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 all highest latencies:

System rack7slot2.osadl.org (updated Sat Jul 04, 2026 00:44:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2755025	99	112	94,8	cyclictest	2788439	-21	kworker/u4:1+events_unbound	21:16:52	1
2755025	99	112	104,6	cyclictest	2909056	-21	kworker/u4:0+events_unbound	23:37:14	1
2755025	99	89	79,7	cyclictest	2824217	-21	kworker/u4:7+events_unbound	22:01:57	1
2755023	99	88	39,7	cyclictest	2919737	-21	apt-key	23:40:03	0
2755023	99	86	52,13	cyclictest	2884716	-21	ssh	23:00:15	0
2755025	99	81	73,6	cyclictest	2957823	-21	kworker/u4:7+events_unbound	00:33:43	1
2755023	99	78	62,14	cyclictest	2777955	-21	kworker/u4:1+events_unbound	20:40:00	0
2755023	99	74	65,7	cyclictest	2966116	-21	kworker/u4:9+events_unbound	00:38:44	0
2755025	99	73	66,5	cyclictest	2864519	-21	kworker/u4:10+events_unbound	23:12:07	1
2755025	99	73	66,5	cyclictest	2756251	-21	kworker/u4:6+events_unbound	19:35:00	1
2755025	99	73	64,6	cyclictest	2779348	-21	kworker/u4:0+events_unbound	21:06:52	1
2755025	99	72	62,7	cyclictest	2756250	-21	kworker/u4:5+events_unbound	19:20:01	1
2755025	99	71	65,4	cyclictest	2763928	-21	kworker/u4:9+events_unbound	20:10:02	1
2755025	99	71	63,6	cyclictest	2754957	-21	kworker/u4:3+events_unbound	19:30:00	1
2755025	99	71	54,6	cyclictest	2760093	-21	kworker/u4:17+events_unbound	19:45:00	1
2755025	99	70	62,6	cyclictest	2869103	-21	kworker/u4:2+events_unbound	23:17:09	1
2755023	99	69	62,5	cyclictest	2762631	-21	kworker/u4:7+events_unbound	20:20:02	0
2755023	99	69	60,6	cyclictest	2810557	-21	kworker/u4:4+events_unbound	21:40:00	0
2755023	99	67	59,6	cyclictest	2948737	-21	kworker/u4:1+events_unbound	00:13:29	0
2755023	99	66	58,5	cyclictest	2815095	-21	kworker/u4:6+events_unbound	21:41:55	0
2755025	99	65	56,7	cyclictest	2754956	-21	kworker/u4:2+events_unbound	19:25:02	1
2755025	99	64	55,6	cyclictest	2815096	-21	kworker/u4:8+events_unbound	21:46:56	1
2755025	99	64	51,10	cyclictest	0	-21	swapper/1	21:35:13	1
2755025	99	64	46,6	cyclictest	2756250	-21	kworker/u4:5+events_unbound	20:35:01	1
2755023	99	64	56,6	cyclictest	2926934	-21	kworker/u4:13+events_unbound	00:08:24	0
2755023	99	64	47,13	cyclictest	0	-21	swapper/0	23:40:43	0
2755023	99	62	54,6	cyclictest	2904551	-21	kworker/u4:18+events_unbound	23:22:11	0
2755023	99	62	52,7	cyclictest	2781970	-21	kworker/u4:4+events_unbound	20:56:53	0
2755025	99	61	49,7	cyclictest	2924061	-21	apt-get	23:45:12	1
2755025	99	61	49,7	cyclictest	2924061	-21	apt-get	23:45:11	1
2755023	99	60	41,17	cyclictest	2859000	-21	unixbench-2d	22:30:40	0
2755025	99	59	48,9	cyclictest	53	-21	kswapd0	21:55:01	1
2755025	99	58	51,4	cyclictest	0	-21	swapper/1	23:00:13	1
2755025	99	58	49,7	cyclictest	2746447	-21	kworker/u4:15+events_unbound	19:11:44	1
2755025	99	58	47,7	cyclictest	0	-21	swapper/1	22:35:12	1
2755023	99	58	51,5	cyclictest	2796178	-21	/usr/sbin/munin	21:20:41	0
2755023	99	58	50,6	cyclictest	2756251	-21	kworker/u4:6+events_unbound	19:51:48	0
2755023	99	58	42,14	cyclictest	2783240	-21	kworker/u4:9+events_unbound	21:11:54	0
2755025	99	57	49,6	cyclictest	2819658	-21	kworker/u4:1+events_unbound	22:17:01	1
2755025	99	57	44,8	cyclictest	2913548	-21	kworker/u4:8+events_unbound	23:33:51	1
2755023	99	57	49,6	cyclictest	2815097	-21	kworker/u4:10+events_unbound	21:51:58	0
2755023	99	57	29,23	cyclictest	53	-21	kswapd0	22:55:08	0
2755025	99	56	49,5	cyclictest	2837149	-21	kworker/u4:12+events_unbound	22:12:00	1
2755023	99	56	45,8	cyclictest	0	-21	swapper/0	22:15:12	0
2755025	99	55	45,7	cyclictest	2772871	-21	cron	20:19:59	1
2755023	99	55	47,6	cyclictest	2893734	-21	diskstats	23:10:20	0
2755023	99	55	47,6	cyclictest	2864519	-21	kworker/u4:10+events_unbound	22:42:02	0
2755025	99	54	50,3	cyclictest	2909056	-21	kworker/u4:0-rpciod	00:06:59	1
2755025	99	54	47,5	cyclictest	2918038	-21	kworker/u4:4+events_unbound	23:50:02	1
2755025	99	54	45,7	cyclictest	2781209	-21	fschecks_time	20:50:25	1
2755025	99	54	44,7	cyclictest	0	-21	swapper/1	22:40:42	1
2755025	99	54	37,14	cyclictest	0	-21	swapper/1	23:05:30	1
2755023	99	54	32,19	cyclictest	2928715	-21	ssh	23:50:15	0
2755025	99	53	44,6	cyclictest	2969766	-21	threads	00:35:44	1
2755025	99	53	43,7	cyclictest	2881264	-21	sendmail_mailqu	22:55:42	1
2755025	99	53	42,8	cyclictest	2804966	-21	/usr/sbin/munin	21:30:35	1
2755023	99	53	9,35	cyclictest	0	-21	swapper/0	21:15:32	0
2755025	99	52	43,5	cyclictest	0	-21	swapper/1	22:25:00	1
2755023	99	52	45,5	cyclictest	2897912	-21	aten2__	23:15:18	0
2755023	99	52	45,5	cyclictest	2755020	-21	cyclictest	21:48:49	0
2755023	99	52	44,6	cyclictest	2926283	-21	kworker/u4:12+events_unbound	00:03:20	0
2755023	99	52	44,6	cyclictest	2800373	-21	ntp_offset	21:25:34	0
2755023	99	52	44,6	cyclictest	2783240	-21	kworker/u4:9+events_unbound	21:01:53	0
2755023	99	52	33,17	cyclictest	2956778	-21	unixbench_singl	00:20:49	0
2755023	99	52	33,17	cyclictest	2839912	-21	aten2__	22:10:15	0
2755025	99	51	45,4	cyclictest	2777955	-21	kworker/u4:1+events_unbound	21:05:06	1
2755025	99	51	44,5	cyclictest	2855402	-21	kworker/u4:5+events_unbound	22:33:58	1
2755025	99	51	43,6	cyclictest	2944176	-21	kworker/u4:0-xprtiod	00:20:12	1
2755025	99	51	43,6	cyclictest	2904551	-21	kworker/u4:18+events_unbound	23:30:01	1
2755025	99	51	43,6	cyclictest	2904551	-21	kworker/u4:18+events_unbound	23:30:00	1
2755025	99	51	42,7	cyclictest	2918039	-21	kworker/u4:6+events_unbound	23:40:05	1
2755025	99	51	13,32	cyclictest	2785990	-21	diskmemload	21:10:16	1
2755023	99	51	42,7	cyclictest	2763929	-21	kworker/u4:11+events_unbound	20:01:49	0
2755025	99	50	43,5	cyclictest	2824217	-21	kworker/u4:7+events_unbound	21:56:57	1
2755025	99	50	39,9	cyclictest	2933177	-21	aten_r7power_en	23:55:15	1
2755025	99	50	37,10	cyclictest	2836668	-21	unixbench_singl	22:05:41	1
2755025	99	50	35,10	cyclictest	2855399	-21	kworker/u4:0-rpciod	22:27:13	1
2755025	99	49	39,6	cyclictest	2799747	-21	df_abs	21:25:16	1
2755023	99	49	42,5	cyclictest	2930725	-21	kworker/u4:14+events_unbound	00:00:01	0
2755023	99	49	42,5	cyclictest	2872056	-21	ld	22:45:31	0
2755023	99	49	40,7	cyclictest	2760093	-21	kworker/u4:17+events_unbound	19:36:46	0
2755023	99	49	40,7	cyclictest	2756251	-21	kworker/u4:6+events_unbound	20:51:51	0
2755023	99	49	2,14	cyclictest	2853975	-21	ntpq	22:25:23	0
2755025	99	48	41,5	cyclictest	2795373	-21	fschecks_count	21:20:21	1
2755025	99	48	38,7	cyclictest	2930726	-21	kworker/u4:15-rpciod	00:25:30	1
2755025	99	48	37,8	cyclictest	317	-21	systemd-journal	00:18:30	1
2755025	99	48	24,16	cyclictest	2875432	-21	modprobe	22:49:59	1
2755023	99	48	42,4	cyclictest	2804594	-21	/usr/sbin/munin	21:30:22	0
2755023	99	48	40,6	cyclictest	0	-21	swapper/0	00:15:11	0
2755023	99	48	40,5	cyclictest	2850851	-21	kworker/u4:9+events_unbound	22:25:00	0
2755023	99	48	39,6	cyclictest	2831277	-21	fschecks_count	22:00:19	0
2755023	99	48	38,8	cyclictest	2862663	-21	fschecks_time	22:35:20	0
2755023	99	48	38,6	cyclictest	0	-21	swapper/0	00:30:24	0
2755025	99	47	39,5	cyclictest	0	-21	swapper/1	23:25:01	1
2755025	99	47	38,6	cyclictest	2875968	-21	sed	22:50:17	1
2755025	99	47	38,6	cyclictest	2875968	-21	sed	22:50:17	1
2755025	99	47	36,8	cyclictest	2773934	-21	timerandwakeup	20:20:36	1
2755025	99	47	34,8	cyclictest	0	-21	swapper/1	21:40:28	1
2755023	99	47	39,5	cyclictest	2926534	-21	sshd	23:47:01	0
2755023	99	47	39,5	cyclictest	2926534	-21	sshd	23:47:01	0
2755023	99	46	8,14	cyclictest	2960605	-21	ntpq	00:25:33	0
2755023	99	46	38,6	cyclictest	2904551	-21	kworker/u4:18-rpciod	23:30:37	0
2755023	99	46	38,6	cyclictest	2771573	-21	kworker/u4:14+events_unbound	20:21:52	0
2755025	99	45	36,7	cyclictest	2768706	-21	sendmail_mailqu	20:00:35	1
2755025	99	45	36,6	cyclictest	2765594	-21	sed	19:50:16	1
2755025	99	45	34,8	cyclictest	2770820	-21	fschecks_time	20:10:19	1
2755023	99	45	37,6	cyclictest	2778614	-21	fschecks_time	20:40:25	0
2755023	99	45	36,7	cyclictest	2780741	-21	latency_hist	20:50:02	0
2755023	99	45	36,6	cyclictest	2767367	-21	grep	19:55:33	0
2755023	99	45	35,6	cyclictest	2879904	-21	cron	22:55:00	0
2755023	99	45	35,6	cyclictest	2879904	-21	cron	22:54:59	0
2755023	99	45	32,10	cyclictest	0	-21	swapper/0	22:05:40	0
2755025	99	44	37,4	cyclictest	0	-21	swapper/1	20:46:51	1
2755025	99	44	33,7	cyclictest	2930725	-21	kworker/u4:14-rpciod	00:00:32	1
2755023	99	44	38,4	cyclictest	2907687	-21	/usr/sbin/munin	23:25:36	0
2755023	99	44	38,4	cyclictest	2907687	-21	/usr/sbin/munin	23:25:36	0
2755023	99	44	38,4	cyclictest	2889341	-21	diskstats	23:05:21	0
2755023	99	44	37,5	cyclictest	2763934	-21	sshd	19:41:46	0
2755025	99	43	35,6	cyclictest	2777711	-21	switchtime	20:35:36	1
2755025	99	43	35,5	cyclictest	2930726	-21	kworker/u4:15-rpciod	00:10:18	1
2755025	99	43	29,10	cyclictest	0	-21	swapper/1	20:40:40	1
2755023	99	43	33,6	cyclictest	0	-21	swapper/0	21:55:16	0
2755025	99	42	30,9	cyclictest	0	-21	swapper/1	19:55:33	1
2755025	99	42	30,9	cyclictest	0	-21	swapper/1	19:45:37	1
2755023	99	42	35,5	cyclictest	2769629	-21	grep	20:05:19	0
2755023	99	42	35,5	cyclictest	2759761	-21	sendmail_mailqu	19:25:35	0
2755023	99	42	35,5	cyclictest	2745057	-21	kworker/u4:10+events_unbound	19:10:00	0
2755023	99	42	34,6	cyclictest	2774439	-21	aten_r7power_po	20:25:16	0
2755023	99	42	34,6	cyclictest	2774439	-21	aten_r7power_po	20:25:15	0
2755023	99	42	34,5	cyclictest	2756250	-21	kworker/u4:5+rpciod	19:30:37	0
2755025	99	41	28,9	cyclictest	0	-21	swapper/1	20:25:36	1
2755025	99	41	28,9	cyclictest	0	-21	swapper/1	20:25:35	1
2755023	99	41	34,5	cyclictest	2755201	-21	aten2__	19:10:15	0
2755023	99	41	32,7	cyclictest	2757610	-21	latency_hist	19:20:02	0
2755023	99	41	32,6	cyclictest	2764215	-21	aten_r7power_en	19:45:16	0
2755025	99	40	31,7	cyclictest	2761678	-21	aten_r7power_vo	19:35:16	1
2755023	99	40	31,6	cyclictest	2776550	-21	unixbench-2d	20:30:37	0
2755023	99	39	33,4	cyclictest	2756250	-21	kworker/u4:5-rpciod	21:05:21	0
2755023	99	39	32,4	cyclictest	0	-21	swapper/0	20:10:35	0
2755023	99	38	28,6	cyclictest	0	-21	swapper/0	19:20:14	0
2755025	99	37	28,6	cyclictest	0	-21	swapper/1	20:55:18	1
2755025	99	31	25,4	cyclictest	0	-21	swapper/1	19:10:02	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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