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 Sat Jul 25, 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
2713178	99	110	100,7	cyclictest	2722092	-21	kworker/u4:4+events_unbound	19:46:46	1
2713175	99	98	79,6	cyclictest	2857997	-21	kworker/u4:9+events_unbound	23:17:21	0
2713175	99	96	89,5	cyclictest	2736299	-21	kworker/u4:11+events_unbound	20:41:54	0
2713175	99	96	88,6	cyclictest	2884393	-21	kworker/u4:10+events_unbound	00:03:03	0
2713175	99	95	87,6	cyclictest	2906892	-21	kworker/u4:5+events_unbound	00:13:31	0
2713178	99	94	87,5	cyclictest	2839973	-21	kworker/u4:8+events_unbound	22:57:17	1
2713178	99	94	87,5	cyclictest	2839973	-21	kworker/u4:8+events_unbound	22:57:16	1
2713178	99	91	85,4	cyclictest	2768911	-21	kworker/u4:4+events_unbound	21:47:03	1
2713178	99	91	83,6	cyclictest	2862529	-21	kworker/u4:14+events_unbound	23:37:24	1
2713178	99	91	83,6	cyclictest	2862529	-21	kworker/u4:14+events_unbound	23:37:24	1
2713175	99	91	84,5	cyclictest	2800082	-21	kworker/u4:4+events_unbound	22:12:06	0
2713175	99	91	83,6	cyclictest	2866368	-21	kworker/u4:15+events_unbound	23:27:22	0
2713175	99	90	82,6	cyclictest	2818070	-21	kworker/u4:5+events_unbound	23:07:19	0
2713175	99	89	80,7	cyclictest	2884393	-21	kworker/u4:10+events_unbound	00:33:54	0
2713175	99	89	72,7	cyclictest	2809072	-21	kworker/u4:0+events_unbound	22:27:10	0
2713175	99	88	80,6	cyclictest	2906891	-21	kworker/u4:4+events_unbound	00:23:48	0
2713175	99	87	81,4	cyclictest	2722091	-21	kworker/u4:2+events_unbound	20:01:50	0
2713178	99	86	78,6	cyclictest	2804557	-21	kworker/u4:6+events_unbound	22:17:08	1
2713175	99	85	77,6	cyclictest	2740133	-21	kworker/u4:12+events_unbound	21:11:58	0
2713175	99	85	77,6	cyclictest	2740133	-21	kworker/u4:12+events_unbound	21:11:58	0
2713178	99	84	76,6	cyclictest	2928757	-21	kworker/u4:2+events_unbound	00:38:54	1
2713175	99	84	76,6	cyclictest	2729906	-21	kworker/u4:10+events_unbound	20:21:50	0
2713175	99	83	75,6	cyclictest	2884393	-21	kworker/u4:10+events_unbound	00:18:45	0
2713175	99	83	75,6	cyclictest	2742697	-21	kworker/u4:13+events_unbound	21:37:01	0
2713175	99	83	70,5	cyclictest	2861862	-21	kworker/u4:12+events_unbound	23:22:21	0
2713178	99	82	74,5	cyclictest	2879879	-21	kworker/u4:3+events_unbound	23:46:55	1
2713175	99	77	68,7	cyclictest	2733753	-21	kworker/u4:2+events_unbound	21:32:02	0
2713175	99	76	68,6	cyclictest	2722091	-21	kworker/u4:2+events_unbound	19:56:49	0
2713175	99	75	67,6	cyclictest	2768913	-21	kworker/u4:6+events_unbound	21:42:02	0
2713175	99	73	66,5	cyclictest	2711822	-21	kworker/u4:5+events_unbound	19:21:42	0
2713178	99	72	65,5	cyclictest	2804557	-21	kworker/u4:6+events_unbound	22:37:13	1
2713178	99	71	55,9	cyclictest	2787221	-21	kworker/u4:12+events_unbound	22:05:45	1
2713175	99	71	63,6	cyclictest	2714409	-21	kworker/u4:9+events_unbound	19:51:48	0
2713175	99	71	55,7	cyclictest	2818069	-21	kworker/u4:4+events_unbound	22:40:01	0
2713178	99	70	63,5	cyclictest	2733753	-21	kworker/u4:2+events_unbound	20:36:52	1
2713175	99	70	63,5	cyclictest	2733753	-21	kworker/u4:2+events_unbound	20:56:57	0
2713175	99	69	61,6	cyclictest	2716987	-21	kworker/u4:15+events_unbound	19:41:46	0
2713175	99	66	58,6	cyclictest	2711822	-21	kworker/u4:5+events_unbound	20:16:52	0
2713175	99	65	51,10	cyclictest	53	-21	kswapd0	23:00:12	0
2713175	99	65	44,18	cyclictest	2816842	-21	mailstats	22:30:44	0
2713175	99	64	56,6	cyclictest	2733754	-21	kworker/u4:3+events_unbound	20:31:52	0
2713175	99	63	47,6	cyclictest	2809734	-21	kworker/u4:9+events_unbound	22:45:46	0
2713178	99	62	55,5	cyclictest	2842393	-21	ssh	23:00:14	1
2713175	99	62	50,6	cyclictest	2906894	-21	kworker/u4:11+events_unbound	00:30:01	0
2713175	99	62	42,7	cyclictest	2750727	-21	kworker/u4:16+events_unbound	21:17:45	0
2713178	99	61	53,5	cyclictest	2906234	-21	kworker/u4:3+events_unbound	00:28:53	1
2713178	99	60	52,6	cyclictest	2509679	-21	kworker/u4:8+events_unbound	19:16:44	1
2713175	99	60	52,6	cyclictest	2711821	-21	kworker/u4:0+events_unbound	19:11:41	0
2713178	99	59	50,6	cyclictest	2722091	-21	kworker/u4:2+events_unbound	19:50:03	1
2713178	99	59	37,7	cyclictest	2729906	-21	kworker/u4:10+events_unbound	20:25:01	1
2713175	99	59	51,6	cyclictest	2727271	-21	kworker/u4:7+events_unbound	20:06:49	0
2713175	99	59	49,7	cyclictest	2822579	-21	kworker/u4:13+events_unbound	22:55:02	0
2713175	99	59	49,7	cyclictest	2822579	-21	kworker/u4:13+events_unbound	22:55:02	0
2713175	99	58	50,6	cyclictest	2786544	-21	kworker/u4:10+events_unbound	22:07:08	0
2713175	99	58	41,7	cyclictest	2768911	-21	kworker/u4:4+events_unbound	21:47:15	0
2713178	99	57	50,5	cyclictest	2888882	-21	kworker/u4:4+events_unbound	23:52:22	1
2713175	99	56	46,8	cyclictest	2791415	-21	sshd	22:02:05	0
2713175	99	56	46,8	cyclictest	2791415	-21	sshd	22:02:05	0
2713175	99	55	44,8	cyclictest	2783608	-21	ssh	21:53:51	0
2713175	99	55	44,8	cyclictest	2783608	-21	ssh	21:53:51	0
2713175	99	55	34,7	cyclictest	2782658	-21	kworker/u4:9-rpciod	21:55:16	0
2713178	99	54	44,7	cyclictest	2738588	-21	switchtime	20:45:35	1
2713175	99	54	5,37	cyclictest	2927219	-21	ssh	00:35:25	0
2713175	99	54	45,7	cyclictest	2807544	-21	/usr/sbin/munin	22:20:24	0
2713178	99	53	46,5	cyclictest	2806944	-21	aten2__	22:20:16	1
2713178	99	53	45,6	cyclictest	2713174	-21	cyclictest	22:45:21	1
2713178	99	53	44,7	cyclictest	2714406	-21	kworker/u4:3+events_unbound	19:31:45	1
2713175	99	53	36,10	cyclictest	2874035	-21	ssh	23:35:23	0
2713175	99	53	36,10	cyclictest	2874035	-21	ssh	23:35:23	0
2713178	99	52	44,5	cyclictest	2769209	-21	sshd	21:37:27	1
2713178	99	52	44,5	cyclictest	2728298	-21	sendmail_mailqu	20:05:44	1
2713178	99	52	43,5	cyclictest	2833666	-21	/usr/sbin/munin	22:50:17	1
2713175	99	52	42,7	cyclictest	2754410	-21	awk	21:20:47	0
2713175	99	51	41,8	cyclictest	2894219	-21	sshd	23:58:28	0
2713175	99	51	38,11	cyclictest	2834659	-21	/usr/sbin/munin	22:50:48	0
2713175	99	51	30,19	cyclictest	2729068	-21	fschecks_count	20:10:18	0
2713178	99	50	44,4	cyclictest	2778077	-21	kworker/u4:7+events_unbound	21:50:03	1
2713178	99	50	44,4	cyclictest	2778077	-21	kworker/u4:7+events_unbound	21:50:02	1
2713178	99	50	43,5	cyclictest	2856921	-21	unixbench_singl	23:15:40	1
2713178	99	50	43,5	cyclictest	2816833	-21	/usr/sbin/munin	22:30:44	1
2713178	99	50	43,5	cyclictest	2789709	-21	gltestperf	22:00:25	1
2713178	99	50	43,5	cyclictest	2789709	-21	gltestperf	22:00:24	1
2713178	99	50	42,5	cyclictest	2831619	-21	kworker/u4:0+events_unbound	23:05:04	1
2713178	99	50	41,6	cyclictest	0	-21	swapper/1	00:05:34	1
2713178	99	50	34,4	cyclictest	2714407	-21	kworker/u4:4+events_unbound	19:15:02	1
2713175	99	50	42,6	cyclictest	2714408	-21	kworker/u4:7+events_unbound	19:16:41	0
2713175	99	50	31,17	cyclictest	2802540	-21	aten_r7power_en	22:15:16	0
2713175	99	50	30,17	cyclictest	0	-21	swapper/0	23:50:20	0
2713178	99	49	44,4	cyclictest	2884391	-21	kworker/u4:6+events_unbound	00:00:17	1
2713178	99	49	42,5	cyclictest	2870019	-21	mailstats	23:30:40	1
2713178	99	49	41,5	cyclictest	0	-21	swapper/1	00:30:23	1
2713178	99	49	40,6	cyclictest	2785066	-21	fschecks_time	21:55:20	1
2713178	99	49	27,14	cyclictest	2742697	-21	kworker/u4:13+events_unbound	21:20:55	1
2713178	99	48	41,5	cyclictest	2860272	-21	aten_r7power_vo	23:20:16	1
2713178	99	48	39,7	cyclictest	2755274	-21	kworker/u4:5+events_unbound	21:25:14	1
2713178	99	48	38,7	cyclictest	2717387	-21	df_abs	19:25:18	1
2713175	99	48	30,16	cyclictest	2861862	-21	kworker/u4:12-rpciod	23:35:00	0
2713178	99	47	41,4	cyclictest	2732481	-21	kworker/u4:0+events_unbound	21:17:01	1
2713178	99	47	40,5	cyclictest	2826948	-21	sshd	22:42:12	1
2713178	99	47	39,5	cyclictest	0	-21	swapper/1	23:10:37	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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