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 Jun 08, 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
702666	99	108	100,6	cyclictest	883656	-21	kworker/u4:15+events_unbound	00:03:17	0
702666	99	98	94,3	cyclictest	892304	-21	kworker/u4:1+events_unbound	00:23:46	0
702666	99	98	90,5	cyclictest	866405	-21	kworker/u4:6+events_unbound	23:52:58	0
702666	99	97	89,6	cyclictest	762929	-21	kworker/u4:9+events_unbound	21:52:08	0
702666	99	94	86,6	cyclictest	729976	-21	kworker/u4:7+events_unbound	20:52:03	0
702666	99	94	86,6	cyclictest	729976	-21	kworker/u4:7+events_unbound	20:52:02	0
702666	99	90	72,7	cyclictest	711754	-21	kworker/u4:11+events_unbound	20:15:01	0
702666	99	87	79,6	cyclictest	862045	-21	kworker/u4:0+events_unbound	23:37:19	0
702666	99	86	79,5	cyclictest	713023	-21	kworker/u4:12+events_unbound	21:12:03	0
702666	99	86	78,6	cyclictest	896636	-21	kworker/u4:0+events_unbound	00:18:43	0
702666	99	86	78,6	cyclictest	690299	-21	kworker/u4:15+events_unbound	19:16:48	0
702666	99	84	77,5	cyclictest	689027	-21	kworker/u4:5+events_unbound	19:21:48	0
702666	99	81	64,6	cyclictest	732546	-21	kworker/u4:16+events_unbound	21:02:04	0
702666	99	80	66,5	cyclictest	711752	-21	kworker/u4:9+events_unbound	19:46:51	0
702666	99	77	70,5	cyclictest	715568	-21	kworker/u4:6+events_unbound	20:06:55	0
702666	99	77	70,5	cyclictest	715568	-21	kworker/u4:6+events_unbound	20:06:55	0
702666	99	77	70,5	cyclictest	689027	-21	kworker/u4:5+events_unbound	19:36:50	0
702666	99	77	69,6	cyclictest	723422	-21	kworker/u4:13+events_unbound	20:26:58	0
702666	99	77	67,8	cyclictest	836324	-21	kworker/u4:7+events_unbound	23:22:17	0
702666	99	72	65,5	cyclictest	784464	-21	kworker/u4:3+events_unbound	22:07:09	0
702667	99	71	34,12	cyclictest	802869	-21	ssh	22:28:51	1
702667	99	71	32,10	cyclictest	809658	-21	ssh	22:35:56	1
702667	99	70	61,7	cyclictest	827554	-21	kworker/u4:3+events_unbound	23:05:00	1
702667	99	70	29,13	cyclictest	0	-21	swapper/1	00:10:37	1
702667	99	69	29,15	cyclictest	819076	-21	ssh	22:47:13	1
702667	99	69	28,15	cyclictest	880559	-21	ssh	23:59:15	1
702666	99	69	62,5	cyclictest	810014	-21	kworker/u4:5+events_unbound	22:47:13	0
702667	99	68	32,13	cyclictest	740689	-21	ssh	21:16:59	1
702667	99	68	31,13	cyclictest	894850	-21	ntpq	00:15:30	1
702667	99	68	28,14	cyclictest	776811	-21	ssh	21:58:36	1
702667	99	68	28,13	cyclictest	834067	-21	ssh	23:05:12	1
702667	99	68	27,15	cyclictest	797233	-21	ssh	22:21:40	1
702666	99	68	61,5	cyclictest	728703	-21	kworker/u4:1+events_unbound	20:57:01	0
702667	99	67	27,16	cyclictest	899147	-21	ntpq	00:20:31	1
702667	99	67	26,15	cyclictest	866215	-21	ssh	23:41:38	1
702667	99	67	25,14	cyclictest	863200	-21	ssh	23:38:43	1
702666	99	67	59,6	cyclictest	866404	-21	kworker/u4:5+events_unbound	00:05:02	0
702667	99	66	50,12	cyclictest	53	-21	kswapd0	22:35:01	1
702667	99	66	28,13	cyclictest	814965	-21	ssh	22:42:33	1
702667	99	66	28,12	cyclictest	821911	-21	ntpq	22:50:37	1
702667	99	66	28,12	cyclictest	704175	-21	apt-get	19:15:20	1
702667	99	66	27,11	cyclictest	760472	-21	ssh	21:40:12	1
702667	99	66	26,15	cyclictest	872761	-21	ssh	23:50:05	1
702667	99	66	26,15	cyclictest	783667	-21	ssh	22:05:41	1
702667	99	66	26,14	cyclictest	736683	-21	ssh	21:12:33	1
702667	99	66	25,15	cyclictest	794812	-21	ssh	22:19:46	1
702667	99	66	25,15	cyclictest	794812	-21	ssh	22:19:46	1
702666	99	66	59,6	cyclictest	716865	-21	kworker/u4:8+events_unbound	20:21:57	0
702666	99	66	59,5	cyclictest	879349	-21	kworker/u4:12+events_unbound	00:13:39	0
702666	99	66	59,5	cyclictest	720762	-21	kworker/u4:15+events_unbound	20:16:57	0
702666	99	66	56,8	cyclictest	905274	-21	systemd	00:27:54	0
702667	99	65	30,11	cyclictest	757978	-21	ssh	21:36:33	1
702667	99	65	30,10	cyclictest	744845	-21	ssh	21:21:36	1
702667	99	65	29,11	cyclictest	845217	-21	ssh	23:17:34	1
702667	99	65	29,10	cyclictest	849682	-21	ssh	23:22:46	1
702667	99	65	27,15	cyclictest	781437	-21	ssh	22:04:04	1
702667	99	65	27,14	cyclictest	905434	-21	ssh	00:28:10	1
702667	99	65	27,11	cyclictest	910288	-21	ssh	00:34:09	1
702667	99	65	27,11	cyclictest	854050	-21	ssh	23:27:50	1
702667	99	65	26,16	cyclictest	841892	-21	ssh	23:14:12	1
702667	99	65	26,15	cyclictest	870811	-21	ssh	23:47:09	1
702667	99	65	26,15	cyclictest	870811	-21	ssh	23:47:09	1
702667	99	65	25,16	cyclictest	749239	-21	ssh	21:26:36	1
702667	99	65	25,15	cyclictest	789804	-21	ssh	22:13:38	1
702667	99	65	25,15	cyclictest	789804	-21	ssh	22:13:38	1
702667	99	65	25,14	cyclictest	883522	-21	ssh	00:02:05	1
702667	99	65	24,15	cyclictest	711325	-21	ntpq	19:40:32	1
702667	99	64	27,13	cyclictest	886272	-21	ntpq	00:05:27	1
702667	99	64	27,11	cyclictest	754723	-21	ssh	21:33:19	1
702667	99	64	27,10	cyclictest	857624	-21	ssh	23:31:40	1
702667	99	64	26,12	cyclictest	828580	-21	ssh	22:58:40	1
702667	99	64	26,10	cyclictest	771664	-21	ssh	21:52:19	1
702667	99	64	24,14	cyclictest	766456	-21	ssh	21:46:03	1
702666	99	64	51,9	cyclictest	821466	-21	fschecks_count	22:50:26	0
702666	99	64	46,6	cyclictest	908974	-21	kworker/u4:6+events_unbound	00:34:00	0
702667	99	63	26,13	cyclictest	914309	-21	ssh	00:38:46	1
702667	99	62	23,11	cyclictest	722354	-21	apt-get	20:25:14	1
702667	99	60	22,15	cyclictest	706041	-21	ntpq	19:20:28	1
702666	99	59	51,6	cyclictest	806352	-21	kworker/u4:0+events_unbound	22:34:59	0
702666	99	59	50,5	cyclictest	256	50	irq/23-42890000.ethernet	22:20:38	0
702667	99	58	27,8	cyclictest	725616	-21	ntpq	20:35:36	1
702667	99	58	25,10	cyclictest	708717	-21	ntpq	19:30:28	1
702667	99	58	23,9	cyclictest	1073	-21	snmpd	20:50:11	1
702667	99	58	23,9	cyclictest	1073	-21	snmpd	20:50:11	1
702667	99	58	23,13	cyclictest	702821	-21	apt-get	19:10:11	1
702667	99	58	22,14	cyclictest	716399	-21	ntpq	20:00:31	1
702666	99	58	42,7	cyclictest	713023	-21	kworker/u4:12+events_unbound	21:33:00	0
702667	99	57	25,10	cyclictest	720162	-21	irqstats	20:15:21	1
702667	99	57	24,9	cyclictest	730840	-21	ntpq	20:55:37	1
702667	99	57	23,12	cyclictest	709366	-21	/usr/sbin/munin	19:35:36	1
702667	99	57	22,12	cyclictest	732729	-21	/usr/sbin/munin	21:05:36	1
702666	99	57	50,5	cyclictest	835135	-21	mailstats	23:05:42	0
702667	99	56	23,8	cyclictest	706595	-21	apt-get	19:25:05	1
702667	99	56	21,13	cyclictest	723625	-21	dpkg	20:30:12	1
702666	99	56	49,5	cyclictest	829814	-21	aten_r7power_cu	23:00:16	0
702666	99	56	41,5	cyclictest	870722	-21	kworker/u4:0+events_unbound	23:47:56	0
702666	99	56	41,5	cyclictest	870722	-21	kworker/u4:0+events_unbound	23:47:56	0
702666	99	55	47,6	cyclictest	878255	-21	/usr/sbin/munin	23:55:42	0
702666	99	55	42,6	cyclictest	788849	-21	kworker/u4:6+events_unbound	22:15:01	0
702666	99	55	42,6	cyclictest	788849	-21	kworker/u4:6+events_unbound	22:15:01	0
702666	99	55	41,9	cyclictest	791792	-21	collect2	22:15:34	0
702666	99	55	41,9	cyclictest	791792	-21	collect2	22:15:34	0
702667	99	54	36,14	cyclictest	715098	-21	ntpq	19:55:28	1
702667	99	54	21,8	cyclictest	731696	-21	df_inode	21:00:18	1
702667	99	54	21,10	cyclictest	1073	-21	snmpd	20:41:26	1
702667	99	54	19,13	cyclictest	728270	-21	ntp_states	20:45:30	1
702666	99	54	48,4	cyclictest	774393	-21	ld	21:55:30	0
702666	99	54	47,5	cyclictest	840733	-21	kworker/u4:0+events_unbound	23:25:02	0
702666	99	54	46,6	cyclictest	801966	-21	kworker/u4:19+events_unbound	22:40:59	0
702666	99	54	46,6	cyclictest	760770	-21	df	21:40:18	0
702666	99	54	44,6	cyclictest	838574	-21	/usr/sbin/munin	23:10:18	0
702666	99	54	43,5	cyclictest	831941	-21	kworker/u4:6+events_unbound	23:30:03	0
702667	99	53	21,10	cyclictest	712463	-21	memory	19:45:21	1
702666	99	53	46,5	cyclictest	713023	-21	kworker/u4:12+events_unbound	21:05:02	0
702666	99	53	38,6	cyclictest	900335	-21	kworker/u4:3+events_unbound	00:36:07	0
702667	99	52	21,9	cyclictest	718648	-21	diskstats	20:10:22	1
702666	99	52	45,5	cyclictest	732544	-21	kworker/u4:11+events_unbound	21:20:04	0
702666	99	52	44,6	cyclictest	732544	-21	kworker/u4:11+events_unbound	21:19:46	0
702666	99	52	41,7	cyclictest	806352	-21	kworker/u4:0-rpciod	22:35:34	0
702667	99	51	18,9	cyclictest	717654	-21	ntpq	20:05:28	1
702667	99	51	18,9	cyclictest	717654	-21	ntpq	20:05:28	1
702666	99	51	39,5	cyclictest	753997	-21	kworker/u4:2+events_unbound	22:01:45	0
702667	99	50	35,12	cyclictest	713771	-21	ntpq	19:50:23	1
702667	99	50	34,14	cyclictest	721082	-21	apt-get	20:20:19	1
702666	99	50	43,5	cyclictest	726086	-21	cron	20:40:01	0
702666	99	48	30,10	cyclictest	0	-21	swapper/0	23:40:21	0
702666	99	48	28,17	cyclictest	0	-21	swapper/0	22:25:38	0
702666	99	47	40,5	cyclictest	711753	-21	kworker/u4:10-nfsiod	19:45:00	0
702666	99	47	30,15	cyclictest	843923	-21	grep	23:15:39	0
702666	99	46	39,5	cyclictest	713023	-21	kworker/u4:12+events_unbound	21:37:07	0
702666	99	46	39,5	cyclictest	703107	-21	fschecks_count	19:10:18	0
702666	99	46	38,5	cyclictest	747736	-21	gltestperf	21:25:20	0
702666	99	45	23,20	cyclictest	829427	-21	cron	23:00:00	0
702667	99	44	29,12	cyclictest	702668	-21	latency_hist	19:10:00	1
702666	99	43	33,8	cyclictest	765124	-21	df_abs	21:45:17	0
702666	99	42	35,5	cyclictest	724729	-21	munin-plugin-st	20:35:00	0
702666	99	42	34,6	cyclictest	728706	-21	kworker/u4:5+events_unbound	20:50:00	0
702666	99	42	34,6	cyclictest	706933	-21	aten_r7power_po	19:25:20	0
702666	99	42	20,18	cyclictest	723422	-21	kworker/u4:13-rpciod	20:40:46	0
702666	99	41	31,8	cyclictest	1060	-21	sshd	19:50:37	0
702666	99	40	33,4	cyclictest	0	-21	swapper/0	19:55:37	0
702666	99	39	33,5	cyclictest	703890	-21	kworker/u4:4+events_unbound	20:02:01	0
702666	99	38	31,5	cyclictest	709222	-21	idleruntime-cro	19:35:00	0
702666	99	25	2,12	cyclictest	461859	-21	kworker/0:0+mm_percpu_wq	19:10:00	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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