OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #7, slot #2

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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 792 highest latencies:

System rack7slot2.osadl.org (updated Tue Dec 10, 2024 00:44:05)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2211025	99	107	97,7	cyclictest	2282882	-21	kworker/u4:12+events_unbound	22:24:35	1
2211025	99	103	94,6	cyclictest	2168697	-21	kworker/u4:5+events_unbound	19:37:54	1
2211024	99	98	88,7	cyclictest	2373242	-21	kworker/u4:10+events_unbound	00:19:46	0
2211025	99	96	77,6	cyclictest	2212232	-21	kworker/u4:6+events_unbound	19:47:55	1
2211025	99	95	77,6	cyclictest	2214795	-21	kworker/u4:14+events_unbound	19:32:52	1
2211025	99	92	84,6	cyclictest	2168695	-21	kworker/u4:3+events_unbound	19:52:58	1
2211025	99	91	83,6	cyclictest	2251426	-21	kworker/u4:15+events_unbound	21:33:19	1
2211025	99	88	80,6	cyclictest	2348150	-21	kworker/u4:14+events_unbound	23:39:43	1
2211025	99	86	78,6	cyclictest	2210949	-21	kworker/u4:4+events_unbound	19:12:49	1
2211025	99	85	78,5	cyclictest	2308529	-21	kworker/u4:11+events_unbound	22:54:38	1
2211025	99	84	77,5	cyclictest	2228735	-21	kworker/u4:4+events_unbound	20:18:03	1
2211025	99	84	76,6	cyclictest	2239078	-21	kworker/u4:8+events_unbound	20:58:12	1
2211025	99	84	75,7	cyclictest	2290161	-21	kworker/u4:0+events_unbound	23:04:39	1
2211025	99	83	75,6	cyclictest	2379842	-21	kworker/u4:14+events_unbound	00:34:49	1
2211025	99	82	74,6	cyclictest	2373242	-21	kworker/u4:10+events_unbound	00:14:46	1
2211024	99	82	58,12	cyclictest	0	-21	swapper/0	23:40:08	0
2211025	99	81	73,6	cyclictest	2379430	-21	kworker/u4:9+events_unbound	00:24:47	1
2211025	99	81	73,6	cyclictest	2228732	-21	kworker/u4:0+events_unbound	21:13:17	1
2211025	99	80	72,6	cyclictest	2348147	-21	kworker/u4:10+events_unbound	23:49:44	1
2211024	99	79	70,6	cyclictest	2266259	-21	kworker/u4:11+events_unbound	21:43:22	0
2211024	99	74	65,6	cyclictest	2297581	-21	kworker/u4:4+events_unbound	22:39:37	0
2211025	99	73	66,5	cyclictest	2369642	-21	kworker/u4:4+events_unbound	00:09:58	1
2211025	99	73	66,5	cyclictest	2315457	-21	kworker/u4:9+events_unbound	23:44:43	1
2211025	99	72	61,7	cyclictest	2379841	-21	kworker/u4:13+events_unbound	00:28:59	1
2211024	99	71	62,6	cyclictest	2348147	-21	kworker/u4:10+events_unbound	23:50:01	0
2211024	99	71	62,6	cyclictest	2262615	-21	kworker/u4:4+events_unbound	21:54:29	0
2211024	99	70	30,29	cyclictest	256	50	irq/23-42890000.ethernet	21:35:06	0
2211025	99	66	49,6	cyclictest	2255199	-21	kworker/u4:3+events_unbound	21:54:59	1
2211024	99	66	42,8	cyclictest	2230076	-21	apt-get	20:25:08	0
2211024	99	65	56,7	cyclictest	2224942	-21	kworker/u4:4+events_unbound	20:03:03	0
2211024	99	63	28,24	cyclictest	54	-21	kswapd0	00:20:11	0
2211025	99	62	55,5	cyclictest	2234002	-21	kworker/u4:16+events_unbound	21:08:15	1
2211025	99	62	54,6	cyclictest	2234002	-21	kworker/u4:16+events_unbound	20:46:59	1
2211025	99	62	47,6	cyclictest	2282882	-21	kworker/u4:12+events_unbound	22:10:03	1
2211024	99	60	53,5	cyclictest	2301261	-21	kworker/u4:7+events_unbound	22:34:35	0
2211024	99	60	51,7	cyclictest	395	-21	systemd-logind	22:49:35	0
2211024	99	59	51,6	cyclictest	2212232	-21	kworker/u4:6+events_unbound	19:50:01	0
2211024	99	59	46,10	cyclictest	2365670	-21	ssh	00:01:08	0
2211024	99	59	42,7	cyclictest	2241627	-21	kworker/u4:1+events_unbound	21:25:59	0
2211025	99	58	51,5	cyclictest	2281383	-21	/usr/sbin/munin	22:05:18	1
2211025	99	58	50,5	cyclictest	2303586	-21	ntp_states	22:35:35	1
2211025	99	58	40,15	cyclictest	0	-21	swapper/1	22:30:31	1
2211025	99	57	6,48	cyclictest	2364913	-21	ssh	00:00:30	1
2211024	99	57	50,5	cyclictest	2326186	-21	kworker/u4:19+events_unbound	23:09:37	0
2211024	99	57	49,6	cyclictest	2366110	-21	kworker/u4:6+events_unbound	00:29:47	0
2211024	99	57	48,7	cyclictest	2224939	-21	kworker/u4:0+events_unbound	20:08:03	0
2211024	99	57	46,5	cyclictest	0	-21	swapper/0	21:30:08	0
2211025	99	56	49,5	cyclictest	2251426	-21	kworker/u4:15+events_unbound	21:25:02	1
2211025	99	56	4,36	cyclictest	2375647	-21	ssh	00:15:37	1
2211024	99	56	42,12	cyclictest	2296156	-21	netstat	22:25:23	0
2211025	99	55	48,5	cyclictest	2260351	-21	apt-get	21:35:09	1
2211024	99	55	46,6	cyclictest	2388592	-21	diskmemload	00:35:40	0
2211024	99	55	45,7	cyclictest	2211020	-21	cyclictest	21:58:49	0
2211025	99	53	47,4	cyclictest	2315457	-21	kworker/u4:9+events_unbound	23:06:59	1
2211025	99	53	39,5	cyclictest	2315458	-21	kworker/u4:13+events_unbound	23:26:47	1
2211025	99	53	38,10	cyclictest	0	-21	swapper/1	23:55:40	1
2211024	99	53	46,5	cyclictest	2332340	-21	/usr/sbin/munin	23:15:30	0
2211024	99	53	46,5	cyclictest	2329105	-21	unixbench-2d	23:10:41	0
2211024	99	53	30,20	cyclictest	2223680	-21	modprobe	20:00:00	0
2211025	99	52	45,5	cyclictest	2308528	-21	kworker/u4:10+events_unbound	22:45:03	1
2211025	99	52	42,8	cyclictest	2219872	-21	systemd	19:42:55	1
2211024	99	52	44,5	cyclictest	2213495	-21	kworker/u4:9+events_unbound	19:45:01	0
2211024	99	52	40,9	cyclictest	2368141	-21	gltestperf	00:05:20	0
2211024	99	52	34,16	cyclictest	2349406	-21	munin-plugin-st	23:40:00	0
2211025	99	51	44,5	cyclictest	2282882	-21	kworker/u4:12+events_unbound	22:17:01	1
2211024	99	51	42,7	cyclictest	2340870	-21	kworker/u4:4+events_unbound	23:29:43	0
2211024	99	51	42,7	cyclictest	2221678	-21	gltestperf	19:50:21	0
2211024	99	51	10,23	cyclictest	2241672	-21	diskmemload	23:02:50	0
2211025	99	50	44,4	cyclictest	2232648	-21	kworker/u4:3+events_unbound	20:35:13	1
2211025	99	50	43,5	cyclictest	2228735	-21	kworker/u4:4+events_unbound	20:43:09	1
2211025	99	50	42,6	cyclictest	2290161	-21	kworker/u4:0+events_unbound	22:42:49	1
2211025	99	50	42,6	cyclictest	2210949	-21	kworker/u4:4+events_unbound	19:19:59	1
2211024	99	50	44,4	cyclictest	0	-21	swapper/0	23:20:41	0
2211024	99	50	30,17	cyclictest	0	-21	swapper/0	22:15:27	0
2211024	99	50	28,19	cyclictest	0	-21	swapper/0	20:15:39	0
2211025	99	49	42,5	cyclictest	2278315	-21	sh	22:00:34	1
2211025	99	49	42,5	cyclictest	2266259	-21	kworker/u4:11+events_unbound	21:46:01	1
2211025	99	49	41,6	cyclictest	2315457	-21	kworker/u4:9+events_unbound	23:22:57	1
2211025	99	49	41,6	cyclictest	2224951	-21	systemd	20:03:01	1
2211024	99	49	41,6	cyclictest	2233996	-21	kworker/u4:6+events_unbound	20:53:09	0
2211024	99	49	39,7	cyclictest	2247149	-21	unixbench_singl	21:15:41	0
2211025	99	48	42,4	cyclictest	2212232	-21	kworker/u4:6+events_unbound	19:56:00	1
2211025	99	48	38,7	cyclictest	2215026	-21	aten2__	19:25:16	1
2211025	99	48	36,8	cyclictest	2298954	-21	sh	22:30:00	1
2211024	99	48	38,6	cyclictest	2340869	-21	kworker/u4:3-rpciod	23:30:28	0
2211024	99	48	34,11	cyclictest	2241628	-21	kworker/u4:2-rpciod	21:20:35	0
2211024	99	48	27,19	cyclictest	2281938	-21	open_files	22:05:36	0
2211025	99	47	42,4	cyclictest	2243799	-21	kworker/u4:6+events_unbound	21:20:06	1
2211025	99	47	41,4	cyclictest	2319045	-21	kworker/u4:10+events_unbound	22:59:58	1
2211025	99	47	39,6	cyclictest	2213496	-21	kworker/u4:10+events_unbound	19:23:58	1
2211025	99	47	38,7	cyclictest	2277307	-21	latency_hist	22:00:00	1
2211025	99	47	37,7	cyclictest	2230076	-21	apt-get	20:25:00	1
2211025	99	47	36,8	cyclictest	2225941	-21	switchtime	20:05:39	1
2211025	99	47	32,5	cyclictest	2228732	-21	kworker/u4:0+events_unbound	21:18:59	1
2211024	99	47	40,5	cyclictest	2215302	-21	fschecks_time	19:25:19	0
2211024	99	47	39,6	cyclictest	2211020	-21	cyclictest	22:55:23	0
2211024	99	47	39,5	cyclictest	2295260	-21	cron	22:24:59	0
2211024	99	47	27,17	cyclictest	0	-21	swapper/0	22:10:39	0
2211024	99	47	27,17	cyclictest	0	-21	swapper/0	21:00:16	0
2211025	99	46	40,5	cyclictest	2379842	-21	kworker/u4:14+events_unbound	00:39:59	1
2211025	99	46	39,5	cyclictest	2333604	-21	kworker/u4:2+events_unbound	23:19:01	1
2211024	99	46	36,7	cyclictest	0	-21	swapper/0	20:20:37	0
2211024	99	46	1,10	cyclictest	2243134	-21	unixbench_multi	21:10:40	0
2211025	99	45	5,34	cyclictest	2357013	-21	ssh	23:50:17	1
2211024	99	45	36,7	cyclictest	2384531	-21	aten_r7power_vo	00:30:21	0
2211025	99	44	35,7	cyclictest	2239495	-21	df_abs	21:00:17	1
2211025	99	44	35,7	cyclictest	0	-21	swapper/1	23:10:11	1
2211025	99	44	34,6	cyclictest	0	-21	swapper/1	23:30:29	1
2211024	99	44	37,5	cyclictest	2371271	-21	aten2__	00:10:17	0
2211024	99	44	36,6	cyclictest	2231982	-21	gltestperf	20:30:21	0
2211024	99	44	35,7	cyclictest	2307171	-21	ntp_offset	22:40:34	0
2211024	99	44	32,8	cyclictest	0	-21	swapper/0	23:50:28	0
2211024	99	44	24,17	cyclictest	2213497	-21	kworker/u4:13+events_unbound	19:35:01	0
2211024	99	43	36,5	cyclictest	2241629	-21	kworker/u4:4-rpciod	21:10:00	0
2211024	99	43	33,7	cyclictest	2235806	-21	fschecks_time	20:45:20	0
2211024	99	43	28,10	cyclictest	0	-21	swapper/0	20:35:09	0
2211025	99	42	35,5	cyclictest	2237546	-21	switchtime	20:50:35	1
2211025	99	42	35,5	cyclictest	2213497	-21	kworker/u4:13+events_unbound	20:10:02	1
2211025	99	42	33,6	cyclictest	2241672	-21	diskmemload	21:43:16	1
2211024	99	42	34,6	cyclictest	2278364	-21	/usr/sbin/munin	22:00:36	0
2211024	99	42	34,6	cyclictest	2226690	-21	fschecks_count	20:10:17	0
2211024	99	42	34,5	cyclictest	2290161	-21	kworker/u4:0-events_freezable_power_	22:50:32	0
2211024	99	42	31,7	cyclictest	0	-21	swapper/0	21:45:31	0
2211024	99	41	31,8	cyclictest	2360796	-21	df_abs	23:55:18	0
2211024	99	40	31,7	cyclictest	2211545	-21	gltestperf	19:10:21	0
2211024	99	40	31,6	cyclictest	0	-21	swapper/0	20:55:21	0
2211024	99	40	30,8	cyclictest	2213744	-21	aten2__	19:20:14	0
2211025	99	39	32,5	cyclictest	2228734	-21	kworker/u4:2+events_unbound	20:28:01	1
2211025	99	39	30,7	cyclictest	2232774	-21	latency_hist	20:35:01	1
2211024	99	39	31,6	cyclictest	2234461	-21	fschecks_count	20:40:19	0
2211024	99	39	31,5	cyclictest	0	-21	swapper/0	19:15:41	0
2211024	99	38	31,5	cyclictest	2217834	-21	fschecks_time	19:35:20	0
2211025	99	35	25,7	cyclictest	0	-21	swapper/1	19:10:02	1
2211024	99	29	20,7	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