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 Mar 20, 2026 00:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
41179	99	115	96,6	cyclictest	118777	-21	kworker/u4:6+events_unbound	22:02:58	1
41177	99	90	77,10	cyclictest	53	-21	kswapd0	23:25:10	0
41179	99	87	79,6	cyclictest	88401	-21	kworker/u4:5+events_unbound	21:37:54	1
41179	99	86	78,6	cyclictest	180702	-21	kworker/u4:14+events_unbound	00:15:01	1
41177	99	84	57,5	cyclictest	53	-21	kswapd0	22:00:35	0
41179	99	79	71,6	cyclictest	180701	-21	kworker/u4:13+events_unbound	00:38:38	1
41179	99	78	68,8	cyclictest	154553	-21	kworker/u4:7+events_unbound	22:45:11	1
41179	99	74	67,5	cyclictest	11681	-21	kworker/u4:5+events_unbound	19:57:28	1
41177	99	74	57,4	cyclictest	53	-21	kswapd0	22:50:01	0
41177	99	71	63,6	cyclictest	110426	-21	kworker/u4:0+events_unbound	21:52:56	0
41179	99	70	62,6	cyclictest	176235	-21	kworker/u4:9+events_unbound	23:14:59	1
41179	99	70	58,9	cyclictest	53	-21	kswapd0	21:55:01	1
41177	99	69	61,6	cyclictest	150072	-21	kworker/u4:2+events_unbound	22:38:15	0
41179	99	68	57,9	cyclictest	180701	-21	kworker/u4:13+events_unbound	23:48:26	1
41177	99	66	1,51	cyclictest	170428	-21	ssh	23:00:25	0
41177	99	66	1,51	cyclictest	170428	-21	ssh	23:00:24	0
41177	99	65	59,4	cyclictest	128356	-21	kworker/u4:1+events_unbound	22:15:02	0
41177	99	65	57,6	cyclictest	110426	-21	kworker/u4:0+events_unbound	21:57:59	0
41177	99	65	57,5	cyclictest	233591	-21	kworker/u4:7+events_unbound	00:13:30	0
41179	99	64	56,6	cyclictest	198563	-21	kworker/u4:6+events_unbound	00:05:12	1
41177	99	64	53,8	cyclictest	176235	-21	kworker/u4:9+events_unbound	23:15:13	0
41179	99	62	54,6	cyclictest	53982	-21	kworker/u4:18+events_unbound	20:40:01	1
41179	99	62	54,6	cyclictest	53982	-21	kworker/u4:18+events_unbound	20:40:00	1
41177	99	62	54,6	cyclictest	53	-21	kswapd0	21:45:19	0
41179	99	60	52,6	cyclictest	215780	-21	kworker/u4:15+events_unbound	23:53:28	1
41179	99	60	52,6	cyclictest	180702	-21	kworker/u4:14+events_unbound	00:20:17	1
41179	99	59	50,7	cyclictest	203001	-21	kworker/u4:7+events_unbound	23:45:00	1
41177	99	59	52,5	cyclictest	65587	-21	kworker/u4:11+events_unbound	21:00:01	0
41177	99	59	51,6	cyclictest	154552	-21	kworker/u4:6+events_unbound	23:08:19	0
41177	99	59	51,6	cyclictest	132186	-21	kworker/u4:5+events_unbound	22:28:12	0
41177	99	59	50,7	cyclictest	41105	-21	kworker/u4:9+events_unbound	19:32:25	0
41179	99	58	50,6	cyclictest	41105	-21	kworker/u4:9+events_unbound	21:10:02	1
41179	99	58	38,6	cyclictest	64290	-21	kworker/u4:10+events_unbound	21:35:00	1
41177	99	58	51,5	cyclictest	165790	-21	/usr/sbin/munin	22:55:20	0
41179	99	57	48,7	cyclictest	378	-21	dbus-daemon	00:28:34	1
41179	99	57	46,8	cyclictest	145632	-21	kworker/u4:8+events_unbound	22:40:35	1
41177	99	57	49,5	cyclictest	123234	-21	kworker/u4:11+events_unbound	22:10:00	0
41179	99	56	48,6	cyclictest	0	-21	swapper/1	23:20:12	1
41177	99	56	48,6	cyclictest	60478	-21	kworker/u4:8+events_unbound	20:22:34	0
41177	99	56	48,6	cyclictest	178556	-21	ssh	23:10:15	0
41179	99	55	47,6	cyclictest	4156508	-21	kworker/u4:6+events_unbound	19:12:20	1
41179	99	55	36,14	cyclictest	174498	-21	fschecks_time	23:05:19	1
41177	99	55	49,4	cyclictest	215780	-21	kworker/u4:15+events_unbound	00:20:01	0
41177	99	55	46,7	cyclictest	41105	-21	kworker/u4:9+events_unbound	20:02:32	0
41177	99	55	46,6	cyclictest	150072	-21	kworker/u4:2+events_unbound	22:53:17	0
41177	99	55	42,7	cyclictest	0	-21	swapper/0	23:39:59	0
41177	99	54	45,7	cyclictest	242492	-21	kworker/u4:1+events_unbound	00:30:13	0
41179	99	53	43,6	cyclictest	166045	-21	sh	22:55:26	1
41179	99	53	37,5	cyclictest	128356	-21	kworker/u4:1+events_unbound	22:18:12	1
41179	99	52	45,5	cyclictest	143994	-21	/usr/sbin/munin	22:30:21	1
41179	99	52	45,5	cyclictest	139022	-21	acpi	22:25:12	1
41179	99	52	43,6	cyclictest	148575	-21	diskmemload	22:35:30	1
41179	99	52	42,7	cyclictest	0	-21	swapper/1	23:55:24	1
41177	99	52	41,7	cyclictest	242492	-21	kworker/u4:1+events_unbound	00:25:35	0
41179	99	51	44,5	cyclictest	76608	-21	latency_hist	21:15:01	1
41179	99	51	42,7	cyclictest	150072	-21	kworker/u4:2+events_unbound	23:00:35	1
41179	99	51	42,7	cyclictest	150072	-21	kworker/u4:2+events_unbound	23:00:34	1
41177	99	51	44,5	cyclictest	86146	-21	fschecks_time	21:25:20	0
41177	99	51	43,6	cyclictest	180702	-21	kworker/u4:14+events_unbound	00:20:21	0
41177	99	51	42,7	cyclictest	229964	-21	systemd	00:08:28	0
41177	99	51	41,7	cyclictest	188630	-21	unixbench_singl	23:20:38	0
41177	99	51	29,19	cyclictest	0	-21	swapper/0	23:50:35	0
41179	99	50	42,6	cyclictest	191711	-21	ssh	23:25:07	1
41179	99	50	41,7	cyclictest	103435	-21	latency_hist	21:45:01	1
41177	99	50	41,7	cyclictest	256354	-21	sshd	00:38:37	0
41177	99	50	41,6	cyclictest	64290	-21	kworker/u4:10+events_unbound	21:02:46	0
41177	99	50	40,8	cyclictest	156295	-21	idleruntime-cro	22:45:00	0
41177	99	50	40,7	cyclictest	210557	-21	unixbench_multi	23:45:40	0
41177	99	50	38,10	cyclictest	48831	-21	munin-run	19:40:00	0
41179	99	49	42,5	cyclictest	56320	-21	awk	20:05:36	1
41179	99	49	42,5	cyclictest	129899	-21	munin-run	22:15:00	1
41179	99	49	41,5	cyclictest	180701	-21	kworker/u4:13-rpciod	23:15:17	1
41177	99	49	42,5	cyclictest	99865	-21	ldconfig	21:40:25	0
41177	99	49	41,6	cyclictest	3988057	-21	kworker/u4:2+events_unbound	19:27:25	0
41177	99	49	39,8	cyclictest	218135	-21	sh	23:55:16	0
41177	99	49	39,7	cyclictest	53982	-21	kworker/u4:18-rpciod	20:05:18	0
41177	99	49	38,8	cyclictest	57089	-21	fschecks_time	20:10:20	0
41177	99	49	38,8	cyclictest	131385	-21	unixbench-2d	22:15:40	0
41177	99	49	28,18	cyclictest	66872	-21	cron	20:50:00	0
41177	99	48	40,5	cyclictest	204924	-21	aten2__	23:40:14	0
41177	99	48	27,19	cyclictest	49359	-21	fschecks_count	19:40:22	0
41179	99	47	40,5	cyclictest	45462	-21	fschecks_count	19:25:19	1
41179	99	47	40,5	cyclictest	222479	-21	apt-get	00:00:16	1
41179	99	47	37,8	cyclictest	116686	-21	munin-run	22:00:00	1
41179	99	47	36,8	cyclictest	86301	-21	gltestperf	21:25:21	1
41177	99	47	40,5	cyclictest	68126	-21	kworker/u4:14+events_unbound	21:17:02	0
41177	99	47	40,5	cyclictest	206846	-21	kworker/u4:9+events_unbound	00:00:43	0
41177	99	47	39,5	cyclictest	90634	-21	fschecks_time	21:30:21	0
41177	99	47	39,5	cyclictest	143705	-21	fschecks_count	22:30:18	0
41179	99	46	40,5	cyclictest	30080	-21	kworker/u4:10+events_unbound	19:25:01	1
41179	99	46	40,5	cyclictest	30080	-21	kworker/u4:10+events_unbound	19:25:00	1
41179	99	46	39,5	cyclictest	236700	-21	switchtime	00:15:38	1
41179	99	46	39,5	cyclictest	197144	-21	sendmail_mailqu	23:30:41	1
41179	99	46	36,7	cyclictest	56986	-21	fschecks_count	20:10:19	1
41179	99	46	36,7	cyclictest	138750	-21	latency_hist	22:25:01	1
41179	99	46	36,6	cyclictest	106428	-21	sshd	21:47:54	1
41177	99	46	39,5	cyclictest	73309	-21	mailstats	21:10:37	0
41177	99	46	37,7	cyclictest	67117	-21	aten_r7power_en	20:50:15	0
41177	99	46	37,7	cyclictest	63327	-21	aten_r7power_po	20:35:14	0
41177	99	46	37,7	cyclictest	63327	-21	aten_r7power_po	20:35:14	0
41177	99	46	37,7	cyclictest	138930	-21	latency_hist	22:25:01	0
41177	99	46	36,7	cyclictest	94759	-21	aten_r7power_cu	21:35:15	0
41179	99	45	39,4	cyclictest	121628	-21	df_abs	22:05:17	1
41179	99	45	35,7	cyclictest	67082	-21	aten2__	20:50:15	1
41177	99	45	39,4	cyclictest	196305	-21	aten_r7power_po	23:30:22	0
41177	99	45	38,5	cyclictest	54028	-21	munin-plugin-st	19:59:59	0
41177	99	45	35,7	cyclictest	62242	-21	fschecks_time	20:30:20	0
41177	99	45	24,18	cyclictest	0	-21	swapper/0	19:45:37	0
41179	99	44	36,6	cyclictest	43669	-21	kworker/u4:17+events_unbound	19:40:02	1
41179	99	44	33,8	cyclictest	200840	-21	fschecks_time	23:35:19	1
41177	99	44	38,4	cyclictest	41175	-21	cyclictest	19:22:21	0
41177	99	44	38,4	cyclictest	41175	-21	cyclictest	19:22:21	0
41177	99	44	36,6	cyclictest	42997	-21	gltestperf	19:15:20	0
41177	99	44	33,7	cyclictest	41105	-21	kworker/u4:9-rpciod	21:10:01	0
41177	99	44	26,15	cyclictest	0	-21	swapper/0	21:20:25	0
41179	99	43	36,5	cyclictest	42859	-21	grep	19:15:17	1
41179	99	43	36,5	cyclictest	41175	-21	cyclictest	21:15:25	1
41179	99	43	35,5	cyclictest	69446	-21	sendmail	21:00:00	1
41179	99	43	33,7	cyclictest	0	-21	swapper/1	19:30:17	1
41179	99	43	3,35	cyclictest	37	-21	kcompactd0	22:50:11	1
41177	99	43	35,6	cyclictest	64773	-21	fschecks_count	20:40:20	0
41177	99	43	35,6	cyclictest	60947	-21	basename	20:25:21	0
41179	99	42	34,6	cyclictest	31349	-21	kworker/u4:11+events_unbound	19:40:03	1
41179	99	42	34,5	cyclictest	0	-21	swapper/1	20:27:34	1
41177	99	42	35,5	cyclictest	42106	-21	cat	19:10:34	0
41177	99	42	34,5	cyclictest	51669	-21	grep	19:50:13	0
41179	99	41	35,4	cyclictest	81482	-21	wc	21:20:18	1
41179	99	41	34,5	cyclictest	70729	-21	munin-plugin-st	21:05:01	1
41179	99	41	34,5	cyclictest	249133	-21	fschecks_count	00:30:20	1
41179	99	41	34,4	cyclictest	66045	-21	fschecks_count	20:45:18	1
41179	99	41	32,7	cyclictest	59196	-21	latency_hist	20:20:01	1
41177	99	41	34,5	cyclictest	58206	-21	sed	20:15:18	0
41179	99	40	31,7	cyclictest	52715	-21	systemd	19:52:27	1
41179	99	40	29,7	cyclictest	0	-21	swapper/1	20:30:20	1
41179	99	39	30,6	cyclictest	0	-21	swapper/1	20:40:20	1
41179	99	39	30,6	cyclictest	0	-21	swapper/1	20:20:22	1
41179	99	38	31,5	cyclictest	0	-21	swapper/1	20:00:27	1
41179	99	37	28,6	cyclictest	0	-21	swapper/1	19:50:01	1
41179	99	36	22,11	cyclictest	41216	-21	ls	19:10:01	1
41177	99	27	20,4	cyclictest	0	-21	swapper/0	19:10:01	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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