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 792 highest latencies:

System rack7slot2.osadl.org (updated Thu Dec 18, 2025 12:44:15)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3731316	99	118	83,28	cyclictest	53	-21	kswapd0	12:05:11	0
3731316	99	103	85,12	cyclictest	53	-21	kswapd0	11:40:10	0
3731316	99	103	85,12	cyclictest	53	-21	kswapd0	11:40:10	0
3731318	99	95	86,6	cyclictest	3755825	-21	kworker/u4:12+events_unbound	09:21:10	1
3731316	99	92	52,36	cyclictest	3794942	-21	apt-get	09:50:11	0
3731318	99	91	60,28	cyclictest	53	-21	kswapd0	10:40:00	1
3731318	99	84	74,8	cyclictest	3705372	-21	kworker/u4:12+events_unbound	07:15:33	1
3731318	99	84	73,8	cyclictest	53	-21	kswapd0	10:20:33	1
3731318	99	84	73,8	cyclictest	53	-21	kswapd0	10:20:32	1
3731316	99	80	31,35	cyclictest	3784034	-21	unixbench_singl	09:35:40	0
3731316	99	79	36,41	cyclictest	3867744	-21	diskmemload	11:20:01	0
3731316	99	78	26,41	cyclictest	3742191	-21	fschecks_time	07:50:19	0
3731316	99	76	26,38	cyclictest	0	-21	swapper/0	11:05:22	0
3731318	99	75	66,6	cyclictest	3878311	-21	kworker/u4:19+events_unbound	12:10:00	1
3731318	99	75	63,9	cyclictest	3737748	-21	kworker/u4:2+events_unbound	08:15:00	1
3731316	99	75	29,29	cyclictest	3743174	-21	aten_r7power_cu	07:55:15	0
3731318	99	74	64,7	cyclictest	3843676	-21	apt-get	10:50:08	1
3731316	99	73	1,47	cyclictest	3824369	-21	ntpq	10:25:33	0
3731316	99	72	40,28	cyclictest	3753872	-21	gltestperf	08:35:22	0
3731316	99	72	2,46	cyclictest	3807838	-21	ssh	10:05:28	0
3731318	99	71	63,6	cyclictest	3748049	-21	kworker/u4:6+events_unbound	08:25:02	1
3731316	99	71	25,43	cyclictest	0	-21	swapper/0	10:50:25	0
3731318	99	70	61,6	cyclictest	3751990	-21	kworker/u4:8+events_unbound	09:16:10	1
3731316	99	70	40,27	cyclictest	3739064	-21	grep	07:40:01	0
3731316	99	70	34,31	cyclictest	3901699	-21	kworker/u4:1-rpciod	12:25:31	0
3731316	99	70	2,46	cyclictest	3799618	-21	/usr/sbin/munin	09:55:23	0
3731316	99	70	2,46	cyclictest	3799618	-21	/usr/sbin/munin	09:55:23	0
3731316	99	70	1,47	cyclictest	3916130	-21	ld	12:20:36	0
3731318	99	69	2,54	cyclictest	3923709	-21	sh	12:30:27	1
3731316	99	69	27,39	cyclictest	0	-21	swapper/0	10:30:31	0
3731316	99	69	1,46	cyclictest	3891600	-21	sed	11:50:01	0
3731316	99	69	1,45	cyclictest	3893246	-21	ssh	11:51:01	0
3731316	99	69	1,45	cyclictest	3752167	-21	/usr/sbin/munin	08:30:10	0
3731316	99	69	1,44	cyclictest	3860022	-21	ssh	11:10:13	0
3731318	99	68	60,6	cyclictest	3882327	-21	kworker/u4:4+events_unbound	11:41:34	1
3731318	99	68	60,6	cyclictest	3882327	-21	kworker/u4:4+events_unbound	11:41:33	1
3731318	99	68	49,12	cyclictest	3871712	-21	modprobe	11:25:01	1
3731316	99	68	7,55	cyclictest	3731317	-21	kworker/u4:12	07:10:01	0
3731318	99	67	54,7	cyclictest	3722669	-21	kworker/u4:0+events_unbound	07:30:01	1
3731316	99	67	56,8	cyclictest	3739021	-21	kworker/u4:8+events_unbound	07:40:38	0
3731316	99	67	19,30	cyclictest	0	-21	swapper/0	11:25:17	0
3731316	99	66	29,27	cyclictest	256	50	irq/23-42890000.ethernet	07:15:21	0
3731316	99	66	20,28	cyclictest	0	-21	swapper/0	10:45:16	0
3731318	99	65	55,7	cyclictest	3842213	-21	kworker/u4:4+events_unbound	10:56:25	1
3731316	99	65	1,45	cyclictest	3923994	-21	ssh	12:30:38	0
3731316	99	64	34,27	cyclictest	3746782	-21	kworker/u4:4-rpciod	08:10:20	0
3731316	99	64	24,37	cyclictest	0	-21	swapper/0	11:00:26	0
3731318	99	63	55,6	cyclictest	3741677	-21	kworker/u4:18+events_unbound	07:55:41	1
3731318	99	63	55,5	cyclictest	3909687	-21	kworker/u4:7+events_unbound	12:20:01	1
3731318	99	63	45,6	cyclictest	3889798	-21	kworker/u4:9+events_unbound	12:05:00	1
3731316	99	63	4,52	cyclictest	3758559	-21	apt-get	08:55:11	0
3731316	99	63	3,54	cyclictest	3790930	-21	apt-get	09:45:12	0
3731316	99	63	30,30	cyclictest	0	-21	swapper/0	10:20:19	0
3731316	99	63	30,30	cyclictest	0	-21	swapper/0	10:20:19	0
3731316	99	63	1,38	cyclictest	3770128	-21	ssh	09:19:44	0
3731316	99	62	4,51	cyclictest	3770311	-21	apt-get	09:20:09	0
3731316	99	62	39,21	cyclictest	3803315	-21	/usr/sbin/munin	10:00:16	0
3731316	99	62	3,52	cyclictest	3908209	-21	ntpq	12:10:30	0
3731316	99	62	33,26	cyclictest	3842216	-21	kworker/u4:8-rpciod	10:55:32	0
3731316	99	62	30,28	cyclictest	3836159	-21	fschecks_count	10:40:20	0
3731318	99	61	50,6	cyclictest	0	-21	swapper/1	10:25:36	1
3731316	99	61	1,39	cyclictest	3746773	-21	sshd	08:06:10	0
3731318	99	60	52,6	cyclictest	3736477	-21	kworker/u4:1+events_unbound	07:35:38	1
3731318	99	60	50,7	cyclictest	3813602	-21	kworker/u4:9+events_unbound	10:20:00	1
3731316	99	60	3,51	cyclictest	3735402	-21	apt-get	07:25:12	0
3731316	99	60	2,54	cyclictest	3744433	-21	apt-get	08:00:11	0
3731316	99	60	2,54	cyclictest	3741178	-21	ntpq	07:45:35	0
3731316	99	60	2,47	cyclictest	3815484	-21	df_abs	10:15:17	0
3731316	99	60	2,43	cyclictest	3763270	-21	ntpq	09:10:33	0
3731316	99	60	1,56	cyclictest	3732702	-21	sed	07:15:01	0
3731316	99	59	5,50	cyclictest	3880021	-21	apt-get	11:35:12	0
3731316	99	59	2,52	cyclictest	3868021	-21	apt-get	11:20:12	0
3731316	99	59	2,42	cyclictest	3879873	-21	ssh	11:35:02	0
3731316	99	59	22,28	cyclictest	3733912	-21	kworker/u4:8+rpciod	07:20:19	0
3731316	99	59	1,55	cyclictest	3737062	-21	/usr/sbin/munin	07:30:20	0
3731316	99	59	1,55	cyclictest	3737062	-21	/usr/sbin/munin	07:30:20	0
3731316	99	59	1,52	cyclictest	3832448	-21	ntpq	10:35:29	0
3731318	99	58	47,6	cyclictest	3862077	-21	kworker/u4:2+events_unbound	11:15:00	1
3731316	99	58	4,51	cyclictest	3778724	-21	apt-get	09:30:12	0
3731316	99	58	27,29	cyclictest	3787593	-21	ntp_kernel_pll_	09:40:29	0
3731316	99	58	2,52	cyclictest	3760458	-21	ntpq	09:00:28	0
3731316	99	58	2,50	cyclictest	3757929	-21	ntpq	08:50:32	0
3731316	99	58	2,39	cyclictest	3811992	-21	ntpq	10:10:34	0
3731318	99	57	49,6	cyclictest	3741677	-21	kworker/u4:18+events_unbound	07:55:01	1
3731318	99	57	43,11	cyclictest	3876966	-21	processes	11:30:38	1
3731316	99	57	3,48	cyclictest	3911373	-21	apt-get	12:15:12	0
3731316	99	57	3,48	cyclictest	3748860	-21	ntpq	08:15:30	0
3731316	99	57	3,48	cyclictest	3748860	-21	ntpq	08:15:29	0
3731316	99	57	26,28	cyclictest	3751177	-21	fschecks_count	08:25:25	0
3731316	99	57	2,51	cyclictest	3749636	-21	apt-get	08:20:24	0
3731316	99	57	2,40	cyclictest	3761701	-21	ntpq	09:05:27	0
3731318	99	56	47,7	cyclictest	3740318	-21	kworker/u4:14+events_unbound	08:20:01	1
3731318	99	56	47,7	cyclictest	3740318	-21	kworker/u4:14+events_unbound	08:20:01	1
3731318	99	56	44,8	cyclictest	3737372	-21	ps	07:30:36	1
3731318	99	56	44,8	cyclictest	3737372	-21	ps	07:30:35	1
3731316	99	56	46,8	cyclictest	3755657	-21	/usr/sbin/munin	08:40:38	0
3731316	99	56	22,31	cyclictest	3903243	-21	sh	12:05:00	0
3731318	99	55	42,10	cyclictest	3788872	-21	ssh	09:41:57	1
3731316	99	55	26,26	cyclictest	3775824	-21	timerwakeupswit	09:25:40	0
3731316	99	55	2,48	cyclictest	3756573	-21	ntpq	08:45:25	0
3731318	99	54	46,6	cyclictest	3475939	-21	kworker/u4:10+events_unbound	08:05:45	1
3731318	99	54	10,27	cyclictest	0	-21	swapper/1	11:35:34	1
3731318	99	53	46,5	cyclictest	3792985	-21	kworker/u4:1+events_unbound	09:51:14	1
3731316	99	53	2,47	cyclictest	3926926	-21	ssh	12:35:12	0
3731318	99	52	45,5	cyclictest	53	-21	kswapd0	12:35:14	1
3731318	99	52	45,5	cyclictest	3920221	-21	timerandwakeup	12:25:39	1
3731316	99	52	2,45	cyclictest	3895750	-21	sh	11:55:13	0
3731318	99	51	44,5	cyclictest	3862079	-21	kworker/u4:5+events_unbound	11:15:02	1
3731318	99	50	44,4	cyclictest	0	-21	swapper/1	10:05:37	1
3731318	99	50	42,5	cyclictest	0	-21	swapper/1	11:50:15	1
3731318	99	49	42,5	cyclictest	3792046	-21	timerwakeupswit	09:45:40	1
3731318	99	49	42,5	cyclictest	3762525	-21	aten2__	09:10:17	1
3731318	99	48	40,6	cyclictest	3828744	-21	timerandwakeup	10:30:40	1
3731318	99	48	40,6	cyclictest	3757096	-21	kworker/u4:15+events_unbound	08:51:06	1
3731318	99	48	39,6	cyclictest	3842213	-21	kworker/u4:4+events_unbound	10:49:45	1
3731318	99	48	39,6	cyclictest	0	-21	swapper/1	12:20:38	1
3731318	99	48	38,7	cyclictest	3754565	-21	ls	08:40:01	1
3731318	99	47	41,4	cyclictest	0	-21	swapper/1	11:25:29	1
3731318	99	47	39,5	cyclictest	3741464	-21	timerandwakeup	07:45:46	1
3731318	99	47	38,7	cyclictest	3852397	-21	fschecks_count	11:00:20	1
3731318	99	47	37,8	cyclictest	3805364	-21	kworker/u4:12+events_unbound	10:10:13	1
3731318	99	47	37,8	cyclictest	0	-21	swapper/1	09:36:11	1
3731318	99	47	37,6	cyclictest	3803726	-21	gcc	10:00:25	1
3731318	99	46	38,5	cyclictest	3705372	-21	kworker/u4:12+events_unbound	07:15:00	1
3731318	99	45	37,6	cyclictest	3800124	-21	timerwakeupswit	09:55:39	1
3731318	99	45	37,6	cyclictest	3800124	-21	timerwakeupswit	09:55:39	1
3731318	99	45	34,8	cyclictest	3745129	-21	ps	08:00:34	1
3731318	99	44	37,5	cyclictest	3882326	-21	kworker/u4:2+events_unbound	11:55:43	1
3731318	99	44	34,6	cyclictest	0	-21	swapper/1	08:30:01	1
3731318	99	44	33,8	cyclictest	3909687	-21	kworker/u4:7-rpciod	12:12:20	1
3731318	99	44	33,8	cyclictest	3866222	-21	kworker/u4:14-rpciod	11:45:12	1
3731318	99	43	37,4	cyclictest	3758846	-21	fschecks_count	08:55:19	1
3731318	99	43	36,5	cyclictest	3734760	-21	ntpq	07:20:33	1
3731318	99	43	35,5	cyclictest	3759896	-21	cut	09:00:15	1
3731318	99	43	34,7	cyclictest	3856684	-21	netstat	11:05:26	1
3731318	99	43	32,7	cyclictest	0	-21	swapper/1	09:30:23	1
3731318	99	42	34,6	cyclictest	0	-21	swapper/1	09:25:31	1
3731318	99	42	33,7	cyclictest	3836086	-21	grep	10:40:17	1
3731318	99	42	33,7	cyclictest	3754832	-21	aten_r7power_en	08:40:16	1
3731318	99	40	30,7	cyclictest	0	-21	swapper/1	09:05:14	1
3731318	99	40	28,9	cyclictest	0	-21	swapper/1	08:45:34	1
3731318	99	39	30,6	cyclictest	0	-21	swapper/1	07:40:16	1
3731318	99	36	29,5	cyclictest	0	-21	swapper/1	08:30:18	1
3731318	99	35	27,6	cyclictest	3731426	-21	latency_hist	07:10:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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