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 100 highest latencies:

System rack7slot2.osadl.org (updated Mon Sep 07, 2026 00:44:07)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2437692	99	107	100,5	cyclictest	2635497	-21	kworker/u4:3+events_unbound	00:18:35	1
2437691	99	99	52,42	cyclictest	53	-21	kswapd0	23:25:10	0
2437691	99	95	69,21	cyclictest	53	-21	kswapd0	22:40:12	0
2437691	99	93	66,23	cyclictest	53	-21	kswapd0	23:50:07	0
2437692	99	88	74,6	cyclictest	2421214	-21	kworker/u4:5+events_unbound	19:42:18	1
2437691	99	85	32,50	cyclictest	2513448	-21	aten_r7power_po	22:00:15	0
2437692	99	84	77,5	cyclictest	2465828	-21	kworker/u4:8+events_unbound	21:07:37	1
2437692	99	84	77,5	cyclictest	2453060	-21	kworker/u4:21+events_unbound	20:07:22	1
2437692	99	83	70,5	cyclictest	2441493	-21	kworker/u4:11+events_unbound	19:22:08	1
2437691	99	83	47,28	cyclictest	2637988	-21	ssh	00:20:20	0
2437692	99	81	74,5	cyclictest	2460719	-21	kworker/u4:6+events_unbound	20:42:30	1
2437692	99	81	73,6	cyclictest	2426564	-21	kworker/u4:8+events_unbound	19:32:14	1
2437691	99	81	52,27	cyclictest	2437689	-21	cyclictest	21:30:17	0
2437692	99	80	73,5	cyclictest	2442763	-21	kworker/u4:13+events_unbound	19:27:10	1
2437692	99	78	71,5	cyclictest	2460719	-21	kworker/u4:6+events_unbound	21:02:34	1
2437691	99	75	51,21	cyclictest	53	-21	kswapd0	23:35:10	0
2437691	99	71	64,5	cyclictest	2620929	-21	sh	00:00:40	0
2437691	99	70	61,7	cyclictest	2442763	-21	kworker/u4:13+events_unbound	19:47:19	0
2437692	99	69	62,5	cyclictest	2438913	-21	kworker/u4:2+events_unbound	19:17:10	1
2437691	99	68	8,54	cyclictest	2607436	-21	ssh	23:45:32	0
2437692	99	67	53,6	cyclictest	2453058	-21	kworker/u4:19+events_unbound	20:17:26	1
2437692	99	64	57,5	cyclictest	2465823	-21	kworker/u4:3+events_unbound	21:12:35	1
2437692	99	64	56,6	cyclictest	2460718	-21	kworker/u4:5+events_unbound	20:37:28	1
2437692	99	64	56,6	cyclictest	2460718	-21	kworker/u4:5+events_unbound	20:37:28	1
2437691	99	62	54,6	cyclictest	2630994	-21	kworker/u4:11+events_unbound	00:13:32	0
2437691	99	62	52,8	cyclictest	2471416	-21	systemd	21:12:35	0
2437691	99	61	39,16	cyclictest	2605292	-21	ssh	23:43:23	0
2437692	99	60	50,7	cyclictest	0	-21	swapper/1	23:35:19	1
2437692	99	58	51,5	cyclictest	2462018	-21	kworker/u4:13+events_unbound	20:55:02	1
2437692	99	57	49,5	cyclictest	2468519	-21	diskmemload	23:45:28	1
2437691	99	57	50,5	cyclictest	2642118	-21	aten_r7power_cu	00:25:16	0
2437691	99	57	43,10	cyclictest	37	-21	kcompactd0	22:25:19	0
2437692	99	56	45,9	cyclictest	2555691	-21	kworker/u4:7+events_unbound	22:47:54	1
2437691	99	56	33,20	cyclictest	2562556	-21	fschecks_count	22:55:19	0
2437692	99	55	40,6	cyclictest	2639997	-21	kworker/u4:7+events_unbound	00:26:45	1
2437691	99	55	43,9	cyclictest	2651205	-21	ssh	00:35:21	0
2437692	99	54	46,6	cyclictest	0	-21	swapper/1	21:25:12	1
2437692	99	54	39,6	cyclictest	2533119	-21	kworker/u4:12+events_unbound	22:29:45	1
2437691	99	54	45,6	cyclictest	2438913	-21	kworker/u4:2+events_unbound	19:12:09	0
2437692	99	53	46,5	cyclictest	2442764	-21	kworker/u4:14+events_unbound	20:30:03	1
2437692	99	53	46,4	cyclictest	27	1	ktimers/1	21:51:58	1
2437692	99	53	42,7	cyclictest	37	-21	kcompactd0	22:02:11	1
2437691	99	53	46,5	cyclictest	2577649	-21	kworker/u4:11+events_unbound	23:18:01	0
2437691	99	53	32,18	cyclictest	2499831	-21	latency_hist	21:45:01	0
2437692	99	52	39,5	cyclictest	2463287	-21	kworker/u4:14+events_unbound	20:50:02	1
2437692	99	52	38,9	cyclictest	2580051	-21	apt-get	23:15:14	1
2437691	99	52	45,5	cyclictest	2464596	-21	cut	20:55:00	0
2437691	99	52	43,6	cyclictest	2527551	-21	/usr/sbin/munin	22:15:36	0
2437691	99	52	41,7	cyclictest	0	-21	swapper/0	23:09:43	0
2437692	99	51	44,5	cyclictest	2425109	-21	kworker/u4:11+events_unbound	19:10:03	1
2437692	99	51	4,23	cyclictest	2571881	-21	ssh	23:05:28	1
2437691	99	51	43,5	cyclictest	2628460	-21	cron	00:10:00	0
2437691	99	51	39,8	cyclictest	2532749	-21	ssh	22:21:07	0
2437692	99	50	43,5	cyclictest	2524050	-21	kworker/u4:4+events_unbound	22:19:45	1
2437692	99	50	43,5	cyclictest	2446594	-21	kworker/u4:2+events_unbound	19:45:45	1
2437692	99	50	38,9	cyclictest	2600162	-21	kworker/u4:12-rpciod	23:55:40	1
2437692	99	50	38,5	cyclictest	2613683	-21	kworker/u4:9+events_unbound	23:53:46	1
2437691	99	50	42,6	cyclictest	2441494	-21	kworker/u4:12+events_unbound	19:37:17	0
2437692	99	49	42,4	cyclictest	2593681	-21	fschecks_count	23:30:20	1
2437692	99	49	41,6	cyclictest	27	1	ktimers/1	22:31:50	1
2437691	99	49	35,5	cyclictest	2462018	-21	kworker/u4:13+events_unbound	20:55:45	0
2437692	99	48	42,5	cyclictest	2591139	-21	kworker/u4:3+events_unbound	23:30:02	1
2437692	99	48	42,4	cyclictest	2562026	-21	latency_hist	22:55:02	1
2437692	99	48	41,4	cyclictest	2620815	-21	/usr/sbin/munin	00:00:36	1
2437692	99	48	40,6	cyclictest	2546655	-21	kworker/u4:8+events_unbound	22:57:58	1
2437692	99	48	40,6	cyclictest	2442763	-21	kworker/u4:13+events_unbound	19:50:03	1
2437692	99	48	39,7	cyclictest	2569273	-21	kworker/u4:5+events_unbound	23:05:00	1
2437692	99	48	39,6	cyclictest	2490937	-21	idleruntime-cro	21:35:00	1
2437692	99	48	3,24	cyclictest	2474400	-21	ssh	21:15:51	1
2437691	99	48	41,5	cyclictest	531	-21	in:imuxsock	21:47:42	0
2437691	99	48	40,6	cyclictest	2488700	-21	kworker/u4:2+events_unbound	21:36:46	0
2437691	99	48	40,5	cyclictest	2575989	-21	fschecks_count	23:10:21	0
2437691	99	48	3,23	cyclictest	2518410	-21	ssh	22:05:25	0
2437691	99	48	26,6	cyclictest	2647584	-21	timerandwakeup	00:30:40	0
2437692	99	47	40,5	cyclictest	2629116	-21	fschecks_count	00:10:21	1
2437692	99	47	40,5	cyclictest	2576415	-21	ntp_kernel_pll_	23:10:31	1
2437692	99	47	36,9	cyclictest	2504165	-21	sh	21:50:00	1
2437692	99	47	36,7	cyclictest	0	-21	swapper/1	00:35:28	1
2437692	99	47	34,10	cyclictest	0	-21	swapper/1	22:05:31	1
2437692	99	46	38,5	cyclictest	2638013	-21	fschecks_count	00:20:20	1
2437692	99	46	38,5	cyclictest	2437689	-21	cyclictest	19:37:16	1
2437692	99	46	35,8	cyclictest	37	-21	kcompactd0	23:41:12	1
2437692	99	46	20,17	cyclictest	2511201	-21	sh	21:57:13	1
2437691	99	46	7,36	cyclictest	2633399	-21	cpu	00:15:17	0
2437691	99	46	40,4	cyclictest	2483450	-21	switchtime	21:25:41	0
2437691	99	46	38,5	cyclictest	2615958	-21	gltestperf	23:55:23	0
2437691	99	46	36,7	cyclictest	2461261	-21	fschecks_time	20:40:19	0
2437692	99	45	38,5	cyclictest	2496751	-21	switchtime	21:40:40	1
2437692	99	45	36,6	cyclictest	27	1	ktimers/1	00:06:53	1
2437692	99	45	35,7	cyclictest	0	-21	swapper/1	21:35:34	1
2437691	99	45	39,4	cyclictest	2597497	-21	gpgv	23:35:02	0
2437691	99	45	39,4	cyclictest	2562102	-21	latency_hist	22:55:02	0
2437691	99	45	38,5	cyclictest	2544849	-21	fschecks_time	22:35:20	0
2437691	99	45	38,5	cyclictest	2478805	-21	proc_pri	21:20:36	0
2437691	99	45	38,5	cyclictest	2437689	-21	cyclictest	22:46:13	0
2437691	99	45	38,5	cyclictest	2426564	-21	kworker/u4:8+events_unbound	20:22:27	0
2437691	99	45	34,9	cyclictest	2504613	-21	aten_r7power_en	21:50:19	0
2437691	99	45	34,8	cyclictest	2440504	-21	aten_r7power_en	19:20:15	0
2437692	99	44	38,4	cyclictest	2458178	-21	systemd	20:27:25	1
2437692	99	44	37,5	cyclictest	2577650	-21	kworker/u4:12-nfsiod	23:25:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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