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 Fri Apr 03, 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
2528652	99	97	87,7	cyclictest	2606634	-21	kworker/u4:6+events_unbound	22:08:11	0
2528652	99	87	78,7	cyclictest	2571156	-21	kworker/u4:2+events_unbound	21:23:05	0
2528654	99	84	75,7	cyclictest	2580214	-21	kworker/u4:6+events_unbound	21:33:05	1
2528652	99	83	77,4	cyclictest	2659767	-21	kworker/u4:9+events_unbound	23:03:18	0
2528654	99	82	75,5	cyclictest	2690244	-21	kworker/u4:8+events_unbound	23:58:25	1
2528654	99	82	50,6	cyclictest	2605055	-21	gltestperf	22:00:19	1
2528654	99	77	67,7	cyclictest	2681426	-21	kworker/u4:2+events_unbound	23:38:21	1
2528654	99	75	68,5	cyclictest	2535074	-21	kworker/u4:3+events_unbound	21:18:04	1
2528652	99	75	67,6	cyclictest	2712459	-21	kworker/u4:7+events_unbound	00:18:27	0
2528652	99	75	64,7	cyclictest	2681426	-21	kworker/u4:2+events_unbound	23:30:12	0
2528654	99	74	67,5	cyclictest	2659762	-21	kworker/u4:2+events_unbound	23:05:01	1
2528654	99	70	62,6	cyclictest	2575666	-21	kworker/u4:5+events_unbound	21:43:08	1
2528652	99	70	57,10	cyclictest	0	-21	swapper/0	23:05:32	0
2528654	99	69	61,6	cyclictest	2694690	-21	kworker/u4:12+events_unbound	23:53:24	1
2528654	99	68	60,5	cyclictest	2716867	-21	kworker/u4:13+events_unbound	00:13:27	1
2528652	99	68	60,6	cyclictest	2629033	-21	kworker/u4:1+events_unbound	22:28:13	0
2528652	99	68	48,16	cyclictest	2690242	-21	kworker/u4:6+events_unbound	23:40:13	0
2528654	99	67	59,5	cyclictest	2629038	-21	kworker/u4:10+events_unbound	22:40:00	1
2528654	99	66	58,5	cyclictest	2624566	-21	kworker/u4:5+events_unbound	22:30:01	1
2528654	99	65	46,5	cyclictest	2571157	-21	kworker/u4:4+events_unbound	21:47:42	1
2528652	99	64	56,6	cyclictest	2549322	-21	kworker/u4:0+events_unbound	21:13:03	0
2528652	99	64	56,5	cyclictest	2575668	-21	kworker/u4:7+events_unbound	21:30:15	0
2528652	99	64	41,5	cyclictest	2580212	-21	kworker/u4:1+events_unbound	21:46:41	0
2528654	99	63	51,7	cyclictest	0	-21	swapper/1	21:20:11	1
2528654	99	62	51,8	cyclictest	378	-21	dbus-daemon	00:23:27	1
2528652	99	61	53,6	cyclictest	2659762	-21	kworker/u4:2+events_unbound	23:18:20	0
2528652	99	61	53,6	cyclictest	2602121	-21	kworker/u4:8+events_unbound	22:43:16	0
2528652	99	61	37,21	cyclictest	2557533	-21	fschecks_count	21:00:16	0
2528654	99	60	52,6	cyclictest	2646306	-21	kworker/u4:0+events_unbound	23:05:02	1
2528654	99	60	52,6	cyclictest	2549323	-21	kworker/u4:1+events_unbound	20:27:55	1
2528654	99	60	49,8	cyclictest	53	-21	kswapd0	23:45:21	1
2528652	99	60	53,5	cyclictest	2526049	-21	kworker/u4:8+events_unbound	19:30:00	0
2528654	99	59	51,6	cyclictest	2736502	-21	fschecks_count	00:30:22	1
2528654	99	58	48,8	cyclictest	315	-21	systemd-journal	23:13:18	1
2528652	99	58	50,6	cyclictest	2526051	-21	kworker/u4:11+events_unbound	19:17:39	0
2528654	99	57	49,6	cyclictest	2538916	-21	kworker/u4:20+events_unbound	20:17:54	1
2528654	99	57	49,6	cyclictest	2538916	-21	kworker/u4:20+events_unbound	20:17:53	1
2528654	99	57	49,5	cyclictest	2615609	-21	kworker/u4:4+events_unbound	22:13:12	1
2528652	99	57	48,6	cyclictest	2568768	-21	latency_hist	21:20:02	0
2528654	99	56	48,6	cyclictest	2538916	-21	kworker/u4:20+events_unbound	19:56:01	1
2528654	99	56	48,6	cyclictest	2535077	-21	kworker/u4:13+events_unbound	20:02:50	1
2528654	99	56	33,12	cyclictest	2699110	-21	kworker/u4:1+events_unbound	00:05:33	1
2528652	99	56	48,6	cyclictest	2655254	-21	kworker/u4:12+events_unbound	23:00:01	0
2528652	99	56	48,6	cyclictest	2655254	-21	kworker/u4:12+events_unbound	23:00:00	0
2528652	99	56	47,6	cyclictest	2584761	-21	kworker/u4:11+events_unbound	21:38:07	0
2528652	99	56	37,17	cyclictest	2740158	-21	cron	00:35:01	0
2528654	99	55	46,7	cyclictest	2629034	-21	kworker/u4:2+events_unbound	22:33:14	1
2528652	99	55	42,9	cyclictest	2692238	-21	cat	23:40:01	0
2528654	99	54	48,4	cyclictest	2564257	-21	latency_hist	21:15:02	1
2528654	99	54	47,4	cyclictest	0	-21	swapper/1	19:20:12	1
2528652	99	54	46,6	cyclictest	2629033	-21	kworker/u4:1+events_unbound	22:45:04	0
2528652	99	54	46,6	cyclictest	2629033	-21	kworker/u4:1+events_unbound	22:45:03	0
2528652	99	54	45,7	cyclictest	315	-21	systemd-journal	19:56:01	0
2528652	99	54	44,7	cyclictest	2513237	-21	kworker/u4:0+events_unbound	19:50:00	0
2528654	99	53	46,4	cyclictest	0	-21	swapper/1	22:15:26	1
2528654	99	53	42,9	cyclictest	2683590	-21	latency_hist	23:30:01	1
2528652	99	53	44,7	cyclictest	2720005	-21	unixbench_singl	00:10:40	0
2528652	99	53	42,8	cyclictest	2540279	-21	systemd	19:52:46	0
2528654	99	52	45,5	cyclictest	0	-21	swapper/1	23:20:14	1
2528654	99	52	44,6	cyclictest	2549330	-21	kworker/u4:10+events_unbound	20:32:56	1
2528654	99	52	44,6	cyclictest	2549330	-21	kworker/u4:10+events_unbound	20:32:56	1
2528654	99	52	43,7	cyclictest	2693620	-21	timerandwakeup	23:40:40	1
2528654	99	52	39,5	cyclictest	2549324	-21	kworker/u4:2+events_unbound	20:47:56	1
2528652	99	52	45,5	cyclictest	2728612	-21	unixbench-2d	00:20:39	0
2528652	99	52	44,6	cyclictest	2575666	-21	kworker/u4:5+events_unbound	21:58:10	0
2528654	99	51	43,6	cyclictest	2549323	-21	kworker/u4:1+events_unbound	20:42:56	1
2528654	99	51	38,11	cyclictest	2544239	-21	sh	20:10:00	1
2528652	99	51	41,8	cyclictest	37	-21	kcompactd0	23:45:20	0
2528652	99	51	41,8	cyclictest	2673136	-21	kworker/u4:10+events_unbound	23:20:17	0
2528652	99	51	40,8	cyclictest	2608664	-21	cron	22:05:00	0
2528654	99	50	42,5	cyclictest	2710500	-21	/usr/sbin/munin	00:00:20	1
2528654	99	50	40,6	cyclictest	0	-21	swapper/1	19:45:34	1
2528652	99	50	42,5	cyclictest	2588245	-21	/usr/sbin/munin	21:40:41	0
2528652	99	50	41,6	cyclictest	2681426	-21	kworker/u4:2+events_unbound	23:28:01	0
2528652	99	50	28,20	cyclictest	0	-21	swapper/0	23:50:22	0
2528652	99	50	28,19	cyclictest	2622656	-21	gltestperf	22:20:21	0
2528654	99	49	43,4	cyclictest	2684220	-21	gltestperf	23:30:20	1
2528654	99	49	42,5	cyclictest	2530914	-21	awk	19:15:36	1
2528654	99	49	41,5	cyclictest	2583099	-21	/usr/sbin/munin	21:35:25	1
2528654	99	49	41,5	cyclictest	2537646	-21	kworker/u4:17+events_unbound	19:42:43	1
2528652	99	49	42,5	cyclictest	2706033	-21	gltestperf	23:55:20	0
2528652	99	49	42,5	cyclictest	2669230	-21	sshd	23:13:19	0
2528652	99	49	41,5	cyclictest	2574509	-21	run-parts	21:25:38	0
2528652	99	49	40,7	cyclictest	2553187	-21	unixbench_multi	20:40:41	0
2528652	99	49	36,7	cyclictest	0	-21	swapper/0	00:25:34	0
2528652	99	49	33,10	cyclictest	2529895	-21	modprobe	19:15:00	0
2528654	99	48	40,5	cyclictest	0	-21	swapper/1	20:50:23	1
2528654	99	48	39,7	cyclictest	2551869	-21	kworker/u4:12+events_unbound	20:37:58	1
2528654	99	48	39,7	cyclictest	2540383	-21	latency_hist	19:55:01	1
2528652	99	48	4,28	cyclictest	2710672	-21	ssh	00:00:26	0
2528652	99	48	40,6	cyclictest	2531667	-21	fschecks_count	19:20:18	0
2528652	99	48	40,5	cyclictest	2635684	-21	/usr/sbin/munin	22:35:20	0
2528652	99	48	37,8	cyclictest	2555129	-21	gltestperf	20:50:18	0
2528652	99	48	35,9	cyclictest	0	-21	swapper/0	22:15:15	0
2528654	99	47	41,4	cyclictest	2671000	-21	cut	23:15:20	1
2528654	99	47	40,5	cyclictest	2744575	-21	ssh	00:40:01	1
2528654	99	47	40,5	cyclictest	2557484	-21	sed	21:00:15	1
2528654	99	47	37,8	cyclictest	2609793	-21	ntp_offset	22:05:31	1
2528654	99	47	37,7	cyclictest	2544538	-21	aten_r7power_vo	20:10:16	1
2528654	99	47	34,11	cyclictest	2596961	-21	unixbench_multi	21:50:40	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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