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 100 highest latencies:

System rack7slot2.osadl.org (updated Mon Dec 15, 2025 12:44:13)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3548236	99	127	92,30	cyclictest	53	-21	kswapd0	11:00:10	0
3548236	99	123	83,26	cyclictest	3551034	-21	sshd	07:20:10	0
3548236	99	106	98,6	cyclictest	3648950	-21	kworker/u4:4+events_unbound	10:45:55	0
3548236	99	100	93,5	cyclictest	3677690	-21	kworker/u4:2+events_unbound	11:51:08	0
3548236	99	99	91,6	cyclictest	3648951	-21	kworker/u4:8+events_unbound	10:50:57	0
3548236	99	97	89,6	cyclictest	3665666	-21	kworker/u4:1+events_unbound	11:06:00	0
3548236	99	96	87,7	cyclictest	3681826	-21	kworker/u4:6+events_unbound	11:21:02	0
3548237	99	91	81,7	cyclictest	53	-21	kswapd0	12:25:15	1
3548237	99	91	81,7	cyclictest	53	-21	kswapd0	12:25:14	1
3548236	99	88	80,6	cyclictest	3681824	-21	kworker/u4:5+events_unbound	11:31:04	0
3548236	99	88	80,6	cyclictest	3681824	-21	kworker/u4:5+events_unbound	11:31:04	0
3548237	99	76	69,5	cyclictest	3667418	-21	find	11:00:13	1
3548236	99	72	65,5	cyclictest	53	-21	kswapd0	12:15:09	0
3548236	99	68	60,6	cyclictest	3722943	-21	kworker/u4:8+events_unbound	12:10:01	0
3548237	99	67	28,15	cyclictest	3701457	-21	ssh	11:40:38	1
3548237	99	66	56,7	cyclictest	53	-21	kswapd0	10:30:00	1
3548237	99	66	50,13	cyclictest	372	-21	dbus-daemon	09:05:37	1
3548237	99	66	39,19	cyclictest	0	-21	swapper/1	11:55:31	1
3548237	99	66	29,12	cyclictest	3707549	-21	ssh	11:48:43	1
3548237	99	66	28,12	cyclictest	3589526	-21	ssh	09:22:28	1
3548237	99	66	27,15	cyclictest	3699845	-21	ssh	11:39:38	1
3548237	99	66	23,17	cyclictest	3616668	-21	ssh	09:56:46	1
3548237	99	66	23,15	cyclictest	3683294	-21	ssh	11:19:37	1
3548237	99	65	28,11	cyclictest	3653015	-21	ssh	10:42:00	1
3548237	99	65	26,22	cyclictest	3558632	-21	latency_hist	07:50:01	1
3548237	99	65	23,16	cyclictest	3594227	-21	ssh	09:28:48	1
3548236	99	65	58,5	cyclictest	3585425	-21	kworker/u4:15+events_unbound	09:20:43	0
3548237	99	64	54,7	cyclictest	3619341	-21	/usr/sbin/munin	10:00:24	1
3548237	99	64	26,11	cyclictest	3742225	-21	ssh	12:30:39	1
3548237	99	64	26,10	cyclictest	3664892	-21	ssh	10:56:19	1
3548237	99	64	26,10	cyclictest	3598144	-21	ssh	09:33:45	1
3548237	99	63	24,12	cyclictest	3722596	-21	ssh	12:06:32	1
3548237	99	63	23,16	cyclictest	3586714	-21	ssh	09:19:37	1
3548237	99	63	22,15	cyclictest	3629999	-21	ssh	10:14:51	1
3548237	99	63	21,16	cyclictest	3662531	-21	ssh	10:54:17	1
3548237	99	63	20,16	cyclictest	3608328	-21	ssh	09:45:47	1
3548237	99	62	29,3	cyclictest	3554865	-21	apt-get	07:35:15	1
3548237	99	62	25,12	cyclictest	3625914	-21	ssh	10:09:26	1
3548237	99	62	25,10	cyclictest	3691631	-21	ssh	11:29:38	1
3548237	99	62	23,15	cyclictest	3730657	-21	ssh	12:16:29	1
3548237	99	62	23,14	cyclictest	3646677	-21	ssh	10:35:08	1
3548237	99	62	23,14	cyclictest	3646677	-21	ssh	10:35:07	1
3548237	99	62	22,15	cyclictest	3605995	-21	ssh	09:43:45	1
3548237	99	62	22,14	cyclictest	3734471	-21	ssh	12:20:54	1
3548237	99	62	22,14	cyclictest	3734471	-21	ssh	12:20:54	1
3548237	99	62	21,14	cyclictest	3656671	-21	ssh	10:46:16	1
3548237	99	61	27,9	cyclictest	3718806	-21	ssh	12:02:05	1
3548237	99	61	27,11	cyclictest	3675033	-21	ssh	11:09:29	1
3548237	99	61	25,13	cyclictest	3633988	-21	ssh	10:19:45	1
3548237	99	61	24,12	cyclictest	3612198	-21	ssh	09:50:43	1
3548237	99	61	23,13	cyclictest	3637516	-21	ssh	10:23:46	1
3548237	99	61	23,11	cyclictest	3695623	-21	ssh	11:34:22	1
3548237	99	61	23,11	cyclictest	3695623	-21	ssh	11:34:21	1
3548237	99	61	22,13	cyclictest	3579244	-21	apt-get	09:10:15	1
3548237	99	61	21,15	cyclictest	3643375	-21	ntpq	10:30:32	1
3548237	99	61	21,15	cyclictest	3600884	-21	ssh	09:36:33	1
3548237	99	60	37,18	cyclictest	3676291	-21	ssh	11:10:25	1
3548237	99	60	25,11	cyclictest	3747914	-21	ssh	12:38:16	1
3548237	99	60	21,15	cyclictest	3727143	-21	ssh	12:12:23	1
3548237	99	60	20,16	cyclictest	3710642	-21	ssh	11:51:56	1
3548236	99	59	38,18	cyclictest	0	-21	swapper/0	08:15:25	0
3548237	99	58	20,14	cyclictest	3687339	-21	ssh	11:24:20	1
3548236	99	58	51,5	cyclictest	3555938	-21	kworker/u4:17+events_unbound	07:40:14	0
3548236	99	58	39,17	cyclictest	3578971	-21	diskmemload	10:00:33	0
3548237	99	57	42,8	cyclictest	3567473	-21	modprobe	08:24:59	1
3548237	99	57	18,14	cyclictest	3550263	-21	ld	07:15:28	1
3548236	99	57	5,34	cyclictest	3615600	-21	ssh	09:55:33	0
3548236	99	57	50,5	cyclictest	3640555	-21	kworker/u4:7+events_unbound	10:31:09	0
3548236	99	57	49,6	cyclictest	53	-21	kswapd0	10:10:01	0
3548237	99	56	19,14	cyclictest	3575932	-21	ntpq	08:55:30	1
3548237	99	55	19,13	cyclictest	3577737	-21	latency_hist	09:05:06	1
3548237	99	55	19,12	cyclictest	3572077	-21	ntpq	08:40:28	1
3548237	99	54	37,10	cyclictest	1058	-21	snmpd	08:05:13	1
3548237	99	54	20,13	cyclictest	3557301	-21	date	07:45:02	1
3548237	99	53	18,10	cyclictest	3565620	-21	ntpq	08:15:24	1
3548236	99	53	46,5	cyclictest	3713280	-21	/usr/sbin/munin	11:55:23	0
3548236	99	53	46,5	cyclictest	3549467	-21	kworker/u4:10+events_unbound	07:15:03	0
3548236	99	53	40,5	cyclictest	3690272	-21	kworker/u4:1+events_unbound	12:04:43	0
3548236	99	52	9,25	cyclictest	3578971	-21	diskmemload	12:05:17	0
3548236	99	52	41,8	cyclictest	3553396	-21	kworker/u4:10-rpciod	07:55:37	0
3548236	99	52	39,11	cyclictest	3636373	-21	kworker/u4:4+events_unbound	10:22:35	0
3548236	99	52	33,16	cyclictest	3639037	-21	gltestperf	10:25:21	0
3548237	99	51	36,10	cyclictest	3569488	-21	ntpq	08:30:25	1
3548237	99	51	36,10	cyclictest	3560604	-21	ntpq	07:55:30	1
3548237	99	51	35,11	cyclictest	3554152	-21	ntpq	07:30:24	1
3548237	99	51	23,4	cyclictest	3567650	-21	apt-get	08:25:12	1
3548236	99	51	43,6	cyclictest	3667095	-21	cron	11:00:00	0
3548236	99	51	38,6	cyclictest	3648955	-21	kworker/u4:12+events_unbound	10:44:01	0
3548237	99	50	17,9	cyclictest	3552919	-21	collect2	07:25:28	1
3548237	99	50	17,10	cyclictest	3548982	-21	ntpq	07:10:23	1
3548236	99	50	43,5	cyclictest	3557723	-21	fschecks_time	07:45:17	0
3548236	99	50	42,6	cyclictest	3701899	-21	sshd	11:41:04	0
3548236	99	50	42,6	cyclictest	3648956	-21	kworker/u4:13+events_unbound	10:40:01	0
3548236	99	50	42,6	cyclictest	3648956	-21	kworker/u4:13+events_unbound	10:40:00	0
3548236	99	50	40,8	cyclictest	315	-21	systemd-journal	10:10:49	0
3548236	99	50	40,6	cyclictest	3700180	-21	latency_hist	11:40:01	0
3548236	99	50	31,16	cyclictest	3567890	-21	fschecks_count	08:25:19	0
3548237	99	49	35,10	cyclictest	3559401	-21	ps	07:50:34	1
3548237	99	49	31,14	cyclictest	3551278	-21	df_inode	07:20:21	1
3548237	99	49	17,9	cyclictest	3572751	-21	apt-get	08:45:14	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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