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 Tue Dec 09, 2025 00:44:06)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3639678	99	137	129,5	cyclictest	3820837	-21	kworker/u4:3+events_unbound	00:23:05	1
3639678	99	108	99,7	cyclictest	3789074	-21	kworker/u4:5+events_unbound	23:37:52	1
3639677	99	98	71,16	cyclictest	53	-21	kswapd0	23:35:11	0
3639678	99	96	88,5	cyclictest	3745162	-21	kworker/u4:10+events_unbound	22:47:31	1
3639678	99	92	83,7	cyclictest	3721396	-21	kworker/u4:3+events_unbound	22:12:42	1
3639677	99	89	80,7	cyclictest	3685184	-21	kworker/u4:1+events_unbound	21:27:39	0
3639678	99	86	77,6	cyclictest	3644792	-21	kworker/u4:8+events_unbound	20:42:09	1
3639678	99	84	73,8	cyclictest	3669366	-21	kworker/u4:14+events_unbound	21:37:38	1
3639677	99	83	56,23	cyclictest	53	-21	kswapd0	23:20:07	0
3639678	99	82	74,5	cyclictest	3709258	-21	kworker/u4:10+events_unbound	22:27:27	1
3639678	99	81	73,6	cyclictest	3761213	-21	kworker/u4:7+events_unbound	23:02:35	1
3639678	99	80	68,6	cyclictest	3669364	-21	kworker/u4:3+events_unbound	21:07:12	1
3639678	99	75	67,6	cyclictest	3647356	-21	kworker/u4:4+events_unbound	19:52:26	1
3639678	99	75	66,7	cyclictest	3649932	-21	kworker/u4:18+events_unbound	19:56:56	1
3639678	99	74	66,6	cyclictest	3664133	-21	kworker/u4:4+events_unbound	21:17:16	1
3639678	99	74	66,6	cyclictest	3639605	-21	kworker/u4:0+events_unbound	19:36:53	1
3639678	99	74	66,6	cyclictest	3435758	-21	kworker/u4:4+events_unbound	19:12:18	1
3639678	99	73	66,5	cyclictest	3640910	-21	kworker/u4:9+events_unbound	19:31:51	1
3639678	99	73	62,7	cyclictest	3793097	-21	kworker/u4:3+events_unbound	23:57:56	1
3639678	99	72	65,5	cyclictest	3664134	-21	kworker/u4:5+events_unbound	20:57:14	1
3639677	99	72	67,3	cyclictest	3725433	-21	kworker/u4:0+events_unbound	22:37:30	0
3639677	99	72	63,7	cyclictest	3820837	-21	kworker/u4:3+events_unbound	00:18:05	0
3639677	99	72	61,8	cyclictest	53	-21	kswapd0	23:50:10	0
3639677	99	71	62,6	cyclictest	3769254	-21	kworker/u4:15+events_unbound	23:12:38	0
3639678	99	70	62,6	cyclictest	3745161	-21	kworker/u4:9+events_unbound	22:42:47	1
3639677	99	69	60,5	cyclictest	3795745	-21	ssh	23:45:31	0
3639678	99	68	61,5	cyclictest	3651231	-21	kworker/u4:9+events_unbound	20:07:01	1
3639677	99	67	59,5	cyclictest	3725440	-21	kworker/u4:9+events_unbound	22:20:01	0
3639678	99	65	57,6	cyclictest	3793097	-21	kworker/u4:3+events_unbound	00:02:59	1
3639678	99	64	46,5	cyclictest	3689245	-21	kworker/u4:6+events_unbound	21:32:38	1
3639677	99	64	55,6	cyclictest	3765238	-21	kworker/u4:13+events_unbound	23:27:43	0
3639677	99	64	45,13	cyclictest	3709255	-21	kworker/u4:3+events_unbound	22:02:24	0
3639678	99	63	55,6	cyclictest	3606282	-21	kworker/u4:2+events_unbound	19:27:21	1
3639678	99	63	55,6	cyclictest	3606282	-21	kworker/u4:2+events_unbound	19:27:20	1
3639678	99	63	55,5	cyclictest	3753100	-21	kworker/u4:5+events_unbound	23:17:50	1
3639677	99	63	54,6	cyclictest	3725435	-21	kworker/u4:2+events_unbound	22:22:42	0
3639677	99	63	20,15	cyclictest	3699269	-21	apt-get	21:45:14	0
3639677	99	62	40,20	cyclictest	3662873	-21	ls	20:40:00	0
3639678	99	61	3,46	cyclictest	3704124	-21	ssh	21:50:34	1
3639677	99	60	50,5	cyclictest	3639650	-21	munin-run	19:10:00	0
3639678	99	59	51,6	cyclictest	3651230	-21	kworker/u4:2+events_unbound	21:02:13	1
3639677	99	59	44,11	cyclictest	3830177	-21	fschecks_count	00:30:21	0
3639678	99	58	42,11	cyclictest	0	-21	swapper/1	21:55:36	1
3639677	99	58	18,12	cyclictest	3648863	-21	apt-get	19:45:12	0
3639678	99	57	50,5	cyclictest	3661534	-21	kworker/u4:10+events_unbound	20:32:31	1
3639678	99	57	48,6	cyclictest	3644792	-21	kworker/u4:8+events_unbound	20:52:33	1
3639677	99	56	48,6	cyclictest	3761212	-21	kworker/u4:4+events_unbound	23:07:38	0
3639678	99	55	47,6	cyclictest	3701687	-21	sd-accept	21:47:38	1
3639677	99	55	46,6	cyclictest	3689243	-21	kworker/u4:4+events_unbound	21:42:37	0
3639677	99	55	46,6	cyclictest	3689243	-21	kworker/u4:4+events_unbound	21:42:37	0
3639678	99	54	48,4	cyclictest	3776823	-21	kworker/u4:3+events_unbound	23:25:02	1
3639678	99	54	46,5	cyclictest	3791942	-21	processes	23:40:37	1
3639677	99	54	46,6	cyclictest	3765238	-21	kworker/u4:13+events_unbound	23:17:41	0
3639678	99	53	44,7	cyclictest	3649937	-21	systemd	19:46:54	1
3639678	99	53	43,7	cyclictest	3751170	-21	aten_r7power_cu	22:50:18	1
3639678	99	53	40,10	cyclictest	3786755	-21	munin-run	23:35:00	1
3639678	99	53	34,6	cyclictest	3753098	-21	kworker/u4:1+events_unbound	23:27:51	1
3639678	99	52	44,6	cyclictest	3642195	-21	systemd	19:17:18	1
3639678	99	52	43,6	cyclictest	3735452	-21	/usr/sbin/munin	22:30:20	1
3639678	99	52	43,6	cyclictest	3658741	-21	threads	20:20:37	1
3639677	99	52	44,5	cyclictest	3791593	-21	kernelversion	23:40:23	0
3639677	99	52	43,6	cyclictest	0	-21	swapper/0	23:35:03	0
3639677	99	52	4,23	cyclictest	3818585	-21	rm	00:15:01	0
3639677	99	52	11,15	cyclictest	3648115	-21	ntpq	19:40:23	0
3639677	99	52	11,15	cyclictest	3648115	-21	ntpq	19:40:23	0
3639677	99	52	11,14	cyclictest	3824056	-21	ssh	00:20:56	0
3639678	99	51	41,7	cyclictest	3683337	-21	df_abs	21:25:18	1
3639678	99	51	3,35	cyclictest	3826334	-21	apt-get	00:25:13	1
3639677	99	51	46,3	cyclictest	15	1	ktimers/0	20:17:39	0
3639677	99	51	44,5	cyclictest	3708297	-21	sendmail_mailqu	21:55:38	0
3639677	99	51	44,5	cyclictest	3689301	-21	ssh	21:32:16	0
3639677	99	51	42,6	cyclictest	3647419	-21	basename	19:40:01	0
3639677	99	51	41,8	cyclictest	3755635	-21	/usr/sbin/munin	22:55:25	0
3639678	99	50	44,5	cyclictest	3639676	-21	cyclictest	00:18:04	1
3639678	99	50	44,4	cyclictest	3665545	-21	latency_hist	20:50:02	1
3639678	99	50	43,5	cyclictest	3639676	-21	cyclictest	23:52:56	1
3639678	99	50	42,5	cyclictest	3724216	-21	ssh	22:15:38	1
3639678	99	50	41,7	cyclictest	3797164	-21	kworker/u4:6+events_unbound	23:47:57	1
3639677	99	50	9,15	cyclictest	3744971	-21	ssh	22:41:29	0
3639677	99	50	42,5	cyclictest	0	-21	swapper/0	00:25:36	0
3639677	99	50	40,7	cyclictest	3705147	-21	kworker/u4:13+events_unbound	21:52:21	0
3639677	99	50	31,16	cyclictest	0	-21	swapper/0	21:25:01	0
3639677	99	50	27,19	cyclictest	3666988	-21	apt-get	20:55:17	0
3639677	99	50	22,23	cyclictest	3715348	-21	apt-get	22:05:14	0
3639677	99	50	12,16	cyclictest	3691887	-21	ntpq	21:35:30	0
3639678	99	49	38,8	cyclictest	3643523	-21	cron	19:25:01	1
3639678	99	49	38,7	cyclictest	0	-21	swapper/1	22:55:21	1
3639677	99	49	39,7	cyclictest	0	-21	swapper/0	00:00:26	0
3639678	99	48	41,5	cyclictest	1060	-21	snmpd	22:05:25	1
3639678	99	48	33,8	cyclictest	3741048	-21	kworker/u4:13-rpciod	22:39:05	1
3639677	99	48	36,10	cyclictest	3646108	-21	munin-run	19:34:59	0
3639677	99	48	35,10	cyclictest	0	-21	swapper/0	22:25:29	0
3639677	99	48	29,13	cyclictest	3641108	-21	apt-get	19:15:15	0
3639677	99	48	10,14	cyclictest	3654552	-21	ntpq	20:05:25	0
3639677	99	48	10,13	cyclictest	3674320	-21	ssh	21:14:24	0
3639678	99	47	40,5	cyclictest	3811991	-21	timerwakeupswit	00:05:40	1
3639677	99	47	9,14	cyclictest	3811431	-21	irqstats	00:05:23	0
3639677	99	47	29,16	cyclictest	3806574	-21	lockfile-remove	00:00:02	0
3639677	99	47	18,6	cyclictest	3754802	-21	latency_hist	22:55:02	0
3639678	99	46	5,29	cyclictest	3727933	-21	ssh	22:20:26	1
3639678	99	46	40,4	cyclictest	3655660	-21	gltestperf	20:10:20	1
3639678	99	46	39,5	cyclictest	3831857	-21	kworker/u4:6+events_unbound	00:35:17	1
3639678	99	46	38,6	cyclictest	3657653	-21	systemd	20:17:00	1
3639678	99	46	38,5	cyclictest	3669364	-21	kworker/u4:3-rpciod	21:20:34	1
3639678	99	46	33,9	cyclictest	37	-21	kcompactd0	22:01:52	1
3639677	99	46	8,15	cyclictest	3738532	-21	ssh	22:34:19	0
3639677	99	46	6,21	cyclictest	3660989	-21	awk	20:30:23	0
3639677	99	46	38,6	cyclictest	3664134	-21	kworker/u4:5+events_unbound	21:15:58	0
3639677	99	46	27,17	cyclictest	0	-21	swapper/0	20:00:00	0
3639677	99	46	25,18	cyclictest	3639605	-21	kworker/u4:0-xprtiod	20:15:01	0
3639677	99	46	25,16	cyclictest	3664336	-21	apt-get	20:45:13	0
3639678	99	45	38,5	cyclictest	3768154	-21	grep	23:10:40	1
3639678	99	45	36,6	cyclictest	3763337	-21	fschecks_count	23:05:22	1
3639677	99	45	9,12	cyclictest	3747833	-21	ntpq	22:45:25	0
3639677	99	45	28,13	cyclictest	3834113	-21	ntpq	00:35:27	0
3639677	99	45	19,8	cyclictest	3653201	-21	irqstats	20:00:23	0
3639677	99	45	10,11	cyclictest	3642988	-21	ntpq	19:20:25	0
3639678	99	44	35,6	cyclictest	3653435	-21	proc_pri	20:00:36	1
3639677	99	44	7,12	cyclictest	3722579	-21	ssh	22:14:16	0
3639677	99	44	36,4	cyclictest	3665454	-21	apt-get	20:50:08	0
3639677	99	44	35,7	cyclictest	3650160	-21	aten2__	19:50:15	0
3639677	99	44	28,13	cyclictest	3663053	-21	apt-get	20:40:13	0
3639677	99	44	11,9	cyclictest	3644268	-21	ntpq	19:25:26	0
3639677	99	44	11,9	cyclictest	3644268	-21	ntpq	19:25:26	0
3639678	99	43	8,20	cyclictest	3671781	-21	ssh	21:10:35	1
3639678	99	43	35,5	cyclictest	3805145	-21	kworker/u4:9-rpciod	00:10:30	1
3639678	99	43	34,6	cyclictest	0	-21	swapper/1	21:40:32	1
3639678	99	43	34,6	cyclictest	0	-21	swapper/1	21:40:31	1
3639678	99	43	32,8	cyclictest	0	-21	swapper/1	20:25:17	1
3639677	99	43	7,14	cyclictest	3658526	-21	ntpq	20:20:29	0
3639677	99	43	28,10	cyclictest	3668294	-21	apt-get	21:00:14	0
3639677	99	43	24,14	cyclictest	3640523	-21	ps	19:10:38	0
3639678	99	42	33,6	cyclictest	3647713	-21	aten_r7power_vo	19:40:18	1
3639678	99	42	33,6	cyclictest	3647713	-21	aten_r7power_vo	19:40:17	1
3639678	99	42	33,6	cyclictest	0	-21	swapper/1	20:35:17	1
3639678	99	42	32,7	cyclictest	3831111	-21	unixbench_singl	00:30:42	1
3639677	99	42	26,12	cyclictest	3659181	-21	apt-get	20:25:15	0
3639677	99	42	26,11	cyclictest	3759311	-21	ssh	23:00:18	0
3639677	99	41	23,14	cyclictest	3669578	-21	apt-get	21:05:14	0
3639678	99	23	13,7	cyclictest	3639705	-21	latency_hist	19:10:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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