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 Fri Jul 31, 2026 00:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2262627	99	111	101,6	cyclictest	2327261	-21	kworker/u4:3+events_unbound	22:12:15	1
2262626	99	102	94,6	cyclictest	2420195	-21	kworker/u4:3+events_unbound	23:42:26	0
2262626	99	98	90,6	cyclictest	2406665	-21	kworker/u4:4+events_unbound	23:47:24	0
2262626	99	97	92,3	cyclictest	2411192	-21	kworker/u4:11+events_unbound	23:57:28	0
2262626	99	93	84,6	cyclictest	2464114	-21	kworker/u4:8+events_unbound	00:32:36	0
2262627	99	87	69,11	cyclictest	2424020	-21	kworker/u4:14+xprtiod	23:40:12	1
2262626	99	87	78,7	cyclictest	2424020	-21	kworker/u4:14+events_unbound	23:52:28	0
2262626	99	87	78,7	cyclictest	2424020	-21	kworker/u4:14+events_unbound	23:52:28	0
2262626	99	85	76,6	cyclictest	2411192	-21	kworker/u4:11+events_unbound	23:32:24	0
2262626	99	85	76,6	cyclictest	2336358	-21	kworker/u4:5+events_unbound	22:37:18	0
2262626	99	85	75,7	cyclictest	2349893	-21	kworker/u4:16+events_unbound	22:17:15	0
2262626	99	82	62,17	cyclictest	2262564	-21	kworker/u4:1+events_unbound	19:40:00	0
2262627	99	75	3,66	cyclictest	2463110	-21	ssh	00:20:32	1
2262626	99	75	64,6	cyclictest	2371495	-21	kworker/u4:0+events_unbound	23:02:18	0
2262626	99	75	61,11	cyclictest	53	-21	kswapd0	22:05:10	0
2262626	99	73	66,5	cyclictest	2296070	-21	kworker/u4:3+events_unbound	21:27:12	0
2262626	99	72	62,6	cyclictest	2406667	-21	kworker/u4:8+events_unbound	23:17:21	0
2262626	99	72	62,6	cyclictest	2406667	-21	kworker/u4:8+events_unbound	23:17:20	0
2262627	99	69	42,25	cyclictest	2275029	-21	sendmail_mailqu	19:55:38	1
2262627	99	69	34,32	cyclictest	2294919	-21	unixbench-2d	21:10:43	1
2262627	99	68	3,18	cyclictest	2317006	-21	ps	21:35:37	1
2262627	99	67	52,10	cyclictest	2402190	-21	kworker/u4:6-rpciod	23:55:14	1
2262627	99	67	33,29	cyclictest	0	-21	swapper/1	22:15:29	1
2262626	99	67	3,23	cyclictest	2275665	-21	apt-get	20:00:19	0
2262626	99	66	58,6	cyclictest	2429175	-21	kworker/u4:16+events_unbound	00:02:32	0
2262626	99	66	54,8	cyclictest	2325457	-21	fschecks_time	21:45:19	0
2262627	99	65	31,31	cyclictest	2459006	-21	timerwakeupswit	00:15:41	1
2262627	99	65	31,30	cyclictest	0	-21	swapper/1	21:45:34	1
2262627	99	64	46,6	cyclictest	2296073	-21	kworker/u4:7+events_unbound	21:45:01	1
2262626	99	64	55,6	cyclictest	2464777	-21	kworker/u4:11+events_unbound	00:22:34	0
2262627	99	63	51,8	cyclictest	2336358	-21	kworker/u4:5+events_unbound	22:02:15	1
2262627	99	63	31,30	cyclictest	2431158	-21	aten_r7power_en	23:45:15	1
2262627	99	63	31,29	cyclictest	0	-21	swapper/1	20:35:00	1
2262627	99	63	29,31	cyclictest	0	-21	swapper/1	22:05:02	1
2262627	99	63	29,26	cyclictest	2309695	-21	kworker/u4:2+rpciod	21:30:02	1
2262626	99	63	55,6	cyclictest	53	-21	kswapd0	00:40:01	0
2262627	99	62	40,19	cyclictest	2414571	-21	timerwakeupswit	23:25:42	1
2262627	99	62	36,24	cyclictest	2426392	-21	apt-config	23:40:00	1
2262627	99	62	33,27	cyclictest	0	-21	swapper/1	21:55:21	1
2262627	99	62	29,30	cyclictest	2298659	-21	gltestperf	21:15:24	1
2262627	99	62	29,30	cyclictest	0	-21	swapper/1	23:50:25	1
2262627	99	62	29,30	cyclictest	0	-21	swapper/1	23:50:24	1
2262626	99	62	54,6	cyclictest	2420197	-21	kworker/u4:13+events_unbound	23:37:25	0
2262627	99	61	5,51	cyclictest	2374372	-21	ssh	22:40:28	1
2262627	99	61	33,26	cyclictest	0	-21	swapper/1	00:10:33	1
2262627	99	61	32,26	cyclictest	0	-21	swapper/1	20:05:33	1
2262627	99	61	3,15	cyclictest	2360513	-21	apt-get	22:25:15	1
2262627	99	61	30,27	cyclictest	0	-21	swapper/1	00:30:17	1
2262627	99	61	29,29	cyclictest	0	-21	swapper/1	00:00:38	1
2262627	99	61	28,30	cyclictest	0	-21	swapper/1	00:30:01	1
2262627	99	61	26,31	cyclictest	0	-21	swapper/1	22:35:16	1
2262627	99	61	2,17	cyclictest	2387751	-21	ssh	22:55:37	1
2262627	99	61	2,17	cyclictest	2265913	-21	ntpq	19:20:23	1
2262627	99	60	32,25	cyclictest	0	-21	swapper/1	20:25:20	1
2262627	99	60	32,25	cyclictest	0	-21	swapper/1	20:20:24	1
2262627	99	60	32,24	cyclictest	0	-21	swapper/1	00:35:37	1
2262627	99	60	29,28	cyclictest	2386681	-21	cat	22:55:01	1
2262627	99	60	29,28	cyclictest	0	-21	swapper/1	23:15:39	1
2262627	99	60	29,28	cyclictest	0	-21	swapper/1	23:15:38	1
2262627	99	60	2,8	cyclictest	2448900	-21	apt-get	00:05:14	1
2262627	99	60	27,30	cyclictest	0	-21	swapper/1	22:45:18	1
2262627	99	60	27,30	cyclictest	0	-21	swapper/1	20:15:16	1
2262627	99	60	2,18	cyclictest	2356797	-21	ntpq	22:20:24	1
2262626	99	60	53,5	cyclictest	2455665	-21	kworker/u4:5+events_unbound	00:27:35	0
2262626	99	60	49,5	cyclictest	2374209	-21	/usr/sbin/munin	22:40:22	0
2262626	99	60	48,7	cyclictest	2289893	-21	df	20:55:17	0
2262626	99	60	45,13	cyclictest	2286969	-21	kworker/u4:11+events_unbound	22:15:01	0
2262627	99	59	28,27	cyclictest	0	-21	swapper/1	19:40:38	1
2262627	99	59	23,33	cyclictest	0	-21	swapper/1	21:50:16	1
2262627	99	59	1,16	cyclictest	2264629	-21	ntpq	19:15:28	1
2262627	99	58	3,6	cyclictest	2400103	-21	ssh	23:10:13	1
2262627	99	58	28,27	cyclictest	0	-21	swapper/1	21:20:12	1
2262627	99	58	26,30	cyclictest	0	-21	swapper/1	23:20:26	1
2262627	99	57	3,9	cyclictest	2392233	-21	ssh	23:00:41	1
2262627	99	57	22,32	cyclictest	0	-21	swapper/1	21:25:18	1
2262627	99	57	2,14	cyclictest	2269838	-21	ntpq	19:35:34	1
2262626	99	57	49,6	cyclictest	2331801	-21	kworker/u4:4+events_unbound	21:59:44	0
2262626	99	57	48,6	cyclictest	2293683	-21	/usr/sbin/munin	21:10:14	0
2262626	99	57	44,7	cyclictest	0	-21	swapper/0	23:25:29	0
2262627	99	56	3,15	cyclictest	2396424	-21	ssh	23:05:28	1
2262627	99	56	26,28	cyclictest	2288868	-21	head	20:50:19	1
2262627	99	56	23,29	cyclictest	0	-21	swapper/1	20:00:47	1
2262627	99	56	2,12	cyclictest	2365567	-21	ssh	22:30:25	1
2262627	99	56	16,37	cyclictest	0	-21	swapper/1	23:30:41	1
2262626	99	56	50,5	cyclictest	2263862	-21	kworker/u4:9+events_unbound	19:17:01	0
2262626	99	56	46,5	cyclictest	2329820	-21	/usr/sbin/munin	21:50:20	0
2262627	99	55	24,29	cyclictest	0	-21	swapper/1	21:00:20	1
2262627	99	55	1,13	cyclictest	2272998	-21	/usr/sbin/munin	19:50:39	1
2262626	99	55	48,5	cyclictest	2358198	-21	kworker/u4:19+events_unbound	22:25:01	0
2262627	99	54	26,25	cyclictest	2263860	-21	kworker/u4:7+rpciod	19:45:20	1
2262627	99	54	24,27	cyclictest	0	-21	swapper/1	20:55:20	1
2262627	99	54	1,13	cyclictest	2268548	-21	ntp_states	19:30:34	1
2262626	99	54	47,5	cyclictest	2252488	-21	kworker/u4:17+events_unbound	20:10:01	0
2262626	99	54	2,6	cyclictest	2312340	-21	ssh	21:30:28	0
2262627	99	53	25,25	cyclictest	0	-21	swapper/1	19:10:19	1
2262627	99	53	22,29	cyclictest	2284956	-21	gltestperf	20:35:19	1
2262626	99	53	45,6	cyclictest	2252488	-21	kworker/u4:17+events_unbound	20:27:08	0
2262627	99	52	9,9	cyclictest	1073	-21	snmpd	19:29:47	1
2262627	99	52	2,11	cyclictest	2285890	-21	apt-get	20:40:14	1
2262627	99	52	20,29	cyclictest	0	-21	swapper/1	20:45:16	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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