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 Fri Jan 09, 2026 00:44:12)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3271738	99	94	86,6	cyclictest	3384466	-21	kworker/u4:13+events_unbound	22:53:15	1
3271738	99	94	43,13	cyclictest	0	-21	swapper/1	00:30:31	1
3271738	99	91	85,4	cyclictest	3317220	-21	kworker/u4:3+events_unbound	21:28:02	1
3271737	99	86	66,14	cyclictest	3302201	-21	diskmemload	22:10:10	0
3271737	99	79	42,28	cyclictest	0	-21	swapper/0	22:15:11	0
3271738	99	77	59,8	cyclictest	3294493	-21	kworker/u4:15+events_unbound	21:18:02	1
3271737	99	77	8,20	cyclictest	3366172	-21	ssh	22:25:30	0
3271737	99	76	69,5	cyclictest	3290728	-21	kworker/u4:12+events_unbound	20:27:56	0
3271737	99	73	65,6	cyclictest	3321521	-21	kworker/u4:9+events_unbound	21:33:03	0
3271737	99	73	54,15	cyclictest	54	-21	kswapd0	21:45:10	0
3271738	99	72	58,9	cyclictest	3460848	-21	ntp_states	00:20:33	1
3271737	99	72	48,17	cyclictest	3417512	-21	ssh	23:27:48	0
3271738	99	71	63,5	cyclictest	3437519	-21	kworker/u4:0+events_unbound	23:55:12	1
3271738	99	71	62,7	cyclictest	3392236	-21	kworker/u4:3+events_unbound	23:03:16	1
3271738	99	68	59,7	cyclictest	3338616	-21	kworker/u4:3+events_unbound	21:58:06	1
3271738	99	66	60,4	cyclictest	3330125	-21	kworker/u4:7+events_unbound	21:43:05	1
3271738	99	66	59,5	cyclictest	3325815	-21	kworker/u4:3+events_unbound	21:38:04	1
3271738	99	64	57,5	cyclictest	3275490	-21	kworker/u4:2+events_unbound	19:47:48	1
3271737	99	63	56,5	cyclictest	3298372	-21	kworker/u4:1+events_unbound	21:05:03	0
3271737	99	63	56,5	cyclictest	3272939	-21	kworker/u4:11+events_unbound	19:50:04	0
3271737	99	63	56,5	cyclictest	3272939	-21	kworker/u4:11+events_unbound	19:50:03	0
3271738	99	61	55,4	cyclictest	3298372	-21	kworker/u4:1+events_unbound	21:12:59	1
3271738	99	61	54,5	cyclictest	3413229	-21	kworker/u4:9+events_unbound	23:28:20	1
3271738	99	61	43,6	cyclictest	3312964	-21	kworker/u4:2+events_unbound	21:23:02	1
3271737	99	61	54,5	cyclictest	3451483	-21	awk	00:10:00	0
3271738	99	60	51,6	cyclictest	3284385	-21	kworker/u4:4+events_unbound	20:00:00	1
3271737	99	60	49,8	cyclictest	3370067	-21	fschecks_time	22:30:25	0
3271738	99	59	54,4	cyclictest	3404836	-21	kworker/u4:7+events_unbound	23:13:17	1
3271737	99	59	49,8	cyclictest	3377733	-21	base64	22:40:01	0
3271737	99	58	51,5	cyclictest	3379117	-21	unixbench-2d	22:40:44	0
3271737	99	58	44,9	cyclictest	3271734	-21	cyclictest	00:02:46	0
3271738	99	57	49,6	cyclictest	3321518	-21	kworker/u4:2+events_unbound	22:03:06	1
3271737	99	57	48,6	cyclictest	3286921	-21	kworker/u4:7+events_unbound	20:19:59	0
3271738	99	56	49,5	cyclictest	3425028	-21	kworker/u4:6+events_unbound	23:44:59	1
3271738	99	56	49,5	cyclictest	3271660	-21	kworker/u4:6+events_unbound	19:42:49	1
3271738	99	55	48,5	cyclictest	3433351	-21	kworker/u4:15+events_unbound	00:03:51	1
3271738	99	55	47,5	cyclictest	3390434	-21	aten_r7power_vo	22:55:15	1
3271737	99	55	48,5	cyclictest	3304385	-21	kworker/u4:11+events_unbound	21:17:02	0
3271738	99	54	47,5	cyclictest	3298372	-21	kworker/u4:1+events_unbound	20:52:58	1
3271738	99	54	47,5	cyclictest	3288175	-21	kworker/u4:0+events_unbound	20:22:55	1
3271738	99	54	46,5	cyclictest	3464641	-21	/usr/sbin/munin	00:25:22	1
3271738	99	54	46,5	cyclictest	3271660	-21	kworker/u4:6+events_unbound	19:20:01	1
3271738	99	54	40,6	cyclictest	3288180	-21	kworker/u4:5+events_unbound	20:47:56	1
3271737	99	54	47,5	cyclictest	3461947	-21	kworker/u4:5+events_unbound	00:25:59	0
3271737	99	54	46,6	cyclictest	54	-21	kswapd0	23:55:00	0
3271737	99	54	45,7	cyclictest	388	-21	dbus-daemon	22:53:14	0
3271737	99	53	47,4	cyclictest	3280535	-21	kworker/u4:17+events_unbound	20:24:01	0
3271737	99	53	46,5	cyclictest	3283129	-21	kworker/u4:0+events_unbound	20:05:03	0
3271737	99	53	46,5	cyclictest	0	-21	swapper/0	21:35:13	0
3271738	99	52	45,5	cyclictest	3420877	-21	kworker/u4:3+events_unbound	23:38:21	1
3271738	99	52	45,5	cyclictest	3420877	-21	kworker/u4:3+events_unbound	23:38:20	1
3271738	99	52	44,5	cyclictest	3320448	-21	/usr/sbin/munin	21:30:36	1
3271737	99	52	45,5	cyclictest	3277996	-21	kworker/u4:5+events_unbound	19:43:59	0
3271737	99	52	38,8	cyclictest	3404836	-21	kworker/u4:7-rpciod	23:31:10	0
3271737	99	52	34,5	cyclictest	3361534	-21	cut	22:20:18	0
3271738	99	51	44,5	cyclictest	3445255	-21	kworker/u4:7+events_unbound	00:08:56	1
3271738	99	51	44,5	cyclictest	3370746	-21	timerandwakeup	22:30:43	1
3271737	99	51	44,5	cyclictest	3344381	-21	latency_hist	22:00:01	0
3271737	99	51	43,5	cyclictest	3348850	-21	aten_r7power_vo	22:05:18	0
3271737	99	51	30,15	cyclictest	255	50	irq/23-42890000.ethernet	22:45:36	0
3271737	99	51	21,19	cyclictest	0	-21	swapper/0	23:15:20	0
3271737	99	50	44,4	cyclictest	3345018	-21	gltestperf	22:00:22	0
3271737	99	50	44,4	cyclictest	3285712	-21	modprobe	20:05:01	0
3271737	99	50	43,5	cyclictest	3288180	-21	kworker/u4:5+events_unbound	20:49:00	0
3271737	99	50	43,5	cyclictest	3279254	-21	kworker/u4:14+events_unbound	19:38:00	0
3271738	99	49	43,5	cyclictest	3325817	-21	kworker/u4:5+events_unbound	21:47:59	1
3271738	99	49	42,5	cyclictest	3456305	-21	gltestperf	00:15:21	1
3271738	99	49	42,5	cyclictest	3340125	-21	munin-plugin-st	21:55:00	1
3271738	99	49	40,7	cyclictest	3438271	-21	systemd	23:53:22	1
3271737	99	49	5,39	cyclictest	3300534	-21	sshd	21:00:33	0
3271737	99	49	42,5	cyclictest	3328989	-21	timerwakeupswit	21:40:36	0
3271737	99	49	42,5	cyclictest	0	-21	swapper/0	21:50:14	0
3271737	99	49	41,5	cyclictest	0	-21	swapper/0	23:37:43	0
3271737	99	49	41,5	cyclictest	0	-21	swapper/0	23:37:42	0
3271738	99	48	43,4	cyclictest	3354824	-21	kworker/u4:3+events_unbound	22:18:10	1
3271738	99	48	42,4	cyclictest	3384466	-21	kworker/u4:13+events_unbound	22:49:43	1
3271737	99	48	41,5	cyclictest	3460674	-21	gcc	00:20:25	0
3271737	99	48	25,19	cyclictest	15	1	ktimers/0	23:55:21	0
3271737	99	48	19,9	cyclictest	0	-21	swapper/0	20:40:39	0
3271737	99	48	14,21	cyclictest	0	-21	swapper/0	00:10:23	0
3271738	99	47	40,5	cyclictest	3421462	-21	kworker/u4:4+events_unbound	23:35:00	1
3271738	99	47	40,5	cyclictest	3293239	-21	kworker/u4:13+events_unbound	20:42:57	1
3271738	99	47	40,4	cyclictest	3361917	-21	ssh	22:20:26	1
3271737	99	47	41,5	cyclictest	3272939	-21	kworker/u4:11+events_unbound	19:25:43	0
3271737	99	47	38,7	cyclictest	3414755	-21	awk	23:25:00	0
3271737	99	47	31,10	cyclictest	0	-21	swapper/0	23:46:09	0
3271738	99	46	42,3	cyclictest	3392237	-21	kworker/u4:4+events_unbound	23:05:16	1
3271738	99	46	39,5	cyclictest	3373808	-21	aten_r7power_cu	22:35:15	1
3271738	99	46	38,6	cyclictest	3425031	-21	kworker/u4:13+events_unbound	23:46:42	1
3271738	99	46	36,8	cyclictest	3286079	-21	df_abs	20:05:16	1
3271738	99	46	28,16	cyclictest	0	-21	swapper/1	19:15:00	1
3271737	99	46	40,5	cyclictest	3277997	-21	kworker/u4:9+events_unbound	19:32:00	0
3271737	99	46	40,4	cyclictest	3274244	-21	idleruntime-cro	19:20:01	0
3271737	99	46	39,5	cyclictest	3311857	-21	ps	21:20:35	0
3271737	99	46	28,16	cyclictest	3468247	-21	aten_r7power_cu	00:30:15	0
3271738	99	45	39,4	cyclictest	3353449	-21	/usr/sbin/munin	22:10:27	1
3271738	99	45	39,4	cyclictest	3346414	-21	kworker/u4:14+events_unbound	22:06:42	1
3271738	99	45	38,5	cyclictest	3433351	-21	kworker/u4:15+events_unbound	00:11:00	1
3271737	99	45	38,5	cyclictest	3427563	-21	fschecks_count	23:40:21	0
3271737	99	45	37,6	cyclictest	3294493	-21	kworker/u4:15+events_unbound	20:37:42	0
3271737	99	45	36,7	cyclictest	3288266	-21	latency_hist	20:15:00	0
3271737	99	45	35,8	cyclictest	3312966	-21	kworker/u4:5-rpciod	21:25:33	0
3271738	99	44	39,4	cyclictest	3279254	-21	kworker/u4:14+events_unbound	20:10:14	1
3271738	99	44	37,5	cyclictest	3472276	-21	aten2__	00:35:14	1
3271738	99	44	37,5	cyclictest	3412134	-21	unixbench_singl	23:20:37	1
3271738	99	44	36,6	cyclictest	3363381	-21	kworker/u4:8-rpciod	22:25:28	1
3271738	99	44	35,7	cyclictest	3410637	-21	sendmail	23:20:00	1
3271738	99	44	33,9	cyclictest	0	-21	swapper/1	19:40:00	1
3271737	99	44	38,5	cyclictest	3299626	-21	kworker/u4:6+events_unbound	20:58:59	0
3271737	99	44	37,5	cyclictest	3472809	-21	diskmemload	00:35:21	0
3271737	99	44	37,5	cyclictest	3288180	-21	kworker/u4:5+events_unbound	20:51:00	0
3271737	99	44	37,5	cyclictest	3269252	-21	kworker/u4:4+events_unbound	19:11:01	0
3271737	99	44	35,6	cyclictest	3388051	-21	kworker/u4:15-rpciod	23:10:17	0
3271737	99	44	34,7	cyclictest	3306537	-21	latency_hist	21:15:02	0
3271738	99	43	37,4	cyclictest	3380877	-21	sshd	22:43:32	1
3271738	99	43	36,4	cyclictest	0	-21	swapper/1	19:25:29	1
3271737	99	43	37,4	cyclictest	3457057	-21	unixbench_multi	00:15:40	0
3271737	99	43	37,4	cyclictest	0	-21	swapper/0	23:05:26	0
3271738	99	42	33,6	cyclictest	0	-21	swapper/1	20:00:17	1
3271737	99	42	4,8	cyclictest	15	1	ktimers/0	23:01:13	0
3271737	99	42	37,3	cyclictest	255	50	irq/23-42890000.ethernet	22:55:26	0
3271737	99	42	33,7	cyclictest	3284257	-21	unixbench-2d	19:55:36	0
3271738	99	41	34,5	cyclictest	3274773	-21	fschecks_time	19:20:20	1
3271738	99	41	32,7	cyclictest	0	-21	swapper/1	20:40:01	1
3271737	99	41	36,4	cyclictest	3266870	-21	kworker/u4:16+events_unbound	19:21:00	0
3271737	99	41	28,8	cyclictest	3280822	-21	apt-get	19:45:13	0
3271738	99	40	33,5	cyclictest	3272939	-21	kworker/u4:11+events_unbound	19:35:00	1
3271738	99	40	32,6	cyclictest	0	-21	swapper/1	20:20:01	1
3271738	99	40	29,9	cyclictest	0	-21	swapper/1	21:05:20	1
3271738	99	40	28,10	cyclictest	0	-21	swapper/1	20:35:00	1
3271738	99	40	27,10	cyclictest	0	-21	swapper/1	19:50:36	1
3271738	99	40	27,10	cyclictest	0	-21	swapper/1	19:50:35	1
3271737	99	40	30,8	cyclictest	3292445	-21	grep	20:30:19	0
3271738	99	39	29,8	cyclictest	3299909	-21	aten_r7power_cu	21:00:14	1
3271738	99	38	27,8	cyclictest	0	-21	swapper/1	20:25:12	1
3271738	99	38	26,9	cyclictest	0	-21	swapper/1	20:55:22	1
3271738	99	35	26,7	cyclictest	0	-21	swapper/1	19:10:02	1
3271738	99	35	26,7	cyclictest	0	-21	swapper/1	19:10:01	1
3271737	99	35	17,14	cyclictest	3271734	-21	cyclictest	19:10:00	0
3271737	99	35	17,14	cyclictest	3271734	-21	cyclictest	19:10:00	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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