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 Wed Dec 31, 2025 00:44:12)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3242801	99	99	89,7	cyclictest	3313287	-21	kworker/u4:8+events_unbound	22:07:10	0
3242802	99	97	45,38	cyclictest	54	-21	kswapd0	23:40:15	1
3242801	99	94	62,29	cyclictest	54	-21	kswapd0	22:10:10	0
3242801	99	90	50,10	cyclictest	54	-21	kswapd0	00:15:13	0
3242801	99	87	79,6	cyclictest	3370700	-21	kworker/u4:7+events_unbound	23:42:26	0
3242801	99	81	11,42	cyclictest	3242778	-21	munin-run	19:10:00	0
3242801	99	76	67,7	cyclictest	54	-21	kswapd0	21:20:10	0
3242802	99	74	4,64	cyclictest	3435743	-21	ps	00:25:38	1
3242802	99	74	4,64	cyclictest	3435743	-21	ps	00:25:38	1
3242801	99	73	66,5	cyclictest	3263045	-21	kworker/u4:5+events_unbound	20:37:00	0
3242802	99	71	26,25	cyclictest	0	-21	swapper/1	21:35:33	1
3242802	99	71	20,30	cyclictest	0	-21	swapper/1	22:45:34	1
3242802	99	70	63,5	cyclictest	3420534	-21	kworker/u4:5+events_unbound	00:12:34	1
3242802	99	70	63,5	cyclictest	3420534	-21	kworker/u4:5+events_unbound	00:12:33	1
3242802	99	70	35,32	cyclictest	3373802	-21	timerandwakeup	23:10:37	1
3242801	99	69	50,17	cyclictest	3420534	-21	kworker/u4:5+events_unbound	00:09:43	0
3242802	99	67	58,7	cyclictest	3416310	-21	kworker/u4:2+events_unbound	00:17:34	1
3242802	99	67	35,29	cyclictest	37	-21	kcompactd0	23:28:18	1
3242802	99	66	57,7	cyclictest	3366510	-21	kworker/u4:8+events_unbound	23:02:47	1
3242802	99	66	3,9	cyclictest	3401584	-21	ssh	23:45:16	1
3242802	99	66	2,17	cyclictest	3327362	-21	apt-get	22:15:13	1
3242801	99	66	53,8	cyclictest	3356784	-21	ld	22:50:26	0
3242802	99	65	7,54	cyclictest	3439636	-21	ssh	00:30:32	1
3242802	99	64	4,55	cyclictest	3291145	-21	ntpq	21:30:31	1
3242802	99	64	4,49	cyclictest	3418893	-21	ssh	00:05:26	1
3242802	99	64	32,29	cyclictest	3242797	-21	cyclictest	22:08:52	1
3242801	99	64	54,6	cyclictest	3379155	-21	kworker/u4:5+events_unbound	23:22:21	0
3242801	99	64	54,6	cyclictest	3379155	-21	kworker/u4:5+events_unbound	23:22:21	0
3242802	99	63	5,54	cyclictest	3282720	-21	ntpq	21:20:29	1
3242802	99	63	32,29	cyclictest	3366510	-21	kworker/u4:8-rpciod	23:35:40	1
3242802	99	63	30,29	cyclictest	37	-21	kcompactd0	22:32:44	1
3242801	99	63	53,8	cyclictest	3287300	-21	timerwakeupswit	21:25:38	0
3242802	99	62	31,28	cyclictest	3361113	-21	proc_pri	22:55:37	1
3242802	99	62	1,12	cyclictest	3263789	-21	ntpq	20:30:26	1
3242801	99	62	54,6	cyclictest	3372698	-21	acpi	23:10:11	0
3242801	99	62	54,6	cyclictest	3242797	-21	cyclictest	22:31:38	0
3242801	99	62	53,6	cyclictest	3412067	-21	kworker/u4:11+events_unbound	23:57:28	0
3242802	99	61	5,53	cyclictest	3389177	-21	ssh	23:30:11	1
3242802	99	61	30,28	cyclictest	0	-21	swapper/1	22:35:21	1
3242802	99	61	29,29	cyclictest	0	-21	swapper/1	22:00:23	1
3242802	99	61	29,29	cyclictest	0	-21	swapper/1	22:00:23	1
3242801	99	61	44,15	cyclictest	3366510	-21	kworker/u4:8+events_unbound	23:05:18	0
3242802	99	60	3,16	cyclictest	3410561	-21	ntpq	23:55:27	1
3242802	99	60	2,16	cyclictest	3261278	-21	ntpq	20:20:24	1
3242802	99	60	2,15	cyclictest	3250030	-21	ps	19:35:37	1
3242802	99	59	2,8	cyclictest	3311700	-21	ssh	21:55:34	1
3242802	99	59	28,29	cyclictest	0	-21	swapper/1	19:30:25	1
3242802	99	59	27,30	cyclictest	0	-21	swapper/1	22:20:24	1
3242802	99	59	27,29	cyclictest	0	-21	swapper/1	22:10:32	1
3242802	99	59	2,53	cyclictest	3377178	-21	fschecks_count	23:15:19	1
3242802	99	59	2,53	cyclictest	3287064	-21	ps	21:25:36	1
3242802	99	59	2,17	cyclictest	3278328	-21	ssh	21:15:22	1
3242802	99	59	16,24	cyclictest	3273259	-21	diskmemload	00:00:45	1
3242802	99	58	29,27	cyclictest	3381477	-21	gltestperf	23:20:20	1
3242802	99	58	29,27	cyclictest	3381477	-21	gltestperf	23:20:20	1
3242802	99	58	1,5	cyclictest	3356125	-21	ssh	22:50:14	1
3242802	99	57	31,24	cyclictest	3283994	-21	kworker/u4:0-xprtiod	21:50:35	1
3242802	99	57	27,28	cyclictest	0	-21	swapper/1	00:20:22	1
3242802	99	57	26,29	cyclictest	0	-21	swapper/1	21:40:37	1
3242802	99	57	26,28	cyclictest	3444178	-21	sh	00:35:39	1
3242802	99	57	26,27	cyclictest	0	-21	swapper/1	20:25:15	1
3242802	99	57	23,30	cyclictest	3247965	-21	latency_hist	19:30:01	1
3242802	99	57	2,15	cyclictest	3348595	-21	ssh	22:40:26	1
3242802	99	57	2,13	cyclictest	3244750	-21	ntpq	19:15:23	1
3242802	99	57	1,4	cyclictest	3335662	-21	ssh	22:25:15	1
3242802	99	57	14,38	cyclictest	3302803	-21	wget	21:45:19	1
3242801	99	57	6,41	cyclictest	3336369	-21	sshd	22:25:29	0
3242801	99	57	44,11	cyclictest	3353912	-21	kworker/u4:2+events_unbound	23:01:00	0
3242801	99	56	49,5	cyclictest	3445080	-21	kworker/u4:0+events_unbound	00:37:59	0
3242801	99	56	42,11	cyclictest	3415263	-21	timerwakeupswit	00:00:43	0
3242801	99	56	34,12	cyclictest	0	-21	swapper/0	19:35:11	0
3242802	99	55	4,7	cyclictest	3270183	-21	ntpq	20:55:27	1
3242802	99	55	2,14	cyclictest	3254972	-21	ntpq	19:55:29	1
3242802	99	55	1,13	cyclictest	3267664	-21	ntpq	20:45:28	1
3242801	99	55	46,7	cyclictest	3250400	-21	kworker/u4:3+events_unbound	19:45:01	0
3242802	99	54	3,6	cyclictest	3246084	-21	ntpq	19:20:28	1
3242802	99	54	26,25	cyclictest	0	-21	swapper/1	23:05:41	1
3242802	99	54	2,12	cyclictest	3271543	-21	ntpq	21:00:32	1
3242802	99	54	1,12	cyclictest	3265226	-21	ntp_states	20:35:36	1
3242802	99	54	10,41	cyclictest	1068	-21	snmpd	20:11:08	1
3242802	99	53	3,6	cyclictest	3253743	-21	ntpq	19:50:28	1
3242802	99	53	3,46	cyclictest	3266421	-21	ntpq	20:40:27	1
3242802	99	53	2,6	cyclictest	3257556	-21	ntpq	20:05:30	1
3242802	99	53	2,5	cyclictest	3252479	-21	ntpq	19:45:29	1
3242802	99	53	23,27	cyclictest	0	-21	swapper/1	21:10:31	1
3242802	99	53	2,14	cyclictest	3272143	-21	/usr/sbin/munin	21:05:40	1
3242801	99	53	46,5	cyclictest	3295159	-21	/usr/sbin/munin	21:35:29	0
3242801	99	53	45,6	cyclictest	3242797	-21	cyclictest	22:00:37	0
3242801	99	53	45,6	cyclictest	3242797	-21	cyclictest	22:00:37	0
3242801	99	53	37,5	cyclictest	3436715	-21	kworker/u4:15+events_unbound	00:27:36	0
3242801	99	53	37,5	cyclictest	3436715	-21	kworker/u4:15+events_unbound	00:27:35	0
3242802	99	52	3,6	cyclictest	3256276	-21	ntpq	20:00:29	1
3242802	99	52	2,7	cyclictest	3243562	-21	ntpq	19:10:30	1
3242802	99	52	1,8	cyclictest	3406368	-21	ssh	23:50:25	1
3242801	99	52	45,5	cyclictest	3390353	-21	unixbench-2d	23:30:39	0
3242801	99	52	45,5	cyclictest	3290871	-21	gltestperf	21:30:21	0
3242801	99	52	43,7	cyclictest	3278303	-21	/usr/sbin/munin	21:15:21	0
3242802	99	51	3,5	cyclictest	3251173	-21	ntpq	19:40:27	1
3242802	99	51	2,6	cyclictest	3260012	-21	ntpq	20:15:29	1
3242801	99	51	43,6	cyclictest	3382769	-21	kworker/u4:9+events_unbound	23:25:35	0
3242801	99	51	43,6	cyclictest	3328521	-21	/usr/sbin/munin	22:15:39	0
3242801	99	51	43,6	cyclictest	3292454	-21	kworker/u4:8+events_unbound	21:42:00	0
3242801	99	51	43,6	cyclictest	3240256	-21	kworker/u4:1+events_unbound	19:11:49	0
3242801	99	51	42,7	cyclictest	3296562	-21	kworker/u4:4+events_unbound	21:55:07	0
3242801	99	51	36,12	cyclictest	0	-21	swapper/0	19:35:00	0
3242801	99	51	32,17	cyclictest	0	-21	swapper/0	22:40:42	0
3242802	99	50	2,4	cyclictest	3268368	-21	apt-get	20:50:16	1
3242801	99	50	42,6	cyclictest	3374916	-21	kworker/u4:1+events_unbound	23:20:00	0
3242801	99	50	40,7	cyclictest	3431400	-21	ssh	00:20:28	0
3242802	99	49	15,30	cyclictest	3242877	-21	latency_hist	19:10:01	1
3242801	99	49	42,5	cyclictest	3424819	-21	sshd	00:12:32	0
3242801	99	49	42,5	cyclictest	3424819	-21	sshd	00:12:32	0
3242801	99	49	41,6	cyclictest	3241459	-21	kworker/u4:4-rpciod	19:15:15	0
3242801	99	49	36,9	cyclictest	3395833	-21	rm	23:37:47	0
3242801	99	49	30,17	cyclictest	3274227	-21	ntpq	21:10:27	0
3242801	99	48	41,5	cyclictest	3344051	-21	df_abs	22:35:16	0
3242801	99	48	40,5	cyclictest	3258014	-21	kworker/u4:1	20:10:00	0
3242801	99	47	39,6	cyclictest	3256615	-21	unixbench-2d	20:00:36	0
3242801	99	47	32,13	cyclictest	3439702	-21	ld	00:30:35	0
3242801	99	47	31,13	cyclictest	3255465	-21	cron	20:00:00	0
3242801	99	46	37,7	cyclictest	3260770	-21	aten_r7power_cu	20:20:15	0
3242801	99	46	37,7	cyclictest	3252019	-21	aten_r7power_vo	19:45:18	0
3242801	99	46	20,22	cyclictest	0	-21	swapper/0	19:25:00	0
3242801	99	45	37,6	cyclictest	3352352	-21	/usr/sbin/munin	22:45:20	0
3242801	99	45	35,5	cyclictest	0	-21	swapper/0	20:30:01	0
3242801	99	45	34,7	cyclictest	0	-21	swapper/0	21:50:25	0
3242801	99	45	31,10	cyclictest	3259273	-21	ls	20:15:00	0
3242801	99	44	37,5	cyclictest	3331516	-21	aten2__	22:20:15	0
3242801	99	44	37,5	cyclictest	3272003	-21	awk	21:05:00	0
3242801	99	44	37,5	cyclictest	3267378	-21	fschecks_count	20:45:22	0
3242801	99	44	24,17	cyclictest	0	-21	swapper/0	23:45:28	0
3242801	99	44	2,18	cyclictest	3270716	-21	modprobe	20:59:59	0
3242801	99	43	36,6	cyclictest	3246832	-21	aten_r7power_en	19:25:15	0
3242801	99	43	36,5	cyclictest	3406858	-21	timerwakeupswit	23:50:39	0
3242801	99	43	36,5	cyclictest	3268688	-21	fschecks_time	20:50:21	0
3242801	99	43	36,5	cyclictest	3251693	-21	kworker/u4:15+events_unbound	20:16:57	0
3242801	99	43	32,9	cyclictest	3263557	-21	fschecks_time	20:30:21	0
3242801	99	43	32,7	cyclictest	0	-21	swapper/0	22:55:36	0
3242801	99	41	34,5	cyclictest	3265971	-21	aten_r7power_vo	20:40:17	0
3242801	99	41	32,7	cyclictest	3272259	-21	aten_r7power_po	21:05:16	0
3242801	99	41	32,6	cyclictest	0	-21	swapper/0	21:45:33	0
3242801	99	40	29,7	cyclictest	0	-21	swapper/0	19:50:36	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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