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 all highest latencies:

System rack7slot2.osadl.org (updated Thu Aug 28, 2025 00:44:05)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2136619	99	99	90,7	cyclictest	2195433	-21	kworker/u4:7+events_unbound	22:06:12	1
2136619	99	89	82,5	cyclictest	2184433	-21	kworker/u4:5+events_unbound	21:41:07	1
2136619	99	82	75,5	cyclictest	2268377	-21	kworker/u4:5+events_unbound	23:36:27	1
2136618	99	82	75,5	cyclictest	2279433	-21	kworker/u4:9+events_unbound	23:52:43	0
2136619	99	73	63,8	cyclictest	2300599	-21	kworker/u4:7+events_unbound	00:12:07	1
2136619	99	73	57,5	cyclictest	2235103	-21	kworker/u4:3+events_unbound	23:11:23	1
2136618	99	73	35,8	cyclictest	2267035	-21	kernelversion	23:25:30	0
2136619	99	72	65,5	cyclictest	2227900	-21	kworker/u4:3+events_unbound	22:36:18	1
2136618	99	71	35,5	cyclictest	2235104	-21	kworker/u4:4-rpciod	22:45:36	0
2136619	99	70	63,5	cyclictest	2195432	-21	kworker/u4:6+events_unbound	21:55:00	1
2136619	99	69	61,6	cyclictest	1925393	-21	kworker/u4:8+events_unbound	19:35:52	1
2136618	99	69	34,5	cyclictest	0	-21	swapper/0	22:16:10	0
2136618	99	69	33,8	cyclictest	2197480	-21	fschecks_time	21:50:25	0
2136618	99	68	35,4	cyclictest	2206399	-21	kworker/u4:0-rpciod	23:00:38	0
2136618	99	68	30,7	cyclictest	0	-21	swapper/0	23:15:29	0
2136618	99	67	60,5	cyclictest	2279433	-21	kworker/u4:9+events_unbound	00:00:16	0
2136619	99	66	57,6	cyclictest	2163617	-21	kworker/u4:3+events_unbound	20:55:01	1
2136618	99	66	4,8	cyclictest	2280650	-21	munin-run	23:45:00	0
2136618	99	66	31,6	cyclictest	0	-21	swapper/0	22:55:01	0
2136618	99	66	30,8	cyclictest	2273751	-21	aten_r7power_en	23:35:17	0
2136618	99	65	56,6	cyclictest	2316607	-21	kworker/u4:5+events_unbound	00:39:05	0
2136618	99	65	34,5	cyclictest	2208956	-21	threads	22:05:42	0
2136619	99	64	53,9	cyclictest	2275717	-21	kworker/u4:3+events_unbound	00:05:30	1
2136618	99	64	32,5	cyclictest	2230614	-21	timerandwakeup	22:35:40	0
2136618	99	63	6,26	cyclictest	2312628	-21	ntpq	00:30:31	0
2136619	99	62	54,6	cyclictest	2220612	-21	kworker/u4:5+events_unbound	22:31:16	1
2136619	99	62	54,6	cyclictest	2220612	-21	kworker/u4:5+events_unbound	22:31:16	1
2136619	99	62	50,9	cyclictest	2253380	-21	systemd	23:06:32	1
2136618	99	62	54,6	cyclictest	2139137	-21	kworker/u4:10+events_unbound	21:21:02	0
2136618	99	62	52,7	cyclictest	2298694	-21	latency_hist	00:10:01	0
2136619	99	61	51,6	cyclictest	2309560	-21	sh	00:25:39	1
2136618	99	61	30,5	cyclictest	2177220	-21	kworker/u4:1-rpciod	21:25:13	0
2136619	99	60	51,7	cyclictest	53	-21	kswapd0	21:35:16	1
2136619	99	60	49,8	cyclictest	2275717	-21	kworker/u4:3+events_unbound	00:00:12	1
2136619	99	60	45,8	cyclictest	0	-21	swapper/1	00:20:34	1
2136619	99	59	50,7	cyclictest	314	-21	systemd-journal	23:26:36	1
2136619	99	59	50,6	cyclictest	0	-21	swapper/1	22:40:14	1
2136619	99	59	49,7	cyclictest	2202705	-21	kworker/u4:1+events_unbound	22:11:10	1
2136618	99	59	8,16	cyclictest	2252352	-21	ntpq	23:05:27	0
2136619	99	58	51,5	cyclictest	1923584	-21	kworker/u4:9+events_unbound	19:15:01	1
2136618	99	57	39,13	cyclictest	0	-21	swapper/0	22:10:07	0
2136619	99	56	6,36	cyclictest	1060	-21	snmpd	19:30:31	1
2136619	99	56	50,4	cyclictest	2155933	-21	kworker/u4:4+events_unbound	20:30:02	1
2136619	99	56	47,6	cyclictest	2164896	-21	kworker/u4:8+events_unbound	21:05:01	1
2136619	99	56	44,7	cyclictest	2218490	-21	kworker/u4:6	22:20:00	1
2136619	99	56	42,8	cyclictest	0	-21	swapper/1	21:10:33	1
2136619	99	55	47,6	cyclictest	2163617	-21	kworker/u4:3+events_unbound	21:06:02	1
2136619	99	55	47,6	cyclictest	2145655	-21	kworker/u4:6+events_unbound	20:10:52	1
2136618	99	55	45,7	cyclictest	2161065	-21	kworker/u4:22+events_unbound	20:45:59	0
2136619	99	54	44,7	cyclictest	2207745	-21	latency_hist	22:05:01	1
2136619	99	54	42,9	cyclictest	2164898	-21	kworker/u4:13+events_unbound	21:30:13	1
2136619	99	54	42,8	cyclictest	2223357	-21	cat	22:25:38	1
2136619	99	53	46,5	cyclictest	2313004	-21	/usr/sbin/munin	00:30:46	1
2136619	99	53	46,5	cyclictest	2150792	-21	kworker/u4:17+events_unbound	20:40:59	1
2136619	99	53	46,5	cyclictest	0	-21	swapper/1	21:45:40	1
2136619	99	53	44,6	cyclictest	2279433	-21	kworker/u4:9+events_unbound	23:55:27	1
2136619	99	53	42,8	cyclictest	1784012	-21	kworker/u4:4+events_unbound	19:45:50	1
2136619	99	53	39,7	cyclictest	2280633	-21	kworker/u4:12	23:45:00	1
2136618	99	53	47,4	cyclictest	2167508	-21	diskmemload	23:21:23	0
2136619	99	52	45,5	cyclictest	2175708	-21	/usr/sbin/munin	21:20:19	1
2136619	99	52	43,7	cyclictest	2235103	-21	kworker/u4:3+events_unbound	22:55:38	1
2136619	99	52	43,6	cyclictest	2235104	-21	kworker/u4:4+events_unbound	23:16:24	1
2136619	99	52	43,6	cyclictest	2202784	-21	sshd	21:57:28	1
2136618	99	52	46,4	cyclictest	2238796	-21	kworker/u4:5+events_unbound	23:11:34	0
2136618	99	52	45,5	cyclictest	2220612	-21	kworker/u4:5+events_unbound	22:35:02	0
2136618	99	52	45,5	cyclictest	2220612	-21	kworker/u4:5+events_unbound	22:35:01	0
2136619	99	51	6,34	cyclictest	2179733	-21	ssh	21:25:31	1
2136619	99	51	42,7	cyclictest	2173158	-21	systemd	21:16:03	1
2136619	99	51	39,8	cyclictest	2153564	-21	aten2__	20:15:17	1
2136618	99	51	43,6	cyclictest	2194278	-21	/usr/sbin/munin	21:45:40	0
2136618	99	51	34,9	cyclictest	2281821	-21	ssh	23:45:42	0
2136619	99	50	40,7	cyclictest	2240564	-21	wget	22:50:19	1
2136618	99	50	44,4	cyclictest	2245895	-21	systemd	22:56:18	0
2136618	99	50	29,18	cyclictest	2159804	-21	cut	20:40:00	0
2136618	99	50	29,18	cyclictest	2159804	-21	cut	20:40:00	0
2136619	99	49	42,5	cyclictest	2152068	-21	kworker/u4:18+events_unbound	20:20:56	1
2136619	99	49	42,5	cyclictest	2139136	-21	kworker/u4:7+events_unbound	20:50:02	1
2136619	99	49	41,6	cyclictest	2280962	-21	sh	23:45:16	1
2136619	99	49	40,6	cyclictest	1784012	-21	kworker/u4:4+events_unbound	19:40:46	1
2136619	99	49	39,8	cyclictest	2248296	-21	ssh	23:00:20	1
2136619	99	49	38,9	cyclictest	379	-21	dbus-daemon	22:46:15	1
2136619	99	49	29,15	cyclictest	0	-21	swapper/1	19:20:21	1
2136618	99	49	38,8	cyclictest	2167515	-21	munin-run	21:10:00	0
2136618	99	49	32,15	cyclictest	2195433	-21	kworker/u4:7-xprtiod	22:20:36	0
2136619	99	48	41,5	cyclictest	2303953	-21	kworker/u4:8+events_unbound	00:35:19	1
2136619	99	48	41,5	cyclictest	2264363	-21	ssh	23:21:23	1
2136619	99	48	38,7	cyclictest	0	-21	swapper/1	19:25:32	1
2136618	99	48	41,5	cyclictest	53	-21	kswapd0	00:25:35	0
2136618	99	48	41,5	cyclictest	2141684	-21	unixbench_singl	19:25:41	0
2136618	99	48	39,6	cyclictest	2172027	-21	fschecks_time	21:15:21	0
2136619	99	47	38,6	cyclictest	2159418	-21	sendmail_mailqu	20:35:37	1
2136619	99	47	38,6	cyclictest	2159418	-21	sendmail_mailqu	20:35:37	1
2136618	99	47	39,6	cyclictest	2184433	-21	kworker/u4:5+events_unbound	21:36:09	0
2136618	99	47	38,7	cyclictest	2155209	-21	gltestperf	20:20:23	0
2136618	99	47	38,6	cyclictest	2300599	-21	kworker/u4:7+rpciod	00:15:18	0
2136618	99	47	10,35	cyclictest	2288942	-21	ssh	23:55:34	0
2136619	99	46	39,5	cyclictest	2157641	-21	fschecks_count	20:30:21	1
2136619	99	46	39,5	cyclictest	2155932	-21	kworker/u4:2+events_unbound	21:00:00	1
2136619	99	46	34,8	cyclictest	2257153	-21	kworker/u4:9-rpciod	23:30:36	1
2136618	99	46	40,4	cyclictest	2204041	-21	cat	22:00:01	0
2136618	99	46	37,7	cyclictest	2223161	-21	proc_pri	22:25:36	0
2136618	99	46	37,6	cyclictest	2149146	-21	sendmail_mailqu	19:55:36	0
2136618	99	46	19,23	cyclictest	257	50	irq/23-42890000.ethernet	19:40:21	0
2136619	99	45	38,5	cyclictest	2303997	-21	sh	00:17:17	1
2136619	99	45	34,9	cyclictest	2150823	-21	munin-run	20:05:00	1
2136619	99	45	32,9	cyclictest	0	-21	swapper/1	23:50:24	1
2136618	99	45	38,5	cyclictest	2273413	-21	modprobe	23:35:00	0
2136618	99	45	38,5	cyclictest	2146631	-21	cat	19:45:42	0
2136618	99	45	37,5	cyclictest	2233681	-21	if_eth0	22:40:24	0
2136618	99	45	35,7	cyclictest	2151277	-21	fschecks_time	20:05:19	0
2136619	99	44	4,32	cyclictest	1060	-21	snmpd	19:15:28	1
2136619	99	44	37,5	cyclictest	2222034	-21	grep	22:25:01	1
2136618	99	44	39,4	cyclictest	2306018	-21	netstat	00:20:22	0
2136618	99	44	36,6	cyclictest	2139137	-21	kworker/u4:10+events_unbound	20:00:49	0
2136618	99	44	35,6	cyclictest	2300007	-21	unixbench_singl	00:10:44	0
2136618	99	44	34,7	cyclictest	2190748	-21	mailstats	21:40:42	0
2136618	99	44	33,9	cyclictest	2153374	-21	munin-run	20:15:00	0
2136618	99	44	21,20	cyclictest	2137008	-21	fschecks_count	19:10:21	0
2136619	99	43	36,5	cyclictest	2111541	-21	kworker/u4:0+events_unbound	19:10:01	1
2136618	99	43	36,5	cyclictest	2205183	-21	processes	22:00:37	0
2136618	99	43	36,5	cyclictest	2138309	-21	fschecks_count	19:15:19	0
2136618	99	43	35,6	cyclictest	2160023	-21	aten_r7power_cu	20:40:16	0
2136618	99	43	33,7	cyclictest	2155931	-21	kworker/u4:1+rpciod	20:30:18	0
2136618	99	43	33,7	cyclictest	2147173	-21	aten_r7power_cu	19:50:16	0
2136618	99	42	35,4	cyclictest	0	-21	swapper/0	19:30:44	0
2136618	99	42	33,6	cyclictest	2164178	-21	gltestperf	20:55:23	0
2136618	99	42	33,6	cyclictest	0	-21	swapper/0	21:35:01	0
2136618	99	42	33,6	cyclictest	0	-21	swapper/0	20:25:40	0
2136618	99	42	33,6	cyclictest	0	-21	swapper/0	20:15:28	0
2136619	99	41	32,6	cyclictest	0	-21	swapper/1	20:05:36	1
2136619	99	41	31,7	cyclictest	0	-21	swapper/1	19:55:26	1
2136619	99	41	27,9	cyclictest	0	-21	swapper/1	19:50:36	1
2136618	99	41	34,5	cyclictest	2140210	-21	timerandwakeup	19:20:36	0
2136618	99	41	33,6	cyclictest	2164896	-21	kworker/u4:8+events_unbound	21:01:03	0
2136618	99	41	32,7	cyclictest	2168199	-21	gltestperf	21:10:21	0
2136618	99	40	33,5	cyclictest	2144305	-21	munin-run	19:40:00	0
2136618	99	37	28,6	cyclictest	0	-21	swapper/0	20:50:21	0
2136618	99	36	27,6	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