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 100 highest latencies:

System rack7slot2.osadl.org (updated Sun Jul 12, 2026 12:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2049155	99	134	115,6	cyclictest	2240962	-21	kworker/u4:2+events_unbound	12:25:20	1
2049155	99	123	115,5	cyclictest	2232086	-21	kworker/u4:10+events_unbound	12:05:16	1
2049155	99	110	100,7	cyclictest	53	-21	kswapd0	11:55:14	1
2049154	99	98	89,7	cyclictest	2175477	-21	kworker/u4:2+events_unbound	11:00:03	0
2049154	99	95	87,6	cyclictest	2219378	-21	kworker/u4:0+events_unbound	12:15:18	0
2049155	99	91	85,4	cyclictest	2131032	-21	kworker/u4:3+events_unbound	10:29:57	1
2049155	99	90	82,6	cyclictest	2228272	-21	kworker/u4:3+events_unbound	12:30:22	1
2049154	99	90	81,7	cyclictest	53	-21	kswapd0	12:20:19	0
2049155	99	89	80,7	cyclictest	2073500	-21	kworker/u4:2+events_unbound	08:59:39	1
2049155	99	86	70,4	cyclictest	2170959	-21	kworker/u4:17+events_unbound	11:10:04	1
2049154	99	86	76,7	cyclictest	2091391	-21	kworker/u4:0+events_unbound	09:24:42	0
2049155	99	81	69,8	cyclictest	53	-21	kswapd0	11:45:13	1
2049155	99	80	73,5	cyclictest	2104701	-21	kworker/u4:10+events_unbound	09:39:43	1
2049155	99	75	68,5	cyclictest	2135526	-21	kworker/u4:1+events_unbound	10:24:55	1
2049154	99	74	58,5	cyclictest	2193460	-21	kworker/u4:11+events_unbound	11:35:10	0
2049154	99	73	65,6	cyclictest	2073501	-21	kworker/u4:4+events_unbound	09:29:44	0
2049154	99	71	63,6	cyclictest	2061881	-21	kworker/u4:15+events_unbound	08:14:28	0
2049154	99	70	52,10	cyclictest	2173347	-21	aten_r7power_en	10:55:16	0
2049154	99	69	61,6	cyclictest	2051642	-21	kworker/u4:11+events_unbound	07:29:21	0
2049154	99	68	58,8	cyclictest	2188965	-21	kworker/u4:10+events_unbound	11:15:06	0
2049154	99	66	57,7	cyclictest	2100272	-21	kworker/u4:7+events_unbound	10:04:50	0
2049155	99	65	43,6	cyclictest	2073502	-21	kworker/u4:7+events_unbound	09:20:01	1
2049154	99	65	55,8	cyclictest	2100269	-21	kworker/u4:0+events_unbound	09:54:46	0
2049154	99	65	47,15	cyclictest	2254268	-21	kworker/u4:17+events_unbound	12:35:01	0
2049155	99	64	55,7	cyclictest	53	-21	kswapd0	11:00:01	1
2049154	99	64	2,25	cyclictest	2164338	-21	apt-get	10:45:12	0
2049155	99	63	56,5	cyclictest	2058066	-21	kworker/u4:8+events_unbound	08:39:35	1
2049155	99	59	52,5	cyclictest	2045435	-21	kworker/u4:6+events_unbound	08:15:18	1
2049155	99	59	51,6	cyclictest	2045434	-21	kworker/u4:2+events_unbound	07:15:00	1
2049154	99	59	52,5	cyclictest	2059339	-21	kworker/u4:11+events_unbound	08:04:28	0
2049154	99	59	43,13	cyclictest	0	-21	swapper/0	11:05:13	0
2049154	99	58	50,6	cyclictest	2113677	-21	kworker/u4:9+events_unbound	09:49:47	0
2049154	99	58	2,53	cyclictest	2225842	-21	apt-get	11:55:15	0
2049155	99	57	49,6	cyclictest	2058068	-21	kworker/u4:10+events_unbound	08:24:31	1
2049155	99	57	44,8	cyclictest	53	-21	kswapd0	09:30:18	1
2049154	99	57	50,5	cyclictest	2193460	-21	kworker/u4:11+events_unbound	11:40:36	0
2049154	99	57	39,8	cyclictest	0	-21	swapper/0	09:30:13	0
2049155	99	56	48,5	cyclictest	2193460	-21	kworker/u4:11+events_unbound	11:20:02	1
2049154	99	56	48,6	cyclictest	2252447	-21	fschecks_count	12:25:21	0
2049155	99	55	48,5	cyclictest	2073503	-21	kworker/u4:9+events_unbound	08:44:38	1
2049155	99	55	46,7	cyclictest	2039087	-21	kworker/u4:4+events_unbound	07:25:02	1
2049154	99	55	49,4	cyclictest	2051642	-21	kworker/u4:11+events_unbound	07:20:01	0
2049154	99	55	47,6	cyclictest	2193458	-21	kworker/u4:5+events_unbound	11:20:03	0
2049155	99	54	47,5	cyclictest	2045435	-21	kworker/u4:6+events_unbound	08:09:29	1
2049155	99	54	42,9	cyclictest	2080641	-21	cut	09:10:19	1
2049154	99	54	45,6	cyclictest	0	-21	swapper/0	09:20:01	0
2049155	99	53	46,5	cyclictest	53	-21	kswapd0	12:25:00	1
2049155	99	53	46,5	cyclictest	2124840	-21	fschecks_time	10:00:21	1
2049155	99	53	45,6	cyclictest	2055494	-21	kworker/u4:3+events_unbound	07:55:00	1
2049155	99	53	44,6	cyclictest	2219379	-21	kworker/u4:1+events_unbound	12:00:04	1
2049155	99	53	43,6	cyclictest	0	-21	swapper/1	09:50:11	1
2049154	99	53	45,6	cyclictest	2258690	-21	kworker/u4:1+events_unbound	12:35:23	0
2049154	99	53	44,6	cyclictest	2161935	-21	kworker/u4:16+events_unbound	10:43:45	0
2049154	99	53	41,10	cyclictest	2129510	-21	netstat	10:05:24	0
2049154	99	53	35,16	cyclictest	0	-21	swapper/0	10:30:38	0
2049155	99	52	44,6	cyclictest	2237173	-21	kworker/u4:1+events_unbound	12:20:06	1
2049155	99	52	43,7	cyclictest	2197896	-21	kworker/u4:4-rpciod	11:30:40	1
2049154	99	52	45,5	cyclictest	2049152	-21	cyclictest	12:10:35	0
2049155	99	51	45,4	cyclictest	2058068	-21	kworker/u4:10+events_unbound	08:05:01	1
2049155	99	51	35,9	cyclictest	0	-21	swapper/1	08:15:01	1
2049154	99	51	21,27	cyclictest	256	50	irq/23-42890000.ethernet	10:20:10	0
2049155	99	50	43,5	cyclictest	2239127	-21	aten_r7power_po	12:10:16	1
2049155	99	50	34,9	cyclictest	2069685	-21	modprobe	08:30:01	1
2049154	99	50	42,6	cyclictest	2221792	-21	/usr/sbin/munin	11:50:20	0
2049154	99	50	40,7	cyclictest	2068398	-21	systemd	08:24:29	0
2049155	99	49	42,5	cyclictest	2134141	-21	/usr/sbin/munin	10:10:34	1
2049155	99	49	41,6	cyclictest	2197896	-21	kworker/u4:4+events_unbound	11:30:00	1
2049155	99	49	38,8	cyclictest	0	-21	swapper/1	09:30:00	1
2049155	99	49	37,9	cyclictest	0	-21	swapper/1	10:30:14	1
2049155	99	49	35,8	cyclictest	2140018	-21	kworker/u4:10-rpciod	10:18:51	1
2049154	99	49	41,6	cyclictest	2230235	-21	/usr/sbin/munin	12:00:11	0
2049154	99	49	41,6	cyclictest	2134239	-21	/usr/sbin/munin	10:10:37	0
2049155	99	48	41,5	cyclictest	2161274	-21	/usr/sbin/munin	10:40:42	1
2049155	99	48	41,5	cyclictest	2124280	-21	latency_hist	10:00:01	1
2049155	99	48	41,5	cyclictest	2124280	-21	latency_hist	10:00:01	1
2049155	99	48	40,5	cyclictest	2100270	-21	kworker/u4:1+events_unbound	09:50:02	1
2049155	99	48	38,8	cyclictest	2182223	-21	aten_r7power_po	11:05:16	1
2049155	99	48	38,7	cyclictest	2089374	-21	aten_r7power_po	09:20:22	1
2049155	99	48	38,7	cyclictest	2052076	-21	sed	07:20:16	1
2049154	99	48	41,5	cyclictest	2186817	-21	grep	11:10:20	0
2049154	99	48	41,5	cyclictest	2156217	-21	diskmemload	10:35:31	0
2049154	99	48	38,8	cyclictest	2081253	-21	sendmail_mailtr	09:10:37	0
2049154	99	48	25,21	cyclictest	2076542	-21	fschecks_time	08:55:20	0
2049154	99	48	1,6	cyclictest	2066002	-21	apt-get	08:15:20	0
2049155	99	47	40,5	cyclictest	2061003	-21	sed	07:55:18	1
2049155	99	47	39,5	cyclictest	2261081	-21	df_abs	12:35:22	1
2049155	99	47	34,9	cyclictest	2208804	-21	tune2fs	11:35:19	1
2049155	99	47	31,10	cyclictest	2055516	-21	kworker/u4:1	07:35:00	1
2049154	99	47	41,4	cyclictest	2234731	-21	aten_r7power_en	12:05:16	0
2049154	99	47	40,5	cyclictest	1069	-21	lldpd	08:37:00	0
2049154	99	47	38,7	cyclictest	2204535	-21	gltestperf	11:30:22	0
2049154	99	47	29,16	cyclictest	2102454	-21	aten_r7power_en	09:35:23	0
2049155	99	46	39,5	cyclictest	2051415	-21	threads	07:15:37	1
2049155	99	46	36,8	cyclictest	2107871	-21	xargs	09:40:43	1
2049155	99	46	33,11	cyclictest	2155567	-21	aten_r7power_en	10:35:16	1
2049154	99	46	40,4	cyclictest	2199618	-21	sshd	11:25:06	0
2049155	99	45	7,27	cyclictest	2165040	-21	ssh	10:45:27	1
2049155	99	45	37,5	cyclictest	2181799	-21	munin-run	11:05:01	1
2049155	99	45	36,7	cyclictest	2049211	-21	latency_hist	07:10:01	1
2049154	99	45	38,5	cyclictest	2107033	-21	/usr/sbin/munin	09:40:21	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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