9	cyclictest	2729042	-21	cron	20:20:01	1
2711006	99	46	27,5	cyclictest	0	-21	swapper/0	22:00:46	0
2711007	99	45	39,4	cyclictest	2915590	-21	ntpq	00:25:37	1
2711007	99	45	38,5	cyclictest	2875194	-21	aten_r7power_cu	23:40:15	1
2711007	99	45	35,8	cyclictest	2791931	-21	switchtime	22:05:39	1
2711006	99	45	35,7	cyclictest	0	-21	swapper/0	23:55:21	0
2711007	99	44	37,5	cyclictest	2770026	-21	unixbench_multi	21:40:53	1
2711007	99	44	37,5	cyclictest	2770026	-21	unixbench_multi	21:40:53	1
2711007	99	44	37,4	cyclictest	0	-21	swapper/1	21:20:12	1
2711007	99	44	36,6	cyclictest	2727396	-21	sendmail_mailqu	20:10:40	1
2711007	99	44	35,7	cyclictest	2799882	-21	aten_r7power_en	22:15:15	1
2711007	99	44	34,7	cyclictest	2919360	-21	cpu	00:30:17	1
2711006	99	44	35,7	cyclictest	2720251	-21	aten_r7power_cu	19:45:15	0
2711006	99	44	35,5	cyclictest	2735420	-21	kworker/u4:5-xprtiod	20:50:34	0
2711006	99	44	34,8	cyclictest	2713571	-21	sendmail	19:19:59	0
2711007	99	43	33,8	cyclictest	2786420	-21	cut	22:00:17	1
2711007	99	43	33,7	cyclictest	2712231	-21	kworker/u4:5-rpciod	19:20:00	1
2711007	99	43	33,6	cyclictest	0	-21	swapper/1	19:20:26	1
2711007	99	42	35,5	cyclictest	2866555	-21	df_abs	23:30:19	1
2711007	99	42	33,6	cyclictest	0	-21	swapper/1	21:10:41	1
2711006	99	42	35,5	cyclictest	2733746	-21	grep	20:35:36	0
2711006	99	42	30,9	cyclictest	2731602	-21	modprobe	20:30:00	0
2711007	99	41	34,5	cyclictest	2732629	-21	timerandwakeup	20:30:37	1
2711007	99	41	32,7	cyclictest	2734389	-21	aten_r7power_cu	20:40:17	1
2711007	99	41	31,7	cyclictest	2711088	-21	latency_hist	19:10:01	1
2711006	99	41	19,15	cyclictest	2716100	-21	modprobe	19:29:59	0
2711007	99	40	34,4	cyclictest	2721265	-21	systemd	19:46:22	1
2711007	99	39	31,6	cyclictest	2738174	-21	aten2__	20:55:19	1
2711007	99	38	32,4	cyclictest	2719339	-21	gltestperf	19:40:21	1
2711007	99	38	28,6	cyclictest	0	-21	swapper/1	23:25:35	1
2711007	99	38	26,9	cyclictest	0	-21	swapper/1	19:55:38	1
2711007	99	36	26,8	cyclictest	0	-21	swapper/1	19:10:35	1
2711006	99	30	5,17	cyclictest	2711003	-21	cyclictest	19:10:01	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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