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 Sun Mar 22, 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
2802167	99	114	95,7	cyclictest	2941759	-21	kworker/u4:10+events_unbound	23:33:29	0
2802167	99	107	88,8	cyclictest	2858091	-21	kworker/u4:8+events_unbound	21:38:04	0
2802167	99	107	100,5	cyclictest	2897814	-21	kworker/u4:7+events_unbound	23:03:22	0
2802167	99	101	76,16	cyclictest	2972388	-21	kworker/u4:5+events_unbound	00:15:02	0
2802167	99	99	92,5	cyclictest	2858091	-21	kworker/u4:8+events_unbound	22:08:13	0
2802169	99	95	78,6	cyclictest	2910486	-21	kworker/u4:14+events_unbound	22:40:12	1
2802169	99	92	84,6	cyclictest	2820088	-21	kworker/u4:10+events_unbound	21:18:00	1
2802167	99	92	84,6	cyclictest	2875453	-21	kworker/u4:0+events_unbound	21:58:10	0
2802167	99	92	84,5	cyclictest	2844560	-21	kworker/u4:1+events_unbound	21:28:02	0
2802167	99	91	84,5	cyclictest	2879948	-21	kworker/u4:4+events_unbound	22:38:18	0
2802167	99	91	84,5	cyclictest	2879948	-21	kworker/u4:4+events_unbound	22:38:18	0
2802167	99	87	80,5	cyclictest	2888219	-21	kworker/u4:9+events_unbound	22:13:11	0
2802167	99	87	79,6	cyclictest	2967918	-21	kworker/u4:1+events_unbound	23:43:29	0
2802167	99	86	79,5	cyclictest	3011955	-21	kworker/u4:5+events_unbound	00:33:37	0
2802167	99	86	78,6	cyclictest	2959001	-21	kworker/u4:5+events_unbound	23:38:27	0
2802167	99	86	68,8	cyclictest	2897156	-21	kworker/u4:3+events_unbound	22:45:00	0
2802169	99	83	72,5	cyclictest	2967918	-21	kworker/u4:1+events_unbound	23:58:29	1
2802167	99	83	76,5	cyclictest	2897814	-21	kworker/u4:7+events_unbound	23:23:26	0
2802167	99	82	75,5	cyclictest	3003013	-21	kworker/u4:1+events_unbound	00:23:32	0
2802167	99	81	74,5	cyclictest	2858089	-21	kworker/u4:2+events_unbound	21:43:03	0
2802169	99	80	65,9	cyclictest	2879953	-21	kworker/u4:11+events_unbound	22:30:16	1
2802169	99	79	62,5	cyclictest	2985133	-21	kworker/u4:4+events_unbound	00:18:34	1
2802169	99	77	70,5	cyclictest	2985134	-21	kworker/u4:10+events_unbound	00:05:12	1
2802169	99	77	61,7	cyclictest	2932893	-21	kworker/u4:9+events_unbound	23:28:28	1
2802169	99	77	61,7	cyclictest	2932893	-21	kworker/u4:9+events_unbound	23:28:28	1
2802169	99	77	56,7	cyclictest	2976809	-21	kworker/u4:11+events_unbound	00:05:00	1
2802167	99	77	69,6	cyclictest	2941759	-21	kworker/u4:10+events_unbound	23:13:24	0
2802169	99	76	67,7	cyclictest	2858091	-21	kworker/u4:8+events_unbound	22:05:35	1
2802167	99	75	67,6	cyclictest	2897814	-21	kworker/u4:7+events_unbound	22:58:21	0
2802169	99	73	66,5	cyclictest	2832956	-21	kworker/u4:7+events_unbound	21:15:01	1
2802167	99	73	65,6	cyclictest	2884391	-21	kworker/u4:5+events_unbound	22:18:13	0
2802167	99	71	63,6	cyclictest	2989595	-21	kworker/u4:15+events_unbound	00:08:31	0
2802169	99	70	63,5	cyclictest	2897814	-21	kworker/u4:7+events_unbound	23:08:23	1
2802167	99	70	62,6	cyclictest	2804658	-21	kworker/u4:13+events_unbound	20:07:46	0
2802167	99	70	60,7	cyclictest	2816267	-21	kworker/u4:17+events_unbound	20:05:01	0
2802169	99	69	62,5	cyclictest	2803390	-21	kworker/u4:11+events_unbound	19:17:00	1
2802167	99	69	61,6	cyclictest	2941759	-21	kworker/u4:10+events_unbound	23:18:25	0
2802167	99	69	50,14	cyclictest	53	-21	kswapd0	21:45:12	0
2802169	99	68	61,5	cyclictest	2972387	-21	kworker/u4:2+events_unbound	23:53:29	1
2802169	99	67	59,6	cyclictest	2963472	-21	kworker/u4:7+events_unbound	23:40:01	1
2802169	99	66	58,6	cyclictest	2803388	-21	kworker/u4:9+events_unbound	19:30:00	1
2802169	99	65	59,4	cyclictest	2884390	-21	kworker/u4:2+events_unbound	22:20:35	1
2802169	99	65	54,5	cyclictest	2798360	-21	kworker/u4:5+events_unbound	20:45:00	1
2802167	99	64	57,5	cyclictest	2798361	-21	kworker/u4:6+events_unbound	19:52:39	0
2802169	99	63	55,7	cyclictest	2803387	-21	kworker/u4:7+events_unbound	19:55:01	1
2802169	99	63	47,6	cyclictest	2849119	-21	kworker/u4:7+events_unbound	21:53:09	1
2802167	99	62	54,6	cyclictest	2897813	-21	kworker/u4:6+events_unbound	22:25:19	0
2802167	99	62	54,6	cyclictest	2817532	-21	kworker/u4:18+events_unbound	20:22:47	0
2802169	99	61	54,5	cyclictest	2820087	-21	kworker/u4:6+events_unbound	20:25:01	1
2802167	99	60	52,6	cyclictest	2820088	-21	kworker/u4:10+events_unbound	20:57:56	0
2802169	99	59	49,7	cyclictest	2941759	-21	kworker/u4:10+events_unbound	23:15:13	1
2802169	99	59	46,5	cyclictest	2814965	-21	kworker/u4:14+events_unbound	20:10:01	1
2802169	99	58	50,5	cyclictest	2822655	-21	kworker/u4:15+events_unbound	20:52:53	1
2802169	99	57	50,5	cyclictest	2798361	-21	kworker/u4:6+events_unbound	19:10:00	1
2802167	99	57	52,4	cyclictest	2831597	-21	kworker/u4:2+events_unbound	21:05:02	0
2802167	99	57	39,15	cyclictest	2820107	-21	cron	20:20:00	0
2802169	99	56	44,5	cyclictest	2923958	-21	kworker/u4:17+events_unbound	22:55:58	1
2802169	99	56	43,11	cyclictest	2802166	-21	cyclictest	23:00:15	1
2802167	99	56	48,6	cyclictest	3016382	-21	kworker/u4:6+events_unbound	00:38:35	0
2802169	99	55	42,6	cyclictest	2919496	-21	kworker/u4:15+events_unbound	22:46:59	1
2802169	99	55	42,10	cyclictest	0	-21	swapper/1	23:10:12	1
2802169	99	55	38,6	cyclictest	3011955	-21	kworker/u4:5+events_unbound	00:35:00	1
2802167	99	55	49,4	cyclictest	3005604	-21	fschecks_time	00:25:20	0
2802167	99	55	48,5	cyclictest	2897814	-21	kworker/u4:7+events_unbound	22:30:13	0
2802167	99	55	47,6	cyclictest	2802093	-21	kworker/u4:1+events_unbound	19:47:39	0
2802167	99	55	47,5	cyclictest	2849119	-21	kworker/u4:7+events_unbound	21:52:59	0
2802167	99	55	46,7	cyclictest	2897813	-21	kworker/u4:6+events_unbound	22:23:19	0
2802169	99	54	47,5	cyclictest	2897814	-21	kworker/u4:7+events_unbound	22:28:16	1
2802169	99	54	47,5	cyclictest	2858091	-21	kworker/u4:8+events_unbound	21:55:13	1
2802167	99	54	45,7	cyclictest	2976156	-21	kworker/u4:10+events_unbound	23:51:59	0
2802167	99	53	45,6	cyclictest	2858091	-21	kworker/u4:8+events_unbound	22:02:59	0
2802167	99	53	30,21	cyclictest	2809058	-21	fschecks_count	19:35:24	0
2802169	99	52	45,5	cyclictest	2831599	-21	kworker/u4:4+events_unbound	21:02:56	1
2802169	99	52	45,5	cyclictest	2826490	-21	kworker/u4:3+events_unbound	20:47:52	1
2802167	99	52	43,7	cyclictest	2981906	-21	systemd	23:58:29	0
2802169	99	51	43,6	cyclictest	2950721	-21	kworker/u4:1+events_unbound	23:24:41	1
2802169	99	51	43,5	cyclictest	2822323	-21	sendmail_mailqu	20:25:35	1
2802167	99	51	42,7	cyclictest	315	-21	systemd-journal	21:33:01	0
2802167	99	51	40,7	cyclictest	2917689	-21	fschecks_count	22:45:17	0
2802167	99	51	31,8	cyclictest	2811154	-21	kworker/u4:17+events_unbound	19:45:00	0
2802169	99	50	43,5	cyclictest	2897156	-21	kworker/u4:3+events_unbound	22:50:03	1
2802169	99	50	38,8	cyclictest	2969735	-21	ssh	23:45:00	1
2802167	99	50	43,5	cyclictest	2807723	-21	fschecks_count	19:30:18	0
2802167	99	50	43,5	cyclictest	2807723	-21	fschecks_count	19:30:18	0
2802169	99	49	40,7	cyclictest	2868873	-21	latency_hist	21:50:02	1
2802169	99	49	31,9	cyclictest	2803387	-21	kworker/u4:7+events_unbound	19:55:28	1
2802167	99	49	42,5	cyclictest	2972387	-21	kworker/u4:2+events_unbound	00:10:41	0
2802167	99	49	41,6	cyclictest	2952585	-21	aten_r7power_en	23:25:15	0
2802167	99	49	41,6	cyclictest	2952585	-21	aten_r7power_en	23:25:15	0
2802167	99	49	39,8	cyclictest	2842618	-21	sort	21:20:20	0
2802169	99	48	39,7	cyclictest	2852459	-21	unixbench-2d	21:30:39	1
2802169	99	48	38,8	cyclictest	2887590	-21	sendmail_mailqu	22:10:37	1
2802169	99	48	30,6	cyclictest	3011955	-21	kworker/u4:5+events_unbound	00:38:00	1
2802167	99	48	39,6	cyclictest	2813693	-21	kworker/u4:9+events_unbound	20:32:50	0
2802167	99	48	35,7	cyclictest	0	-21	swapper/0	19:24:59	0
2802167	99	48	27,8	cyclictest	2897156	-21	kworker/u4:3+events_unbound	22:51:09	0
2802169	99	47	40,5	cyclictest	2957159	-21	df_inode	23:30:18	1
2802169	99	47	36,8	cyclictest	2816223	-21	unixbench_singl	20:00:39	1
2802169	99	47	36,8	cyclictest	2811291	-21	latency_hist	19:45:02	1
2802167	99	47	40,5	cyclictest	2831912	-21	aten2__	21:05:19	0
2802167	99	47	38,6	cyclictest	2798360	-21	kworker/u4:5+events_unbound	20:42:54	0
2802169	99	46	40,4	cyclictest	2803387	-21	kworker/u4:7+events_unbound	20:35:02	1
2802169	99	46	38,6	cyclictest	2970915	-21	ntpq	23:45:35	1
2802169	99	46	38,6	cyclictest	2859975	-21	latency_hist	21:40:02	1
2802169	99	46	38,6	cyclictest	2818807	-21	systemd	20:12:45	1
2802169	99	46	38,5	cyclictest	2803054	-21	sendmail_mailqu	19:10:35	1
2802169	99	46	37,6	cyclictest	3000815	-21	ssh	00:20:13	1
2802169	99	46	36,8	cyclictest	0	-21	swapper/1	22:15:18	1
2802169	99	46	34,9	cyclictest	2860361	-21	cpu	21:40:16	1
2802167	99	46	39,5	cyclictest	2838882	-21	timerandwakeup	21:15:37	0
2802167	99	46	39,5	cyclictest	2802166	-21	cyclictest	00:00:21	0
2802167	99	46	38,6	cyclictest	2803389	-21	kworker/u4:10+events_unbound	19:17:35	0
2802167	99	46	34,9	cyclictest	53	-21	kswapd0	23:10:00	0
2802169	99	45	38,5	cyclictest	3005573	-21	fschecks_time	00:25:19	1
2802169	99	45	38,5	cyclictest	2908830	-21	fschecks_count	22:35:21	1
2802169	99	45	38,5	cyclictest	2908830	-21	fschecks_count	22:35:21	1
2802169	99	45	36,7	cyclictest	2808900	-21	aten_r7power_po	19:35:21	1
2802169	99	45	35,8	cyclictest	2991985	-21	sh	00:10:12	1
2802169	99	45	32,11	cyclictest	2842691	-21	fschecks_time	21:20:20	1
2802167	99	45	37,5	cyclictest	2831596	-21	kworker/u4:1-rpciod	21:10:20	0
2802169	99	44	38,4	cyclictest	2878256	-21	tune2fs	22:00:20	1
2802169	99	44	35,7	cyclictest	2825066	-21	unixbench-2d	20:35:38	1
2802167	99	44	6,29	cyclictest	2802166	-21	cyclictest	19:09:59	0
2802167	99	44	37,5	cyclictest	2807273	-21	apt	19:30:01	0
2802167	99	44	33,9	cyclictest	2971218	-21	timerwakeupswit	23:45:39	0
2802169	99	43	35,6	cyclictest	2832689	-21	switchtime	21:05:41	1
2802169	99	43	35,6	cyclictest	2811465	-21	aten_r7power_po	19:45:16	1
2802167	99	43	33,7	cyclictest	2818825	-21	modprobe	20:15:01	0
2802167	99	43	25,15	cyclictest	0	-21	swapper/0	20:30:01	0
2802169	99	42	34,6	cyclictest	2808338	-21	timerwakeupswit	19:30:36	1
2802169	99	42	34,6	cyclictest	2808338	-21	timerwakeupswit	19:30:36	1
2802169	99	42	34,5	cyclictest	0	-21	swapper/1	19:20:34	1
2802169	99	42	33,5	cyclictest	0	-21	swapper/1	21:25:36	1
2802167	99	42	35,5	cyclictest	2824469	-21	fschecks_time	20:35:19	0
2802167	99	42	20,19	cyclictest	0	-21	swapper/0	19:55:15	0
2802169	99	41	34,5	cyclictest	2819196	-21	sed	20:15:17	1
2802167	99	41	34,5	cyclictest	2828361	-21	gltestperf	20:50:18	0
2802169	99	40	33,5	cyclictest	2826491	-21	kworker/u4:17-rpciod	20:55:16	1
2802167	99	40	33,5	cyclictest	2802604	-21	fschecks_count	19:10:19	0
2802167	99	40	31,7	cyclictest	2826931	-21	fschecks_count	20:45:17	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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