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 792 highest latencies:

System rack7slot2.osadl.org (updated Thu Feb 05, 2026 00:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2939095	99	98	90,6	cyclictest	2945456	-21	kworker/u4:12+events_unbound	19:45:23	0
2939095	99	97	78,7	cyclictest	2980863	-21	kworker/u4:8+events_unbound	21:25:44	0
2939095	99	90	70,6	cyclictest	2951841	-21	kworker/u4:5+events_unbound	21:00:40	0
2939095	99	89	80,6	cyclictest	3033866	-21	kworker/u4:21+events_unbound	22:25:57	0
2939095	99	89	79,7	cyclictest	3120806	-21	kworker/u4:5+events_unbound	00:08:22	0
2939095	99	88	80,6	cyclictest	2965827	-21	kworker/u4:6+events_unbound	20:55:39	0
2939096	99	83	75,6	cyclictest	2960777	-21	kworker/u4:8+events_unbound	20:35:36	1
2939095	99	83	75,6	cyclictest	2946710	-21	kworker/u4:14+events_unbound	20:45:38	0
2939095	99	83	74,7	cyclictest	3038313	-21	kworker/u4:23+events_unbound	22:30:58	0
2939095	99	83	64,17	cyclictest	3024913	-21	kworker/u4:1+events_unbound	22:15:55	0
2939096	99	78	66,9	cyclictest	2930634	-21	kworker/u4:13+events_unbound	20:00:29	1
2939095	99	78	70,6	cyclictest	3042739	-21	kworker/u4:2+events_unbound	22:46:01	0
2939095	99	78	67,7	cyclictest	0	-21	swapper/0	22:00:27	0
2939095	99	77	69,6	cyclictest	3112598	-21	kworker/u4:2+events_unbound	23:53:18	0
2939095	99	77	66,8	cyclictest	2980859	-21	kworker/u4:2+events_unbound	21:30:45	0
2939096	99	75	70,3	cyclictest	3033859	-21	kworker/u4:15+events_unbound	22:40:59	1
2939096	99	73	66,5	cyclictest	2946710	-21	kworker/u4:14+events_unbound	20:40:36	1
2939095	99	73	65,6	cyclictest	2994285	-21	kworker/u4:12+events_unbound	21:45:48	0
2939095	99	72	63,7	cyclictest	3120807	-21	kworker/u4:6+events_unbound	00:13:35	0
2939095	99	72	60,5	cyclictest	3103740	-21	kworker/u4:3+events_unbound	00:18:37	0
2939096	99	69	60,7	cyclictest	3064273	-21	kworker/u4:2+events_unbound	23:05:00	1
2939095	99	69	62,5	cyclictest	3121449	-21	kworker/u4:9+events_unbound	00:33:41	0
2939095	99	69	60,7	cyclictest	3142967	-21	kworker/u4:12+events_unbound	00:28:40	0
2939095	99	67	59,6	cyclictest	3086599	-21	kworker/u4:5+events_unbound	23:26:03	0
2939095	99	65	58,5	cyclictest	2945456	-21	kworker/u4:12+events_unbound	20:30:34	0
2939095	99	64	56,6	cyclictest	2951841	-21	kworker/u4:5+events_unbound	20:05:30	0
2939096	99	62	53,5	cyclictest	3141560	-21	ssh	00:25:25	1
2939095	99	62	55,5	cyclictest	2951839	-21	kworker/u4:3+events_unbound	20:20:01	0
2939095	99	62	43,8	cyclictest	2965845	-21	modprobe	20:54:59	0
2939095	99	59	48,7	cyclictest	3101975	-21	fschecks_count	23:40:19	0
2939095	99	58	51,5	cyclictest	2993635	-21	kworker/u4:10+events_unbound	21:55:01	0
2939095	99	58	49,7	cyclictest	2942942	-21	kworker/u4:5+events_unbound	19:50:27	0
2939095	99	57	40,13	cyclictest	0	-21	swapper/0	22:20:10	0
2939095	99	57	40,13	cyclictest	0	-21	swapper/0	22:20:09	0
2939096	99	56	48,5	cyclictest	3028430	-21	/usr/sbin/munin	22:15:38	1
2939096	99	56	47,7	cyclictest	388	-21	dbus-daemon	20:05:29	1
2939096	99	56	17,28	cyclictest	0	-21	swapper/1	23:25:30	1
2939096	99	56	17,15	cyclictest	3020783	-21	ssh	22:07:27	1
2939095	99	56	46,7	cyclictest	2951839	-21	kworker/u4:3+events_unbound	20:15:01	0
2939096	99	55	18,15	cyclictest	3053721	-21	ssh	22:45:19	1
2939095	99	55	51,3	cyclictest	3073201	-21	kworker/u4:4+events_unbound	23:35:03	0
2939095	99	55	47,6	cyclictest	2979952	-21	timerwakeupswit	21:20:38	0
2939096	99	54	47,5	cyclictest	3076346	-21	switchtime	23:10:37	1
2939096	99	54	45,7	cyclictest	3001569	-21	ntpq	21:45:34	1
2939096	99	54	16,16	cyclictest	3110289	-21	ssh	23:50:08	1
2939096	99	54	11,16	cyclictest	3046300	-21	ssh	22:36:09	1
2939095	99	54	12,15	cyclictest	3067200	-21	ntpq	23:00:25	0
2939096	99	53	46,5	cyclictest	2983463	-21	/usr/sbin/munin	21:25:18	1
2939096	99	53	39,7	cyclictest	0	-21	swapper/1	00:30:53	1
2939096	99	53	17,12	cyclictest	2969844	-21	ssh	21:10:03	1
2939095	99	53	48,4	cyclictest	2939091	-21	cyclictest	20:35:33	0
2939095	99	53	46,5	cyclictest	2964574	-21	kworker/u4:3+events_unbound	21:10:41	0
2939096	99	52	16,11	cyclictest	3062764	-21	ssh	22:55:25	1
2939096	99	52	12,15	cyclictest	2976528	-21	ssh	21:17:00	1
2939095	99	52	42,7	cyclictest	388	-21	dbus-daemon	19:25:19	0
2939095	99	52	3,46	cyclictest	3150354	-21	ssh	00:35:27	0
2939096	99	51	44,5	cyclictest	3070895	-21	acpi	23:05:11	1
2939096	99	51	41,6	cyclictest	3033865	-21	kworker/u4:20-rpciod	23:15:27	1
2939096	99	51	13,11	cyclictest	3117858	-21	ssh	23:58:35	1
2939096	99	51	12,14	cyclictest	2980886	-21	ssh	21:21:52	1
2939095	99	51	42,6	cyclictest	0	-21	swapper/0	20:25:34	0
2939095	99	51	42,5	cyclictest	0	-21	swapper/0	22:35:26	0
2939096	99	50	44,5	cyclictest	3032477	-21	ntpq	22:20:39	1
2939096	99	50	44,5	cyclictest	3032477	-21	ntpq	22:20:39	1
2939096	99	50	41,6	cyclictest	3084645	-21	if_eth0	23:20:20	1
2939096	99	50	36,10	cyclictest	2949351	-21	modprobe	19:50:00	1
2939096	99	50	13,10	cyclictest	3037891	-21	ssh	22:26:38	1
2939096	99	50	12,13	cyclictest	3121163	-21	ssh	00:01:54	1
2939096	99	50	12,12	cyclictest	3151666	-21	ssh	00:36:48	1
2939096	99	50	12,11	cyclictest	3101523	-21	ssh	23:40:05	1
2939096	99	50	11,14	cyclictest	3025538	-21	ssh	22:13:00	1
2939096	99	50	10,16	cyclictest	2989954	-21	ssh	21:32:18	1
2939095	99	50	44,3	cyclictest	0	-21	swapper/0	21:35:30	0
2939095	99	50	43,5	cyclictest	3103740	-21	kworker/u4:3+events_unbound	23:46:56	0
2939095	99	50	43,5	cyclictest	2996929	-21	/usr/sbin/munin	21:40:21	0
2939095	99	50	41,6	cyclictest	2945051	-21	sshd	19:30:32	0
2939096	99	49	29,15	cyclictest	2996383	-21	apt-get	21:40:11	1
2939096	99	49	26,19	cyclictest	2964111	-21	ntpq	20:45:30	1
2939096	99	49	12,10	cyclictest	3007434	-21	ssh	21:52:12	1
2939096	99	49	11,11	cyclictest	2994152	-21	ssh	21:37:00	1
2939096	99	49	10,14	cyclictest	3010973	-21	ssh	21:55:52	1
2939095	99	49	43,4	cyclictest	2960776	-21	kworker/u4:2+events_unbound	21:05:40	0
2939095	99	49	41,7	cyclictest	3033865	-21	kworker/u4:20+events_unbound	23:22:13	0
2939095	99	49	41,6	cyclictest	2972527	-21	kworker/u4:10+events_unbound	21:19:00	0
2939095	99	49	39,8	cyclictest	2946903	-21	apt-key	19:40:02	0
2939095	99	49	36,11	cyclictest	3119398	-21	fschecks_count	00:00:20	0
2939095	99	49	29,17	cyclictest	0	-21	swapper/0	23:33:33	0
2939096	99	48	11,13	cyclictest	3101216	-21	ssh	23:39:53	1
2939096	99	48	10,14	cyclictest	3061784	-21	ssh	22:54:56	1
2939095	99	48	42,4	cyclictest	3018298	-21	find	22:05:12	0
2939095	99	48	41,5	cyclictest	3072098	-21	sed	23:05:37	0
2939095	99	48	40,6	cyclictest	3137132	-21	kernelversion	00:20:22	0
2939095	99	48	26,15	cyclictest	3057842	-21	sh	22:50:18	0
2939096	99	47	40,5	cyclictest	2969284	-21	sendmail_mailqu	21:05:36	1
2939096	99	47	37,7	cyclictest	0	-21	swapper/1	00:20:34	1
2939096	99	47	36,8	cyclictest	2951839	-21	kworker/u4:3+events_unbound	20:25:33	1
2939096	99	47	12,11	cyclictest	3125517	-21	ssh	00:06:53	1
2939096	99	47	12,11	cyclictest	3107585	-21	ssh	23:46:05	1
2939095	99	47	41,4	cyclictest	2939104	-21	latency_hist	19:10:02	0
2939095	99	47	39,6	cyclictest	3117017	-21	kworker/u4:1+events_unbound	23:58:17	0
2939095	99	47	35,8	cyclictest	3020430	-21	kworker/u4:2-nfsiod	22:10:35	0
2939096	99	46	38,6	cyclictest	3041488	-21	unixbench-2d	22:30:38	1
2939096	99	46	37,6	cyclictest	0	-21	swapper/1	23:31:03	1
2939096	99	46	37,6	cyclictest	0	-21	swapper/1	19:25:20	1
2939096	99	46	36,8	cyclictest	2965709	-21	unixbench-2d	20:50:38	1
2939096	99	45	38,5	cyclictest	2948131	-21	grep	19:45:01	1
2939096	99	45	34,6	cyclictest	0	-21	swapper/1	00:15:22	1
2939096	99	45	16,19	cyclictest	3128743	-21	ps	00:10:35	1
2939096	99	45	15,9	cyclictest	0	-21	swapper/1	19:10:01	1
2939095	99	45	37,6	cyclictest	2940394	-21	kworker/u4:4+events_unbound	19:20:30	0
2939095	99	45	36,5	cyclictest	3079942	-21	ssh	23:15:17	0
2939095	99	45	36,5	cyclictest	0	-21	swapper/0	21:59:05	0
2939096	99	44	38,4	cyclictest	2967496	-21	df_abs	21:00:20	1
2939096	99	44	37,5	cyclictest	2928099	-21	kworker/u4:11+rpciod	19:50:19	1
2939096	99	44	36,6	cyclictest	2967174	-21	latency_hist	21:00:00	1
2939096	99	44	36,6	cyclictest	2926844	-21	kworker/u4:0+events_unbound	19:15:18	1
2939096	99	44	35,7	cyclictest	2942201	-21	fschecks_time	19:20:19	1
2939096	99	44	35,6	cyclictest	2955306	-21	sendmail_mailqu	20:10:36	1
2939096	99	44	33,9	cyclictest	0	-21	swapper/1	19:30:34	1
2939095	99	44	37,5	cyclictest	3062602	-21	gltestperf	22:55:24	0
2939096	99	43	34,6	cyclictest	0	-21	swapper/1	20:15:30	1
2939096	99	43	31,8	cyclictest	2939066	-21	apt-get	19:10:12	1
2939096	99	43	28,11	cyclictest	3014776	-21	ntpq	22:00:33	1
2939095	99	43	36,5	cyclictest	2940651	-21	aten_r7power_en	19:15:16	0
2939095	99	42	35,5	cyclictest	2951183	-21	gltestperf	19:55:21	0
2939095	99	42	34,6	cyclictest	2939438	-21	aten_r7power_po	19:10:23	0
2939095	99	41	3,7	cyclictest	0	-21	swapper/0	19:40:11	0
2939095	99	41	33,6	cyclictest	2952164	-21	aten_r7power_po	20:00:15	0
2939095	99	41	32,6	cyclictest	0	-21	swapper/0	23:10:29	0
2939095	99	41	31,8	cyclictest	3049518	-21	head	22:40:20	0
2939096	99	40	33,5	cyclictest	2959852	-21	cpu	20:30:17	1
2939096	99	40	28,9	cyclictest	0	-21	swapper/1	19:35:19	1
2939095	99	40	31,6	cyclictest	0	-21	swapper/0	20:45:02	0
2939096	99	39	31,5	cyclictest	0	-21	swapper/1	19:55:27	1
2939096	99	39	29,8	cyclictest	0	-21	swapper/1	20:20:17	1
2939095	99	38	31,5	cyclictest	2946710	-21	kworker/u4:14+events_unbound	20:20:32	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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