OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

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 Mon Mar 16, 2026 12:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3515626	99	117	105,5	cyclictest	3682191	-21	kworker/u4:2+events_unbound	11:51:11	1
3515626	99	108	88,6	cyclictest	3708121	-21	kworker/u4:2+events_unbound	12:16:14	1
3515623	99	102	95,4	cyclictest	3519510	-21	kworker/u4:3+events_unbound	08:05:01	0
3515623	99	99	84,5	cyclictest	3633546	-21	kworker/u4:12+events_unbound	10:50:59	0
3515626	99	95	82,5	cyclictest	3542738	-21	kworker/u4:8+events_unbound	09:05:40	1
3515626	99	93	86,5	cyclictest	3571845	-21	kworker/u4:4+events_unbound	09:40:47	1
3515626	99	92	85,5	cyclictest	3576452	-21	kworker/u4:5+events_unbound	09:45:48	1
3515626	99	91	84,5	cyclictest	3647059	-21	kworker/u4:9+events_unbound	11:06:03	1
3515623	99	91	83,6	cyclictest	3656019	-21	kworker/u4:1+events_unbound	11:16:05	0
3515623	99	87	79,5	cyclictest	3531167	-21	kworker/u4:12+events_unbound	08:10:01	0
3515626	99	86	78,6	cyclictest	3520780	-21	kworker/u4:0+events_unbound	07:45:07	1
3515623	99	85	78,5	cyclictest	3593819	-21	kworker/u4:16+events_unbound	10:25:54	0
3515623	99	85	76,6	cyclictest	3535008	-21	kworker/u4:3+events_unbound	08:25:02	0
3515626	99	84	75,7	cyclictest	3593819	-21	kworker/u4:16+events_unbound	10:10:51	1
3515623	99	84	69,4	cyclictest	3695470	-21	kworker/u4:1+events_unbound	12:05:36	0
3515626	99	82	74,6	cyclictest	3647059	-21	kworker/u4:9+events_unbound	11:11:03	1
3515623	99	82	75,5	cyclictest	3616294	-21	kworker/u4:6+events_unbound	10:30:55	0
3515623	99	82	75,5	cyclictest	3529812	-21	kworker/u4:9+events_unbound	09:15:43	0
3515626	99	81	73,6	cyclictest	3529812	-21	kworker/u4:9+events_unbound	09:00:40	1
3515623	99	81	65,5	cyclictest	3523316	-21	kworker/u4:10+events_unbound	08:30:01	0
3515623	99	80	72,5	cyclictest	3638021	-21	kworker/u4:2+events_unbound	10:56:02	0
3515623	99	79	71,6	cyclictest	3647055	-21	kworker/u4:5+events_unbound	11:26:05	0
3515623	99	77	70,5	cyclictest	3536279	-21	kworker/u4:13+events_unbound	09:10:42	0
3515623	99	76	69,5	cyclictest	3660531	-21	kworker/u4:0+events_unbound	12:01:14	0
3515623	99	76	69,5	cyclictest	3660531	-21	kworker/u4:0+events_unbound	12:01:13	0
3515623	99	74	46,23	cyclictest	53	-21	kswapd0	10:35:17	0
3515626	99	73	66,5	cyclictest	3519509	-21	kworker/u4:1+events_unbound	07:35:02	1
3515626	99	72	66,4	cyclictest	53	-21	kswapd0	12:10:12	1
3515623	99	70	64,4	cyclictest	3682194	-21	kworker/u4:7+events_unbound	11:46:12	0
3515623	99	69	61,6	cyclictest	3580950	-21	kworker/u4:7+events_unbound	09:55:49	0
3515626	99	68	48,8	cyclictest	3541466	-21	kworker/u4:4+events_unbound	09:14:59	1
3515623	99	68	49,6	cyclictest	3647055	-21	kworker/u4:5+events_unbound	11:02:42	0
3515626	99	66	52,5	cyclictest	3725915	-21	kworker/u4:14+events_unbound	12:40:00	1
3515626	99	66	51,5	cyclictest	3469748	-21	kworker/u4:3+events_unbound	07:15:01	1
3515623	99	66	54,6	cyclictest	3562700	-21	kworker/u4:0+events_unbound	09:30:45	0
3515623	99	65	46,17	cyclictest	53	-21	kswapd0	10:20:01	0
3515623	99	64	58,4	cyclictest	3576451	-21	kworker/u4:1+events_unbound	10:05:02	0
3515623	99	64	47,5	cyclictest	3598315	-21	kworker/u4:10+events_unbound	10:10:22	0
3515623	99	64	43,5	cyclictest	3576451	-21	kworker/u4:1+events_unbound	09:44:09	0
3515626	99	63	55,6	cyclictest	3527150	-21	kworker/u4:13+events_unbound	08:00:03	1
3515623	99	63	51,6	cyclictest	3647055	-21	kworker/u4:5+events_unbound	11:55:12	0
3515623	99	63	51,6	cyclictest	3647055	-21	kworker/u4:5+events_unbound	11:55:12	0
3515626	99	62	55,5	cyclictest	3519509	-21	kworker/u4:1+events_unbound	07:50:06	1
3515626	99	62	51,8	cyclictest	53	-21	kswapd0	12:00:01	1
3515626	99	62	51,8	cyclictest	53	-21	kswapd0	12:00:00	1
3515623	99	62	55,5	cyclictest	3562701	-21	kworker/u4:1+events_unbound	09:35:47	0
3515626	99	61	53,6	cyclictest	3523316	-21	kworker/u4:10+events_unbound	08:50:00	1
3515626	99	61	49,9	cyclictest	53	-21	kswapd0	10:35:19	1
3515623	99	61	49,6	cyclictest	3686617	-21	kworker/u4:8+events_unbound	11:50:36	0
3515623	99	61	38,20	cyclictest	3582673	-21	latency_hist	09:50:01	0
3515626	99	60	52,6	cyclictest	3522048	-21	kworker/u4:8+events_unbound	08:30:29	1
3515626	99	59	53,4	cyclictest	3500371	-21	kworker/u4:16+events_unbound	08:05:13	1
3515626	99	59	45,9	cyclictest	3535027	-21	modprobe	08:25:00	1
3515626	99	58	51,5	cyclictest	3616294	-21	kworker/u4:6+events_unbound	10:31:09	1
3515623	99	58	39,17	cyclictest	3583013	-21	aten_r7power_en	09:50:16	0
3515626	99	57	50,5	cyclictest	3580948	-21	kworker/u4:3+events_unbound	09:50:02	1
3515626	99	57	50,5	cyclictest	3519512	-21	kworker/u4:7+events_unbound	07:40:06	1
3515626	99	57	49,5	cyclictest	3717040	-21	kworker/u4:1+events_unbound	12:25:59	1
3515623	99	57	44,4	cyclictest	3598315	-21	kworker/u4:10+events_unbound	10:20:21	0
3515623	99	57	40,8	cyclictest	0	-21	swapper/0	07:10:01	0
3515626	99	56	40,11	cyclictest	0	-21	swapper/1	11:25:38	1
3515623	99	56	33,8	cyclictest	3719361	-21	aten_r7power_po	12:25:14	0
3515626	99	55	48,5	cyclictest	3536279	-21	kworker/u4:13+events_unbound	08:50:01	1
3515626	99	55	47,6	cyclictest	3593819	-21	kworker/u4:16+events_unbound	10:21:43	1
3515626	99	55	38,13	cyclictest	3636150	-21	cpu	10:50:18	1
3515623	99	55	46,6	cyclictest	3660531	-21	kworker/u4:0+events_unbound	11:36:09	0
3515623	99	55	45,8	cyclictest	3647059	-21	kworker/u4:9+events_unbound	11:06:08	0
3515626	99	54	47,5	cyclictest	53	-21	kswapd0	12:00:33	1
3515626	99	54	47,5	cyclictest	53	-21	kswapd0	12:00:32	1
3515626	99	54	43,6	cyclictest	0	-21	swapper/1	07:15:01	1
3515626	99	54	43,6	cyclictest	0	-21	swapper/1	07:15:01	1
3515626	99	54	42,9	cyclictest	0	-21	swapper/1	09:55:13	1
3515623	99	54	50,3	cyclictest	3695474	-21	kworker/u4:9+events_unbound	12:10:16	0
3515623	99	54	46,6	cyclictest	3576451	-21	kworker/u4:1+events_unbound	10:00:03	0
3515623	99	54	44,7	cyclictest	3556038	-21	aten2__	09:20:15	0
3515623	99	53	46,5	cyclictest	3677712	-21	kworker/u4:1+events_unbound	11:41:01	0
3515623	99	53	45,5	cyclictest	3723969	-21	fschecks_time	12:30:18	0
3515623	99	53	44,7	cyclictest	3712563	-21	kworker/u4:9+events_unbound	12:21:16	0
3515626	99	52	7,35	cyclictest	3724458	-21	ssh	12:30:33	1
3515626	99	52	45,5	cyclictest	3553531	-21	kworker/u4:20+events_unbound	09:30:01	1
3515626	99	52	44,6	cyclictest	3682193	-21	kworker/u4:6+events_unbound	11:44:58	1
3515626	99	52	42,7	cyclictest	0	-21	swapper/1	09:35:29	1
3515626	99	52	39,8	cyclictest	3565315	-21	diskmemload	09:30:19	1
3515626	99	52	37,7	cyclictest	0	-21	swapper/1	07:25:34	1
3515626	99	51	43,6	cyclictest	3686617	-21	kworker/u4:8+events_unbound	11:49:00	1
3515626	99	51	36,6	cyclictest	0	-21	swapper/1	08:40:30	1
3515626	99	51	35,11	cyclictest	3715842	-21	ssh	12:20:37	1
3515626	99	50	43,5	cyclictest	3500371	-21	kworker/u4:16+events_unbound	08:10:03	1
3515626	99	50	42,6	cyclictest	3562700	-21	kworker/u4:0+events_unbound	10:05:01	1
3515626	99	50	41,6	cyclictest	3529812	-21	kworker/u4:9+events_unbound	08:55:03	1
3515626	99	50	35,6	cyclictest	3660531	-21	kworker/u4:0+events_unbound	12:09:22	1
3515626	99	50	33,7	cyclictest	3542738	-21	kworker/u4:8+events_unbound	09:22:32	1
3515626	99	50	32,7	cyclictest	3656019	-21	kworker/u4:1+events_unbound	11:22:09	1
3515623	99	50	43,5	cyclictest	3711463	-21	mailstats	12:15:38	0
3515623	99	50	42,6	cyclictest	3560990	-21	/usr/sbin/munin	09:25:20	0
3515623	99	50	41,6	cyclictest	3627473	-21	/usr/sbin/munin	10:40:23	0
3515626	99	49	42,5	cyclictest	3602803	-21	kworker/u4:5+events_unbound	10:17:02	1
3515626	99	49	41,6	cyclictest	53	-21	kswapd0	10:05:12	1
3515626	99	49	41,6	cyclictest	3677225	-21	sshd	11:36:09	1
3515623	99	49	40,6	cyclictest	3728725	-21	ntp_offset	12:35:30	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


Access: public		Short link to this page
This page was last modified on 2019-05-28 - 00:17