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 Tue Feb 17, 2026 00:44:11)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2789962	99	109	89,8	cyclictest	2869266	-21	kworker/u4:0+events_unbound	22:07:39	0
2789962	99	108	100,6	cyclictest	2927376	-21	kworker/u4:9+events_unbound	23:17:52	0
2789962	99	105	98,5	cyclictest	2986001	-21	kworker/u4:5+events_unbound	00:28:01	0
2789962	99	104	96,6	cyclictest	2931621	-21	kworker/u4:17+events_unbound	23:27:52	0
2789962	99	95	87,6	cyclictest	2796230	-21	kworker/u4:3+events_unbound	21:17:31	0
2789962	99	95	86,7	cyclictest	2986000	-21	kworker/u4:0+events_unbound	00:33:03	0
2789962	99	91	82,6	cyclictest	2947902	-21	kworker/u4:8+events_unbound	00:02:58	0
2789962	99	91	82,6	cyclictest	2947902	-21	kworker/u4:8+events_unbound	00:02:58	0
2789962	99	87	80,5	cyclictest	2811558	-21	kworker/u4:17+events_unbound	20:42:28	0
2789964	99	86	77,7	cyclictest	2948518	-21	kworker/u4:10+events_unbound	23:42:54	1
2789962	99	81	71,8	cyclictest	2935819	-21	kworker/u4:4+events_unbound	23:32:54	0
2789964	99	79	45,31	cyclictest	2850378	-21	/usr/sbin/munin	21:45:19	1
2789964	99	79	40,5	cyclictest	2942468	-21	fschecks_time	23:35:20	1
2789962	99	79	70,6	cyclictest	2944266	-21	kworker/u4:6+events_unbound	23:52:56	0
2789964	99	76	2,32	cyclictest	2838339	-21	ntpq	21:30:28	1
2789964	99	74	36,10	cyclictest	2868113	-21	switchtime	22:05:37	1
2789964	99	72	38,6	cyclictest	2967777	-21	ld	00:05:26	1
2789962	99	72	64,6	cyclictest	2940033	-21	kworker/u4:7+events_unbound	23:47:55	0
2789964	99	71	37,4	cyclictest	2908960	-21	aten_r7power_po	22:55:16	1
2789962	99	71	63,6	cyclictest	2811558	-21	kworker/u4:17+events_unbound	21:27:33	0
2789962	99	71	2,54	cyclictest	2820430	-21	diskmemload	00:05:24	0
2789964	99	70	59,8	cyclictest	2780102	-21	kworker/u4:4+events_unbound	19:37:20	1
2789964	99	70	36,5	cyclictest	2992409	-21	fschecks_count	00:35:19	1
2789964	99	68	60,6	cyclictest	2864991	-21	kworker/u4:9+events_unbound	22:27:44	1
2789964	99	68	58,7	cyclictest	2906859	-21	kworker/u4:7+events_unbound	22:52:47	1
2789964	99	68	38,4	cyclictest	2964522	-21	sshd	00:01:09	1
2789964	99	68	38,4	cyclictest	2964522	-21	sshd	00:01:09	1
2789962	99	67	60,5	cyclictest	15	1	ktimers/0	00:11:53	0
2789964	99	66	57,7	cyclictest	2911072	-21	kworker/u4:0+events_unbound	23:02:49	1
2789964	99	65	54,8	cyclictest	2805250	-21	kworker/u4:14+events_unbound	20:07:23	1
2789964	99	65	54,7	cyclictest	2863202	-21	basename	22:00:19	1
2789964	99	65	54,7	cyclictest	2863202	-21	basename	22:00:19	1
2789962	99	65	50,5	cyclictest	2864995	-21	kworker/u4:13+events_unbound	22:12:00	0
2789964	99	64	55,6	cyclictest	2885703	-21	kworker/u4:8+events_unbound	22:37:44	1
2789962	99	64	51,6	cyclictest	2800112	-21	kworker/u4:2+events_unbound	20:57:28	0
2789964	99	63	54,7	cyclictest	2981758	-21	kworker/u4:12+events_unbound	00:30:00	1
2789962	99	63	42,6	cyclictest	2889936	-21	kworker/u4:12+events_unbound	22:50:21	0
2789962	99	62	54,6	cyclictest	2931621	-21	kworker/u4:17+events_unbound	23:39:42	0
2789962	99	62	54,6	cyclictest	2800113	-21	kworker/u4:4+events_unbound	21:07:29	0
2789962	99	62	41,9	cyclictest	2796230	-21	kworker/u4:3+events_unbound	20:47:27	0
2789962	99	61	54,6	cyclictest	2800112	-21	kworker/u4:2+events_unbound	20:37:27	0
2789962	99	60	55,4	cyclictest	2781389	-21	kworker/u4:16+events_unbound	19:17:00	0
2789962	99	59	51,6	cyclictest	2839954	-21	kworker/u4:1+events_unbound	22:03:43	0
2789962	99	59	51,6	cyclictest	2839954	-21	kworker/u4:1+events_unbound	22:03:43	0
2789962	99	59	51,6	cyclictest	2805250	-21	kworker/u4:14+events_unbound	21:45:00	0
2789962	99	59	45,5	cyclictest	2839955	-21	kworker/u4:2+events_unbound	21:39:00	0
2789962	99	59	31,21	cyclictest	2879730	-21	ssh	22:20:10	0
2789962	99	58	51,5	cyclictest	2801368	-21	kworker/u4:9+events_unbound	20:17:26	0
2789962	99	58	44,5	cyclictest	2915332	-21	kworker/u4:8+events_unbound	23:09:43	0
2789964	99	57	47,6	cyclictest	37	-21	kcompactd0	22:48:51	1
2789962	99	57	49,6	cyclictest	2959970	-21	unixbench_singl	23:55:38	0
2789962	99	57	49,6	cyclictest	2900849	-21	fschecks_count	22:45:19	0
2789962	99	57	49,6	cyclictest	2851502	-21	/usr/sbin/munin	21:45:43	0
2789964	99	56	48,5	cyclictest	2798768	-21	kworker/u4:8+events_unbound	20:30:01	1
2789962	99	56	49,5	cyclictest	2839955	-21	kworker/u4:2+events_unbound	21:56:59	0
2789964	99	55	47,6	cyclictest	2986001	-21	kworker/u4:5+events_unbound	00:31:43	1
2789962	99	55	49,4	cyclictest	2864995	-21	kworker/u4:13+events_unbound	22:31:06	0
2789962	99	55	44,5	cyclictest	2885703	-21	kworker/u4:8+events_unbound	22:42:00	0
2789962	99	55	34,12	cyclictest	2844248	-21	kworker/u4:10+events_unbound	21:50:03	0
2789964	99	54	46,6	cyclictest	2915332	-21	kworker/u4:8+events_unbound	23:07:50	1
2789962	99	54	47,5	cyclictest	2802624	-21	kworker/u4:6+events_unbound	19:57:22	0
2789962	99	54	47,5	cyclictest	2802624	-21	kworker/u4:6+events_unbound	19:57:22	0
2789964	99	53	44,7	cyclictest	314	-21	systemd-journal	23:32:53	1
2789962	99	53	46,5	cyclictest	2986001	-21	kworker/u4:5+events_unbound	00:39:00	0
2789962	99	53	45,6	cyclictest	2973319	-21	kworker/u4:7+events_unbound	00:21:43	0
2789962	99	53	42,5	cyclictest	2817854	-21	kworker/u4:8+events_unbound	21:12:59	0
2789962	99	53	1,37	cyclictest	2946792	-21	irqstats	23:40:21	0
2789964	99	52	6,34	cyclictest	2922266	-21	ssh	23:10:38	1
2789964	99	52	45,5	cyclictest	2926513	-21	switchtime	23:15:39	1
2789964	99	52	43,5	cyclictest	0	-21	swapper/1	21:55:29	1
2789964	99	52	42,8	cyclictest	2833484	-21	aten_r7power_cu	21:25:16	1
2789962	99	52	45,5	cyclictest	2811558	-21	kworker/u4:17+events_unbound	21:32:00	0
2789962	99	52	45,5	cyclictest	2805250	-21	kworker/u4:14+events_unbound	21:25:00	0
2789962	99	52	32,6	cyclictest	2793737	-21	cron	19:25:00	0
2789964	99	51	41,7	cyclictest	0	-21	swapper/1	20:55:23	1
2789962	99	51	44,5	cyclictest	2800110	-21	kworker/u4:0+events_unbound	20:10:03	0
2789964	99	50	41,7	cyclictest	2815350	-21	systemd	20:47:27	1
2789964	99	50	41,6	cyclictest	2803993	-21	kworker/u4:12+events_unbound	21:02:29	1
2789962	99	50	42,6	cyclictest	2796230	-21	kworker/u4:3+events_unbound	20:32:27	0
2789962	99	50	32,16	cyclictest	0	-21	swapper/0	22:25:39	0
2789964	99	49	41,6	cyclictest	2898896	-21	sd-accept	22:42:44	1
2789962	99	49	42,6	cyclictest	2798768	-21	kworker/u4:8+events_unbound	20:22:27	0
2789962	99	49	41,6	cyclictest	2915332	-21	kworker/u4:8+events_unbound	23:21:00	0
2789962	99	49	41,6	cyclictest	2915332	-21	kworker/u4:8+events_unbound	23:11:12	0
2789962	99	49	40,7	cyclictest	2893393	-21	unixbench_singl	22:35:37	0
2789964	99	48	39,7	cyclictest	2800116	-21	systemd	19:47:21	1
2789964	99	48	34,11	cyclictest	0	-21	swapper/1	23:45:29	1
2789962	99	48	41,5	cyclictest	2973319	-21	kworker/u4:7+events_unbound	00:15:19	0
2789962	99	48	41,5	cyclictest	2803993	-21	kworker/u4:12+events_unbound	21:02:00	0
2789962	99	48	36,6	cyclictest	2915332	-21	kworker/u4:8+events_unbound	23:04:44	0
2789964	99	47	40,5	cyclictest	2821215	-21	gltestperf	21:10:25	1
2789964	99	47	40,5	cyclictest	2812143	-21	gltestperf	20:35:17	1
2789964	99	47	39,5	cyclictest	0	-21	swapper/1	22:10:15	1
2789962	99	47	41,4	cyclictest	0	-21	swapper/0	19:47:21	0
2789962	99	47	40,5	cyclictest	2795604	-21	gltestperf	19:30:19	0
2789962	99	47	39,6	cyclictest	2804251	-21	aten_r7power_cu	20:05:16	0
2789962	99	47	39,5	cyclictest	2804037	-21	kworker/u4:4	20:05:00	0
2789964	99	46	39,5	cyclictest	2947902	-21	kworker/u4:8+events_unbound	23:59:00	1
2789964	99	46	38,6	cyclictest	2876408	-21	processes	22:15:35	1
2789964	99	46	38,6	cyclictest	2791570	-21	df_abs	19:15:17	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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