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 all highest latencies:

System rack7slot2.osadl.org (updated Sat Jul 25, 2026 12:44:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3384961	99	110	103,5	cyclictest	3543085	-21	kworker/u4:0+events_unbound	11:35:58	0
3384961	99	110	103,5	cyclictest	3543085	-21	kworker/u4:0+events_unbound	11:35:58	0
3384961	99	88	80,6	cyclictest	3398969	-21	kworker/u4:7+events_unbound	08:25:22	0
3384961	99	84	35,5	cyclictest	3515075	-21	gltestperf	11:00:21	0
3384961	99	80	71,6	cyclictest	3405445	-21	kworker/u4:10+events_unbound	09:15:40	0
3384961	99	80	43,34	cyclictest	3497862	-21	/usr/sbin/munin	10:40:43	0
3384962	99	76	69,5	cyclictest	3525759	-21	kworker/u4:3+events_unbound	11:20:54	1
3384961	99	75	28,7	cyclictest	3399406	-21	fschecks_count	08:05:22	0
3384961	99	74	66,5	cyclictest	3485941	-21	kworker/u4:11+events_unbound	10:30:48	0
3384961	99	73	35,35	cyclictest	3402813	-21	cron	08:20:00	0
3384962	99	72	62,8	cyclictest	3405445	-21	kworker/u4:10+events_unbound	09:00:37	1
3384961	99	71	36,33	cyclictest	3403420	-21	fschecks_time	08:20:24	0
3384961	99	71	32,36	cyclictest	3392882	-21	aten_r7power_po	07:40:17	0
3384961	99	71	31,8	cyclictest	3552060	-21	kworker/u4:0+rpciod	11:45:25	0
3384961	99	70	57,9	cyclictest	3405444	-21	kworker/u4:9+events_unbound	08:50:32	0
3384962	99	69	60,7	cyclictest	3463904	-21	kworker/u4:13+events_unbound	10:15:47	1
3384962	99	69	60,7	cyclictest	3463904	-21	kworker/u4:13+events_unbound	10:15:47	1
3384961	99	69	9,28	cyclictest	3528552	-21	ntpq	11:15:30	0
3384961	99	69	35,5	cyclictest	3496542	-21	idleruntime-cro	10:40:00	0
3384961	99	69	34,5	cyclictest	3457372	-21	/usr/sbin/munin	09:55:26	0
3384961	99	69	34,4	cyclictest	0	-21	swapper/0	12:00:41	0
3384961	99	68	29,7	cyclictest	0	-21	swapper/0	08:40:49	0
3384961	99	68	23,13	cyclictest	256	50	irq/23-42890000.ethernet	10:10:08	0
3384961	99	67	33,6	cyclictest	0	-21	swapper/0	11:05:20	0
3384961	99	67	31,7	cyclictest	3511363	-21	unixbench_multi	10:55:40	0
3384961	99	67	30,6	cyclictest	256	50	irq/23-42890000.ethernet	10:20:25	0
3384961	99	66	31,8	cyclictest	3423256	-21	kworker/u4:2+rpciod	09:35:29	0
3384961	99	66	31,32	cyclictest	3386788	-21	gltestperf	07:15:20	0
3384961	99	65	27,9	cyclictest	53	-21	kswapd0	12:25:06	0
3384961	99	65	27,7	cyclictest	0	-21	swapper/0	11:25:12	0
3384962	99	64	53,8	cyclictest	37	-21	kcompactd0	12:00:19	1
3384961	99	64	9,14	cyclictest	3425403	-21	df_inode	09:20:19	0
3384961	99	64	25,7	cyclictest	0	-21	swapper/0	07:10:02	0
3384961	99	64	1,27	cyclictest	3474629	-21	apt-get	10:15:13	0
3384961	99	64	1,27	cyclictest	3474629	-21	apt-get	10:15:12	0
3384962	99	61	53,6	cyclictest	3405444	-21	kworker/u4:9+events_unbound	08:35:26	1
3384962	99	61	53,6	cyclictest	3376158	-21	kworker/u4:6+events_unbound	07:15:00	1
3384962	99	61	48,7	cyclictest	3398969	-21	kworker/u4:7-xprtiod	08:20:11	1
3384962	99	61	46,9	cyclictest	0	-21	swapper/1	09:55:15	1
3384961	99	61	28,6	cyclictest	0	-21	swapper/0	12:10:19	0
3384961	99	61	28,6	cyclictest	0	-21	swapper/0	12:10:18	0
3384961	99	60	27,9	cyclictest	0	-21	swapper/0	09:10:15	0
3384962	99	59	51,5	cyclictest	3171707	-21	kworker/u4:9+events_unbound	07:25:03	1
3384962	99	57	50,5	cyclictest	3499480	-21	kworker/u4:15+events_unbound	10:47:44	1
3384962	99	57	48,7	cyclictest	3454088	-21	kworker/u4:10+events_unbound	10:05:45	1
3384962	99	57	48,6	cyclictest	3436383	-21	kworker/u4:5+events_unbound	09:35:44	1
3384962	99	57	42,12	cyclictest	53	-21	kswapd0	11:40:35	1
3384961	99	57	44,8	cyclictest	3545136	-21	ssh	11:35:00	0
3384962	99	56	51,3	cyclictest	3499480	-21	kworker/u4:15+events_unbound	11:30:59	1
3384962	99	56	50,4	cyclictest	3386178	-21	kworker/u4:4+events_unbound	07:20:01	1
3384962	99	56	49,5	cyclictest	3499478	-21	kworker/u4:1+events_unbound	11:00:00	1
3384962	99	56	46,7	cyclictest	3560279	-21	systemd	11:50:59	1
3384962	99	55	46,7	cyclictest	3534781	-21	kworker/u4:10+events_unbound	11:25:55	1
3384962	99	55	46,7	cyclictest	3392571	-21	kworker/u4:14+events_unbound	07:45:07	1
3384962	99	55	44,4	cyclictest	3406719	-21	kworker/u4:17+events_unbound	08:40:27	1
3384961	99	55	36,16	cyclictest	3412127	-21	aten2__	08:55:16	0
3384962	99	54	47,5	cyclictest	0	-21	swapper/1	11:05:15	1
3384961	99	53	34,16	cyclictest	3585385	-21	basename	12:20:18	0
3384961	99	53	3,37	cyclictest	3506423	-21	ssh	10:50:30	0
3384962	99	52	45,5	cyclictest	3595194	-21	switchtime	12:30:40	1
3384962	99	52	45,5	cyclictest	3595194	-21	switchtime	12:30:40	1
3384962	99	52	34,14	cyclictest	0	-21	swapper/1	11:35:33	1
3384962	99	52	34,14	cyclictest	0	-21	swapper/1	11:35:33	1
3384961	99	52	44,5	cyclictest	3559113	-21	fschecks_count	11:50:22	0
3384961	99	52	42,7	cyclictest	53	-21	kswapd0	11:20:15	0
3384961	99	52	31,19	cyclictest	3391765	-21	fschecks_count	07:35:19	0
3384962	99	51	44,5	cyclictest	3411432	-21	sshd	08:50:31	1
3384962	99	51	43,6	cyclictest	3390030	-21	kworker/u4:6+events_unbound	08:00:10	1
3384962	99	51	38,9	cyclictest	0	-21	swapper/1	09:40:35	1
3384962	99	51	38,10	cyclictest	37	-21	kcompactd0	09:49:11	1
3384962	99	51	32,11	cyclictest	3580507	-21	modprobe	12:15:00	1
3384962	99	51	32,11	cyclictest	3580507	-21	modprobe	12:15:00	1
3384961	99	51	2,41	cyclictest	3594886	-21	ntpq	12:30:31	0
3384961	99	51	2,41	cyclictest	3594886	-21	ntpq	12:30:31	0
3384962	99	50	39,8	cyclictest	3461671	-21	grep	10:00:23	1
3384961	99	50	41,6	cyclictest	3591885	-21	kworker/u4:1+events_unbound	12:36:07	0
3384961	99	50	38,9	cyclictest	0	-21	swapper/0	12:20:00	0
3384962	99	49	42,5	cyclictest	3590078	-21	fschecks_count	12:25:24	1
3384962	99	49	40,7	cyclictest	3497365	-21	gltestperf	10:40:27	1
3384962	99	49	37,6	cyclictest	37	-21	kcompactd0	07:50:18	1
3384961	99	49	42,5	cyclictest	3386179	-21	kworker/u4:5+events_unbound	08:35:02	0
3384961	99	49	39,8	cyclictest	3434459	-21	/usr/sbin/munin	09:30:20	0
3384962	99	48	41,5	cyclictest	3435515	-21	who	09:30:42	1
3384961	99	48	41,5	cyclictest	3436383	-21	kworker/u4:5+events_unbound	09:55:01	0
3384961	99	48	39,6	cyclictest	3413686	-21	fschecks_time	09:00:21	0
3384961	99	48	38,8	cyclictest	3501870	-21	/usr/sbin/munin	10:45:24	0
3384961	99	48	37,6	cyclictest	3569398	-21	kworker/u4:13+events_unbound	12:06:02	0
3384962	99	47	41,4	cyclictest	3485937	-21	kworker/u4:3+events_unbound	10:30:00	1
3384962	99	47	40,5	cyclictest	3602666	-21	sendmail	12:40:00	1
3384962	99	47	40,5	cyclictest	3470468	-21	cpu	10:10:23	1
3384962	99	47	40,5	cyclictest	3430913	-21	unixbench_multi	09:25:41	1
3384962	99	47	40,5	cyclictest	3399357	-21	df_abs	08:05:20	1
3384962	99	47	38,6	cyclictest	3574522	-21	kworker/u4:6+events_unbound	12:18:07	1
3384962	99	47	37,7	cyclictest	3417359	-21	unixbench-2d	09:10:45	1
3384962	99	47	34,9	cyclictest	37	-21	kcompactd0	08:45:27	1
3384961	99	47	40,5	cyclictest	3524549	-21	sh	11:10:42	0
3384961	99	47	40,5	cyclictest	3384958	-21	cyclictest	11:55:12	0
3384961	99	47	36,8	cyclictest	3407343	-21	gltestperf	08:35:21	0
3384961	99	47	36,8	cyclictest	3394146	-21	aten_r7power_en	07:45:17	0
3384961	99	47	26,6	cyclictest	0	-21	swapper/0	10:00:41	0
3384962	99	46	39,5	cyclictest	3528117	-21	fschecks_count	11:15:20	1
3384962	99	46	39,5	cyclictest	3413232	-21	idleruntime-cro	09:00:00	1
3384962	99	46	37,6	cyclictest	3387826	-21	cpu	07:20:18	1
3384962	99	46	37,6	cyclictest	0	-21	swapper/1	09:15:22	1
3384962	99	46	36,7	cyclictest	0	-21	swapper/1	11:55:31	1
3384962	99	46	35,8	cyclictest	3396945	-21	fschecks_time	07:55:21	1
3384961	99	46	37,6	cyclictest	3443579	-21	grep	09:40:20	0
3384961	99	46	37,6	cyclictest	3398089	-21	df_abs	08:00:16	0
3384961	99	46	35,8	cyclictest	3550490	-21	/usr/sbin/munin	11:40:24	0
3384961	99	46	30,14	cyclictest	3469900	-21	sh	10:10:01	0
3384961	99	46	24,19	cyclictest	0	-21	swapper/0	09:05:37	0
3384962	99	45	6,27	cyclictest	3479850	-21	ntpq	10:20:29	1
3384962	99	45	36,7	cyclictest	3493810	-21	sshd	10:35:47	1
3384962	99	45	35,7	cyclictest	0	-21	swapper/1	10:30:32	1
3384962	99	45	33,8	cyclictest	0	-21	swapper/1	09:20:41	1
3384962	99	45	31,10	cyclictest	3554779	-21	expr	11:45:20	1
3384961	99	45	37,6	cyclictest	3483855	-21	fschecks_count	10:25:20	0
3384961	99	45	36,7	cyclictest	3430219	-21	kernelversion	09:25:23	0
3384962	99	44	38,4	cyclictest	3585403	-21	aten_r7power_en	12:20:18	1
3384962	99	44	37,5	cyclictest	3515160	-21	kernelversion	11:00:24	1
3384962	99	44	35,7	cyclictest	3506500	-21	ntp_kernel_pll_	10:50:33	1
3384962	99	44	34,7	cyclictest	0	-21	swapper/1	12:05:19	1
3384961	99	44	37,5	cyclictest	3447839	-21	aten_r7power_po	09:45:17	0
3384961	99	44	35,7	cyclictest	3390318	-21	aten_r7power_po	07:30:16	0
3384961	99	44	34,7	cyclictest	3390049	-21	kworker/u4:2	07:30:00	0
3384962	99	43	36,5	cyclictest	3405983	-21	fschecks_time	08:30:21	1
3384962	99	43	36,5	cyclictest	3390515	-21	fschecks_count	07:30:19	1
3384962	99	43	35,5	cyclictest	3452083	-21	modprobe	09:50:02	1
3384962	99	43	34,5	cyclictest	0	-21	swapper/1	08:20:01	1
3384962	99	43	33,8	cyclictest	0	-21	swapper/1	11:10:30	1
3384961	99	42	33,7	cyclictest	3387705	-21	aten2__	07:20:16	0
3384961	99	42	32,8	cyclictest	1	-21	systemd	07:15:01	0
3384962	99	41	32,7	cyclictest	3400930	-21	kernelversion	08:10:24	1
3384962	99	41	31,7	cyclictest	0	-21	swapper/1	08:25:28	1
3384962	99	41	30,8	cyclictest	0	-21	swapper/1	07:40:36	1
3384961	99	41	32,6	cyclictest	0	-21	swapper/0	08:45:37	0
3384961	99	41	24,11	cyclictest	3397703	-21	cron	08:00:00	0
3384961	99	40	33,5	cyclictest	3395656	-21	fschecks_time	07:50:19	0
3384962	99	39	26,10	cyclictest	0	-21	swapper/1	07:35:16	1
3384962	99	39	23,12	cyclictest	3415247	-21	ntpq	09:05:28	1
3384961	99	39	32,5	cyclictest	3400848	-21	gltestperf	08:10:22	0
3384962	99	35	25,7	cyclictest	0	-21	swapper/1	07:10:02	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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