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 Sun Jan 18, 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
3189130	99	110	102,6	cyclictest	3292804	-21	kworker/u4:12+events_unbound	22:52:58	1
3189129	99	101	93,6	cyclictest	3361146	-21	kworker/u4:10+events_unbound	00:13:11	0
3189130	99	97	88,6	cyclictest	3258932	-21	kworker/u4:14+events_unbound	21:57:45	1
3189129	99	88	81,5	cyclictest	3238025	-21	kworker/u4:9+events_unbound	21:32:40	0
3189130	99	87	79,6	cyclictest	3284814	-21	kworker/u4:1+events_unbound	22:32:51	1
3189129	99	83	49,31	cyclictest	3307732	-21	latency_hist	22:55:02	0
3189129	99	73	3,23	cyclictest	3224001	-21	ssh	21:15:36	0
3189129	99	72	4,19	cyclictest	3245159	-21	ssh	21:40:34	0
3189129	99	69	62,5	cyclictest	3382136	-21	kworker/u4:14+events_unbound	00:23:11	0
3189129	99	68	60,6	cyclictest	3280517	-21	kworker/u4:4+events_unbound	22:22:48	0
3189129	99	68	38,28	cyclictest	3317399	-21	cat	23:05:38	0
3189129	99	68	3,21	cyclictest	3333407	-21	ssh	23:25:11	0
3189130	99	67	59,6	cyclictest	3218493	-21	kworker/u4:7+events_unbound	21:07:31	1
3189129	99	66	35,29	cyclictest	3195621	-21	aten2__	19:35:17	0
3189129	99	66	33,30	cyclictest	3328853	-21	ssh	23:20:00	0
3189129	99	66	33,30	cyclictest	0	-21	swapper/0	21:55:22	0
3189129	99	66	30,33	cyclictest	0	-21	swapper/0	23:55:32	0
3189130	99	65	56,6	cyclictest	3271857	-21	kworker/u4:10+events_unbound	22:20:01	1
3189129	99	65	27,34	cyclictest	3363769	-21	/usr/sbin/munin	00:00:26	0
3189129	99	65	2,16	cyclictest	3389461	-21	ssh	00:31:40	0
3189129	99	64	3,17	cyclictest	3198739	-21	ntpq	19:45:32	0
3189129	99	63	5,11	cyclictest	3290901	-21	apt-get	22:35:12	0
3189129	99	63	40,20	cyclictest	3333232	-21	latency_hist	23:25:01	0
3189129	99	63	35,25	cyclictest	3159342	-21	kworker/u4:8-rpciod	19:55:35	0
3189129	99	63	29,31	cyclictest	0	-21	swapper/0	20:10:34	0
3189129	99	63	28,31	cyclictest	0	-21	swapper/0	20:45:00	0
3189129	99	63	2,7	cyclictest	3312869	-21	ntpq	23:00:28	0
3189129	99	63	26,33	cyclictest	0	-21	swapper/0	21:20:17	0
3189130	99	62	50,8	cyclictest	0	-21	swapper/1	21:45:38	1
3189129	99	62	53,7	cyclictest	3250963	-21	kworker/u4:6+events_unbound	21:47:43	0
3189129	99	62	19,37	cyclictest	255	50	irq/23-42890000.ethernet	23:30:06	0
3189130	99	61	39,17	cyclictest	0	-21	swapper/1	23:55:29	1
3189130	99	61	11,45	cyclictest	3325695	-21	ssh	23:15:29	1
3189129	99	61	3,18	cyclictest	3351239	-21	ssh	23:45:34	0
3189129	99	61	29,29	cyclictest	3295355	-21	aten_r7power_en	22:40:22	0
3189129	99	61	27,32	cyclictest	0	-21	swapper/0	21:35:18	0
3189129	99	61	27,31	cyclictest	0	-21	swapper/0	20:15:16	0
3189129	99	61	25,33	cyclictest	0	-21	swapper/0	20:55:34	0
3189129	99	61	24,34	cyclictest	3232552	-21	mailstats	21:25:35	0
3189129	99	61	18,40	cyclictest	3220143	-21	/usr/sbin/munin	21:10:41	0
3189129	99	61	1,16	cyclictest	3385155	-21	ntpq	00:25:32	0
3189130	99	60	51,6	cyclictest	3267556	-21	kworker/u4:3+events_unbound	22:08:04	1
3189129	99	60	9,47	cyclictest	3286770	-21	aten_r7power_en	22:30:15	0
3189129	99	60	29,28	cyclictest	0	-21	swapper/0	22:45:19	0
3189129	99	60	28,29	cyclictest	0	-21	swapper/0	00:05:38	0
3189129	99	60	28,29	cyclictest	0	-21	swapper/0	00:05:38	0
3189129	99	60	27,30	cyclictest	0	-21	swapper/0	23:50:21	0
3189129	99	60	26,31	cyclictest	255	50	irq/23-42890000.ethernet	19:50:32	0
3189129	99	60	20,38	cyclictest	255	50	irq/23-42890000.ethernet	22:15:25	0
3189130	99	59	50,6	cyclictest	3316737	-21	fschecks_count	23:05:21	1
3189130	99	59	49,7	cyclictest	3311874	-21	sendmail	23:00:00	1
3189130	99	59	49,7	cyclictest	0	-21	swapper/1	23:30:38	1
3189129	99	59	5,15	cyclictest	3376547	-21	ntpq	00:15:30	0
3189129	99	59	36,21	cyclictest	3218673	-21	latency_hist	21:10:02	0
3189129	99	59	30,27	cyclictest	3320725	-21	aten_r7power_cu	23:10:16	0
3189129	99	59	27,30	cyclictest	3339657	-21	kworker/u4:6-rpciod	23:35:24	0
3189129	99	59	26,30	cyclictest	0	-21	swapper/0	20:30:36	0
3189129	99	59	2,14	cyclictest	3189872	-21	ntpq	19:10:28	0
3189129	99	59	2,13	cyclictest	3197426	-21	ntpq	19:40:27	0
3189129	99	59	2,13	cyclictest	3192476	-21	ntpq	19:20:32	0
3189129	99	59	1,12	cyclictest	3202002	-21	apt-get	20:00:18	0
3189130	99	58	47,8	cyclictest	3347126	-21	sh	23:40:35	1
3189130	99	58	47,8	cyclictest	0	-21	swapper/1	21:15:13	1
3189129	99	58	34,21	cyclictest	3348298	-21	ssh	23:42:03	0
3189129	99	58	3,13	cyclictest	3211461	-21	ntpq	20:35:28	0
3189129	99	58	3,13	cyclictest	3211461	-21	ntpq	20:35:28	0
3189129	99	58	31,25	cyclictest	3284814	-21	kworker/u4:1-rpciod	22:55:31	0
3189129	99	58	26,29	cyclictest	0	-21	swapper/0	22:05:10	0
3189129	99	58	24,32	cyclictest	0	-21	swapper/0	20:45:22	0
3189129	99	58	2,14	cyclictest	3261922	-21	ntpq	22:00:26	0
3189129	99	58	14,7	cyclictest	3215627	-21	grep	20:50:35	0
3189130	99	57	50,5	cyclictest	3361142	-21	kworker/u4:1+events_unbound	00:04:44	1
3189130	99	57	45,8	cyclictest	0	-21	swapper/1	21:30:11	1
3189129	99	57	24,31	cyclictest	3204354	-21	munin-plugin-st	20:10:00	0
3189129	99	57	2,15	cyclictest	3253535	-21	ntpq	21:50:30	0
3189129	99	57	2,14	cyclictest	3191172	-21	ntp_states	19:15:31	0
3189129	99	57	2,14	cyclictest	3191172	-21	ntp_states	19:15:31	0
3189129	99	57	2,13	cyclictest	3208901	-21	ntpq	20:25:29	0
3189129	99	57	19,34	cyclictest	0	-21	swapper/0	22:25:16	0
3189129	99	57	1,3	cyclictest	3195020	-21	/usr/sbin/munin	19:31:03	0
3189130	99	56	48,6	cyclictest	3270528	-21	ntp_states	22:10:33	1
3189130	99	56	48,5	cyclictest	3299396	-21	dpkg	22:45:10	1
3189129	99	56	25,29	cyclictest	3207195	-21	aten_r7power_vo	20:20:17	0
3189130	99	54	46,6	cyclictest	3365463	-21	kworker/u4:12+events_unbound	00:18:59	1
3189130	99	54	46,6	cyclictest	3192890	-21	kworker/u4:0+events_unbound	20:42:25	1
3189130	99	54	46,6	cyclictest	3190333	-21	kworker/u4:6+events_unbound	20:32:24	1
3189130	99	54	45,6	cyclictest	3351435	-21	threads	23:45:37	1
3189130	99	54	45,6	cyclictest	3282598	-21	/usr/sbin/munin	22:25:17	1
3189130	99	54	45,6	cyclictest	3201696	-21	systemd	19:57:15	1
3189129	99	54	2,18	cyclictest	3270538	-21	ntpq	22:10:33	0
3189129	99	54	1,5	cyclictest	3193714	-21	ntpq	19:25:30	0
3189130	99	53	44,6	cyclictest	3375496	-21	idleruntime-cro	00:15:00	1
3189130	99	53	43,7	cyclictest	0	-21	swapper/1	22:20:11	1
3189130	99	53	33,14	cyclictest	0	-21	swapper/1	22:00:32	1
3189130	99	52	37,11	cyclictest	37	-21	kcompactd0	21:51:40	1
3189130	99	52	36,10	cyclictest	3214993	-21	grep	20:50:18	1
3189130	99	52	25,14	cyclictest	3217265	-21	modprobe	21:05:00	1
3189130	99	51	39,9	cyclictest	3313372	-21	unixbench_multi	23:00:40	1
3189130	99	50	41,6	cyclictest	3345838	-21	cron	23:40:01	1
3189130	99	50	34,12	cyclictest	0	-21	swapper/1	21:26:40	1
3189129	99	50	16,32	cyclictest	0	-21	swapper/0	21:05:01	0
3189129	99	50	14,5	cyclictest	3392057	-21	sh	00:35:41	0
3189130	99	49	41,5	cyclictest	3380970	-21	ldconfig	00:20:39	1
3189130	99	49	40,6	cyclictest	3190333	-21	kworker/u4:6+events_unbound	19:42:13	1
3189130	99	49	39,8	cyclictest	3208601	-21	fschecks_count	20:25:20	1
3189130	99	49	38,8	cyclictest	3333527	-21	aten_r7power_po	23:25:14	1
3189130	99	49	37,8	cyclictest	3207346	-21	fschecks_count	20:20:20	1
3189130	99	48	40,6	cyclictest	3391508	-21	munin-plugin-st	00:35:00	1
3189130	99	48	38,7	cyclictest	3330490	-21	/usr/sbin/munin	23:20:40	1
3189130	99	48	38,7	cyclictest	3203039	-21	unixbench_singl	20:00:43	1
3189130	99	48	37,8	cyclictest	3219142	-21	fschecks_count	21:10:20	1
3189130	99	48	35,8	cyclictest	0	-21	swapper/1	00:05:15	1
3189130	99	48	35,8	cyclictest	0	-21	swapper/1	00:05:15	1
3189130	99	47	40,5	cyclictest	3245591	-21	who	21:40:39	1
3189130	99	47	40,5	cyclictest	3229431	-21	kworker/u4:13+events_unbound	21:22:35	1
3189130	99	47	38,6	cyclictest	3194056	-21	tail	19:25:36	1
3189130	99	47	37,7	cyclictest	3296000	-21	ntp_kernel_pll_	22:40:35	1
3189130	99	46	39,5	cyclictest	3385000	-21	ntp_kernel_pll_	00:25:24	1
3189130	99	46	39,5	cyclictest	3240522	-21	gltestperf	21:35:20	1
3189130	99	46	36,7	cyclictest	3290979	-21	aten_r7power_cu	22:35:16	1
3189130	99	45	34,9	cyclictest	3320882	-21	df_abs	23:10:17	1
3189130	99	45	31,10	cyclictest	3210914	-21	basename	20:35:18	1
3189130	99	45	31,10	cyclictest	3210914	-21	basename	20:35:18	1
3189130	99	44	35,6	cyclictest	3195785	-21	sed	19:35:18	1
3189130	99	44	34,7	cyclictest	3205904	-21	aten_r7power_vo	20:15:16	1
3189130	99	44	33,8	cyclictest	0	-21	swapper/1	23:50:36	1
3189129	99	44	12,4	cyclictest	247	50	irq/20-imx-lcdifv3-crtc.0	19:10:01	0
3189130	99	43	32,9	cyclictest	3191657	-21	sendmail	19:20:00	1
3189130	99	43	32,9	cyclictest	3191657	-21	sendmail	19:20:00	1
3189130	99	43	31,9	cyclictest	0	-21	swapper/1	20:10:35	1
3189130	99	41	29,8	cyclictest	0	-21	swapper/1	20:05:19	1
3189130	99	41	27,10	cyclictest	3190498	-21	ls	19:15:01	1
3189130	99	40	32,6	cyclictest	0	-21	swapper/1	19:30:59	1
3189130	99	40	30,7	cyclictest	3394820	-21	latency_hist	00:40:01	1
3189130	99	40	27,9	cyclictest	0	-21	swapper/1	20:55:20	1
3189130	99	39	31,5	cyclictest	3187870	-21	kworker/u4:0-xprtiod	19:10:01	1
3189130	99	39	28,8	cyclictest	0	-21	swapper/1	19:50:34	1
3189130	99	39	27,9	cyclictest	0	-21	swapper/1	20:45:22	1
3189130	99	38	28,6	cyclictest	0	-21	swapper/1	19:45:27	1
3189130	99	37	31,4	cyclictest	3192555	-21	sendmail_mailqu	19:20:34	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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