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 Thu Mar 19, 2026 00:44:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2819320	99	122	99,9	cyclictest	2889031	-21	kworker/u4:14+events_unbound	22:05:39	0
2819320	99	122	99,9	cyclictest	2889031	-21	kworker/u4:14+events_unbound	22:05:38	0
2819321	99	116	97,7	cyclictest	2981351	-21	kworker/u4:37+events_unbound	23:41:01	1
2819321	99	115	99,6	cyclictest	3025429	-21	kworker/u4:3+events_unbound	00:28:51	1
2819321	99	114	106,6	cyclictest	2973052	-21	kworker/u4:2+events_unbound	23:36:01	1
2819321	99	105	97,6	cyclictest	2955106	-21	kworker/u4:7+events_unbound	23:10:51	1
2819321	99	102	93,6	cyclictest	2946191	-21	kworker/u4:0+events_unbound	23:15:52	1
2819321	99	99	92,5	cyclictest	2999229	-21	kworker/u4:5+events_unbound	23:58:22	1
2819321	99	89	73,6	cyclictest	2919971	-21	kworker/u4:3+events_unbound	22:45:47	1
2819320	99	89	82,5	cyclictest	2889029	-21	kworker/u4:12+events_unbound	22:00:36	0
2819320	99	89	70,7	cyclictest	2919971	-21	kworker/u4:3+events_unbound	22:50:48	0
2819321	99	88	81,5	cyclictest	2919975	-21	kworker/u4:9+events_unbound	22:30:44	1
2819321	99	87	78,6	cyclictest	2833517	-21	kworker/u4:9+events_unbound	20:45:21	1
2819321	99	86	79,5	cyclictest	3029899	-21	kworker/u4:7+events_unbound	00:33:52	1
2819320	99	83	75,6	cyclictest	2924425	-21	kworker/u4:14+events_unbound	22:35:45	0
2819320	99	82	71,8	cyclictest	2861681	-21	kworker/u4:5+events_unbound	21:30:32	0
2819320	99	82	61,7	cyclictest	2985838	-21	kworker/u4:1+events_unbound	23:50:03	0
2819321	99	80	72,6	cyclictest	2842527	-21	kworker/u4:2+events_unbound	20:50:22	1
2819320	99	79	60,8	cyclictest	2915504	-21	kworker/u4:0+events_unbound	22:25:00	0
2819320	99	78	71,5	cyclictest	2830951	-21	kworker/u4:7+events_unbound	19:55:11	0
2819320	99	78	71,5	cyclictest	2830951	-21	kworker/u4:7+events_unbound	19:55:11	0
2819320	99	78	61,7	cyclictest	2915505	-21	kworker/u4:1+events_unbound	22:25:43	0
2819320	99	78	61,7	cyclictest	2915505	-21	kworker/u4:1+events_unbound	22:25:43	0
2819321	99	77	61,7	cyclictest	2924425	-21	kworker/u4:14+events_unbound	22:40:02	1
2819321	99	76	62,5	cyclictest	2818045	-21	kworker/u4:10+events_unbound	19:10:05	1
2819321	99	76	56,12	cyclictest	2948130	-21	cron	23:00:00	1
2819320	99	76	69,5	cyclictest	2919975	-21	kworker/u4:9+events_unbound	22:40:46	0
2819320	99	75	68,5	cyclictest	3020975	-21	kworker/u4:7+events_unbound	00:23:50	0
2819321	99	74	66,6	cyclictest	2973052	-21	kworker/u4:2+events_unbound	23:30:57	1
2819320	99	73	65,6	cyclictest	2946191	-21	kworker/u4:0+events_unbound	23:05:49	0
2819321	99	72	65,5	cyclictest	2866239	-21	kworker/u4:11+events_unbound	22:15:40	1
2819320	99	72	63,6	cyclictest	2984767	-21	switchtime	23:40:38	0
2819321	99	71	63,6	cyclictest	2821815	-21	kworker/u4:6+events_unbound	19:25:08	1
2819320	99	71	57,5	cyclictest	2857113	-21	kworker/u4:10+events_unbound	21:25:31	0
2819320	99	70	57,9	cyclictest	53	-21	kswapd0	23:40:01	0
2819320	99	69	56,9	cyclictest	53	-21	kswapd0	00:30:00	0
2819320	99	68	61,5	cyclictest	2977501	-21	kworker/u4:13+events_unbound	23:55:20	0
2819320	99	68	60,6	cyclictest	2959585	-21	kworker/u4:6+events_unbound	23:25:56	0
2819320	99	68	54,6	cyclictest	3007540	-21	kworker/u4:14+events_unbound	00:13:45	0
2819320	99	67	55,8	cyclictest	2815601	-21	kworker/u4:3+events_unbound	21:20:29	0
2819321	99	64	57,5	cyclictest	2815601	-21	kworker/u4:3+events_unbound	19:20:07	1
2819320	99	64	56,6	cyclictest	2842527	-21	kworker/u4:2+events_unbound	20:45:00	0
2819320	99	64	3,57	cyclictest	2905333	-21	rm	22:10:40	0
2819321	99	63	56,5	cyclictest	2870822	-21	kworker/u4:3+events_unbound	21:40:00	1
2819321	99	63	55,6	cyclictest	2823124	-21	kworker/u4:0+events_unbound	19:30:09	1
2819321	99	63	54,6	cyclictest	53	-21	kswapd0	21:40:33	1
2819320	99	63	56,5	cyclictest	3034324	-21	kworker/u4:8+events_unbound	00:38:51	0
2819320	99	62	47,6	cyclictest	2999225	-21	kworker/u4:1+events_unbound	00:05:00	0
2819321	99	61	53,5	cyclictest	0	-21	swapper/1	00:15:35	1
2819321	99	61	46,6	cyclictest	2879300	-21	kworker/u4:6+events_unbound	21:47:59	1
2819320	99	61	43,6	cyclictest	2955107	-21	kworker/u4:8+events_unbound	23:16:25	0
2819321	99	60	53,5	cyclictest	2815601	-21	kworker/u4:3+events_unbound	19:45:11	1
2819320	99	60	52,6	cyclictest	3025434	-21	kworker/u4:11+events_unbound	00:31:07	0
2819320	99	59	51,6	cyclictest	2990302	-21	kworker/u4:3+events_unbound	23:47:22	0
2819320	99	59	46,6	cyclictest	3003731	-21	kworker/u4:10+events_unbound	00:05:02	0
2819320	99	58	46,9	cyclictest	3015084	-21	/usr/sbin/munin	00:15:22	0
2819321	99	57	50,5	cyclictest	53	-21	kswapd0	00:20:33	1
2819321	99	57	40,10	cyclictest	0	-21	swapper/1	20:45:00	1
2819321	99	56	45,8	cyclictest	53	-21	kswapd0	00:00:08	1
2819321	99	56	24,17	cyclictest	2915771	-21	ssh	22:22:36	1
2819320	99	56	34,14	cyclictest	2948127	-21	modprobe	23:00:00	0
2819321	99	55	48,5	cyclictest	3029894	-21	kworker/u4:1+events_unbound	00:40:00	1
2819321	99	54	44,8	cyclictest	378	-21	dbus-daemon	21:10:27	1
2819320	99	54	43,8	cyclictest	2967559	-21	sshd	23:20:53	0
2819321	99	53	45,6	cyclictest	2866239	-21	kworker/u4:11+events_unbound	21:29:59	1
2819321	99	53	42,4	cyclictest	2866239	-21	kworker/u4:11+events_unbound	22:02:42	1
2819320	99	53	46,5	cyclictest	2977501	-21	kworker/u4:13+events_unbound	23:33:00	0
2819320	99	53	41,6	cyclictest	2889030	-21	kworker/u4:13+events_unbound	21:53:01	0
2819320	99	52	41,8	cyclictest	2957340	-21	aten_r7power_cu	23:10:15	0
2819320	99	52	27,22	cyclictest	0	-21	swapper/0	19:40:29	0
2819321	99	51	45,4	cyclictest	3011191	-21	timerandwakeup	00:10:36	1
2819321	99	51	43,6	cyclictest	2891055	-21	/usr/sbin/munin	21:55:16	1
2819321	99	51	43,6	cyclictest	2888354	-21	kworker/u4:4+events_unbound	21:51:59	1
2819321	99	51	40,7	cyclictest	2823124	-21	kworker/u4:0+events_unbound	19:40:09	1
2819320	99	51	43,5	cyclictest	2923211	-21	unixbench-2d	22:30:40	0
2819320	99	51	40,7	cyclictest	2939329	-21	kworker/u4:7	22:50:00	0
2819320	99	51	39,9	cyclictest	2819253	-21	kworker/u4:15+events_unbound	19:17:00	0
2819320	99	51	33,15	cyclictest	2873418	-21	grep	21:35:19	0
2819321	99	50	43,5	cyclictest	2926815	-21	gltestperf	22:35:20	1
2819321	99	50	43,5	cyclictest	2888355	-21	kworker/u4:7+events_unbound	22:05:54	1
2819321	99	50	43,5	cyclictest	2888355	-21	kworker/u4:7+events_unbound	22:05:54	1
2819321	99	50	42,6	cyclictest	2946191	-21	kworker/u4:0+events_unbound	23:24:42	1
2819321	99	50	41,6	cyclictest	2990302	-21	kworker/u4:3+events_unbound	23:50:16	1
2819320	99	50	43,5	cyclictest	2909920	-21	/usr/sbin/munin	22:15:36	0
2819321	99	49	42,5	cyclictest	2859515	-21	apt-get	21:20:12	1
2819320	99	49	29,18	cyclictest	0	-21	swapper/0	21:15:15	0
2819321	99	48	40,6	cyclictest	2827027	-21	kworker/u4:16+events_unbound	20:30:18	1
2819321	99	48	40,5	cyclictest	2838772	-21	grep	20:25:02	1
2819321	99	48	30,6	cyclictest	2821815	-21	kworker/u4:6+events_unbound	19:57:02	1
2819321	99	48	30,6	cyclictest	2821815	-21	kworker/u4:6+events_unbound	19:57:01	1
2819320	99	48	40,5	cyclictest	2870822	-21	kworker/u4:3+events_unbound	21:40:58	0
2819320	99	48	30,11	cyclictest	0	-21	swapper/0	23:00:34	0
2819320	99	48	26,18	cyclictest	0	-21	swapper/0	21:45:33	0
2819321	99	47	40,5	cyclictest	2845094	-21	kworker/u4:14+events_unbound	21:00:03	1
2819321	99	47	39,5	cyclictest	2939894	-21	/usr/sbin/munin	22:50:16	1
2819321	99	47	38,6	cyclictest	2850370	-21	wc	21:10:01	1
2819320	99	47	40,5	cyclictest	2841750	-21	fschecks_time	20:35:19	0
2819320	99	47	38,7	cyclictest	2819557	-21	aten_r7power_en	19:10:13	0
2819320	99	47	34,6	cyclictest	2823124	-21	kworker/u4:0+events_unbound	19:30:41	0
2819321	99	46	38,6	cyclictest	2833926	-21	df_abs	20:05:16	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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