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 Jan 13, 2026 00:44:11)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
469290	99	96	90,4	cyclictest	574919	-21	kworker/u4:3+events_unbound	22:48:06	1
469289	99	89	82,5	cyclictest	458167	-21	kworker/u4:6+events_unbound	20:12:38	0
469289	99	89	81,6	cyclictest	493696	-21	kworker/u4:7+events_unbound	21:02:47	0
469289	99	78	49,23	cyclictest	54	-21	kswapd0	00:35:07	0
469289	99	75	68,5	cyclictest	588017	-21	kworker/u4:6+events_unbound	22:58:11	0
469290	99	69	61,6	cyclictest	596141	-21	kworker/u4:15+events_unbound	23:10:00	1
469290	99	68	58,7	cyclictest	672715	-21	kworker/u4:12+events_unbound	00:33:26	1
469289	99	67	60,5	cyclictest	487172	-21	kworker/u4:12+events_unbound	20:17:02	0
469289	99	67	56,7	cyclictest	54	-21	kswapd0	23:20:09	0
469289	99	67	56,7	cyclictest	54	-21	kswapd0	23:20:09	0
469289	99	67	46,11	cyclictest	498786	-21	diskmemload	23:35:11	0
469290	99	65	44,18	cyclictest	663249	-21	ps	00:20:36	1
469290	99	64	48,10	cyclictest	615263	-21	modprobe	23:25:00	1
469290	99	64	48,10	cyclictest	615263	-21	modprobe	23:25:00	1
469290	99	64	42,16	cyclictest	1068	-21	snmpd	22:10:32	1
469290	99	64	39,17	cyclictest	650251	-21	ssh	00:05:27	1
469290	99	63	54,6	cyclictest	473130	-21	kworker/u4:15+events_unbound	19:45:00	1
469290	99	62	38,21	cyclictest	546883	-21	ssh	22:05:14	1
469290	99	62	38,21	cyclictest	546883	-21	ssh	22:05:13	1
469290	99	61	54,5	cyclictest	540620	-21	kworker/u4:1+events_unbound	22:02:58	1
469290	99	60	43,12	cyclictest	499065	-21	apt-get	21:10:11	1
469290	99	60	40,15	cyclictest	556323	-21	ssh	22:15:34	1
469289	99	60	53,5	cyclictest	458163	-21	kworker/u4:2+events_unbound	19:35:59	0
469290	99	59	49,7	cyclictest	458163	-21	kworker/u4:2-rpciod	19:35:22	1
469290	99	59	43,11	cyclictest	484234	-21	ntpq	20:05:30	1
469290	99	59	39,12	cyclictest	641697	-21	ntpq	23:55:25	1
469289	99	59	52,5	cyclictest	466809	-21	kworker/u4:3+events_unbound	19:24:59	0
469290	99	58	49,6	cyclictest	527480	-21	kworker/u4:1+events_unbound	21:42:54	1
469290	99	58	49,5	cyclictest	469217	-21	kworker/u4:7+events_unbound	20:05:01	1
469290	99	58	46,9	cyclictest	0	-21	swapper/1	00:35:38	1
469290	99	58	44,10	cyclictest	489922	-21	apt-get	20:30:12	1
469290	99	58	40,11	cyclictest	620514	-21	gcc	23:30:26	1
469290	99	58	38,16	cyclictest	539128	-21	ssh	21:55:37	1
469289	99	58	27,20	cyclictest	255	50	irq/23-42890000.ethernet	19:15:08	0
469290	99	57	41,11	cyclictest	493268	-21	ntpq	20:45:26	1
469290	99	57	38,16	cyclictest	0	-21	swapper/1	22:35:12	1
469290	99	57	37,16	cyclictest	568674	-21	ssh	22:30:18	1
469290	99	57	20,12	cyclictest	638173	-21	ssh	23:50:49	1
469289	99	57	52,3	cyclictest	612878	-21	kworker/u4:10+events_unbound	23:33:16	0
469289	99	57	50,5	cyclictest	473129	-21	kworker/u4:13+events_unbound	20:29:02	0
469290	99	56	48,5	cyclictest	622151	-21	kworker/u4:1+events_unbound	23:40:00	1
469290	99	56	45,6	cyclictest	529694	-21	apt-get	21:45:17	1
469290	99	56	42,10	cyclictest	667382	-21	ssh	00:25:34	1
469290	99	56	41,11	cyclictest	534691	-21	ntpq	21:50:27	1
469290	99	56	41,10	cyclictest	516630	-21	apt-get	21:30:10	1
469290	99	56	40,10	cyclictest	577634	-21	ssh	22:40:23	1
469290	99	56	37,14	cyclictest	504177	-21	ntpq	21:15:25	1
469290	99	56	36,15	cyclictest	509206	-21	ssh	21:20:39	1
469290	99	56	22,13	cyclictest	585816	-21	grep	22:50:17	1
469290	99	56	21,10	cyclictest	603492	-21	ntpq	23:10:29	1
469290	99	56	19,13	cyclictest	648968	-21	ssh	00:04:33	1
469290	99	56	19,12	cyclictest	472762	-21	ps	19:20:32	1
469289	99	56	50,4	cyclictest	469216	-21	kworker/u4:4+events_unbound	20:09:59	0
469290	99	55	41,10	cyclictest	470018	-21	ntpq	19:10:32	1
469290	99	55	40,9	cyclictest	590636	-21	ssh	22:55:29	1
469290	99	55	35,15	cyclictest	485439	-21	ntpq	20:10:26	1
469290	99	55	34,11	cyclictest	594945	-21	ld	23:00:29	1
469290	99	55	34,11	cyclictest	594945	-21	ld	23:00:28	1
469290	99	55	24,8	cyclictest	617270	-21	ssh	23:26:18	1
469290	99	55	22,8	cyclictest	480159	-21	perl	19:50:20	1
469290	99	55	21,11	cyclictest	654911	-21	ssh	00:10:40	1
469290	99	55	21,11	cyclictest	522927	-21	ssh	21:36:36	1
469290	99	55	20,10	cyclictest	659690	-21	ssh	00:16:16	1
469290	99	55	20,10	cyclictest	562707	-21	ssh	22:23:13	1
469290	99	55	19,13	cyclictest	566876	-21	ssh	22:28:01	1
469289	99	55	47,6	cyclictest	670835	-21	grep	00:30:16	0
469289	99	55	39,10	cyclictest	0	-21	swapper/0	21:38:20	0
469290	99	54	36,13	cyclictest	628964	-21	ssh	23:40:23	1
469290	99	54	23,9	cyclictest	474369	-21	users	19:25:37	1
469290	99	54	21,10	cyclictest	632533	-21	ssh	23:45:11	1
469290	99	54	20,10	cyclictest	515037	-21	ssh	21:27:57	1
469290	99	54	19,13	cyclictest	608458	-21	ssh	23:15:53	1
469289	99	54	46,6	cyclictest	598746	-21	/usr/sbin/munin	23:05:18	0
469289	99	54	46,6	cyclictest	470494	-21	kworker/u4:8+events_unbound	19:14:59	0
469289	99	54	43,8	cyclictest	657818	-21	cat	00:15:01	0
469289	99	54	32,19	cyclictest	490163	-21	fschecks_count	20:30:19	0
469290	99	53	37,12	cyclictest	488098	-21	ps	20:20:34	1
469290	99	53	35,13	cyclictest	497084	-21	ntpq	21:00:32	1
469290	99	53	25,9	cyclictest	478557	-21	apt-get	19:45:11	1
469289	99	53	45,5	cyclictest	469287	-21	cyclictest	23:04:24	0
469289	99	53	45,5	cyclictest	469287	-21	cyclictest	23:04:23	0
469289	99	53	41,9	cyclictest	517155	-21	if_err_eth0	21:30:19	0
469289	99	53	40,4	cyclictest	669015	-21	kworker/u4:11+events_unbound	00:27:42	0
469290	99	52	43,6	cyclictest	488981	-21	fschecks_time	20:25:19	1
469290	99	52	35,13	cyclictest	498909	-21	ssh	21:10:02	1
469290	99	52	35,13	cyclictest	458166	-21	kworker/u4:5+xprtiod	19:15:06	1
469289	99	52	44,6	cyclictest	496213	-21	systemd	20:57:44	0
469289	99	52	32,17	cyclictest	0	-21	swapper/0	22:25:20	0
469290	99	51	37,11	cyclictest	494501	-21	ntpq	20:50:29	1
469289	99	51	46,3	cyclictest	536253	-21	kworker/u4:5+events_unbound	22:00:00	0
469289	99	51	44,5	cyclictest	572417	-21	idleruntime-cro	22:35:01	0
469289	99	51	37,6	cyclictest	476984	-21	kworker/u4:9+events_unbound	20:03:00	0
469289	99	51	35,13	cyclictest	54	-21	kswapd0	22:20:08	0
469290	99	50	31,16	cyclictest	475270	-21	ps	19:30:32	1
469290	99	50	30,15	cyclictest	491678	-21	cut	20:35:21	1
469289	99	50	43,5	cyclictest	556356	-21	/usr/sbin/munin	22:15:36	0
469289	99	50	43,5	cyclictest	465615	-21	kworker/u4:0+events_unbound	19:33:02	0
469289	99	50	28,17	cyclictest	0	-21	swapper/0	23:10:36	0
469290	99	49	19,8	cyclictest	481068	-21	apt-get	19:55:14	1
469289	99	49	42,5	cyclictest	583636	-21	kworker/u4:2+events_unbound	23:15:03	0
469289	99	49	41,5	cyclictest	629320	-21	sendmail_mailqu	23:40:37	0
469289	99	49	41,5	cyclictest	577787	-21	sh	22:40:30	0
469289	99	49	30,16	cyclictest	570573	-21	kworker/u4:6+rpciod	22:35:31	0
469289	99	48	41,5	cyclictest	525911	-21	grep	21:40:25	0
469289	99	48	41,5	cyclictest	499232	-21	aten_r7power_vo	21:10:15	0
469289	99	48	38,8	cyclictest	492742	-21	aten_r7power_po	20:45:12	0
469289	99	48	15,27	cyclictest	255	50	irq/23-42890000.ethernet	19:40:09	0
469290	99	47	36,8	cyclictest	495132	-21	/usr/sbin/munin	20:55:38	1
469290	99	47	32,9	cyclictest	1068	-21	snmpd	20:15:10	1
469289	99	47	40,5	cyclictest	504479	-21	mailstats	21:15:36	0
469289	99	47	38,7	cyclictest	487493	-21	aten_r7power_en	20:20:15	0
469289	99	46	40,4	cyclictest	0	-21	swapper/0	22:10:29	0
469289	99	46	39,5	cyclictest	581251	-21	acpi	22:45:10	0
469289	99	46	38,6	cyclictest	481308	-21	fschecks_count	19:55:19	0
469289	99	46	38,6	cyclictest	473129	-21	kworker/u4:13+events_unbound	19:51:44	0
469289	99	45	8,24	cyclictest	15	1	ktimers/0	23:50:38	0
469289	99	45	40,4	cyclictest	473129	-21	kworker/u4:13+events_unbound	20:43:00	0
469289	99	45	39,5	cyclictest	476983	-21	kworker/u4:8+events_unbound	19:47:43	0
469289	99	45	39,5	cyclictest	469287	-21	cyclictest	00:20:17	0
469289	99	45	39,5	cyclictest	458166	-21	kworker/u4:5+events_unbound	19:28:01	0
469289	99	45	38,5	cyclictest	534073	-21	basename	21:50:15	0
469289	99	45	38,5	cyclictest	493926	-21	grep	20:50:15	0
469289	99	45	38,5	cyclictest	487169	-21	kworker/u4:5+events_unbound	20:37:59	0
469289	99	45	37,6	cyclictest	508268	-21	fschecks_time	21:20:19	0
469289	99	45	36,7	cyclictest	649876	-21	fschecks_count	00:05:21	0
469289	99	45	36,7	cyclictest	497980	-21	fschecks_count	21:05:18	0
469289	99	44	6,5	cyclictest	15	1	ktimers/0	22:05:26	0
469289	99	44	6,5	cyclictest	15	1	ktimers/0	22:05:26	0
469289	99	44	37,5	cyclictest	512687	-21	fschecks_time	21:25:20	0
469289	99	44	36,6	cyclictest	632646	-21	aten_r7power_cu	23:45:18	0
469289	99	44	36,5	cyclictest	642110	-21	switchtime	23:55:39	0
469289	99	44	36,5	cyclictest	616767	-21	grep	23:25:40	0
469289	99	43	9,31	cyclictest	15	1	ktimers/0	00:15:37	0
469289	99	43	36,5	cyclictest	530234	-21	expr	21:45:26	0
469289	99	43	34,6	cyclictest	0	-21	swapper/0	22:00:21	0
469290	99	42	25,12	cyclictest	492579	-21	latency_hist	20:45:01	1
469289	99	42	35,5	cyclictest	498786	-21	diskmemload	22:50:21	0
469290	99	41	26,10	cyclictest	469371	-21	latency_hist	19:10:01	1
469290	99	41	26,10	cyclictest	469371	-21	latency_hist	19:10:01	1
469289	99	40	9,7	cyclictest	648014	-21	ssh	00:03:00	0
469289	99	28	19,7	cyclictest	0	-21	swapper/0	19:10:01	0
469289	99	28	19,7	cyclictest	0	-21	swapper/0	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