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 Wed Apr 15, 2026 00:44:11)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2260193	99	183	165,14	cyclictest	53	-21	kswapd0	00:15:11	0
2260193	99	183	165,14	cyclictest	53	-21	kswapd0	00:15:11	0
2260193	99	105	90,6	cyclictest	2303194	-21	kworker/u4:7+events_unbound	21:56:59	0
2260196	99	100	93,5	cyclictest	2454528	-21	kworker/u4:8+events_unbound	00:27:26	1
2260196	99	100	92,6	cyclictest	2334730	-21	kworker/u4:5+events_unbound	22:02:00	1
2260196	99	97	89,6	cyclictest	2450009	-21	kworker/u4:5+events_unbound	00:07:24	1
2260193	99	96	32,34	cyclictest	0	-21	swapper/0	19:10:01	0
2260193	99	93	85,6	cyclictest	2334727	-21	kworker/u4:1+events_unbound	22:17:02	0
2260196	99	92	86,4	cyclictest	2279507	-21	kworker/u4:2+events_unbound	21:31:56	1
2260193	99	92	79,6	cyclictest	2440995	-21	kworker/u4:6+events_unbound	00:02:23	0
2260196	99	89	71,5	cyclictest	2365721	-21	kworker/u4:5+events_unbound	22:57:13	1
2260196	99	84	78,4	cyclictest	2454529	-21	kworker/u4:9+events_unbound	00:12:25	1
2260193	99	82	73,5	cyclictest	2247572	-21	kworker/u4:13+events_unbound	20:05:00	0
2260196	99	77	68,6	cyclictest	2245002	-21	kworker/u4:8+events_unbound	19:57:31	1
2260193	99	77	70,5	cyclictest	2307140	-21	kworker/u4:8+events_unbound	21:45:00	0
2260193	99	76	67,6	cyclictest	2467440	-21	kworker/u4:12+events_unbound	00:37:28	0
2260193	99	75	67,5	cyclictest	2365721	-21	kworker/u4:5+events_unbound	22:37:08	0
2260196	99	74	66,6	cyclictest	2293960	-21	kworker/u4:4+events_unbound	21:36:56	1
2260196	99	73	53,9	cyclictest	2282050	-21	kworker/u4:11+events_unbound	21:06:50	1
2260193	99	73	64,6	cyclictest	2282050	-21	kworker/u4:11+events_unbound	20:46:43	0
2260196	99	72	64,6	cyclictest	2450009	-21	kworker/u4:5+events_unbound	00:17:26	1
2260196	99	72	64,6	cyclictest	2450009	-21	kworker/u4:5+events_unbound	00:17:26	1
2260193	99	72	58,9	cyclictest	2445527	-21	kworker/u4:3+xprtiod	00:05:10	0
2260196	99	70	62,6	cyclictest	2303194	-21	kworker/u4:7+events_unbound	22:27:06	1
2260196	99	70	59,8	cyclictest	2334728	-21	kworker/u4:2+events_unbound	22:07:01	1
2260196	99	70	59,8	cyclictest	2334728	-21	kworker/u4:2+events_unbound	22:07:00	1
2260196	99	68	61,5	cyclictest	2401100	-21	kworker/u4:8+events_unbound	23:12:14	1
2260193	99	68	60,6	cyclictest	2414631	-21	kworker/u4:4+events_unbound	23:27:17	0
2260196	99	67	59,6	cyclictest	2365721	-21	kworker/u4:5+events_unbound	22:32:07	1
2260196	99	66	56,7	cyclictest	2261414	-21	kworker/u4:5+events_unbound	19:40:01	1
2260196	99	65	58,5	cyclictest	2262703	-21	kworker/u4:11+events_unbound	19:35:02	1
2260193	99	65	58,5	cyclictest	2472441	-21	sshd	00:32:28	0
2260196	99	63	51,9	cyclictest	37	-21	kcompactd0	22:20:37	1
2260193	99	62	53,6	cyclictest	2379315	-21	kworker/u4:9+events_unbound	22:50:00	0
2260193	99	62	52,7	cyclictest	2279507	-21	kworker/u4:2+events_unbound	20:56:48	0
2260193	99	62	52,7	cyclictest	2279507	-21	kworker/u4:2+events_unbound	20:56:47	0
2260196	99	61	54,5	cyclictest	2316353	-21	kworker/u4:1+events_unbound	21:40:03	1
2260196	99	61	50,9	cyclictest	2293632	-21	systemd	21:11:50	1
2260196	99	61	44,6	cyclictest	2275573	-21	kworker/u4:18+events_unbound	20:21:39	1
2260193	99	60	51,6	cyclictest	2275572	-21	kworker/u4:9+events_unbound	20:26:40	0
2260196	99	59	43,7	cyclictest	2283321	-21	kworker/u4:13+events_unbound	21:50:45	1
2260193	99	59	53,4	cyclictest	2334727	-21	kworker/u4:1+events_unbound	22:42:10	0
2260196	99	58	51,5	cyclictest	2267894	-21	kworker/u4:14+events_unbound	19:41:31	1
2260196	99	58	50,6	cyclictest	2261414	-21	kworker/u4:5+events_unbound	19:55:01	1
2260193	99	58	52,4	cyclictest	2247572	-21	kworker/u4:13+events_unbound	19:30:02	0
2260193	99	57	49,6	cyclictest	2405600	-21	kworker/u4:1+events_unbound	23:17:15	0
2260193	99	57	48,7	cyclictest	2272991	-21	systemd	19:56:33	0
2260193	99	57	40,14	cyclictest	1053	-21	sshd	20:15:15	0
2260193	99	57	35,19	cyclictest	2291594	-21	diskmemload	21:10:17	0
2260196	99	56	46,7	cyclictest	2270453	-21	systemd	19:46:32	1
2260193	99	56	48,6	cyclictest	2258924	-21	kworker/u4:1+events_unbound	19:11:24	0
2260193	99	56	48,6	cyclictest	2258924	-21	kworker/u4:1+events_unbound	19:11:23	0
2260193	99	56	48,5	cyclictest	0	-21	swapper/0	23:10:12	0
2260193	99	56	46,6	cyclictest	2417049	-21	cut	23:30:19	0
2260193	99	56	40,12	cyclictest	2310253	-21	if_eth0	21:30:23	0
2260196	99	55	48,5	cyclictest	2260190	-21	cyclictest	23:47:19	1
2260196	99	55	43,9	cyclictest	2413214	-21	grep	23:25:36	1
2260196	99	54	47,5	cyclictest	2476875	-21	systemd	00:37:29	1
2260196	99	54	47,5	cyclictest	2374789	-21	kworker/u4:4+events_unbound	22:42:32	1
2260196	99	54	46,5	cyclictest	2275573	-21	kworker/u4:18+events_unbound	20:30:01	1
2260193	99	54	48,4	cyclictest	2282050	-21	kworker/u4:11+events_unbound	21:21:54	0
2260193	99	54	35,14	cyclictest	2381715	-21	fschecks_time	22:50:22	0
2260196	99	53	45,6	cyclictest	2374789	-21	kworker/u4:4+events_unbound	22:47:09	1
2260193	99	53	45,5	cyclictest	2260129	-21	kworker/u4:3+events_unbound	19:51:34	0
2260196	99	52	44,6	cyclictest	2387638	-21	kworker/u4:14+events_unbound	23:09:42	1
2260193	99	52	45,5	cyclictest	2462910	-21	kworker/u4:3+events_unbound	00:22:28	0
2260193	99	52	43,6	cyclictest	2359312	-21	sed	22:25:16	0
2260196	99	51	7,27	cyclictest	2301501	-21	ssh	21:20:35	1
2260196	99	51	43,6	cyclictest	2390615	-21	grep	23:00:22	1
2260196	99	51	43,5	cyclictest	0	-21	swapper/1	00:00:12	1
2260196	99	51	41,7	cyclictest	2286379	-21	df_abs	20:50:17	1
2260193	99	51	43,5	cyclictest	2425947	-21	ssh	23:40:21	0
2260193	99	51	29,20	cyclictest	2421523	-21	fschecks_time	23:35:19	0
2260196	99	50	43,5	cyclictest	2414629	-21	kworker/u4:3+events_unbound	23:37:11	1
2260196	99	50	41,7	cyclictest	2440996	-21	kworker/u4:7+events_unbound	23:57:54	1
2260196	99	50	41,7	cyclictest	2440996	-21	kworker/u4:7+events_unbound	23:57:54	1
2260193	99	50	44,4	cyclictest	1	-21	systemd	22:22:02	0
2260193	99	50	43,5	cyclictest	53	-21	kswapd0	21:50:06	0
2260193	99	50	41,6	cyclictest	2432032	-21	kworker/u4:8+events_unbound	23:47:19	0
2260196	99	49	5,30	cyclictest	2296974	-21	ssh	21:15:37	1
2260196	99	49	42,5	cyclictest	2278270	-21	sendmail	20:20:01	1
2260193	99	49	43,4	cyclictest	2365719	-21	kworker/u4:3+events_unbound	23:02:14	0
2260193	99	49	42,5	cyclictest	2260190	-21	cyclictest	21:27:45	0
2260196	99	48	8,33	cyclictest	2408656	-21	ssh	23:20:31	1
2260196	99	48	41,5	cyclictest	2260481	-21	aten_r7power_vo	19:10:15	1
2260196	99	48	41,5	cyclictest	2260481	-21	aten_r7power_vo	19:10:15	1
2260196	99	48	40,6	cyclictest	2333493	-21	timerwakeupswit	21:55:39	1
2260193	99	48	41,5	cyclictest	2385770	-21	aten2__	22:55:16	0
2260193	99	48	32,14	cyclictest	2266659	-21	basename	19:35:01	0
2260196	99	47	39,6	cyclictest	2324087	-21	ldconfig	21:45:29	1
2260196	99	47	36,8	cyclictest	2438578	-21	idleruntime-cro	23:55:00	1
2260196	99	47	36,8	cyclictest	2425753	-21	aten_r7power_po	23:40:18	1
2260196	99	47	35,8	cyclictest	0	-21	swapper/1	00:30:29	1
2260193	99	47	39,6	cyclictest	2296308	-21	/usr/sbin/munin	21:15:19	0
2260193	99	47	38,7	cyclictest	2453370	-21	unixbench-2d	00:10:40	0
2260193	99	47	37,8	cyclictest	2435001	-21	/usr/sbin/munin	23:50:20	0
2260193	99	47	36,9	cyclictest	2262783	-21	latency_hist	19:20:01	0
2260193	99	47	29,13	cyclictest	2288551	-21	apt-get	21:00:09	0
2260196	99	46	39,5	cyclictest	2350443	-21	fschecks_count	22:15:19	1
2260196	99	46	39,5	cyclictest	2285243	-21	fschecks_time	20:45:26	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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