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 Sat Jun 28, 2025 12:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2113172	99	96	88,5	cyclictest	2288382	-21	kworker/u4:0+events_unbound	12:36:57	1
2113172	99	94	87,5	cyclictest	2220056	-21	kworker/u4:0+events_unbound	11:11:37	1
2113171	99	88	71,10	cyclictest	52	-21	kswapd0	09:55:11	0
2113172	99	83	75,6	cyclictest	2237566	-21	kworker/u4:0+events_unbound	11:41:48	1
2113171	99	81	57,17	cyclictest	52	-21	kswapd0	11:15:08	0
2113172	99	78	60,5	cyclictest	2275913	-21	kworker/u4:0+events_unbound	12:21:55	1
2113171	99	78	71,5	cyclictest	2137500	-21	kworker/u4:6+events_unbound	09:01:21	0
2113172	99	75	69,4	cyclictest	2111898	-21	kworker/u4:3+events_unbound	09:11:20	1
2113171	99	75	68,5	cyclictest	2111899	-21	kworker/u4:4+events_unbound	07:20:45	0
2113172	99	73	66,5	cyclictest	2230411	-21	kworker/u4:9+events_unbound	11:26:47	1
2113172	99	73	66,5	cyclictest	2163271	-21	kworker/u4:5+events_unbound	09:50:01	1
2113172	99	72	63,6	cyclictest	2114400	-21	kworker/u4:5+events_unbound	07:40:01	1
2113172	99	72	53,6	cyclictest	2116978	-21	kworker/u4:11+events_unbound	07:45:00	1
2113172	99	70	56,5	cyclictest	2196995	-21	kworker/u4:1+events_unbound	10:46:29	1
2113171	99	70	5,56	cyclictest	2246584	-21	ssh	11:40:35	0
2113172	99	69	62,5	cyclictest	2111898	-21	kworker/u4:3+events_unbound	08:20:00	1
2113172	99	69	60,6	cyclictest	2200364	-21	kworker/u4:11+events_unbound	11:04:59	1
2113172	99	69	57,8	cyclictest	0	-21	swapper/1	10:35:41	1
2113172	99	66	57,6	cyclictest	2196996	-21	kworker/u4:7+events_unbound	10:31:27	1
2113171	99	66	56,5	cyclictest	0	-21	swapper/0	09:10:11	0
2113172	99	65	45,6	cyclictest	2149323	-21	kworker/u4:21+events_unbound	10:06:27	1
2113171	99	64	50,10	cyclictest	2289118	-21	ssh	12:33:04	0
2113172	99	59	52,5	cyclictest	2258486	-21	kworker/u4:5+events_unbound	12:20:00	1
2113172	99	59	51,7	cyclictest	2114400	-21	kworker/u4:5+events_unbound	07:25:01	1
2113172	99	59	51,4	cyclictest	0	-21	swapper/1	09:55:07	1
2113172	99	58	51,5	cyclictest	2124708	-21	kworker/u4:14+events_unbound	07:55:46	1
2113172	99	57	49,6	cyclictest	2170389	-21	kworker/u4:3+events_unbound	10:41:30	1
2113171	99	57	50,5	cyclictest	2091375	-21	kworker/u4:2+events_unbound	08:00:03	0
2113171	99	57	42,9	cyclictest	0	-21	swapper/0	07:25:10	0
2113171	99	57	2,18	cyclictest	2195671	-21	ssh	10:25:34	0
2113171	99	57	2,18	cyclictest	2195671	-21	ssh	10:25:33	0
2113172	99	56	48,6	cyclictest	2258485	-21	kworker/u4:4+events_unbound	12:26:56	1
2113172	99	56	48,6	cyclictest	2124708	-21	kworker/u4:14+events_unbound	08:10:49	1
2113171	99	56	49,5	cyclictest	2171457	-21	latency_hist	09:50:00	0
2113171	99	56	43,11	cyclictest	2198551	-21	df_abs	10:30:20	0
2113172	99	55	47,6	cyclictest	2251023	-21	kworker/u4:9+events_unbound	12:01:53	1
2113171	99	55	43,9	cyclictest	2261549	-21	ssh	12:00:41	0
2113171	99	55	33,13	cyclictest	0	-21	swapper/0	10:20:34	0
2113172	99	54	47,5	cyclictest	2133654	-21	kworker/u4:2+events_unbound	09:21:22	1
2113172	99	54	46,5	cyclictest	2244004	-21	kworker/u4:16+events_unbound	12:30:17	1
2113172	99	54	45,6	cyclictest	2160998	-21	apt	09:35:01	1
2113171	99	54	48,5	cyclictest	2187037	-21	kworker/u4:18+events_unbound	10:35:03	0
2113171	99	54	46,6	cyclictest	2256533	-21	df_abs	11:55:19	0
2113171	99	54	45,6	cyclictest	2267234	-21	kworker/u4:6+events_unbound	12:09:01	0
2113171	99	54	33,19	cyclictest	2217951	-21	sendmail	10:59:59	0
2113171	99	54	33,19	cyclictest	2217951	-21	sendmail	10:59:59	0
2113171	99	54	29,19	cyclictest	255	50	irq/23-42890000.ethernet	09:05:07	0
2113172	99	53	37,6	cyclictest	2234123	-21	kworker/u4:3+events_unbound	11:35:06	1
2113171	99	53	46,5	cyclictest	2100483	-21	kworker/u4:17+events_unbound	08:40:03	0
2113171	99	53	35,6	cyclictest	2155250	-21	mailstats	09:25:43	0
2113171	99	53	33,16	cyclictest	2282405	-21	fschecks_count	12:25:24	0
2113171	99	53	30,20	cyclictest	2172027	-21	fschecks_count	09:50:22	0
2113172	99	52	42,8	cyclictest	2097791	-21	kworker/u4:9+events_unbound	07:30:01	1
2113171	99	52	44,6	cyclictest	2226295	-21	/usr/sbin/munin	11:10:45	0
2113171	99	52	44,6	cyclictest	2123428	-21	systemd	07:45:47	0
2113171	99	52	37,9	cyclictest	0	-21	swapper/0	08:24:59	0
2113171	99	52	37,10	cyclictest	2241919	-21	modprobe	11:35:01	0
2113171	99	51	42,6	cyclictest	2137883	-21	df	08:45:20	0
2113171	99	51	37,10	cyclictest	0	-21	swapper/0	10:10:14	0
2113172	99	50	44,4	cyclictest	2142640	-21	cut	09:05:00	1
2113172	99	50	43,5	cyclictest	2222328	-21	sh	11:05:34	1
2113172	99	50	40,8	cyclictest	2138759	-21	systemd	08:46:15	1
2113172	99	50	40,8	cyclictest	2115659	-21	systemd	07:15:43	1
2113171	99	50	41,7	cyclictest	392	-21	systemd-logind	12:21:53	0
2113171	99	50	41,6	cyclictest	2151915	-21	/usr/sbin/munin	09:20:39	0
2113172	99	49	42,5	cyclictest	2239166	-21	fschecks_count	11:30:21	1
2113172	99	49	42,5	cyclictest	2210009	-21	kworker/u4:10+events_unbound	10:51:00	1
2113172	99	49	41,6	cyclictest	2149323	-21	kworker/u4:21+events_unbound	09:30:01	1
2113172	99	49	41,5	cyclictest	2179413	-21	/usr/sbin/munin	10:00:47	1
2113172	99	49	39,7	cyclictest	316	-21	systemd-journal	11:21:43	1
2113172	99	49	27,19	cyclictest	27	1	ktimers/1	11:45:16	1
2113171	99	49	41,6	cyclictest	2121869	-21	cat	07:40:37	0
2113171	99	49	40,7	cyclictest	2170389	-21	kworker/u4:3+events_unbound	10:16:26	0
2113171	99	49	40,6	cyclictest	2125226	-21	fschecks_time	07:55:20	0
2113171	99	49	38,8	cyclictest	2148625	-21	grep	09:15:42	0
2113171	99	49	38,8	cyclictest	2148625	-21	grep	09:15:41	0
2113172	99	48	42,4	cyclictest	2144003	-21	/usr/sbin/munin	09:10:01	1
2113172	99	48	37,7	cyclictest	2113170	-21	cyclictest	12:06:30	1
2113171	99	48	31,11	cyclictest	0	-21	swapper/0	07:20:01	0
2113171	99	48	20,4	cyclictest	15	1	ktimers/0	10:00:49	0
2113171	99	47	40,5	cyclictest	2269722	-21	/usr/sbin/munin	12:10:24	0
2113171	99	47	40,5	cyclictest	2247621	-21	kworker/u4:3+events_unbound	11:46:51	0
2113171	99	47	38,5	cyclictest	2113170	-21	cyclictest	11:08:28	0
2113171	99	47	38,5	cyclictest	0	-21	swapper/0	09:35:35	0
2113171	99	47	36,8	cyclictest	0	-21	swapper/0	12:35:42	0
2113171	99	47	2,31	cyclictest	2221360	-21	/usr/sbin/munin	11:05:01	0
2113172	99	46	40,4	cyclictest	2161244	-21	basename	09:35:19	1
2113172	99	46	37,6	cyclictest	2256705	-21	gltestperf	11:55:22	1
2113172	99	46	37,6	cyclictest	0	-21	swapper/1	10:10:33	1
2113171	99	46	39,5	cyclictest	2232010	-21	aten2__	11:20:19	0
2113171	99	46	37,6	cyclictest	2158742	-21	sendmail_mailqu	09:30:44	0
2113171	99	46	37,5	cyclictest	2165977	-21	/usr/sbin/munin	09:40:45	0
2113171	99	46	25,18	cyclictest	0	-21	swapper/0	10:40:42	0
2113172	99	45	38,5	cyclictest	2137166	-21	sendmail_mailqu	08:40:51	1
2113172	99	45	36,6	cyclictest	2132772	-21	df_abs	08:25:24	1
2113172	99	45	32,11	cyclictest	2252445	-21	aten2__	11:50:22	1
2113171	99	45	39,4	cyclictest	2214686	-21	cron	10:55:01	0
2113171	99	45	38,5	cyclictest	2252883	-21	ssh	11:50:26	0
2113171	99	45	38,5	cyclictest	2133658	-21	kworker/u4:7+events_unbound	08:31:04	0
2113171	99	45	37,5	cyclictest	2114019	-21	grep	07:10:40	0
2113171	99	45	36,7	cyclictest	2135239	-21	aten_r7power_vo	08:35:21	0
2113171	99	45	33,6	cyclictest	2123439	-21	kworker/u4:13+events_unbound	08:15:21	0
2113171	99	45	28,12	cyclictest	2273803	-21	fschecks_count	12:15:25	0
2113171	99	45	26,16	cyclictest	0	-21	swapper/0	10:45:33	0
2113171	99	45	25,16	cyclictest	0	-21	swapper/0	08:10:00	0
2113172	99	44	6,33	cyclictest	2133658	-21	kworker/u4:7+rpciod	09:15:29	1
2113172	99	44	6,33	cyclictest	2133658	-21	kworker/u4:7+rpciod	09:15:28	1
2113172	99	44	37,6	cyclictest	2187039	-21	kworker/u4:19+events_unbound	10:15:02	1
2113172	99	44	37,5	cyclictest	2215586	-21	ntpq	10:55:30	1
2113172	99	44	37,5	cyclictest	2215586	-21	ntpq	10:55:29	1
2113172	99	44	37,5	cyclictest	2172240	-21	/usr/sbin/munin	09:50:24	1
2113172	99	44	36,6	cyclictest	2127778	-21	fschecks_time	08:05:23	1
2113171	99	44	37,5	cyclictest	2118814	-21	tune2fs	07:30:21	0
2113171	99	44	36,5	cyclictest	2133277	-21	grep	08:25:42	0
2113171	99	44	33,7	cyclictest	2182030	-21	/usr/sbin/munin	10:05:21	0
2113172	99	43	36,5	cyclictest	2122169	-21	kworker/u4:8+events_unbound	08:35:01	1
2113172	99	43	36,4	cyclictest	2191597	-21	aten2__	10:20:18	1
2113172	99	43	35,5	cyclictest	2119331	-21	switchtime	07:30:38	1
2113171	99	43	34,6	cyclictest	2129671	-21	unixbench-2d	08:10:40	0
2113171	99	43	33,7	cyclictest	2120700	-21	timerwakeupswit	07:35:39	0
2113172	99	42	36,3	cyclictest	0	-21	swapper/1	12:10:33	1
2113172	99	42	34,6	cyclictest	2127234	-21	unixbench_singl	08:00:41	1
2113172	99	42	33,7	cyclictest	2198137	-21	latency_hist	10:30:02	1
2113172	99	42	33,7	cyclictest	2198137	-21	latency_hist	10:30:01	1
2113171	99	42	34,6	cyclictest	2120873	-21	kworker/u4:6+events_unbound	07:52:04	0
2113171	99	42	33,6	cyclictest	2235918	-21	fschecks_count	11:25:24	0
2113171	99	42	3,14	cyclictest	2113170	-21	cyclictest	07:10:00	0
2113172	99	41	35,4	cyclictest	2091375	-21	kworker/u4:2+events_unbound	07:15:01	1
2113172	99	41	34,4	cyclictest	2167978	-21	latency_hist	09:45:00	1
2113172	99	41	33,5	cyclictest	2122629	-21	fschecks_count	07:45:23	1
2113171	99	41	31,7	cyclictest	2140266	-21	aten_r7power_cu	08:55:17	0
2113172	99	40	33,5	cyclictest	2123923	-21	fschecks_time	07:50:33	1
2113172	99	40	31,7	cyclictest	2139794	-21	switchtime	08:50:39	1
2113172	99	40	31,6	cyclictest	0	-21	swapper/1	08:25:02	1
2113171	99	40	34,4	cyclictest	2234122	-21	kworker/u4:1-rpciod	11:35:38	0
2113172	99	39	7,20	cyclictest	52	-21	kswapd0	11:15:07	1
2113172	99	39	29,6	cyclictest	0	-21	swapper/1	08:35:45	1
2113171	99	39	32,5	cyclictest	2132385	-21	kworker/u4:1+events_unbound	08:50:39	0
2113172	99	37	29,5	cyclictest	0	-21	swapper/1	08:55:37	1
2113172	99	37	28,6	cyclictest	0	-21	swapper/1	07:10:02	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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