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 highest latencies:

System rack7slot2.osadl.org (updated Sun Aug 23, 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
3815763	99	128	113,9	cyclictest	53	-21	kswapd0	11:35:13	1
3815762	99	90	63,24	cyclictest	53	-21	kswapd0	10:15:10	0
3815763	99	80	71,7	cyclictest	3988605	-21	kworker/u4:3+events_unbound	12:05:20	1
3815763	99	80	71,7	cyclictest	3988605	-21	kworker/u4:3+events_unbound	12:05:19	1
3815763	99	77	68,7	cyclictest	3913051	-21	kworker/u4:4+events_unbound	10:29:58	1
3815763	99	77	65,8	cyclictest	3955513	-21	fschecks_count	11:10:20	1
3815763	99	76	68,6	cyclictest	3842847	-21	apt-get	08:55:11	1
3815762	99	76	62,10	cyclictest	53	-21	kswapd0	11:40:14	0
3815763	99	74	56,5	cyclictest	3862991	-21	kworker/u4:11+events_unbound	09:29:44	1
3815763	99	72	42,15	cyclictest	3986374	-21	ssh	11:45:17	1
3815763	99	70	63,5	cyclictest	4024215	-21	kworker/u4:11+events_unbound	12:30:22	1
3815762	99	70	4,61	cyclictest	3818312	-21	apt-get	07:20:09	0
3815763	99	69	61,6	cyclictest	4019694	-21	kworker/u4:2+events_unbound	12:25:22	1
3815762	99	69	60,6	cyclictest	53	-21	kswapd0	11:30:12	0
3815762	99	68	55,8	cyclictest	3916020	-21	ntp_states	10:25:35	0
3815762	99	67	3,57	cyclictest	3829902	-21	apt-get	08:05:09	0
3815762	99	67	3,57	cyclictest	3829902	-21	apt-get	08:05:09	0
3815762	99	66	45,14	cyclictest	4005020	-21	kthreadd	12:05:34	0
3815762	99	66	45,14	cyclictest	4005020	-21	kthreadd	12:05:34	0
3815762	99	64	59,3	cyclictest	3921435	-21	kworker/u4:3+events_unbound	11:00:05	0
3815763	99	63	53,7	cyclictest	4002217	-21	kworker/u4:0+events_unbound	12:20:21	1
3815762	99	63	52,8	cyclictest	3887749	-21	latency_hist	09:55:00	0
3815762	99	63	49,10	cyclictest	3844199	-21	cron	09:00:00	0
3815762	99	62	44,16	cyclictest	3999412	-21	tr	12:00:01	0
3815763	99	61	52,6	cyclictest	0	-21	swapper/1	10:10:12	1
3815763	99	60	52,6	cyclictest	3844168	-21	kworker/u4:18+events_unbound	09:05:00	1
3815762	99	59	49,7	cyclictest	3943984	-21	kworker/u4:4+events_unbound	11:05:06	0
3815763	99	58	48,7	cyclictest	37	-21	kcompactd0	09:55:19	1
3815762	99	57	43,8	cyclictest	0	-21	swapper/0	08:15:11	0
3815763	99	56	49,4	cyclictest	0	-21	swapper/1	11:55:16	1
3815763	99	56	41,6	cyclictest	0	-21	swapper/1	09:40:36	1
3815762	99	56	37,16	cyclictest	3972755	-21	latency_hist	11:30:01	0
3815763	99	55	45,7	cyclictest	3806631	-21	kworker/u4:13-rpciod	07:10:20	1
3815763	99	54	47,5	cyclictest	3963891	-21	latency_hist	11:20:02	1
3815763	99	54	45,6	cyclictest	0	-21	swapper/1	09:35:25	1
3815763	99	54	45,5	cyclictest	3897179	-21	aten2__	10:05:16	1
3815762	99	54	43,8	cyclictest	3901323	-21	cron	10:09:59	0
3815763	99	53	47,4	cyclictest	3966685	-21	kworker/u4:9+events_unbound	11:35:01	1
3815763	99	53	46,5	cyclictest	3876906	-21	kworker/u4:8+events_unbound	09:54:52	1
3815763	99	53	46,5	cyclictest	3846771	-21	diskmemload	10:34:58	1
3815763	99	53	45,5	cyclictest	3947359	-21	cat	11:00:39	1
3815763	99	53	43,7	cyclictest	378	-21	dbus-daemon	10:04:52	1
3815762	99	53	44,6	cyclictest	3964523	-21	/usr/sbin/munin	11:20:21	0
3815763	99	52	44,6	cyclictest	3948535	-21	kworker/u4:2+events_unbound	11:06:43	1
3815763	99	52	42,6	cyclictest	3821683	-21	/usr/sbin/munin	07:30:27	1
3815762	99	52	31,7	cyclictest	3911884	-21	unixbench-2d	10:20:40	0
3815762	99	52	21,20	cyclictest	3941844	-21	apt-get	10:55:14	0
3815763	99	51	45,4	cyclictest	3962123	-21	kworker/u4:4+events_unbound	11:20:10	1
3815763	99	51	44,5	cyclictest	3932629	-21	sshd	10:45:00	1
3815763	99	51	44,5	cyclictest	3826031	-21	kworker/u4:9+events_unbound	08:05:00	1
3815763	99	51	42,6	cyclictest	3969332	-21	ssh	11:25:29	1
3815762	99	51	40,8	cyclictest	3984107	-21	kworker/u4:7+events_unbound	11:51:41	0
3815762	99	51	2,25	cyclictest	4030564	-21	latency_hist	12:35:02	0
3815762	99	51	17,17	cyclictest	3841542	-21	kworker/u4:16+nfsiod	09:15:10	0
3815763	99	50	44,4	cyclictest	0	-21	swapper/1	09:10:35	1
3815763	99	50	3,12	cyclictest	0	-21	swapper/1	12:35:33	1
3815762	99	50	6,24	cyclictest	3938698	-21	grep	10:50:43	0
3815762	99	50	5,24	cyclictest	3861023	-21	ssh	09:25:17	0
3815762	99	50	43,5	cyclictest	3815759	-21	cyclictest	09:49:50	0
3815762	99	50	43,5	cyclictest	3815759	-21	cyclictest	09:49:50	0
3815762	99	50	42,6	cyclictest	4031448	-21	/usr/sbin/munin	12:35:21	0
3815762	99	50	31,16	cyclictest	0	-21	swapper/0	10:00:19	0
3815762	99	50	26,4	cyclictest	14	-21	ksoftirqd/0	07:25:11	0
3815762	99	50	2,41	cyclictest	1073	-21	snmpd	10:14:17	0
3815763	99	49	43,4	cyclictest	3921435	-21	kworker/u4:3+events_unbound	10:40:00	1
3815763	99	49	42,5	cyclictest	4009593	-21	/usr/sbin/munin	12:10:37	1
3815763	99	49	41,5	cyclictest	4000461	-21	ld	12:00:29	1
3815763	99	49	40,7	cyclictest	3819015	-21	gltestperf	07:20:25	1
3815763	99	49	39,8	cyclictest	3842120	-21	gltestperf	08:50:21	1
3815763	99	49	36,10	cyclictest	3878964	-21	/usr/sbin/munin	09:45:13	1
3815763	99	49	36,10	cyclictest	3878964	-21	/usr/sbin/munin	09:45:12	1
3815762	99	49	36,9	cyclictest	3989988	-21	ssh	11:49:17	0
3815762	99	49	31,4	cyclictest	0	-21	swapper/0	12:15:20	0
3815762	99	49	31,4	cyclictest	0	-21	swapper/0	12:15:19	0
3815762	99	49	27,20	cyclictest	0	-21	swapper/0	12:25:01	0
3815762	99	49	22,22	cyclictest	3978390	-21	ps	11:35:39	0
3815763	99	48	41,5	cyclictest	3840714	-21	fschecks_count	08:45:20	1
3815763	99	48	41,5	cyclictest	3815759	-21	cyclictest	11:52:15	1
3815763	99	48	41,4	cyclictest	4013974	-21	ntpq	12:15:37	1
3815763	99	48	41,4	cyclictest	4013974	-21	ntpq	12:15:36	1
3815763	99	48	40,5	cyclictest	3982823	-21	/usr/sbin/munin	11:40:39	1
3815763	99	48	39,6	cyclictest	3911091	-21	fschecks_time	10:20:21	1
3815762	99	48	5,10	cyclictest	3865277	-21	apt-get	09:30:13	0
3815762	99	48	41,5	cyclictest	3831743	-21	fschecks_time	08:10:19	0
3815762	99	48	38,8	cyclictest	3932610	-21	sshd	10:45:00	0
3815762	99	48	37,8	cyclictest	3960140	-21	gltestperf	11:15:23	0
3815763	99	47	39,5	cyclictest	0	-21	swapper/1	10:55:40	1
3815763	99	47	35,8	cyclictest	3862991	-21	kworker/u4:11-nfsiod	09:30:27	1
3815762	99	47	42,3	cyclictest	3890697	-21	kworker/u4:15+events_unbound	09:59:53	0
3815762	99	47	40,5	cyclictest	3839945	-21	find	08:40:35	0
3815762	99	47	39,6	cyclictest	3818335	-21	idleruntime-cro	07:20:00	0
3815762	99	47	37,7	cyclictest	3823501	-21	sh	07:40:01	0
3815762	99	47	33,10	cyclictest	3860466	-21	cron	09:25:01	0
3815762	99	47	31,9	cyclictest	0	-21	swapper/0	10:32:09	0
3815762	99	47	24,20	cyclictest	3851415	-21	apt-key	09:15:00	0
3815763	99	46	40,5	cyclictest	3841542	-21	kworker/u4:16+events_unbound	09:15:12	1
3815763	99	46	40,4	cyclictest	3846883	-21	latency_hist	09:10:01	1
3815763	99	46	39,5	cyclictest	3840230	-21	unixbench_singl	08:40:38	1
3815763	99	46	39,5	cyclictest	3836933	-21	fschecks_time	08:30:20	1
3815763	99	46	37,5	cyclictest	0	-21	swapper/1	10:50:28	1
3815763	99	46	36,8	cyclictest	3907535	-21	unixbench_singl	10:15:45	1
3815762	99	46	39,5	cyclictest	4008705	-21	aten_r7power_cu	12:10:16	0
3815762	99	46	37,6	cyclictest	3874855	-21	grep	09:40:19	0
3815762	99	46	37,6	cyclictest	3845931	-21	fschecks_count	09:05:20	0
3815762	99	46	35,9	cyclictest	3870213	-21	fschecks_time	09:35:20	0
3815762	99	46	29,15	cyclictest	3993137	-21	kworker/u4:2-rpciod	12:00:34	0
3815763	99	45	38,5	cyclictest	3933335	-21	basename	10:45:19	1
3815763	99	45	38,5	cyclictest	3830396	-21	fschecks_count	08:05:23	1
3815763	99	45	38,5	cyclictest	3830396	-21	fschecks_count	08:05:23	1
3815763	99	45	36,6	cyclictest	3823193	-21	switchtime	07:35:37	1
3815763	99	45	35,7	cyclictest	3826446	-21	df_abs	07:50:16	1
3815762	99	45	7,15	cyclictest	3844932	-21	ntpq	09:00:23	0
3815762	99	45	38,5	cyclictest	4021955	-21	apt-get	12:25:12	0
3815762	99	45	38,5	cyclictest	3824092	-21	gltestperf	07:40:19	0
3815762	99	45	37,6	cyclictest	0	-21	swapper/0	10:45:12	0
3815762	99	45	36,7	cyclictest	3821995	-21	timerandwakeup	07:30:39	0
3815763	99	44	36,6	cyclictest	3836350	-21	unixbench_multi	08:25:38	1
3815763	99	44	36,6	cyclictest	3811903	-21	kworker/u4:7+events_unbound	07:10:01	1
3815763	99	44	36,5	cyclictest	3837937	-21	aten2__	08:35:15	1
3815763	99	44	35,7	cyclictest	3817433	-21	fschecks_count	07:15:20	1
3815763	99	44	34,7	cyclictest	3820063	-21	df_abs	07:25:17	1
3815763	99	44	34,6	cyclictest	3835299	-21	latency_hist	08:25:02	1
3815762	99	44	5,13	cyclictest	3835904	-21	ntpq	08:25:22	0
3815762	99	44	37,5	cyclictest	3830008	-21	latency_hist	08:05:01	0
3815762	99	44	33,7	cyclictest	3827321	-21	modprobe	07:55:01	0
3815762	99	44	13,9	cyclictest	0	-21	swapper/0	08:00:01	0
3815762	99	43	36,5	cyclictest	3843047	-21	latency_hist	08:55:02	0
3815762	99	43	35,6	cyclictest	3956123	-21	proc_pri	11:10:37	0
3815762	99	43	35,6	cyclictest	3925324	-21	/usr/sbin/munin	10:35:42	0
3815762	99	43	35,5	cyclictest	3825160	-21	df_abs	07:45:18	0
3815762	99	43	34,7	cyclictest	3834460	-21	gltestperf	08:20:20	0
3815763	99	42	33,7	cyclictest	3823897	-21	df_abs	07:40:16	1
3815763	99	42	33,7	cyclictest	0	-21	swapper/1	09:20:28	1
3815763	99	42	32,7	cyclictest	0	-21	swapper/1	07:45:40	1
3815762	99	42	25,14	cyclictest	3815913	-21	apt-get	07:10:14	0
3815762	99	41	34,5	cyclictest	3840812	-21	fschecks_time	08:45:21	0
3815762	99	41	28,10	cyclictest	3837005	-21	gltestperf	08:30:22	0
3815763	99	40	33,5	cyclictest	3831223	-21	kworker/u4:2+events_unbound	08:15:02	1
3815763	99	40	21,6	cyclictest	3814404	-21	kworker/u4:10+events_unbound	08:10:12	1
3815762	99	39	29,7	cyclictest	0	-21	swapper/0	08:35:19	0
3815763	99	38	28,8	cyclictest	3827696	-21	grep	07:55:18	1
3815762	99	35	27,5	cyclictest	0	-21	swapper/0	07:10:01	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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