OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #7, slot #2

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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 376 highest latencies:

System rack7slot2.osadl.org (updated Sat May 02, 2026 12:44:12)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
699649	99	79	71,6	cyclictest	727879	-21	kworker/u4:4+events_unbound	09:15:32	0
699649	99	78	49,20	cyclictest	53	-21	kswapd0	12:20:09	0
699650	99	76	43,31	cyclictest	823213	-21	fschecks_count	10:55:18	1
699649	99	75	68,5	cyclictest	904091	-21	kworker/u4:0+events_unbound	12:30:00	0
699650	99	74	64,8	cyclictest	705996	-21	kworker/u4:8+events_unbound	08:40:19	1
699650	99	74	64,8	cyclictest	705996	-21	kworker/u4:8+events_unbound	08:40:18	1
699650	99	74	63,8	cyclictest	53	-21	kswapd0	09:35:34	1
699649	99	74	65,7	cyclictest	785856	-21	kworker/u4:5+events_unbound	10:39:59	0
699649	99	74	63,7	cyclictest	716297	-21	kworker/u4:12+events_unbound	08:35:19	0
699650	99	73	62,8	cyclictest	727877	-21	kworker/u4:2+events_unbound	09:05:30	1
699650	99	73	35,7	cyclictest	801511	-21	gltestperf	10:30:25	1
699650	99	73	35,7	cyclictest	801511	-21	gltestperf	10:30:25	1
699649	99	73	1,51	cyclictest	705672	-21	awk	07:30:37	0
699649	99	73	1,51	cyclictest	705672	-21	awk	07:30:37	0
699649	99	72	4,51	cyclictest	783741	-21	ssh	10:10:20	0
699649	99	71	21,29	cyclictest	256	50	irq/23-42890000.ethernet	10:30:43	0
699649	99	71	21,29	cyclictest	256	50	irq/23-42890000.ethernet	10:30:43	0
699650	99	70	38,5	cyclictest	858518	-21	diskmemload	11:35:20	1
699650	99	69	33,5	cyclictest	741808	-21	kworker/u4:15-rpciod	09:25:27	1
699649	99	69	23,43	cyclictest	0	-21	swapper/0	11:10:31	0
699649	99	69	23,28	cyclictest	0	-21	swapper/0	12:00:29	0
699649	99	69	1,43	cyclictest	810566	-21	ntp_states	10:40:30	0
699649	99	67	3,41	cyclictest	864675	-21	kworker/u4:0-rpciod	11:45:23	0
699649	99	67	25,39	cyclictest	0	-21	swapper/0	08:55:00	0
699649	99	67	2,46	cyclictest	889427	-21	ntpq	12:10:25	0
699649	99	67	21,25	cyclictest	740413	-21	ssh	09:20:30	0
699649	99	67	19,31	cyclictest	707774	-21	df_abs	07:40:18	0
699650	99	66	57,6	cyclictest	904092	-21	kworker/u4:2+events_unbound	12:30:59	1
699650	99	66	54,8	cyclictest	53	-21	kswapd0	12:15:19	1
699649	99	66	42,20	cyclictest	730606	-21	latency_hist	09:10:01	0
699649	99	66	19,29	cyclictest	0	-21	swapper/0	09:35:21	0
699649	99	66	16,31	cyclictest	0	-21	swapper/0	10:45:25	0
699649	99	66	16,31	cyclictest	0	-21	swapper/0	10:45:25	0
699649	99	66	16,27	cyclictest	718369	-21	ntpq	08:20:26	0
699649	99	66	1,45	cyclictest	770573	-21	sh	09:55:02	0
699649	99	65	34,28	cyclictest	0	-21	swapper/0	09:40:31	0
699649	99	65	33,29	cyclictest	796786	-21	aten_r7power_en	10:25:17	0
699649	99	65	2,45	cyclictest	704163	-21	memory	07:25:21	0
699649	99	65	2,38	cyclictest	730487	-21	diskmemload	11:56:40	0
699649	99	65	16,30	cyclictest	0	-21	swapper/0	11:23:54	0
699649	99	65	1,59	cyclictest	893976	-21	ntpq	12:15:33	0
699649	99	64	4,40	cyclictest	855832	-21	ssh	11:31:54	0
699649	99	63	40,20	cyclictest	731293	-21	gltestperf	09:10:23	0
699649	99	63	20,41	cyclictest	256	50	irq/23-42890000.ethernet	12:35:29	0
699649	99	63	1,57	cyclictest	719762	-21	ntpq	08:25:31	0
699649	99	63	1,54	cyclictest	699800	-21	apt-get	07:10:12	0
699649	99	62	55,5	cyclictest	687242	-21	kworker/u4:11+events_unbound	07:20:01	0
699649	99	62	2,40	cyclictest	819371	-21	ntpq	10:50:38	0
699649	99	62	2,35	cyclictest	871253	-21	apt-get	11:50:15	0
699649	99	62	1,38	cyclictest	744054	-21	/usr/sbin/munin	09:25:22	0
699650	99	61	46,9	cyclictest	0	-21	swapper/1	08:55:24	1
699649	99	61	26,32	cyclictest	832259	-21	fschecks_time	11:05:24	0
699649	99	61	2,56	cyclictest	711615	-21	diskstats	07:55:17	0
699649	99	61	2,56	cyclictest	711615	-21	diskstats	07:55:17	0
699649	99	61	2,38	cyclictest	792898	-21	irqstats	10:20:21	0
699649	99	61	1,42	cyclictest	771397	-21	ntpq	09:55:33	0
699649	99	61	1,39	cyclictest	775135	-21	ssh	10:00:18	0
699649	99	61	1,39	cyclictest	727366	-21	/usr/sbin/munin	08:55:25	0
699649	99	60	27,31	cyclictest	256	50	irq/23-42890000.ethernet	11:25:15	0
699649	99	60	27,30	cyclictest	841037	-21	gltestperf	11:15:20	0
699649	99	60	2,54	cyclictest	710121	-21	apt-get	07:50:12	0
699649	99	60	2,52	cyclictest	788675	-21	ntpq	10:15:25	0
699649	99	60	1,35	cyclictest	706032	-21	apt-get	07:35:01	0
699649	99	60	11,29	cyclictest	0	-21	swapper/0	11:35:13	0
699649	99	59	2,53	cyclictest	715825	-21	ntpq	08:10:29	0
699649	99	59	2,53	cyclictest	715825	-21	ntpq	08:10:29	0
699649	99	59	23,28	cyclictest	0	-21	swapper/0	08:05:27	0
699649	99	59	1,54	cyclictest	728107	-21	apt-get	09:00:12	0
699650	99	58	44,9	cyclictest	740411	-21	ntpq	09:20:30	1
699649	99	58	3,50	cyclictest	709461	-21	ntpq	07:45:31	0
699649	99	58	28,28	cyclictest	0	-21	swapper/0	08:40:19	0
699649	99	58	28,28	cyclictest	0	-21	swapper/0	08:40:18	0
699649	99	58	27,29	cyclictest	827936	-21	if_eth0	11:00:21	0
699649	99	58	2,50	cyclictest	716493	-21	apt-get	08:15:11	0
699649	99	58	2,50	cyclictest	716493	-21	apt-get	08:15:10	0
699649	99	58	24,30	cyclictest	780266	-21	gcc	10:05:39	0
699649	99	58	11,27	cyclictest	0	-21	swapper/0	07:25:01	0
699650	99	57	46,8	cyclictest	53	-21	kswapd0	12:20:08	1
699649	99	57	30,24	cyclictest	0	-21	swapper/0	08:30:38	0
699649	99	57	28,26	cyclictest	0	-21	swapper/0	09:45:22	0
699649	99	57	25,28	cyclictest	0	-21	swapper/0	11:40:38	0
699649	99	57	25,28	cyclictest	0	-21	swapper/0	09:30:38	0
699649	99	57	2,50	cyclictest	713342	-21	ntpq	08:00:35	0
699649	99	57	23,30	cyclictest	0	-21	swapper/0	10:55:02	0
699649	99	57	1,51	cyclictest	724821	-21	ntpq	08:45:24	0
699650	99	56	43,9	cyclictest	796404	-21	modprobe	10:25:01	1
699650	99	56	40,9	cyclictest	0	-21	swapper/1	09:15:29	1
699649	99	56	2,48	cyclictest	885219	-21	ssh	12:05:35	0
699650	99	55	40,9	cyclictest	0	-21	swapper/1	10:10:29	1
699649	99	55	15,36	cyclictest	256	50	irq/23-42890000.ethernet	12:30:12	0
699650	99	54	46,5	cyclictest	881046	-21	/usr/sbin/munin	12:00:43	1
699650	99	54	45,6	cyclictest	746307	-21	kworker/u4:4-rpciod	10:15:40	1
699650	99	54	44,7	cyclictest	767009	-21	sh	09:50:27	1
699650	99	54	41,11	cyclictest	0	-21	swapper/1	11:10:36	1
699650	99	51	44,5	cyclictest	854670	-21	wc	11:30:38	1
699650	99	51	43,6	cyclictest	802874	-21	kworker/u4:13+events_unbound	10:35:43	1
699650	99	51	43,6	cyclictest	796846	-21	aten_r7power_vo	10:25:17	1
699650	99	51	37,10	cyclictest	0	-21	swapper/1	12:10:12	1
699650	99	50	41,7	cyclictest	729204	-21	cron	09:05:00	1
699650	99	50	39,6	cyclictest	0	-21	swapper/1	11:05:42	1
699650	99	50	38,9	cyclictest	904094	-21	kworker/u4:5-rpciod	12:30:00	1
699650	99	50	38,8	cyclictest	910779	-21	/usr/sbin/munin	12:35:18	1
699650	99	49	41,5	cyclictest	819720	-21	unixbench-2d	10:50:44	1
699650	99	49	40,7	cyclictest	707440	-21	latency_hist	07:40:01	1
699650	99	49	40,5	cyclictest	762024	-21	aten2__	09:45:20	1
699650	99	48	39,7	cyclictest	746307	-21	kworker/u4:4+events_unbound	10:00:39	1
699650	99	48	39,5	cyclictest	703512	-21	grep	07:25:02	1
699649	99	48	9,31	cyclictest	699646	-21	awk	07:10:01	0
699650	99	47	40,5	cyclictest	779711	-21	fschecks_count	10:05:23	1
699650	99	47	39,6	cyclictest	770803	-21	aten_r7power_cu	09:55:23	1
699650	99	47	37,8	cyclictest	802874	-21	kworker/u4:13-rpciod	10:45:18	1
699650	99	47	37,8	cyclictest	802874	-21	kworker/u4:13-rpciod	10:45:18	1
699650	99	47	37,7	cyclictest	871587	-21	/usr/sbin/munin	11:50:19	1
699650	99	47	32,12	cyclictest	0	-21	swapper/1	07:45:26	1
699650	99	46	39,5	cyclictest	888504	-21	latency_hist	12:10:01	1
699650	99	46	35,8	cyclictest	0	-21	swapper/1	11:15:31	1
699650	99	46	33,9	cyclictest	749551	-21	find	09:30:40	1
699650	99	46	32,10	cyclictest	717374	-21	sort	08:15:37	1
699650	99	46	32,10	cyclictest	717374	-21	sort	08:15:36	1
699650	99	45	38,5	cyclictest	845259	-21	df	11:20:18	1
699650	99	45	38,5	cyclictest	828701	-21	unixbench_singl	11:00:40	1
699650	99	45	33,9	cyclictest	718785	-21	unixbench_multi	08:20:38	1
699650	99	45	33,9	cyclictest	711189	-21	kworker/u4:15+events_unbound	08:50:24	1
699650	99	45	31,10	cyclictest	876447	-21	ssh	11:55:31	1
699650	99	44	37,5	cyclictest	849468	-21	aten_r7power_en	11:25:17	1
699650	99	44	37,5	cyclictest	731296	-21	gltestperf	09:10:22	1
699650	99	44	35,6	cyclictest	700882	-21	systemd	07:14:56	1
699650	99	44	29,10	cyclictest	0	-21	swapper/1	08:50:00	1
699650	99	43	36,5	cyclictest	702200	-21	idleruntime-cro	07:20:00	1
699650	99	43	36,4	cyclictest	702154	-21	kworker/u4:9-rpciod	08:00:01	1
699650	99	43	36,4	cyclictest	702154	-21	kworker/u4:9-rpciod	08:00:01	1
699650	99	43	36,4	cyclictest	0	-21	swapper/1	11:40:18	1
699650	99	43	35,6	cyclictest	699648	-21	cyclictest	07:30:00	1
699650	99	43	34,7	cyclictest	867315	-21	gltestperf	11:45:20	1
699650	99	43	34,7	cyclictest	712796	-21	aten_r7power_po	08:00:16	1
699650	99	42	36,4	cyclictest	757716	-21	df	09:40:16	1
699650	99	42	33,7	cyclictest	809893	-21	aten_r7power_vo	10:40:15	1
699650	99	42	32,8	cyclictest	720456	-21	aten2__	08:30:14	1
699650	99	41	30,8	cyclictest	0	-21	swapper/1	08:10:17	1
699650	99	41	30,8	cyclictest	0	-21	swapper/1	08:10:17	1
699650	99	40	33,5	cyclictest	688515	-21	kworker/u4:16+events_unbound	08:25:12	1
699650	99	39	33,4	cyclictest	0	-21	swapper/1	07:35:00	1
699650	99	39	33,4	cyclictest	0	-21	swapper/1	07:34:59	1
699650	99	39	29,8	cyclictest	722813	-21	munin-run	08:40:01	1
699650	99	38	31,5	cyclictest	699659	-21	grep	07:10:01	1
699650	99	37	27,7	cyclictest	0	-21	swapper/1	07:50:16	1
699650	99	37	24,9	cyclictest	714858	-21	sort	08:05:40	1
699650	99	35	27,6	cyclictest	707351	-21	kworker/u4:10+events_unbound	07:40:02	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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