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 Fri Aug 14, 2026 12:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
207707	99	104	97,5	cyclictest	230823	-21	kworker/u4:4+events_unbound	09:09:35	0
207707	99	104	97,5	cyclictest	230823	-21	kworker/u4:4+events_unbound	09:09:35	0
207707	99	100	93,5	cyclictest	209017	-21	kworker/u4:6+events_unbound	07:44:20	0
207707	99	91	84,5	cyclictest	209024	-21	kworker/u4:10+events_unbound	07:49:21	0
207707	99	88	82,4	cyclictest	209022	-21	kworker/u4:8+events_unbound	07:19:16	0
207707	99	87	80,5	cyclictest	198740	-21	kworker/u4:11+events_unbound	08:19:25	0
207708	99	75	67,6	cyclictest	290085	-21	kworker/u4:2+events_unbound	10:09:53	1
207707	99	70	62,6	cyclictest	388276	-21	kworker/u4:0+events_unbound	12:15:28	0
207707	99	69	62,5	cyclictest	308137	-21	kworker/u4:4+events_unbound	10:30:01	0
207707	99	66	47,17	cyclictest	243071	-21	sh	09:15:00	0
207708	99	62	55,5	cyclictest	388281	-21	kworker/u4:9+events_unbound	12:10:28	1
207708	99	61	54,5	cyclictest	263632	-21	kworker/u4:10+events_unbound	09:39:46	1
207708	99	60	48,9	cyclictest	378	-21	dbus-daemon	10:55:07	1
207707	99	59	40,16	cyclictest	0	-21	swapper/0	09:20:11	0
207707	99	59	38,14	cyclictest	53	-21	kswapd0	10:55:12	0
207707	99	58	51,5	cyclictest	357433	-21	kworker/u4:3+events_unbound	11:35:03	0
207707	99	58	48,8	cyclictest	378	-21	dbus-daemon	09:59:49	0
207708	99	57	45,9	cyclictest	231753	-21	ps	08:40:36	1
207708	99	57	45,8	cyclictest	0	-21	swapper/1	09:55:12	1
207707	99	57	51,4	cyclictest	197442	-21	kworker/u4:4+events_unbound	08:10:00	0
207707	99	57	48,5	cyclictest	385961	-21	ssh	11:55:09	0
207708	99	56	50,4	cyclictest	0	-21	swapper/1	09:44:47	1
207708	99	56	49,5	cyclictest	210051	-21	sendmail_mailqu	07:15:44	1
207707	99	56	40,13	cyclictest	0	-21	swapper/0	11:05:11	0
207708	99	55	47,5	cyclictest	207704	-21	cyclictest	10:10:28	1
207708	99	55	46,7	cyclictest	209022	-21	kworker/u4:8+events_unbound	07:14:14	1
207708	99	54	47,5	cyclictest	298074	-21	unixbench_multi	10:15:40	1
207708	99	54	46,6	cyclictest	373198	-21	/usr/sbin/munin	11:40:20	1
207707	99	54	33,18	cyclictest	0	-21	swapper/0	11:45:21	0
207708	99	53	46,5	cyclictest	414622	-21	kworker/u4:18+events_unbound	12:30:31	1
207708	99	53	46,5	cyclictest	275057	-21	sh	09:50:20	1
207707	99	53	42,8	cyclictest	350524	-21	aten2__	11:15:14	0
207708	99	52	45,5	cyclictest	243344	-21	/usr/sbin/munin	09:15:10	1
207708	99	52	44,5	cyclictest	301767	-21	gltestperf	10:20:22	1
207708	99	52	21,11	cyclictest	238543	-21	diskmemload	10:30:32	1
207707	99	52	45,5	cyclictest	219332	-21	kworker/u4:9+events_unbound	08:35:02	0
207707	99	52	41,8	cyclictest	207704	-21	cyclictest	09:45:24	0
207707	99	52	30,20	cyclictest	235126	-21	fschecks_count	08:55:23	0
207708	99	51	42,5	cyclictest	0	-21	swapper/1	10:55:02	1
207707	99	51	44,5	cyclictest	219333	-21	kworker/u4:14+events_unbound	08:00:03	0
207707	99	51	44,5	cyclictest	209017	-21	kworker/u4:6+events_unbound	07:14:16	0
207707	99	51	42,7	cyclictest	0	-21	swapper/0	12:25:30	0
207707	99	51	39,8	cyclictest	381670	-21	aten_r7power_en	11:50:15	0
207707	99	51	39,10	cyclictest	412232	-21	munin-run	12:25:00	0
207707	99	51	33,15	cyclictest	0	-21	swapper/0	10:35:19	0
207708	99	50	45,3	cyclictest	312655	-21	kworker/u4:7+events_unbound	10:35:02	1
207708	99	50	43,5	cyclictest	408220	-21	aten_r7power_en	12:20:17	1
207708	99	50	41,6	cyclictest	0	-21	swapper/1	11:10:35	1
207707	99	50	43,5	cyclictest	219373	-21	munin-plugin-st	07:55:00	0
207708	99	49	42,5	cyclictest	377811	-21	ld	11:45:25	1
207708	99	49	39,8	cyclictest	387073	-21	mailstats	11:55:43	1
207708	99	49	39,7	cyclictest	0	-21	swapper/1	09:25:17	1
207708	99	49	38,7	cyclictest	0	-21	swapper/1	11:50:34	1
207707	99	49	43,5	cyclictest	237231	-21	kworker/u4:7+events_unbound	09:15:03	0
207707	99	49	43,4	cyclictest	221899	-21	kworker/u4:2+events_unbound	08:05:04	0
207707	99	49	42,4	cyclictest	265986	-21	df_abs	09:40:17	0
207707	99	49	38,9	cyclictest	263628	-21	kworker/u4:3-rpciod	10:00:15	0
207707	99	49	29,18	cyclictest	0	-21	swapper/0	10:20:29	0
207708	99	48	40,5	cyclictest	0	-21	swapper/1	10:30:01	1
207707	99	48	42,4	cyclictest	359437	-21	aten2__	11:25:14	0
207707	99	48	42,4	cyclictest	227016	-21	kworker/u4:0+events_unbound	08:43:45	0
207707	99	48	41,5	cyclictest	292539	-21	aten_r7power_po	10:10:17	0
207707	99	48	41,5	cyclictest	207704	-21	cyclictest	11:10:48	0
207707	99	48	40,6	cyclictest	311378	-21	/usr/sbin/munin	10:30:39	0
207707	99	48	38,8	cyclictest	227546	-21	fschecks_time	08:25:19	0
207707	99	48	3,13	cyclictest	320106	-21	sh	10:40:38	0
207707	99	48	28,11	cyclictest	250053	-21	kworker/u4:0+events_unbound	09:33:58	0
207707	99	48	27,19	cyclictest	0	-21	swapper/0	09:50:33	0
207708	99	47	39,6	cyclictest	395234	-21	/usr/sbin/munin	12:05:21	1
207708	99	47	39,6	cyclictest	395234	-21	/usr/sbin/munin	12:05:21	1
207708	99	47	36,8	cyclictest	37	-21	kcompactd0	12:27:13	1
207708	99	47	36,8	cyclictest	271528	-21	/usr/sbin/munin	09:45:41	1
207707	99	47	40,5	cyclictest	417327	-21	/usr/sbin/munin	12:30:21	0
207707	99	47	40,5	cyclictest	233396	-21	kworker/u4:10+events_unbound	08:53:45	0
207707	99	47	39,5	cyclictest	355323	-21	fschecks_time	11:20:19	0
207707	99	47	38,7	cyclictest	373137	-21	fschecks_time	11:40:19	0
207707	99	47	37,8	cyclictest	297996	-21	timerwakeupswit	10:15:39	0
207707	99	47	37,7	cyclictest	328316	-21	df_abs	10:50:17	0
207708	99	46	39,5	cyclictest	404173	-21	cut	12:15:22	1
207708	99	46	39,5	cyclictest	391208	-21	ldconfig	12:00:31	1
207708	99	46	39,5	cyclictest	360483	-21	wc	11:25:37	1
207708	99	46	38,5	cyclictest	354780	-21	latency_hist	11:20:02	1
207708	99	46	37,7	cyclictest	214255	-21	cron	07:35:00	1
207708	99	46	37,6	cyclictest	0	-21	swapper/1	11:35:19	1
207708	99	46	36,8	cyclictest	249283	-21	unixbench_singl	09:20:45	1
207708	99	46	36,8	cyclictest	226079	-21	aten_r7power_vo	08:20:19	1
207708	99	46	34,10	cyclictest	388281	-21	kworker/u4:9-rpciod	12:35:22	1
207707	99	46	39,5	cyclictest	323768	-21	aten_r7power_vo	10:45:16	0
207707	99	46	38,5	cyclictest	226268	-21	fschecks_time	08:20:21	0
207707	99	46	38,5	cyclictest	211020	-21	gltestperf	07:20:21	0
207707	99	46	37,7	cyclictest	390757	-21	/usr/sbin/munin	12:00:20	0
207707	99	46	37,6	cyclictest	261689	-21	fschecks_time	09:35:20	0
207707	99	46	34,9	cyclictest	252769	-21	fschecks_count	09:25:22	0
207707	99	46	34,7	cyclictest	256	50	irq/23-42890000.ethernet	10:05:15	0
207708	99	45	37,6	cyclictest	284289	-21	ntpq	10:00:28	1
207708	99	45	36,7	cyclictest	355515	-21	kernelversion	11:20:21	1
207708	99	45	36,7	cyclictest	219296	-21	unixbench_singl	07:50:38	1
207708	99	45	34,9	cyclictest	235719	-21	timerandwakeup	08:55:41	1
207707	99	45	38,5	cyclictest	395736	-21	sshd	12:05:37	0
207707	99	45	38,5	cyclictest	395736	-21	sshd	12:05:37	0
207707	99	45	37,5	cyclictest	236451	-21	fschecks_time	09:00:19	0
207707	99	45	36,7	cyclictest	228829	-21	fschecks_time	08:30:20	0
207707	99	45	33,8	cyclictest	0	-21	swapper/0	11:00:39	0
207708	99	44	4,31	cyclictest	1073	-21	snmpd	08:10:25	1
207708	99	44	37,5	cyclictest	319391	-21	grep	10:40:17	1
207708	99	44	37,5	cyclictest	237057	-21	timerwakeupswit	09:00:37	1
207708	99	44	37,5	cyclictest	207808	-21	latency_hist	07:10:01	1
207708	99	44	34,7	cyclictest	223328	-21	latency_hist	08:10:01	1
207708	99	44	33,8	cyclictest	337490	-21	gltestperf	11:00:22	1
207708	99	44	33,7	cyclictest	0	-21	swapper/1	09:30:30	1
207707	99	44	37,5	cyclictest	422634	-21	unixbench_singl	12:35:42	0
207707	99	44	37,5	cyclictest	364306	-21	gltestperf	11:30:20	0
207707	99	44	35,7	cyclictest	219603	-21	aten_r7power_en	07:55:17	0
207708	99	43	37,4	cyclictest	324439	-21	ssh	10:45:32	1
207708	99	43	37,4	cyclictest	228327	-21	idleruntime-cro	08:30:00	1
207708	99	43	36,5	cyclictest	228743	-21	fschecks_count	08:30:19	1
207708	99	43	36,5	cyclictest	207639	-21	kworker/u4:1-rpciod	07:35:20	1
207708	99	43	35,6	cyclictest	198740	-21	kworker/u4:11+rpciod	08:52:33	1
207708	99	43	34,6	cyclictest	230648	-21	timerwakeupswit	08:35:41	1
207707	99	43	36,5	cyclictest	232979	-21	kthreadd	08:45:33	0
207707	99	43	35,6	cyclictest	399457	-21	cpu	12:10:17	0
207708	99	42	36,4	cyclictest	225276	-21	ntp_states	08:15:32	1
207708	99	42	35,5	cyclictest	239111	-21	df_abs	09:10:17	1
207708	99	42	35,5	cyclictest	212800	-21	timerwakeupswit	07:25:41	1
207708	99	42	35,5	cyclictest	209024	-21	kworker/u4:10-rpciod	07:45:01	1
207708	99	42	34,5	cyclictest	0	-21	swapper/1	08:00:16	1
207708	99	42	33,7	cyclictest	342742	-21	timerwakeupswit	11:05:38	1
207708	99	42	31,7	cyclictest	0	-21	swapper/1	08:00:00	1
207707	99	42	35,5	cyclictest	207771	-21	latency_hist	07:10:01	0
207707	99	42	35,5	cyclictest	207639	-21	kworker/u4:1+events_unbound	07:25:03	0
207707	99	42	34,5	cyclictest	197442	-21	kworker/u4:4-rpciod	07:35:39	0
207708	99	41	33,5	cyclictest	363955	-21	aten_r7power_en	11:30:16	1
207708	99	40	31,6	cyclictest	209023	-21	kworker/u4:9-rpciod	07:20:24	1
207707	99	40	30,7	cyclictest	0	-21	swapper/0	07:30:14	0
207708	99	38	26,9	cyclictest	0	-21	swapper/1	09:05:35	1
207708	99	38	26,9	cyclictest	0	-21	swapper/1	09:05:35	1
207708	99	37	29,5	cyclictest	0	-21	swapper/1	08:45:17	1
207708	99	35	22,10	cyclictest	0	-21	swapper/1	07:45:39	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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