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 highest latencies:

System rack7slot2.osadl.org (updated Thu Jan 15, 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
3219221	99	106	90,12	cyclictest	3235583	-21	kworker/u4:1+events_unbound	20:15:15	1
3219220	99	96	88,6	cyclictest	3243179	-21	kworker/u4:15+events_unbound	20:45:21	0
3219221	99	89	81,5	cyclictest	3241901	-21	kworker/u4:14+events_unbound	20:55:22	1
3219221	99	89	80,7	cyclictest	3206745	-21	kworker/u4:3+events_unbound	19:20:03	1
3219221	99	87	78,7	cyclictest	3389311	-21	kworker/u4:5+events_unbound	23:52:58	1
3219220	99	85	76,7	cyclictest	3278138	-21	kworker/u4:6+events_unbound	22:00:36	0
3219221	99	84	76,5	cyclictest	3233072	-21	kworker/u4:11+events_unbound	20:25:15	1
3219221	99	84	75,7	cyclictest	3244435	-21	kworker/u4:2+events_unbound	21:05:24	1
3219221	99	83	74,6	cyclictest	3240645	-21	kworker/u4:10+events_unbound	21:10:25	1
3219221	99	76	57,7	cyclictest	3269399	-21	kworker/u4:4+events_unbound	21:40:31	1
3219220	99	74	66,6	cyclictest	3385015	-21	kworker/u4:6+events_unbound	23:58:08	0
3219220	99	72	65,5	cyclictest	3389312	-21	kworker/u4:9+events_unbound	00:28:38	0
3219221	99	71	64,5	cyclictest	3286897	-21	kworker/u4:9+events_unbound	22:10:39	1
3219220	99	71	62,7	cyclictest	3389312	-21	kworker/u4:9+events_unbound	00:13:25	0
3219221	99	70	62,6	cyclictest	3238132	-21	kworker/u4:0+events_unbound	20:45:22	1
3219221	99	69	60,6	cyclictest	3380682	-21	kworker/u4:1+events_unbound	23:46:48	1
3219220	99	69	56,11	cyclictest	3321185	-21	kworker/u4:7+events_unbound	22:35:42	0
3219220	99	69	55,10	cyclictest	37	-21	kcompactd0	21:55:31	0
3219221	99	67	61,4	cyclictest	3269398	-21	kworker/u4:2+events_unbound	22:05:37	1
3219221	99	66	59,5	cyclictest	3217964	-21	kworker/u4:6+events_unbound	19:10:01	1
3219221	99	66	57,6	cyclictest	3244436	-21	kworker/u4:4+events_unbound	21:00:25	1
3219220	99	66	58,6	cyclictest	3308125	-21	kworker/u4:3+events_unbound	22:50:45	0
3219220	99	64	56,6	cyclictest	3316823	-21	kworker/u4:5+events_unbound	22:40:42	0
3219221	99	63	56,5	cyclictest	3308129	-21	kworker/u4:8+events_unbound	22:20:41	1
3219220	99	63	54,6	cyclictest	3230533	-21	kworker/u4:14+events_unbound	19:55:02	0
3219220	99	63	49,12	cyclictest	0	-21	swapper/0	23:00:12	0
3219221	99	62	54,5	cyclictest	3340414	-21	df_abs	22:55:18	1
3219221	99	62	53,7	cyclictest	3312478	-21	kworker/u4:0+events_unbound	23:35:55	1
3219221	99	62	53,7	cyclictest	3312478	-21	kworker/u4:0+events_unbound	23:35:54	1
3219221	99	62	46,6	cyclictest	3265009	-21	kworker/u4:3+events_unbound	21:35:33	1
3219220	99	62	52,7	cyclictest	3252417	-21	kworker/u4:0+events_unbound	21:20:27	0
3219221	99	61	51,7	cyclictest	3233072	-21	kworker/u4:11+events_unbound	20:05:13	1
3219220	99	61	54,5	cyclictest	3234330	-21	kworker/u4:7+events_unbound	20:10:02	0
3219220	99	61	53,6	cyclictest	3220432	-21	kworker/u4:8+events_unbound	19:15:00	0
3219221	99	59	52,5	cyclictest	3344512	-21	ssh	23:00:14	1
3219221	99	59	49,7	cyclictest	314	-21	systemd-journal	22:40:42	1
3219220	99	58	49,5	cyclictest	3269399	-21	kworker/u4:4+events_unbound	21:39:42	0
3219220	99	57	44,9	cyclictest	37	-21	kcompactd0	22:25:15	0
3219221	99	56	47,7	cyclictest	388	-21	dbus-daemon	23:20:50	1
3219221	99	56	40,12	cyclictest	3322894	-21	cut	22:35:00	1
3219220	99	56	48,5	cyclictest	3254111	-21	date	21:15:02	0
3219221	99	55	46,6	cyclictest	3278137	-21	kworker/u4:5+events_unbound	21:45:34	1
3219221	99	54	49,3	cyclictest	3220432	-21	kworker/u4:8+events_unbound	19:35:06	1
3219221	99	54	46,6	cyclictest	3231991	-21	systemd	20:00:11	1
3219221	99	54	46,5	cyclictest	3288570	-21	latency_hist	21:55:01	1
3219221	99	54	45,7	cyclictest	3332942	-21	unixbench_singl	22:45:42	1
3219221	99	54	45,6	cyclictest	3249604	-21	diskmemload	00:15:28	1
3219220	99	54	44,6	cyclictest	3280342	-21	aten_r7power_vo	21:45:18	0
3219221	99	53	46,5	cyclictest	626	-21	munin-node	23:05:29	1
3219221	99	53	43,7	cyclictest	3235584	-21	kworker/u4:3+events_unbound	20:40:20	1
3219221	99	53	18,24	cyclictest	0	-21	swapper/1	23:55:34	1
3219220	99	53	45,6	cyclictest	3321187	-21	kworker/u4:9+events_unbound	23:11:05	0
3219220	99	53	40,10	cyclictest	3415676	-21	ssh	00:23:29	0
3219220	99	52	46,4	cyclictest	3268011	-21	sshd	21:30:30	0
3219220	99	52	43,7	cyclictest	3221898	-21	systemd	19:20:04	0
3219220	99	52	43,6	cyclictest	3374430	-21	aten_r7power_cu	23:35:15	0
3219220	99	52	43,6	cyclictest	3374430	-21	aten_r7power_cu	23:35:14	0
3219221	99	51	44,5	cyclictest	3219216	-21	cyclictest	23:40:54	1
3219221	99	51	43,6	cyclictest	3312478	-21	kworker/u4:0+events_unbound	23:30:54	1
3219221	99	51	43,5	cyclictest	3412678	-21	ssh	00:20:12	1
3219220	99	51	44,5	cyclictest	3249344	-21	awk	21:05:36	0
3219220	99	51	43,5	cyclictest	3285352	-21	proc_pri	21:50:32	0
3219220	99	51	42,6	cyclictest	3302843	-21	ssh	22:10:37	0
3219220	99	51	40,8	cyclictest	54	-21	kswapd0	23:20:11	0
3219221	99	50	43,5	cyclictest	3404635	-21	gltestperf	00:10:21	1
3219221	99	50	41,7	cyclictest	3233072	-21	kworker/u4:11+events_unbound	20:35:18	1
3219220	99	50	42,5	cyclictest	3383692	-21	/usr/sbin/munin	23:45:30	0
3219220	99	50	38,8	cyclictest	3225292	-21	timerandwakeup	19:30:34	0
3219220	99	50	37,10	cyclictest	3409394	-21	switchtime	00:15:36	0
3219220	99	49	42,5	cyclictest	3357665	-21	fschecks_time	23:15:21	0
3219220	99	49	41,5	cyclictest	3343459	-21	ssh	22:58:51	0
3219220	99	49	33,13	cyclictest	3319016	-21	wget	22:30:15	0
3219220	99	49	30,16	cyclictest	0	-21	swapper/0	19:30:00	0
3219220	99	49	2,22	cyclictest	3298051	-21	ntpq	22:05:24	0
3219221	99	48	42,4	cyclictest	3292781	-21	munin-run	22:00:00	1
3219221	99	48	41,5	cyclictest	3422281	-21	timerwakeupswit	00:30:38	1
3219221	99	48	41,5	cyclictest	3254933	-21	/usr/sbin/munin	21:15:27	1
3219221	99	48	40,7	cyclictest	3293064	-21	ssh	22:00:11	1
3219221	99	48	37,8	cyclictest	54	-21	kswapd0	23:15:13	1
3219221	99	48	2,37	cyclictest	3306608	-21	ntpq	22:15:23	1
3219220	99	48	42,4	cyclictest	3239608	-21	aten2__	20:30:16	0
3219220	99	48	41,5	cyclictest	3395956	-21	grep	00:00:17	0
3219220	99	48	41,5	cyclictest	3349722	-21	mailstats	23:05:33	0
3219220	99	48	4,14	cyclictest	3379395	-21	ntpq	23:40:28	0
3219220	99	48	40,6	cyclictest	3423311	-21	kworker/u4:4+events_unbound	00:33:38	0
3219220	99	48	38,8	cyclictest	3220820	-21	df	19:15:15	0
3219220	99	48	36,9	cyclictest	3273779	-21	kworker/u4:0-xprtiod	21:40:31	0
3219220	99	48	3,27	cyclictest	3236917	-21	lockfile-create	20:20:00	0
3219220	99	48	25,21	cyclictest	3242385	-21	fschecks_count	20:40:18	0
3219221	99	47	39,5	cyclictest	3396403	-21	/usr/sbin/munin	00:00:29	1
3219221	99	47	38,7	cyclictest	3227082	-21	aten_r7power_vo	19:40:17	1
3219221	99	47	38,6	cyclictest	0	-21	swapper/1	22:50:44	1
3219221	99	47	38,6	cyclictest	0	-21	swapper/1	22:25:29	1
3219221	99	47	37,8	cyclictest	3369874	-21	latency_hist	23:30:02	1
3219221	99	47	37,8	cyclictest	3229277	-21	kworker/u4:4+events_unbound	19:55:12	1
3219221	99	47	36,9	cyclictest	2999706	-21	kworker/u4:0+events_unbound	20:10:13	1
3219220	99	47	5,35	cyclictest	3387818	-21	ntpq	23:50:26	0
3219220	99	47	40,5	cyclictest	3258325	-21	munin-run	21:20:00	0
3219220	99	47	39,6	cyclictest	3256192	-21	kworker/u4:5+events_unbound	21:25:03	0
3219220	99	47	37,7	cyclictest	3401165	-21	/usr/sbin/munin	00:05:38	0
3219220	99	47	25,19	cyclictest	0	-21	swapper/0	23:30:01	0
3219221	99	46	40,4	cyclictest	3263239	-21	fschecks_count	21:25:19	1
3219221	99	46	38,6	cyclictest	3239697	-21	aten_r7power_vo	20:30:17	1
3219221	99	46	37,7	cyclictest	3429434	-21	sendmail	00:40:00	1
3219221	99	46	37,7	cyclictest	3357157	-21	latency_hist	23:15:02	1
3219221	99	46	35,6	cyclictest	3252417	-21	kworker/u4:0-rpciod	21:20:29	1
3219220	99	46	39,5	cyclictest	3306112	-21	wget	22:15:16	0
3219220	99	46	39,5	cyclictest	3232229	-21	df_abs	20:00:16	0
3219220	99	46	38,6	cyclictest	3426237	-21	/usr/sbin/munin	00:35:32	0
3219220	99	46	38,5	cyclictest	3237362	-21	fschecks_count	20:20:18	0
3219221	99	45	37,6	cyclictest	3220433	-21	kworker/u4:10+events_unbound	19:15:02	1
3219221	99	45	37,5	cyclictest	3403847	-21	kworker/u4:9	00:10:00	1
3219221	99	45	37,5	cyclictest	3389312	-21	kworker/u4:9+events_unbound	00:30:01	1
3219220	99	45	35,8	cyclictest	3246165	-21	df_abs	20:55:16	0
3219220	99	45	22,21	cyclictest	3241136	-21	fschecks_time	20:35:18	0
3219221	99	44	35,6	cyclictest	0	-21	swapper/1	22:35:26	1
3219221	99	44	34,7	cyclictest	3268491	-21	unixbench_multi	21:30:40	1
3219220	99	44	38,4	cyclictest	3332743	-21	threads	22:45:40	0
3219220	99	44	35,7	cyclictest	3225694	-21	aten2__	19:35:14	0
3219220	99	44	34,7	cyclictest	3374061	-21	cron	23:35:00	0
3219220	99	44	34,7	cyclictest	3230767	-21	aten_r7power_cu	19:55:15	0
3219221	99	43	36,5	cyclictest	3237104	-21	aten2__	20:20:15	1
3219221	99	43	35,6	cyclictest	3219429	-21	aten_r7power_cu	19:10:17	1
3219221	99	43	35,5	cyclictest	3245069	-21	fschecks_time	20:50:24	1
3219221	99	43	35,5	cyclictest	3245069	-21	fschecks_time	20:50:23	1
3219220	99	43	37,4	cyclictest	3227093	-21	aten_r7power_vo	19:40:16	0
3219220	99	43	35,6	cyclictest	3228543	-21	fschecks_time	19:45:19	0
3219220	99	43	33,8	cyclictest	3310901	-21	netstat	22:20:24	0
3219220	99	43	32,9	cyclictest	3239420	-21	munin-plugin-st	20:30:01	0
3219221	99	42	35,5	cyclictest	3228515	-21	fschecks_time	19:45:19	1
3219221	99	41	34,5	cyclictest	3229720	-21	fschecks_count	19:50:17	1
3219220	99	41	35,4	cyclictest	3233357	-21	aten_r7power_po	20:05:16	0
3219220	99	41	32,6	cyclictest	0	-21	swapper/0	20:50:10	0
3219220	99	41	32,6	cyclictest	0	-21	swapper/0	20:50:10	0
3219221	99	40	32,5	cyclictest	3223548	-21	gltestperf	19:25:20	1
3219220	99	40	33,5	cyclictest	3247259	-21	aten2__	21:00:15	0
3219221	99	39	25,8	cyclictest	3222978	-21	kworker/u4:13+rpciod	19:30:34	1
3219220	99	38	26,8	cyclictest	0	-21	swapper/0	19:10:02	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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