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 376 highest latencies:

System rack7slot2.osadl.org (updated Tue Jun 09, 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
2016655	99	139	117,7	cyclictest	2119459	-21	kworker/u4:6+events_unbound	22:43:00	0
2016655	99	118	101,7	cyclictest	2080512	-21	kworker/u4:2+events_unbound	22:12:51	0
2016655	99	106	98,6	cyclictest	2132659	-21	kworker/u4:5+events_unbound	23:03:03	0
2016655	99	99	92,5	cyclictest	2184562	-21	kworker/u4:0+events_unbound	23:48:12	0
2016655	99	98	79,8	cyclictest	2153890	-21	kworker/u4:4+events_unbound	23:23:09	0
2016655	99	98	79,8	cyclictest	2153890	-21	kworker/u4:4+events_unbound	23:23:08	0
2016656	99	97	89,6	cyclictest	2080510	-21	kworker/u4:0+events_unbound	21:47:40	1
2016655	99	97	88,7	cyclictest	2162679	-21	kworker/u4:2+events_unbound	23:33:08	0
2016655	99	92	75,6	cyclictest	2014066	-21	kworker/u4:3+events_unbound	19:35:01	0
2016656	99	88	81,5	cyclictest	2136980	-21	kworker/u4:0+events_unbound	22:53:01	1
2016656	99	87	80,5	cyclictest	2080510	-21	kworker/u4:0+events_unbound	22:17:52	1
2016655	99	87	78,7	cyclictest	2205767	-21	kworker/u4:6+events_unbound	00:35:00	0
2016655	99	86	62,6	cyclictest	2044805	-21	kworker/u4:7+events_unbound	21:30:00	0
2016655	99	83	77,4	cyclictest	2014067	-21	kworker/u4:4+events_unbound	19:12:08	0
2016655	99	83	75,6	cyclictest	2043534	-21	kworker/u4:0+events_unbound	21:22:35	0
2016655	99	82	74,5	cyclictest	2175794	-21	kworker/u4:19+events_unbound	23:38:11	0
2016655	99	79	55,8	cyclictest	2067203	-21	kworker/u4:9+events_unbound	21:45:13	0
2016655	99	78	70,6	cyclictest	2067201	-21	kworker/u4:5+events_unbound	21:32:37	0
2016655	99	75	66,7	cyclictest	2098174	-21	kworker/u4:13+events_unbound	22:07:49	0
2016655	99	74	66,6	cyclictest	2047375	-21	kworker/u4:5+events_unbound	21:10:01	0
2016655	99	73	65,6	cyclictest	2153891	-21	kworker/u4:7+events_unbound	23:13:06	0
2016655	99	73	52,18	cyclictest	53	-21	kswapd0	00:00:08	0
2016655	99	71	63,6	cyclictest	2029390	-21	kworker/u4:11+events_unbound	20:22:23	0
2016656	99	68	60,6	cyclictest	2119464	-21	kworker/u4:12+events_unbound	22:32:58	1
2016656	99	67	61,4	cyclictest	2192726	-21	kworker/u4:8+events_unbound	00:08:18	1
2016656	99	66	49,11	cyclictest	2153429	-21	rm	23:11:05	1
2016655	99	66	47,14	cyclictest	2073602	-21	modprobe	21:40:01	0
2016656	99	65	55,7	cyclictest	2153890	-21	kworker/u4:4+events_unbound	23:20:01	1
2016655	99	64	55,7	cyclictest	53	-21	kswapd0	23:40:13	0
2016655	99	64	55,6	cyclictest	2216047	-21	apt-get	00:25:08	0
2016655	99	63	55,6	cyclictest	2044806	-21	kworker/u4:8+events_unbound	21:02:30	0
2016656	99	62	55,5	cyclictest	2080512	-21	kworker/u4:2+events_unbound	22:02:45	1
2016656	99	62	53,6	cyclictest	2044805	-21	kworker/u4:7+events_unbound	20:57:30	1
2016655	99	61	54,5	cyclictest	2110677	-21	kworker/u4:2+events_unbound	22:30:03	0
2016656	99	60	52,6	cyclictest	2026846	-21	kworker/u4:3+events_unbound	19:52:16	1
2016655	99	60	52,6	cyclictest	2192726	-21	kworker/u4:8+events_unbound	00:10:01	0
2016655	99	60	52,6	cyclictest	2110680	-21	kworker/u4:8+events_unbound	22:23:00	0
2016655	99	60	46,10	cyclictest	2123555	-21	ssh	22:36:39	0
2016656	99	59	50,6	cyclictest	2021740	-21	kworker/u4:15+events_unbound	20:27:22	1
2016655	99	59	53,4	cyclictest	2031953	-21	kworker/u4:3+events_unbound	20:17:21	0
2016656	99	58	51,5	cyclictest	2037155	-21	kworker/u4:2+events_unbound	20:37:25	1
2016656	99	58	50,6	cyclictest	2210102	-21	kworker/u4:3+events_unbound	00:25:00	1
2016656	99	58	50,6	cyclictest	2210102	-21	kworker/u4:3+events_unbound	00:25:00	1
2016656	99	58	50,6	cyclictest	2044805	-21	kworker/u4:7+events_unbound	21:12:33	1
2016655	99	58	51,5	cyclictest	2093761	-21	kworker/u4:12+events_unbound	22:05:01	0
2016655	99	58	50,6	cyclictest	2071639	-21	kworker/u4:7+events_unbound	21:54:59	0
2016656	99	57	49,6	cyclictest	2110678	-21	kworker/u4:4+events_unbound	22:22:53	1
2016655	99	57	50,5	cyclictest	2175794	-21	kworker/u4:19+events_unbound	23:55:00	0
2016656	99	56	49,5	cyclictest	2119463	-21	kworker/u4:10+events_unbound	22:37:58	1
2016655	99	56	48,6	cyclictest	2222531	-21	kworker/u4:10+events_unbound	00:38:27	0
2016655	99	56	23,21	cyclictest	2160312	-21	grep	23:20:01	0
2016656	99	55	48,5	cyclictest	2162682	-21	kworker/u4:8+events_unbound	23:28:08	1
2016656	99	55	39,5	cyclictest	2071639	-21	kworker/u4:7+events_unbound	21:37:40	1
2016655	99	55	47,6	cyclictest	2021733	-21	kworker/u4:1+events_unbound	21:14:59	0
2016655	99	55	46,6	cyclictest	2119459	-21	kworker/u4:6+events_unbound	23:08:04	0
2016656	99	54	46,6	cyclictest	2153891	-21	kworker/u4:7+events_unbound	23:56:59	1
2016656	99	54	41,6	cyclictest	2042263	-21	kworker/u4:17+events_unbound	20:47:27	1
2016656	99	54	37,6	cyclictest	2205768	-21	kworker/u4:7+events_unbound	00:13:22	1
2016655	99	54	47,5	cyclictest	2028119	-21	kworker/u4:9+events_unbound	20:32:25	0
2016655	99	54	46,6	cyclictest	2084246	-21	kworker/u4:4+events_unbound	22:15:59	0
2016655	99	54	46,5	cyclictest	2205766	-21	kworker/u4:4+events_unbound	00:18:58	0
2016655	99	54	33,19	cyclictest	2074371	-21	grep	21:40:20	0
2016656	99	53	46,5	cyclictest	2162682	-21	kworker/u4:8+events_unbound	23:43:11	1
2016656	99	53	46,5	cyclictest	2029392	-21	kworker/u4:14+events_unbound	20:12:20	1
2016655	99	53	45,5	cyclictest	2017885	-21	kworker/u4:5+events_unbound	19:27:11	0
2016655	99	53	45,5	cyclictest	2017885	-21	kworker/u4:5+events_unbound	19:27:11	0
2016655	99	53	2,41	cyclictest	2113767	-21	ntpq	22:25:32	0
2016655	99	52	45,5	cyclictest	2026849	-21	kworker/u4:7+events_unbound	19:57:15	0
2016655	99	52	41,9	cyclictest	2018272	-21	df_abs	19:15:16	0
2016655	99	52	30,18	cyclictest	2032003	-21	munin-run	20:10:05	0
2016656	99	51	44,5	cyclictest	2128273	-21	kworker/u4:3+events_unbound	22:46:00	1
2016656	99	51	43,6	cyclictest	2047377	-21	systemd	21:07:29	1
2016656	99	51	43,6	cyclictest	2021733	-21	kworker/u4:1+events_unbound	19:42:14	1
2016655	99	51	40,6	cyclictest	0	-21	swapper/0	20:25:15	0
2016655	99	51	38,9	cyclictest	2141487	-21	ssh	22:57:47	0
2016656	99	50	42,6	cyclictest	2189217	-21	systemd	23:53:12	1
2016656	99	50	42,6	cyclictest	2034771	-21	latency_hist	20:20:14	1
2016655	99	50	41,6	cyclictest	2021733	-21	kworker/u4:1+events_unbound	19:40:02	0
2016655	99	50	36,9	cyclictest	2137854	-21	ssh	22:53:51	0
2016656	99	49	42,5	cyclictest	2208118	-21	fschecks_count	00:15:21	1
2016656	99	49	42,5	cyclictest	2023941	-21	sendmail_mailqu	19:35:37	1
2016656	99	49	41,6	cyclictest	2099726	-21	munin-run	22:10:00	1
2016656	99	49	39,6	cyclictest	2140144	-21	unixbench_singl	22:55:42	1
2016656	99	49	37,10	cyclictest	2100122	-21	/usr/sbin/munin	22:10:16	1
2016655	99	49	41,6	cyclictest	2076093	-21	kworker/u4:11+events_unbound	21:55:37	0
2016655	99	49	40,7	cyclictest	2054590	-21	sshd	21:17:31	0
2016655	99	49	36,6	cyclictest	2192726	-21	kworker/u4:8+events_unbound	00:20:18	0
2016655	99	49	36,6	cyclictest	2192726	-21	kworker/u4:8+events_unbound	00:20:17	0
2016656	99	48	39,6	cyclictest	2016591	-21	kworker/u4:1+events_unbound	19:17:08	1
2016655	99	48	31,7	cyclictest	2201432	-21	kworker/u4:9+events_unbound	00:10:56	0
2016656	99	47	40,5	cyclictest	2195467	-21	fschecks_time	00:00:30	1
2016656	99	47	38,5	cyclictest	1815251	-21	kworker/u4:6+events_unbound	19:25:00	1
2016656	99	47	35,10	cyclictest	2022301	-21	gltestperf	19:30:19	1
2016656	99	47	23,5	cyclictest	2080510	-21	kworker/u4:0+events_unbound	21:57:51	1
2016655	99	47	39,5	cyclictest	2039022	-21	gltestperf	20:35:22	0
2016656	99	46	40,4	cyclictest	2086690	-21	latency_hist	21:55:01	1
2016656	99	46	39,5	cyclictest	2186079	-21	latency_hist	23:50:02	1
2016656	99	46	39,5	cyclictest	2065834	-21	/usr/sbin/munin	21:30:23	1
2016656	99	46	38,5	cyclictest	2045279	-21	fschecks_count	21:00:19	1
2016655	99	46	37,7	cyclictest	2044105	-21	gltestperf	20:55:18	0
2016655	99	46	37,6	cyclictest	2037156	-21	kworker/u4:4+events_unbound	20:50:25	0
2016655	99	46	33,10	cyclictest	2167087	-21	ssh	23:27:12	0
2016656	99	45	38,5	cyclictest	2220834	-21	grep	00:30:16	1
2016656	99	45	38,5	cyclictest	2126512	-21	/usr/sbin/munin	22:40:21	1
2016656	99	45	38,5	cyclictest	2031949	-21	kworker/u4:0+events_unbound	20:25:03	1
2016656	99	45	37,6	cyclictest	2225862	-21	sendmail_mailqu	00:35:37	1
2016656	99	45	35,8	cyclictest	2173483	-21	aten_r7power_cu	23:35:16	1
2016656	99	45	35,8	cyclictest	2074664	-21	ssh	21:40:29	1
2016656	99	45	35,7	cyclictest	2061637	-21	ntp_offset	21:25:31	1
2016655	99	45	35,7	cyclictest	2033067	-21	timerwakeupswit	20:10:38	0
2016655	99	45	35,6	cyclictest	0	-21	swapper/0	20:40:39	0
2016655	99	45	33,5	cyclictest	2184563	-21	kworker/u4:1+events_unbound	23:55:45	0
2016656	99	44	37,5	cyclictest	2017549	-21	sendmail_mailqu	19:10:36	1
2016656	99	44	36,6	cyclictest	2169099	-21	acpi	23:30:09	1
2016656	99	44	35,7	cyclictest	2145139	-21	kworker/u4:12+events_unbound	23:05:59	1
2016656	99	44	34,8	cyclictest	0	-21	swapper/1	22:25:32	1
2016655	99	44	34,8	cyclictest	2019466	-21	aten_r7power_en	19:20:15	0
2016656	99	43	6,29	cyclictest	2143960	-21	ssh	23:00:31	1
2016656	99	43	35,6	cyclictest	2017885	-21	kworker/u4:5+events_unbound	19:30:01	1
2016656	99	43	35,6	cyclictest	2017885	-21	kworker/u4:5+events_unbound	19:30:00	1
2016656	99	43	34,7	cyclictest	2057758	-21	unixbench_singl	21:20:41	1
2016656	99	43	33,7	cyclictest	2038560	-21	latency_hist	20:35:01	1
2016656	99	43	31,8	cyclictest	0	-21	swapper/1	00:25:42	1
2016655	99	43	36,5	cyclictest	2131552	-21	unixbench_singl	22:45:39	0
2016656	99	42	35,5	cyclictest	2040283	-21	gltestperf	20:40:22	1
2016656	99	42	35,5	cyclictest	2031207	-21	fschecks_time	20:05:23	1
2016656	99	42	35,5	cyclictest	2029403	-21	cron	20:00:00	1
2016656	99	42	34,6	cyclictest	0	-21	swapper/1	21:15:29	1
2016656	99	42	31,4	cyclictest	2162682	-21	kworker/u4:8-rpciod	23:25:01	1
2016656	99	42	31,4	cyclictest	2162682	-21	kworker/u4:8-rpciod	23:25:01	1
2016656	99	42	28,11	cyclictest	0	-21	swapper/1	20:55:00	1
2016655	99	41	32,7	cyclictest	2027369	-21	fschecks_time	19:50:19	0
2016655	99	41	32,6	cyclictest	0	-21	swapper/0	19:50:02	0
2016655	99	41	29,8	cyclictest	0	-21	swapper/0	20:45:39	0
2016656	99	39	32,5	cyclictest	2026883	-21	munin-plugin-st	19:50:00	1
2016656	99	38	28,7	cyclictest	0	-21	swapper/1	20:05:01	1
2016655	99	38	29,6	cyclictest	0	-21	swapper/0	20:05:01	0
2016655	99	38	28,6	cyclictest	0	-21	swapper/0	19:40:25	0
2016655	99	33	25,5	cyclictest	0	-21	swapper/0	19:10:02	0
2016656	99	32	24,6	cyclictest	2016690	-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