OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #7, slot #2

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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 Thu Aug 06, 2026 00:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1667685	99	114	104,6	cyclictest	1676684	-21	kworker/u4:2+events_unbound	20:05:14	1
1667685	99	101	95,4	cyclictest	1793720	-21	kworker/u4:1+events_unbound	23:05:51	1
1667684	99	97	12,82	cyclictest	0	-21	swapper/0	19:09:59	0
1667685	99	95	49,4	cyclictest	0	-21	swapper/1	22:20:16	1
1667685	99	88	80,6	cyclictest	1732443	-21	kworker/u4:4+events_unbound	21:50:35	1
1667684	99	82	29,36	cyclictest	0	-21	swapper/0	22:55:35	0
1667685	99	81	72,7	cyclictest	1668909	-21	kworker/u4:5+events_unbound	20:45:22	1
1667685	99	81	70,7	cyclictest	1680497	-21	kworker/u4:20+events_unbound	20:15:18	1
1667684	99	78	1,48	cyclictest	1744083	-21	ntpq	22:00:36	0
1667684	99	77	26,38	cyclictest	0	-21	swapper/0	00:25:23	0
1667685	99	76	70,4	cyclictest	1736925	-21	kworker/u4:5+events_unbound	22:00:38	1
1667685	99	76	67,6	cyclictest	1868003	-21	kworker/u4:0+events_unbound	00:23:40	1
1667685	99	76	67,6	cyclictest	1868003	-21	kworker/u4:0+events_unbound	00:23:40	1
1667684	99	75	2,56	cyclictest	1818211	-21	ssh	23:25:18	0
1667684	99	75	21,30	cyclictest	256	50	irq/23-42890000.ethernet	23:15:31	0
1667684	99	74	2,51	cyclictest	1865862	-21	apt-get	00:20:15	0
1667684	99	74	2,51	cyclictest	1865862	-21	apt-get	00:20:14	0
1667685	99	73	65,6	cyclictest	1763138	-21	kworker/u4:9+events_unbound	22:50:48	1
1667684	99	73	60,9	cyclictest	1844296	-21	basename	23:55:19	0
1667684	99	73	40,31	cyclictest	1748602	-21	mailstats	22:05:37	0
1667685	99	72	62,8	cyclictest	1686994	-21	kworker/u4:1+events_unbound	20:30:19	1
1667684	99	72	43,26	cyclictest	0	-21	swapper/0	21:10:14	0
1667685	99	71	61,7	cyclictest	1732443	-21	kworker/u4:4+events_unbound	22:10:40	1
1667684	99	71	2,46	cyclictest	1721592	-21	grep	21:35:23	0
1667684	99	70	26,42	cyclictest	1774312	-21	fschecks_count	22:35:21	0
1667684	99	70	1,45	cyclictest	1840447	-21	ntpq	23:50:33	0
1667684	99	67	25,39	cyclictest	0	-21	swapper/0	22:25:24	0
1667684	99	67	17,28	cyclictest	0	-21	swapper/0	00:35:02	0
1667684	99	66	35,28	cyclictest	1695102	-21	fschecks_count	20:55:21	0
1667684	99	66	1,56	cyclictest	1697404	-21	apt-get	21:05:14	0
1667684	99	66	1,46	cyclictest	1668942	-21	apt-get	19:15:12	0
1667684	99	65	56,6	cyclictest	1676685	-21	kworker/u4:3+events_unbound	20:35:19	0
1667684	99	65	36,26	cyclictest	1819839	-21	kworker/u4:4-rpciod	23:35:00	0
1667684	99	65	1,45	cyclictest	1726306	-21	ntpq	21:40:31	0
1667685	99	64	54,8	cyclictest	1692098	-21	kworker/u4:4+events_unbound	20:50:24	1
1667685	99	64	54,8	cyclictest	1684333	-21	kworker/u4:12+events_unbound	20:25:19	1
1667685	99	64	44,17	cyclictest	0	-21	swapper/1	21:10:36	1
1667685	99	64	44,14	cyclictest	1685897	-21	/usr/sbin/munin	20:20:11	1
1667684	99	64	3,57	cyclictest	1856964	-21	rm	00:10:10	0
1667684	99	64	3,54	cyclictest	1691023	-21	apt-get	20:40:12	0
1667685	99	63	53,7	cyclictest	1762491	-21	kworker/u4:3+events_unbound	22:50:00	1
1667684	99	63	55,6	cyclictest	1734470	-21	/usr/sbin/munin	21:50:16	0
1667684	99	63	3,43	cyclictest	1849070	-21	ntpq	00:00:33	0
1667684	99	63	2,57	cyclictest	1800375	-21	apt-get	23:05:13	0
1667684	99	63	12,31	cyclictest	0	-21	swapper/0	21:25:27	0
1667684	99	62	34,26	cyclictest	1877057	-21	kworker/u4:12-rpciod	00:35:28	0
1667684	99	62	31,28	cyclictest	0	-21	swapper/0	23:10:44	0
1667684	99	62	31,27	cyclictest	0	-21	swapper/0	00:15:18	0
1667684	99	61	3,52	cyclictest	1814242	-21	ntpq	23:20:24	0
1667684	99	61	3,41	cyclictest	1667681	-21	cyclictest	20:15:24	0
1667684	99	61	31,27	cyclictest	0	-21	swapper/0	19:35:34	0
1667684	99	61	29,27	cyclictest	0	-21	swapper/0	20:00:16	0
1667684	99	61	28,29	cyclictest	0	-21	swapper/0	20:25:16	0
1667684	99	61	2,53	cyclictest	1671773	-21	apt-get	19:25:12	0
1667685	99	60	51,7	cyclictest	1722442	-21	unixbench_singl	21:35:43	1
1667684	99	60	2,54	cyclictest	1835811	-21	ssh	23:45:20	0
1667684	99	60	2,53	cyclictest	1683257	-21	apt-get	20:10:12	0
1667684	99	60	24,34	cyclictest	1778935	-21	kernelversion	22:40:23	0
1667685	99	59	51,6	cyclictest	1793720	-21	kworker/u4:1+events_unbound	23:00:49	1
1667684	99	59	5,44	cyclictest	1730904	-21	ssh	21:45:37	0
1667684	99	59	41,13	cyclictest	1800218	-21	latency_hist	23:05:02	0
1667684	99	59	31,25	cyclictest	0	-21	swapper/0	22:15:34	0
1667684	99	59	30,27	cyclictest	0	-21	swapper/0	21:30:48	0
1667684	99	59	28,28	cyclictest	1677236	-21	gltestperf	19:45:20	0
1667684	99	59	28,28	cyclictest	1677236	-21	gltestperf	19:45:19	0
1667684	99	59	26,30	cyclictest	1827055	-21	gltestperf	23:35:21	0
1667684	99	59	2,53	cyclictest	1681992	-21	apt-get	20:05:16	0
1667684	99	59	25,30	cyclictest	0	-21	swapper/0	19:50:29	0
1667684	99	59	1,47	cyclictest	0	-21	swapper/0	22:45:18	0
1667684	99	59	12,25	cyclictest	53	-21	kswapd0	00:06:57	0
1667684	99	58	3,52	cyclictest	1830921	-21	apt-get	23:40:10	0
1667684	99	58	3,51	cyclictest	1689119	-21	ntpq	20:30:34	0
1667684	99	58	28,27	cyclictest	0	-21	swapper/0	21:15:24	0
1667684	99	58	26,29	cyclictest	0	-21	swapper/0	19:40:44	0
1667684	99	58	26,27	cyclictest	0	-21	swapper/0	20:45:15	0
1667684	99	58	25,30	cyclictest	0	-21	swapper/0	19:10:38	0
1667684	99	58	24,31	cyclictest	1696370	-21	fschecks_count	21:00:17	0
1667684	99	58	2,41	cyclictest	1770448	-21	ntpq	22:30:36	0
1667685	99	57	47,7	cyclictest	1697203	-21	kworker/u4:4+events_unbound	21:20:30	1
1667684	99	57	28,26	cyclictest	0	-21	swapper/0	22:20:16	0
1667684	99	57	27,27	cyclictest	1739289	-21	sed	21:55:24	0
1667684	99	57	2,51	cyclictest	1791244	-21	latency_hist	22:55:00	0
1667684	99	57	23,31	cyclictest	1680539	-21	munin-run	20:00:01	0
1667684	99	57	1,50	cyclictest	1686519	-21	ntpq	20:20:34	0
1667685	99	56	49,5	cyclictest	1763138	-21	kworker/u4:9+events_unbound	22:40:44	1
1667685	99	56	43,9	cyclictest	1668908	-21	kworker/u4:4+events_unbound	20:00:15	1
1667685	99	56	38,12	cyclictest	1839611	-21	apt-get	23:50:14	1
1667684	99	56	2,49	cyclictest	1751968	-21	apt-get	22:10:12	0
1667684	99	56	2,48	cyclictest	1694143	-21	ntpq	20:50:25	0
1667685	99	55	47,4	cyclictest	0	-21	swapper/1	22:35:13	1
1667685	99	55	42,7	cyclictest	0	-21	swapper/1	22:55:37	1
1667685	99	55	39,10	cyclictest	1666410	-21	kworker/u4:0-rpciod	19:10:37	1
1667685	99	55	35,10	cyclictest	1765222	-21	sh	22:25:12	1
1667684	99	55	1,51	cyclictest	1671080	-21	ntpq	19:20:25	0
1667684	99	55	1,50	cyclictest	1673674	-21	ntpq	19:30:29	0
1667685	99	54	47,5	cyclictest	1725963	-21	/usr/sbin/munin	21:40:20	1
1667685	99	54	46,6	cyclictest	1694638	-21	kworker/u4:8+events_unbound	21:15:04	1
1667685	99	54	44,7	cyclictest	1850748	-21	kworker/u4:11+events_unbound	00:05:39	1
1667685	99	54	40,7	cyclictest	1676707	-21	kworker/u4:11	19:45:00	1
1667685	99	54	34,6	cyclictest	1705422	-21	kworker/u4:2+events_unbound	21:30:32	1
1667685	99	54	1,42	cyclictest	1836124	-21	ssh	23:45:32	1
1667684	99	54	1,49	cyclictest	1708561	-21	ntpq	21:20:29	0
1667685	99	53	46,5	cyclictest	1807223	-21	kworker/u4:9+events_unbound	23:20:02	1
1667685	99	53	2,36	cyclictest	1861420	-21	rm	00:15:14	1
1667685	99	52	45,5	cyclictest	1691457	-21	gltestperf	20:40:19	1
1667685	99	52	43,6	cyclictest	1813801	-21	cpu	23:20:16	1
1667685	99	50	43,5	cyclictest	1879313	-21	/usr/sbin/munin	00:35:17	1
1667685	99	50	39,8	cyclictest	53	-21	kswapd0	21:30:00	1
1667685	99	49	42,5	cyclictest	1784719	-21	kworker/u4:8+events_unbound	23:41:01	1
1667685	99	49	41,5	cyclictest	1678897	-21	sendmail_mailqu	19:50:37	1
1667685	99	49	39,8	cyclictest	624	-21	munin-node	19:20:20	1
1667685	99	48	40,5	cyclictest	1758643	-21	kworker/u4:0+rpciod	22:30:38	1
1667685	99	48	38,7	cyclictest	37	-21	kcompactd0	21:45:38	1
1667685	99	48	37,8	cyclictest	1760558	-21	diskmemload	22:20:01	1
1667685	99	47	42,4	cyclictest	1668911	-21	kworker/u4:8+events_unbound	19:15:03	1
1667685	99	47	40,5	cyclictest	1875651	-21	ld	00:30:36	1
1667685	99	47	39,6	cyclictest	1672845	-21	kworker/u4:16+events_unbound	19:30:08	1
1667685	99	46	40,4	cyclictest	1808938	-21	awk	23:15:00	1
1667685	99	46	39,5	cyclictest	1871403	-21	timerandwakeup	00:25:36	1
1667685	99	46	37,5	cyclictest	1811656	-21	kworker/u4:13-rpciod	23:35:31	1
1667685	99	46	36,7	cyclictest	0	-21	swapper/1	23:30:17	1
1667685	99	46	35,7	cyclictest	0	-21	swapper/1	23:55:13	1
1667685	99	45	37,6	cyclictest	1677956	-21	kworker/u4:9+events_unbound	21:05:29	1
1667685	99	45	34,9	cyclictest	0	-21	swapper/1	22:05:32	1
1667685	99	44	37,5	cyclictest	1818645	-21	ssh	23:25:27	1
1667685	99	44	36,5	cyclictest	1676911	-21	grep	19:45:15	1
1667685	99	44	36,5	cyclictest	1676911	-21	grep	19:45:15	1
1667685	99	44	29,11	cyclictest	1857041	-21	basename	00:10:14	1
1667685	99	43	37,4	cyclictest	1677956	-21	kworker/u4:9-rpciod	20:55:21	1
1667685	99	43	37,4	cyclictest	1671754	-21	systemd	19:25:05	1
1667685	99	43	36,5	cyclictest	1689974	-21	fschecks_count	20:35:19	1
1667685	99	43	33,8	cyclictest	1694637	-21	kworker/u4:7+rpciod	21:00:26	1
1667685	99	42	35,5	cyclictest	1667681	-21	cyclictest	20:10:16	1
1667685	99	42	33,7	cyclictest	1679666	-21	fschecks_count	19:55:19	1
1667685	99	42	33,6	cyclictest	1833107	-21	kworker/u4:5-xprtiod	00:00:38	1
1667685	99	42	20,7	cyclictest	1668909	-21	kworker/u4:5+events_unbound	19:37:46	1
1667685	99	41	6,25	cyclictest	1738835	-21	ssh	21:55:18	1
1667685	99	24	16,5	cyclictest	1667790	-21	latency_hist	19:10:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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