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 highest latencies:

System rack7slot2.osadl.org (updated Mon Feb 23, 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
2657236	99	105	96,7	cyclictest	2752518	-21	kworker/u4:1+events_unbound	22:22:25	0
2657236	99	104	95,6	cyclictest	2712589	-21	kworker/u4:1+events_unbound	22:12:24	0
2657236	99	101	94,5	cyclictest	2782982	-21	kworker/u4:3+events_unbound	22:57:29	0
2657236	99	101	93,6	cyclictest	2817616	-21	kworker/u4:8+events_unbound	23:37:35	0
2657236	99	101	92,7	cyclictest	2747994	-21	kworker/u4:6+events_unbound	22:27:25	0
2657236	99	101	92,7	cyclictest	2703607	-21	kworker/u4:5+events_unbound	21:27:20	0
2657236	99	101	92,7	cyclictest	2703607	-21	kworker/u4:5+events_unbound	21:27:20	0
2657236	99	100	84,6	cyclictest	2594740	-21	kworker/u4:9+events_unbound	21:07:22	0
2657236	99	98	91,5	cyclictest	2856668	-21	kworker/u4:7+events_unbound	00:23:55	0
2657236	99	97	88,7	cyclictest	2809465	-21	kworker/u4:15+events_unbound	23:27:34	0
2657236	99	96	90,4	cyclictest	2721626	-21	kworker/u4:9+events_unbound	21:47:24	0
2657236	99	93	83,8	cyclictest	2787427	-21	kworker/u4:1+events_unbound	23:02:30	0
2657236	99	90	83,5	cyclictest	2774149	-21	kworker/u4:3+events_unbound	22:47:27	0
2657236	99	85	78,5	cyclictest	2661083	-21	kworker/u4:3+events_unbound	20:52:21	0
2657236	99	84	77,5	cyclictest	2869664	-21	kworker/u4:3+events_unbound	00:38:42	0
2657236	99	81	74,5	cyclictest	2835212	-21	kworker/u4:7+events_unbound	00:08:27	0
2657236	99	81	73,6	cyclictest	2800632	-21	kworker/u4:10+events_unbound	23:17:32	0
2657236	99	80	74,4	cyclictest	2664847	-21	kworker/u4:2+events_unbound	20:47:20	0
2657236	99	78	71,5	cyclictest	2765273	-21	kworker/u4:9+events_unbound	22:37:28	0
2657236	99	77	70,5	cyclictest	2717150	-21	kworker/u4:2+events_unbound	22:02:24	0
2657236	99	75	70,4	cyclictest	2686573	-21	kworker/u4:1+events_unbound	21:12:20	0
2657236	99	75	69,4	cyclictest	2826428	-21	kworker/u4:17+events_unbound	23:50:00	0
2657236	99	75	68,5	cyclictest	2661084	-21	kworker/u4:6+events_unbound	19:27:11	0
2657237	99	74	62,9	cyclictest	54	-21	kswapd0	22:40:13	1
2657236	99	71	65,4	cyclictest	2752519	-21	kworker/u4:4+events_unbound	22:45:00	0
2657236	99	71	60,5	cyclictest	2661084	-21	kworker/u4:6+events_unbound	19:25:01	0
2657236	99	70	63,5	cyclictest	2717150	-21	kworker/u4:2+events_unbound	21:52:24	0
2657236	99	70	62,6	cyclictest	2860995	-21	kworker/u4:2+events_unbound	00:28:46	0
2657236	99	70	62,6	cyclictest	2800630	-21	kworker/u4:5+events_unbound	23:42:35	0
2657236	99	69	56,5	cyclictest	2830832	-21	kworker/u4:5+events_unbound	23:53:01	0
2657237	99	68	54,8	cyclictest	2738994	-21	kworker/u4:8-rpciod	22:08:36	1
2657237	99	68	44,19	cyclictest	0	-21	swapper/1	23:40:12	1
2657236	99	66	58,5	cyclictest	2839633	-21	kworker/u4:10+events_unbound	00:03:27	0
2657236	99	64	53,9	cyclictest	2712588	-21	kworker/u4:0+events_unbound	21:37:22	0
2657236	99	63	44,6	cyclictest	2720973	-21	kworker/u4:5+events_unbound	22:19:58	0
2657237	99	61	51,7	cyclictest	2749938	-21	modprobe	22:19:59	1
2657237	99	61	47,9	cyclictest	2743496	-21	kworker/u4:2-rpciod	22:21:07	1
2657236	99	61	54,5	cyclictest	2800632	-21	kworker/u4:10+events_unbound	23:22:34	0
2657236	99	61	54,5	cyclictest	2747994	-21	kworker/u4:6+events_unbound	22:31:09	0
2657236	99	60	52,6	cyclictest	2796241	-21	kworker/u4:8+events_unbound	23:13:43	0
2657237	99	59	49,7	cyclictest	2868334	-21	ld	00:35:36	1
2657236	99	59	52,5	cyclictest	2666127	-21	kworker/u4:4+events_unbound	20:07:14	0
2657237	99	58	43,8	cyclictest	0	-21	swapper/1	00:05:32	1
2657236	99	58	51,5	cyclictest	2658452	-21	kworker/u4:14+events_unbound	19:32:15	0
2657236	99	58	47,5	cyclictest	2594740	-21	kworker/u4:9+events_unbound	19:37:12	0
2657237	99	57	5,43	cyclictest	2776528	-21	ssh	22:50:10	1
2657237	99	57	5,43	cyclictest	2776528	-21	ssh	22:50:10	1
2657236	99	57	39,6	cyclictest	2717150	-21	kworker/u4:2+events_unbound	21:59:58	0
2657236	99	56	49,5	cyclictest	2712589	-21	kworker/u4:1+events_unbound	21:44:59	0
2657236	99	55	48,5	cyclictest	2782985	-21	kworker/u4:6+events_unbound	23:07:00	0
2657236	99	55	36,16	cyclictest	2854359	-21	gpgv	00:20:01	0
2657237	99	54	44,7	cyclictest	2800630	-21	kworker/u4:5-rpciod	23:45:14	1
2657237	99	54	43,7	cyclictest	2673391	-21	ps	20:10:35	1
2657236	99	54	36,6	cyclictest	2661083	-21	kworker/u4:3+events_unbound	21:25:00	0
2657237	99	53	44,6	cyclictest	2811550	-21	df_abs	23:30:17	1
2657237	99	53	41,6	cyclictest	0	-21	swapper/1	23:50:27	1
2657236	99	53	40,10	cyclictest	2676130	-21	timerwakeupswit	20:20:35	0
2657236	99	53	2,42	cyclictest	2658479	-21	apt-get	19:15:09	0
2657236	99	53	18,26	cyclictest	2776531	-21	rm	22:50:11	0
2657236	99	53	18,26	cyclictest	2776531	-21	rm	22:50:11	0
2657237	99	52	33,13	cyclictest	0	-21	swapper/1	23:55:30	1
2657237	99	52	33,13	cyclictest	0	-21	swapper/1	23:55:29	1
2657236	99	52	46,4	cyclictest	2672516	-21	kworker/u4:10+events_unbound	21:02:20	0
2657237	99	51	43,5	cyclictest	2657233	-21	cyclictest	22:47:27	1
2657237	99	51	41,7	cyclictest	0	-21	swapper/1	22:55:13	1
2657237	99	51	19,8	cyclictest	0	-21	swapper/1	23:11:12	1
2657236	99	51	44,5	cyclictest	2661083	-21	kworker/u4:3+events_unbound	19:52:13	0
2657237	99	50	41,6	cyclictest	2657233	-21	cyclictest	21:47:45	1
2657236	99	50	43,4	cyclictest	0	-21	swapper/0	23:55:10	0
2657236	99	50	43,4	cyclictest	0	-21	swapper/0	23:55:10	0
2657236	99	50	1,42	cyclictest	2678853	-21	apt-get	20:35:09	0
2657237	99	49	42,5	cyclictest	2724450	-21	ldconfig	21:50:30	1
2657237	99	49	42,5	cyclictest	2706375	-21	gltestperf	21:30:21	1
2657237	99	49	41,6	cyclictest	2716032	-21	unixbench-2d	21:40:38	1
2657237	99	49	37,10	cyclictest	2710670	-21	fschecks_count	21:35:19	1
2657237	99	49	34,12	cyclictest	2799307	-21	switchtime	23:15:37	1
2657237	99	49	17,9	cyclictest	0	-21	swapper/1	22:30:21	1
2657236	99	49	36,10	cyclictest	2737941	-21	/usr/sbin/munin	22:05:36	0
2657236	99	49	30,16	cyclictest	2706193	-21	df_abs	21:30:19	0
2657237	99	48	7,15	cyclictest	2857289	-21	ssh	00:22:52	1
2657237	99	48	41,5	cyclictest	2663361	-21	awk	19:30:36	1
2657237	99	48	40,6	cyclictest	2806672	-21	munin-plugin-st	23:25:00	1
2657237	99	48	40,6	cyclictest	2789867	-21	/usr/sbin/munin	23:05:18	1
2657237	99	48	40,6	cyclictest	2674447	-21	kernelversion	20:15:22	1
2657237	99	48	38,7	cyclictest	2702070	-21	/usr/sbin/munin	21:25:22	1
2657237	99	48	38,7	cyclictest	2702070	-21	/usr/sbin/munin	21:25:21	1
2657237	99	48	34,10	cyclictest	2676331	-21	kworker/u4:3	20:24:59	1
2657236	99	48	33,5	cyclictest	2861000	-21	kworker/u4:9+events_unbound	00:32:00	0
2657237	99	47	8,13	cyclictest	2817026	-21	ssh	23:35:49	1
2657237	99	47	8,13	cyclictest	2696985	-21	ssh	21:20:07	1
2657237	99	47	40,5	cyclictest	2859956	-21	mailstats	00:25:39	1
2657237	99	47	40,5	cyclictest	2850500	-21	df_abs	00:15:17	1
2657237	99	47	38,6	cyclictest	2755528	-21	ntpq	22:25:35	1
2657237	99	47	38,6	cyclictest	0	-21	swapper/1	00:00:26	1
2657237	99	47	38,5	cyclictest	2782982	-21	kworker/u4:3-rpciod	23:05:01	1
2657237	99	47	37,7	cyclictest	2666348	-21	latency_hist	19:45:02	1
2657237	99	47	10,11	cyclictest	2690439	-21	ssh	21:12:10	1
2657236	99	47	42,3	cyclictest	2654761	-21	kworker/u4:0+events_unbound	20:00:04	0
2657236	99	47	40,5	cyclictest	2813785	-21	ssh	23:32:33	0
2657236	99	47	38,6	cyclictest	2670058	-21	latency_hist	20:00:01	0
2657236	99	47	37,8	cyclictest	2846293	-21	fschecks_time	00:10:22	0
2657236	99	47	37,8	cyclictest	2665332	-21	fschecks_count	19:40:18	0
2657236	99	47	28,16	cyclictest	0	-21	swapper/0	21:15:28	0
2657237	99	46	9,11	cyclictest	2693403	-21	ntpq	21:15:31	1
2657237	99	46	8,14	cyclictest	2848049	-21	ssh	00:11:59	1
2657237	99	46	8,10	cyclictest	2867024	-21	ssh	00:34:44	1
2657237	99	46	7,15	cyclictest	2806866	-21	ssh	23:25:05	1
2657237	99	46	7,14	cyclictest	2668240	-21	ntpq	19:50:28	1
2657237	99	46	38,5	cyclictest	2664197	-21	tail	19:35:20	1
2657237	99	46	16,7	cyclictest	2730661	-21	kworker/u4:9-rpciod	22:00:02	1
2657236	99	46	40,4	cyclictest	2594740	-21	kworker/u4:9+events_unbound	20:40:03	0
2657237	99	45	7,13	cyclictest	2744756	-21	ssh	22:13:52	1
2657237	99	45	36,6	cyclictest	2680815	-21	gltestperf	20:40:21	1
2657237	99	45	35,7	cyclictest	0	-21	swapper/1	22:35:20	1
2657236	99	45	37,6	cyclictest	2672994	-21	fschecks_count	20:10:20	0
2657237	99	44	37,5	cyclictest	2669645	-21	sendmail_mailqu	19:55:35	1
2657237	99	44	10,7	cyclictest	2682233	-21	ntpq	20:45:28	1
2657236	99	44	37,5	cyclictest	2661084	-21	kworker/u4:6+events_unbound	20:27:17	0
2657236	99	44	24,6	cyclictest	2676316	-21	kworker/u4:4+events_unbound	20:59:28	0
2657237	99	43	5,12	cyclictest	2667045	-21	ntpq	19:45:35	1
2657237	99	43	34,7	cyclictest	2658921	-21	df_abs	19:15:24	1
2657237	99	43	29,8	cyclictest	2708073	-21	kworker/u4:6-rpciod	22:00:15	1
2657237	99	43	28,11	cyclictest	2671041	-21	ls	20:00:37	1
2657236	99	43	36,5	cyclictest	2674224	-21	fschecks_count	20:15:20	0
2657237	99	42	33,7	cyclictest	2679416	-21	fschecks_time	20:35:23	1
2657237	99	42	33,6	cyclictest	2687050	-21	fschecks_count	21:05:18	1
2657237	99	41	33,6	cyclictest	2678133	-21	gltestperf	20:30:19	1
2657237	99	41	31,7	cyclictest	0	-21	swapper/1	19:30:01	1
2657237	99	41	26,10	cyclictest	2677701	-21	sort	20:30:01	1
2657236	99	41	33,6	cyclictest	2678622	-21	timerandwakeup	20:30:35	0
2657236	99	41	21,6	cyclictest	2667502	-21	munin-plugin-st	19:50:00	0
2657237	99	40	34,4	cyclictest	2684592	-21	gltestperf	20:55:21	1
2657237	99	40	33,5	cyclictest	2686042	-21	nfs_client	21:00:23	1
2657237	99	40	32,6	cyclictest	2671711	-21	fschecks_count	20:05:23	1
2657237	99	40	31,7	cyclictest	2683502	-21	netstat	20:50:28	1
2657236	99	40	23,7	cyclictest	2647359	-21	kworker/u4:12+events_unbound	19:10:20	0
2657237	99	38	28,8	cyclictest	0	-21	swapper/1	19:10:18	1
2657237	99	37	19,16	cyclictest	27	1	ktimers/1	19:20:22	1
2657236	99	33	17,5	cyclictest	2657245	-21	latency_hist	19:10:01	0
2657237	99	29	19,7	cyclictest	2657346	-21	latency_hist	19:10:02	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