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 highest latencies:

System rack7slot2.osadl.org (updated Thu Jun 25, 2026 12:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3489830	99	91	82,7	cyclictest	3501281	-21	kworker/u4:2+events_unbound	08:20:01	1
3489829	99	85	48,32	cyclictest	0	-21	swapper/0	07:15:01	0
3489829	99	82	27,22	cyclictest	3665645	-21	apt-get	11:55:09	0
3489829	99	77	38,35	cyclictest	3534636	-21	gltestperf	09:25:23	0
3489830	99	76	69,5	cyclictest	3658039	-21	ntpq	11:45:27	1
3489829	99	76	63,8	cyclictest	53	-21	kswapd0	08:30:21	0
3489829	99	75	55,17	cyclictest	3547402	-21	ssh	09:40:16	0
3489829	99	73	23,16	cyclictest	0	-21	swapper/0	09:40:01	0
3489829	99	72	64,6	cyclictest	3615484	-21	kworker/u4:21+events_unbound	11:06:08	0
3489829	99	71	62,7	cyclictest	3642196	-21	kworker/u4:6+events_unbound	11:31:12	0
3489829	99	71	39,29	cyclictest	3665718	-21	latency_hist	11:55:02	0
3489829	99	71	37,30	cyclictest	0	-21	swapper/0	10:05:23	0
3489829	99	71	33,6	cyclictest	0	-21	swapper/0	09:35:00	0
3489829	99	70	47,16	cyclictest	0	-21	swapper/0	11:40:41	0
3489829	99	69	58,7	cyclictest	53	-21	kswapd0	10:40:02	0
3489829	99	69	35,4	cyclictest	3632261	-21	gcc	11:15:46	0
3489829	99	69	33,6	cyclictest	0	-21	swapper/0	11:00:31	0
3489829	99	69	30,7	cyclictest	0	-21	swapper/0	09:55:01	0
3489829	99	68	5,17	cyclictest	3583457	-21	grep	10:20:29	0
3489829	99	68	3,28	cyclictest	3670318	-21	ssh	12:00:13	0
3489829	99	68	31,8	cyclictest	3511882	-21	aten_r7power_po	08:35:19	0
3489829	99	68	30,8	cyclictest	3610249	-21	sh	10:50:37	0
3489830	99	67	59,6	cyclictest	3558377	-21	kworker/u4:0+events_unbound	10:10:56	1
3489829	99	67	58,6	cyclictest	3492342	-21	kworker/u4:11+events_unbound	07:35:13	0
3489829	99	67	37,4	cyclictest	3587231	-21	aten_r7power_po	10:25:15	0
3489829	99	67	32,4	cyclictest	0	-21	swapper/0	12:20:19	0
3489829	99	67	27,7	cyclictest	0	-21	swapper/0	12:30:15	0
3489829	99	66	8,16	cyclictest	3684812	-21	sshd	12:16:17	0
3489829	99	65	37,4	cyclictest	3652681	-21	sendmail	11:40:01	0
3489829	99	64	52,9	cyclictest	3679141	-21	fschecks_count	12:10:19	0
3489829	99	63	53,7	cyclictest	3567409	-21	kworker/u4:4+events_unbound	10:15:57	0
3489830	99	61	51,8	cyclictest	3589242	-21	kworker/u4:3+events_unbound	10:30:06	1
3489829	99	61	53,6	cyclictest	3500009	-21	kworker/u4:9+events_unbound	08:20:39	0
3489829	99	60	42,11	cyclictest	3555781	-21	ssh	09:50:00	0
3489829	99	59	46,9	cyclictest	53	-21	kswapd0	12:30:01	0
3489829	99	57	51,4	cyclictest	3657469	-21	cut	11:45:16	0
3489830	99	56	15,14	cyclictest	3701142	-21	ntpq	12:35:38	1
3489830	99	56	15,14	cyclictest	3701142	-21	ntpq	12:35:37	1
3489829	99	56	48,6	cyclictest	3558377	-21	kworker/u4:0+events_unbound	09:55:55	0
3489830	99	53	46,4	cyclictest	0	-21	swapper/1	11:30:14	1
3489830	99	53	44,7	cyclictest	3637827	-21	kworker/u4:0-rpciod	11:25:17	1
3489830	99	53	43,7	cyclictest	0	-21	swapper/1	09:35:37	1
3489830	99	53	15,16	cyclictest	3633134	-21	ssh	11:16:32	1
3489830	99	53	14,14	cyclictest	3624410	-21	ssh	11:06:37	1
3489830	99	53	14,11	cyclictest	3629774	-21	ssh	11:13:08	1
3489830	99	53	14,11	cyclictest	3616528	-21	ssh	10:58:08	1
3489830	99	53	13,15	cyclictest	3550703	-21	ssh	09:43:57	1
3489830	99	53	13,14	cyclictest	3686248	-21	ssh	12:18:46	1
3489830	99	52	45,5	cyclictest	3504710	-21	sshd	08:05:34	1
3489830	99	52	16,13	cyclictest	3541431	-21	ssh	09:33:12	1
3489829	99	52	45,5	cyclictest	3573978	-21	aten_r7power_po	10:10:15	0
3489829	99	52	41,9	cyclictest	3499259	-21	cut	07:45:19	0
3489830	99	51	44,5	cyclictest	3499242	-21	fschecks_time	07:45:19	1
3489830	99	51	22,18	cyclictest	3512839	-21	systemd	08:35:42	1
3489830	99	51	17,7	cyclictest	3604787	-21	apt-get	10:45:13	1
3489830	99	51	16,12	cyclictest	3676061	-21	ssh	12:05:52	1
3489830	99	51	15,14	cyclictest	3532172	-21	ssh	09:22:27	1
3489830	99	51	15,11	cyclictest	3636516	-21	ssh	11:20:37	1
3489830	99	51	15,10	cyclictest	3681255	-21	ssh	12:12:31	1
3489830	99	51	13,14	cyclictest	3620027	-21	ssh	11:01:38	1
3489830	99	51	11,14	cyclictest	3580751	-21	ssh	10:17:26	1
3489829	99	51	41,8	cyclictest	3489764	-21	kworker/u4:0+events_unbound	07:25:13	0
3489829	99	51	41,7	cyclictest	3607809	-21	sh	10:48:18	0
3489829	99	51	39,8	cyclictest	3595281	-21	ssh	10:34:25	0
3489829	99	51	36,8	cyclictest	3598214	-21	kworker/u4:8-rpciod	10:42:13	0
3489830	99	50	43,5	cyclictest	3491586	-21	fschecks_time	07:15:19	1
3489830	99	50	41,7	cyclictest	3667291	-21	unixbench_singl	11:55:46	1
3489830	99	50	19,19	cyclictest	0	-21	swapper/1	10:05:36	1
3489830	99	50	12,16	cyclictest	3559956	-21	ssh	09:54:37	1
3489830	99	50	12,14	cyclictest	3553066	-21	ssh	09:45:46	1
3489830	99	50	12,10	cyclictest	3522808	-21	ssh	09:11:36	1
3489830	99	49	41,6	cyclictest	3511390	-21	timerandwakeup	08:30:54	1
3489830	99	49	40,6	cyclictest	3525705	-21	gltestperf	09:15:21	1
3489830	99	49	38,9	cyclictest	3497484	-21	munin-plugin-st	07:40:01	1
3489830	99	49	37,8	cyclictest	0	-21	swapper/1	10:50:10	1
3489830	99	49	13,13	cyclictest	3699884	-21	ssh	12:34:50	1
3489830	99	49	12,10	cyclictest	3663011	-21	ssh	11:50:46	1
3489830	99	49	12,10	cyclictest	3650970	-21	ssh	11:37:20	1
3489830	99	49	10,14	cyclictest	3672986	-21	ssh	12:02:51	1
3489830	99	49	10,14	cyclictest	3537881	-21	ssh	09:29:31	1
3489829	99	49	42,5	cyclictest	3675133	-21	gltestperf	12:05:22	0
3489829	99	49	42,5	cyclictest	3637828	-21	kworker/u4:1+events_unbound	11:25:01	0
3489829	99	49	40,6	cyclictest	3617755	-21	ssh	11:00:00	0
3489829	99	49	39,6	cyclictest	3516317	-21	grep	08:50:35	0
3489830	99	48	25,17	cyclictest	3561239	-21	ntpq	09:55:27	1
3489830	99	48	13,10	cyclictest	3601209	-21	ld	10:40:32	1
3489829	99	48	37,7	cyclictest	3522267	-21	/usr/sbin/munin	09:10:48	0
3489829	99	48	36,8	cyclictest	3489764	-21	kworker/u4:0-rpciod	08:25:21	0
3489830	99	47	40,5	cyclictest	3501718	-21	fschecks_count	07:55:19	1
3489830	99	47	40,4	cyclictest	3687513	-21	hostname	12:20:17	1
3489830	99	47	14,10	cyclictest	3584950	-21	ssh	10:22:07	1
3489830	99	47	10,13	cyclictest	3655718	-21	ssh	11:42:58	1
3489829	99	47	37,7	cyclictest	3565653	-21	ntp_kernel_err	10:00:25	0
3489829	99	47	30,5	cyclictest	3631217	-21	latency_hist	11:15:06	0
3489830	99	46	38,5	cyclictest	3505117	-21	kworker/u4:12+events_unbound	08:25:02	1
3489830	99	46	38,5	cyclictest	3489890	-21	latency_hist	07:10:01	1
3489830	99	46	36,8	cyclictest	3565393	-21	fschecks_time	10:00:19	1
3489830	99	46	14,13	cyclictest	3691727	-21	aten_r7power_cu	12:25:16	1
3489829	99	46	7,31	cyclictest	256	50	irq/23-42890000.ethernet	12:35:37	0
3489829	99	46	7,31	cyclictest	256	50	irq/23-42890000.ethernet	12:35:37	0
3489829	99	46	38,6	cyclictest	3615482	-21	kworker/u4:19+events_unbound	11:26:11	0
3489829	99	46	38,5	cyclictest	3519723	-21	fschecks_count	09:05:18	0
3489829	99	46	35,7	cyclictest	0	-21	swapper/0	09:22:27	0
3489829	99	46	34,9	cyclictest	3504448	-21	tail	08:05:19	0
3489830	99	45	38,5	cyclictest	3520694	-21	latency_hist	09:10:03	1
3489830	99	45	38,5	cyclictest	3514758	-21	gltestperf	08:45:20	1
3489830	99	45	37,6	cyclictest	3596210	-21	df_abs	10:35:18	1
3489830	99	45	35,7	cyclictest	3493484	-21	timerwakeupswit	07:20:36	1
3489829	99	45	37,5	cyclictest	3508964	-21	kworker/u4:17+events_unbound	09:00:48	0
3489829	99	45	37,5	cyclictest	3505551	-21	fschecks_count	08:10:18	0
3489829	99	45	36,7	cyclictest	3495138	-21	aten2__	07:30:14	0
3489829	99	45	36,6	cyclictest	0	-21	swapper/0	09:20:02	0
3489830	99	44	9,13	cyclictest	3592280	-21	ntpq	10:30:28	1
3489830	99	44	34,8	cyclictest	3509367	-21	df_abs	08:25:17	1
3489830	99	44	26,15	cyclictest	3502771	-21	apt-get	08:00:12	1
3489830	99	43	35,5	cyclictest	3490342	-21	gltestperf	07:10:21	1
3489830	99	43	35,5	cyclictest	0	-21	swapper/1	08:45:00	1
3489830	99	43	35,5	cyclictest	0	-21	swapper/1	08:45:00	1
3489829	99	43	36,5	cyclictest	3507709	-21	idleruntime-cro	08:20:01	0
3489829	99	43	35,6	cyclictest	3518027	-21	sendmail	09:00:01	0
3489830	99	42	34,6	cyclictest	3494032	-21	df_abs	07:25:16	1
3489830	99	42	33,7	cyclictest	3498762	-21	cron	07:44:59	1
3489830	99	42	33,7	cyclictest	3489764	-21	kworker/u4:0+events_unbound	07:50:25	1
3489830	99	42	33,6	cyclictest	0	-21	swapper/1	09:05:01	1
3489829	99	42	33,6	cyclictest	0	-21	swapper/0	07:50:24	0
3489829	99	42	33,5	cyclictest	0	-21	swapper/0	08:00:20	0
3489829	99	42	32,7	cyclictest	0	-21	swapper/0	08:45:16	0
3489829	99	41	33,5	cyclictest	0	-21	swapper/0	07:20:19	0
3489829	99	41	32,6	cyclictest	0	-21	swapper/0	07:55:30	0
3489829	99	41	30,8	cyclictest	3507668	-21	kworker/u4:5-rpciod	08:40:40	0
3489829	99	41	30,8	cyclictest	3507668	-21	kworker/u4:5-rpciod	08:40:40	0
3489830	99	40	33,5	cyclictest	3489764	-21	kworker/u4:0+events_unbound	08:50:44	1
3489830	99	40	32,6	cyclictest	0	-21	swapper/1	08:10:35	1
3489830	99	40	30,7	cyclictest	0	-21	swapper/1	08:55:39	1
3489829	99	40	5,23	cyclictest	3498751	-21	modprobe	07:45:00	0
3489829	99	40	30,7	cyclictest	3491548	-21	fschecks_count	07:15:17	0
3489830	99	37	30,5	cyclictest	0	-21	swapper/1	07:30:33	1
3489829	99	36	27,6	cyclictest	0	-21	swapper/0	07:10:02	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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