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 Mon Dec 15, 2025 00:44:12)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2805653	99	107	81,21	cyclictest	53	-21	kswapd0	23:45:08	0
2805653	99	106	88,7	cyclictest	2831340	-21	kworker/u4:9+events_unbound	20:57:11	0
2805653	99	104	92,9	cyclictest	53	-21	kswapd0	00:25:09	0
2805653	99	98	90,6	cyclictest	2951505	-21	kworker/u4:9+events_unbound	23:27:43	0
2805653	99	95	88,5	cyclictest	2546567	-21	kworker/u4:0+events_unbound	21:02:11	0
2805653	99	95	87,6	cyclictest	2810728	-21	kworker/u4:4+events_unbound	19:46:59	0
2805653	99	93	78,11	cyclictest	53	-21	kswapd0	23:15:08	0
2805653	99	92	79,6	cyclictest	2806873	-21	kworker/u4:5+events_unbound	19:41:57	0
2805653	99	90	83,5	cyclictest	2546567	-21	kworker/u4:0+events_unbound	20:47:09	0
2805654	99	87	80,5	cyclictest	2918115	-21	kworker/u4:17+events_unbound	22:57:37	1
2805653	99	83	76,5	cyclictest	2955081	-21	kworker/u4:10+events_unbound	23:52:33	0
2805653	99	83	75,6	cyclictest	2826136	-21	kworker/u4:4+events_unbound	20:52:12	0
2805654	99	81	22,19	cyclictest	1058	-21	snmpd	20:50:33	1
2805654	99	78	70,6	cyclictest	2851163	-21	kworker/u4:7+events_unbound	21:30:01	1
2805654	99	75	70,3	cyclictest	2814569	-21	kworker/u4:9+events_unbound	20:07:00	1
2805654	99	74	68,4	cyclictest	2833964	-21	kworker/u4:13+events_unbound	21:00:02	1
2805654	99	73	4,53	cyclictest	37	-21	kcompactd0	00:15:34	1
2805654	99	71	39,29	cyclictest	2838008	-21	/usr/sbin/munin	21:10:39	1
2805654	99	71	30,36	cyclictest	0	-21	swapper/1	22:30:35	1
2805654	99	70	37,30	cyclictest	2915348	-21	apt	22:45:01	1
2805654	99	69	27,38	cyclictest	0	-21	swapper/1	00:25:31	1
2805653	99	69	40,19	cyclictest	2928276	-21	ssh	23:00:10	0
2805653	99	69	40,19	cyclictest	2928276	-21	ssh	23:00:10	0
2805654	99	68	5,22	cyclictest	2988482	-21	ssh	00:11:45	1
2805654	99	68	39,26	cyclictest	2954336	-21	timerandwakeup	23:30:39	1
2805654	99	68	37,28	cyclictest	2907618	-21	gltestperf	22:35:22	1
2805654	99	67	30,33	cyclictest	2971157	-21	grep	23:50:41	1
2805654	99	67	30,33	cyclictest	0	-21	swapper/1	23:25:34	1
2805654	99	66	4,27	cyclictest	2983331	-21	ssh	00:05:36	1
2805654	99	66	35,27	cyclictest	37	-21	kcompactd0	23:12:45	1
2805654	99	66	32,31	cyclictest	2870468	-21	ntp_kernel_pll_	21:50:27	1
2805654	99	66	29,34	cyclictest	2962293	-21	gcc	23:40:29	1
2805653	99	66	58,6	cyclictest	2955081	-21	kworker/u4:10+events_unbound	23:42:46	0
2805653	99	66	2,23	cyclictest	2932426	-21	apt-get	23:05:11	0
2805653	99	66	2,23	cyclictest	2932426	-21	apt-get	23:05:11	0
2805654	99	65	32,30	cyclictest	0	-21	swapper/1	22:10:20	1
2805654	99	65	30,32	cyclictest	2882252	-21	aten2__	22:05:33	1
2805654	99	65	28,34	cyclictest	2846264	-21	timerwakeupswit	21:20:39	1
2805654	99	64	31,30	cyclictest	0	-21	swapper/1	23:00:44	1
2805654	99	64	31,30	cyclictest	0	-21	swapper/1	23:00:43	1
2805654	99	64	29,33	cyclictest	2805651	-21	cyclictest	19:35:33	1
2805654	99	64	28,33	cyclictest	0	-21	swapper/1	21:30:32	1
2805654	99	63	55,6	cyclictest	2980598	-21	kworker/u4:6+events_unbound	00:20:14	1
2805654	99	63	29,31	cyclictest	0	-21	swapper/1	23:15:34	1
2805654	99	63	28,32	cyclictest	0	-21	swapper/1	23:05:22	1
2805654	99	63	28,32	cyclictest	0	-21	swapper/1	23:05:21	1
2805654	99	63	27,32	cyclictest	0	-21	swapper/1	23:35:32	1
2805654	99	63	26,33	cyclictest	0	-21	swapper/1	23:45:30	1
2805654	99	63	22,9	cyclictest	2839178	-21	kworker/u4:15-nfsiod	21:15:31	1
2805654	99	62	4,23	cyclictest	3003034	-21	ssh	00:30:02	1
2805654	99	62	4,23	cyclictest	3003034	-21	ssh	00:30:01	1
2805654	99	62	26,31	cyclictest	0	-21	swapper/1	19:20:01	1
2805654	99	62	24,6	cyclictest	0	-21	swapper/1	00:00:24	1
2805653	99	62	54,6	cyclictest	2812002	-21	kworker/u4:13+events_unbound	20:00:04	0
2805654	99	61	30,28	cyclictest	0	-21	swapper/1	22:20:22	1
2805654	99	61	29,28	cyclictest	0	-21	swapper/1	21:36:08	1
2805654	99	61	25,6	cyclictest	0	-21	swapper/1	21:05:35	1
2805654	99	61	25,32	cyclictest	0	-21	swapper/1	19:30:21	1
2805654	99	61	24,6	cyclictest	0	-21	swapper/1	00:35:28	1
2805654	99	61	24,4	cyclictest	0	-21	swapper/1	23:20:22	1
2805654	99	61	22,6	cyclictest	0	-21	swapper/1	22:15:34	1
2805654	99	61	21,8	cyclictest	0	-21	swapper/1	19:55:26	1
2805654	99	60	4,19	cyclictest	2974300	-21	sh	23:55:20	1
2805654	99	60	25,31	cyclictest	0	-21	swapper/1	22:00:17	1
2805653	99	60	51,6	cyclictest	0	-21	swapper/0	00:10:13	0
2805654	99	59	29,26	cyclictest	0	-21	swapper/1	22:50:34	1
2805654	99	59	27,5	cyclictest	2892218	-21	kworker/u4:4-rpciod	22:25:35	1
2805654	99	59	26,29	cyclictest	0	-21	swapper/1	19:25:29	1
2805654	99	59	24,7	cyclictest	0	-21	swapper/1	19:20:17	1
2805654	99	59	24,6	cyclictest	0	-21	swapper/1	19:10:33	1
2805654	99	59	24,6	cyclictest	0	-21	swapper/1	19:10:33	1
2805654	99	59	20,7	cyclictest	2816199	-21	cpu	19:50:17	1
2805653	99	59	52,5	cyclictest	2892218	-21	kworker/u4:4+events_unbound	22:20:01	0
2805654	99	58	27,4	cyclictest	2913822	-21	kworker/u4:13-rpciod	22:45:20	1
2805654	99	58	23,5	cyclictest	0	-21	swapper/1	21:45:21	1
2805654	99	58	21,7	cyclictest	2862804	-21	awk	21:40:40	1
2805653	99	58	51,5	cyclictest	2817110	-21	kworker/u4:5+events_unbound	20:32:07	0
2805653	99	58	49,7	cyclictest	2967809	-21	kworker/u4:0+events_unbound	00:00:17	0
2805653	99	58	44,12	cyclictest	0	-21	swapper/0	22:30:17	0
2805654	99	57	3,18	cyclictest	2877368	-21	sh	21:59:31	1
2805654	99	57	21,5	cyclictest	2546567	-21	kworker/u4:0-rpciod	20:30:28	1
2805654	99	57	16,9	cyclictest	0	-21	swapper/1	19:40:37	1
2805653	99	57	50,5	cyclictest	53	-21	kswapd0	22:29:37	0
2805653	99	57	50,5	cyclictest	53	-21	kswapd0	22:05:29	0
2805653	99	57	50,4	cyclictest	0	-21	swapper/0	22:10:17	0
2805653	99	57	41,9	cyclictest	0	-21	swapper/0	21:30:00	0
2805653	99	56	40,10	cyclictest	0	-21	swapper/0	22:55:25	0
2805654	99	55	24,5	cyclictest	2821862	-21	ntp_states	20:10:37	1
2805654	99	55	16,10	cyclictest	0	-21	swapper/1	20:49:59	1
2805654	99	54	45,6	cyclictest	2829335	-21	fschecks_time	20:40:21	1
2805653	99	54	46,6	cyclictest	2828770	-21	kworker/u4:11+events_unbound	20:38:01	0
2805653	99	54	39,6	cyclictest	2815839	-21	kworker/u4:1+events_unbound	19:51:01	0
2805654	99	53	21,4	cyclictest	0	-21	swapper/1	21:00:26	1
2805653	99	53	46,5	cyclictest	53	-21	kswapd0	22:40:12	0
2805653	99	53	44,5	cyclictest	2805651	-21	cyclictest	22:37:46	0
2805653	99	52	45,5	cyclictest	2806874	-21	kworker/u4:6+events_unbound	19:24:59	0
2805653	99	52	44,6	cyclictest	2909486	-21	kworker/u4:11+events_unbound	22:47:34	0
2805653	99	52	43,6	cyclictest	2938776	-21	kworker/u4:6-rpciod	23:35:18	0
2805653	99	52	43,6	cyclictest	2817332	-21	aten2__	19:55:20	0
2805653	99	51	43,6	cyclictest	397	-21	systemd-logind	21:22:14	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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