OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #7, slot #2

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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 Thu Apr 09, 2026 00:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2362410	99	127	24,41	cyclictest	2362409	-21	idleruntime-cro	19:10:01	0
2362411	99	87	75,9	cyclictest	2459057	-21	kworker/u4:1+events_unbound	23:46:55	1
2362411	99	76	68,6	cyclictest	2556325	-21	kworker/u4:9+events_unbound	00:13:16	1
2362410	99	76	39,34	cyclictest	2416787	-21	fschecks_count	21:35:16	0
2362410	99	74	65,7	cyclictest	2385638	-21	kworker/u4:2+events_unbound	21:26:07	0
2362410	99	73	66,5	cyclictest	2538617	-21	kworker/u4:6+events_unbound	23:52:25	0
2362410	99	73	34,36	cyclictest	0	-21	swapper/0	23:35:38	0
2362411	99	72	39,4	cyclictest	0	-21	swapper/1	23:20:29	1
2362410	99	71	38,31	cyclictest	2430229	-21	/usr/sbin/munin	21:50:18	0
2362410	99	71	24,5	cyclictest	2509857	-21	sendmail-msp	23:20:00	0
2362410	99	70	62,6	cyclictest	2441569	-21	kworker/u4:2+events_unbound	22:21:16	0
2362410	99	70	36,5	cyclictest	2403035	-21	aten_r7power_cu	21:20:15	0
2362410	99	70	34,5	cyclictest	2387343	-21	aten_r7power_vo	20:45:21	0
2362410	99	70	34,32	cyclictest	2402620	-21	ssh	21:20:00	0
2362410	99	70	34,32	cyclictest	2402620	-21	ssh	21:20:00	0
2362410	99	70	34,31	cyclictest	2459057	-21	kworker/u4:1-rpciod	23:33:51	0
2362410	99	70	33,9	cyclictest	2378141	-21	aten_r7power_cu	20:10:15	0
2362410	99	70	27,9	cyclictest	0	-21	swapper/0	23:45:27	0
2362410	99	69	35,5	cyclictest	2515155	-21	awk	23:25:22	0
2362410	99	68	59,6	cyclictest	2427866	-21	kworker/u4:8+events_unbound	22:11:14	0
2362410	99	68	37,29	cyclictest	2373123	-21	fschecks_count	19:50:17	0
2362410	99	68	22,18	cyclictest	0	-21	swapper/0	23:44:28	0
2362410	99	68	21,18	cyclictest	2370117	-21	kworker/u4:6+rpciod	19:45:18	0
2362410	99	67	38,27	cyclictest	53	-21	kswapd0	23:00:36	0
2362410	99	67	33,31	cyclictest	0	-21	swapper/0	21:40:18	0
2362411	99	66	57,6	cyclictest	2376624	-21	kworker/u4:4+events_unbound	20:36:02	1
2362410	99	66	34,28	cyclictest	0	-21	swapper/0	21:05:01	0
2362410	99	66	33,30	cyclictest	2371416	-21	kworker/u4:10-rpciod	20:00:19	0
2362410	99	66	30,6	cyclictest	2381043	-21	fschecks_time	20:20:18	0
2362410	99	66	23,14	cyclictest	2558620	-21	fschecks_time	00:15:19	0
2362410	99	65	34,5	cyclictest	2563056	-21	fschecks_time	00:20:25	0
2362410	99	65	34,4	cyclictest	2545409	-21	aten_r7power_vo	00:00:31	0
2362410	99	65	33,4	cyclictest	2374268	-21	cut	19:55:20	0
2362410	99	65	31,5	cyclictest	2435225	-21	ntp_offset	21:55:31	0
2362410	99	65	31,5	cyclictest	2398267	-21	cat	21:15:01	0
2362410	99	65	30,5	cyclictest	1980448	-21	kworker/u4:4-rpciod	19:25:43	0
2362410	99	65	29,7	cyclictest	0	-21	swapper/0	21:30:32	0
2362410	99	65	29,5	cyclictest	0	-21	swapper/0	23:25:02	0
2362410	99	64	31,4	cyclictest	0	-21	swapper/0	21:45:34	0
2362411	99	63	54,7	cyclictest	2538615	-21	kworker/u4:1+events_unbound	23:58:05	1
2362410	99	63	31,5	cyclictest	2459062	-21	kworker/u4:9-xprtiod	22:59:47	0
2362410	99	63	29,6	cyclictest	0	-21	swapper/0	22:35:32	0
2362411	99	62	54,6	cyclictest	2565294	-21	kworker/u4:12+events_unbound	00:23:39	1
2362410	99	62	28,5	cyclictest	0	-21	swapper/0	20:05:36	0
2362411	99	61	53,6	cyclictest	2371416	-21	kworker/u4:10+events_unbound	20:01:01	1
2362410	99	61	28,5	cyclictest	0	-21	swapper/0	00:30:36	0
2362411	99	60	51,7	cyclictest	2379166	-21	kworker/u4:16+events_unbound	20:26:01	1
2362410	99	60	8,19	cyclictest	2393613	-21	diskmemload	22:40:13	0
2362410	99	60	32,5	cyclictest	0	-21	swapper/0	23:10:39	0
2362410	99	60	32,25	cyclictest	0	-21	swapper/0	22:05:38	0
2362411	99	59	52,5	cyclictest	2366336	-21	latency_hist	19:25:01	1
2362411	99	58	50,6	cyclictest	2444394	-21	mailstats	22:05:37	1
2362410	99	58	50,6	cyclictest	2481102	-21	kworker/u4:12+events_unbound	22:51:20	0
2362411	99	57	49,6	cyclictest	1980448	-21	kworker/u4:4+events_unbound	19:25:54	1
2362410	99	57	47,8	cyclictest	315	-21	systemd-journal	00:13:14	0
2362411	99	56	48,6	cyclictest	2470393	-21	/usr/sbin/munin	22:35:17	1
2362411	99	56	48,6	cyclictest	2429736	-21	latency_hist	21:50:02	1
2362411	99	56	45,8	cyclictest	2370104	-21	systemd	19:35:55	1
2362410	99	56	48,6	cyclictest	2459057	-21	kworker/u4:1+events_unbound	23:06:22	0
2362410	99	56	36,18	cyclictest	2439018	-21	aten_r7power_en	22:00:16	0
2362411	99	55	48,5	cyclictest	2545538	-21	/usr/sbin/munin	00:00:32	1
2362411	99	55	48,5	cyclictest	2479750	-21	kernelversion	22:45:27	1
2362411	99	53	44,6	cyclictest	2423292	-21	kworker/u4:1+events_unbound	21:56:12	1
2362411	99	52	44,6	cyclictest	0	-21	swapper/1	23:30:32	1
2362411	99	52	44,5	cyclictest	0	-21	swapper/1	21:25:34	1
2362411	99	51	43,6	cyclictest	2459057	-21	kworker/u4:1+events_unbound	22:26:18	1
2362411	99	50	43,5	cyclictest	2572030	-21	load	00:30:22	1
2362411	99	50	42,6	cyclictest	2576115	-21	/usr/sbin/munin	00:35:19	1
2362411	99	50	41,7	cyclictest	2474679	-21	aten2__	22:40:14	1
2362411	99	50	41,7	cyclictest	2457008	-21	df_abs	22:20:16	1
2362411	99	50	41,7	cyclictest	2386925	-21	systemd	20:41:02	1
2362411	99	50	39,9	cyclictest	315	-21	systemd-journal	21:31:08	1
2362410	99	50	41,6	cyclictest	2567677	-21	/usr/sbin/munin	00:25:23	0
2362410	99	50	41,6	cyclictest	2392763	-21	fschecks_count	21:05:23	0
2362410	99	50	41,6	cyclictest	2392763	-21	fschecks_count	21:05:23	0
2362410	99	50	40,7	cyclictest	2389647	-21	kworker/u4:0+events_unbound	20:55:01	0
2362410	99	50	30,17	cyclictest	0	-21	swapper/0	22:15:22	0
2362411	99	49	43,4	cyclictest	2370912	-21	ldconfig	19:40:24	1
2362411	99	49	41,6	cyclictest	2537523	-21	timerandwakeup	23:50:39	1
2362410	99	49	40,7	cyclictest	2389950	-21	aten_r7power_po	20:55:16	0
2362410	99	49	28,19	cyclictest	2379736	-21	fschecks_time	20:15:23	0
2362411	99	48	42,4	cyclictest	0	-21	swapper/1	19:50:38	1
2362411	99	48	41,5	cyclictest	2498240	-21	/usr/sbin/munin	23:05:40	1
2362411	99	48	41,5	cyclictest	2387509	-21	fschecks_time	20:45:22	1
2362411	99	48	41,5	cyclictest	0	-21	swapper/1	22:10:35	1
2362411	99	48	41,5	cyclictest	0	-21	swapper/1	21:10:32	1
2362411	99	48	40,6	cyclictest	2556325	-21	kworker/u4:9+events_unbound	00:17:01	1
2362411	99	48	40,6	cyclictest	2403239	-21	df	21:20:18	1
2362411	99	48	40,5	cyclictest	0	-21	swapper/1	00:05:13	1
2362411	99	48	39,7	cyclictest	2488200	-21	aten_r7power_po	22:55:23	1
2362411	99	48	39,6	cyclictest	2571123	-21	modprobe	00:30:01	1
2362410	99	48	40,5	cyclictest	2551856	-21	kworker/u4:13+events_unbound	00:40:02	0
2362411	99	47	41,4	cyclictest	2501767	-21	fschecks_count	23:10:25	1
2362411	99	47	40,5	cyclictest	2420676	-21	tr	21:40:01	1
2362411	99	47	39,5	cyclictest	0	-21	swapper/1	23:15:33	1
2362411	99	47	38,6	cyclictest	2361141	-21	kworker/u4:2+events_unbound	19:10:52	1
2362410	99	47	41,4	cyclictest	2379166	-21	kworker/u4:16+events_unbound	20:40:02	0
2362410	99	47	38,6	cyclictest	2462465	-21	unixbench-2d	22:25:40	0
2362411	99	46	40,4	cyclictest	524	-21	in:imuxsock	20:05:28	1
2362411	99	46	39,5	cyclictest	2515625	-21	/usr/sbin/munin	23:25:38	1
2362411	99	46	39,5	cyclictest	2374431	-21	sed	19:55:20	1
2362411	99	46	37,7	cyclictest	2380555	-21	sh	20:20:01	1
2362410	99	46	38,6	cyclictest	2541331	-21	kernelversion	23:55:20	0
2362411	99	45	39,4	cyclictest	2453367	-21	switchtime	22:15:37	1
2362411	99	45	39,4	cyclictest	0	-21	swapper/1	22:00:26	1
2362411	99	45	38,5	cyclictest	2368847	-21	kworker/u4:3+events_unbound	19:35:01	1
2362411	99	45	36,7	cyclictest	2421180	-21	cpu	21:40:16	1
2362411	99	45	35,8	cyclictest	2485300	-21	sd-accept	22:51:20	1
2362410	99	45	37,5	cyclictest	2479137	-21	acpi	22:45:17	0
2362410	99	45	36,6	cyclictest	2361141	-21	kworker/u4:2-xprtiod	19:40:35	0
2362411	99	44	37,5	cyclictest	2493057	-21	irqstats	23:00:23	1
2362411	99	44	34,8	cyclictest	2430530	-21	kernelversion	21:50:22	1
2362410	99	44	36,6	cyclictest	2466396	-21	ld	22:30:27	0
2362410	99	44	35,6	cyclictest	2382872	-21	timerandwakeup	20:25:37	0
2362411	99	43	37,4	cyclictest	2381829	-21	kworker/u4:3+rpciod	21:20:02	1
2362411	99	43	37,4	cyclictest	2381829	-21	kworker/u4:3+rpciod	21:20:01	1
2362411	99	43	36,5	cyclictest	2372723	-21	munin-plugin-st	19:50:00	1
2362411	99	43	36,5	cyclictest	0	-21	swapper/1	23:40:31	1
2362411	99	43	36,4	cyclictest	0	-21	swapper/1	20:31:01	1
2362411	99	43	35,5	cyclictest	0	-21	swapper/1	20:55:24	1
2362411	99	43	34,6	cyclictest	0	-21	swapper/1	22:30:25	1
2362411	99	43	33,8	cyclictest	2523792	-21	if_eth0	23:35:20	1
2362410	99	43	35,6	cyclictest	2365406	-21	fschecks_count	19:20:17	0
2362410	99	43	35,5	cyclictest	2362371	-21	kworker/u4:3-rpciod	19:15:02	0
2362410	99	43	22,18	cyclictest	0	-21	swapper/0	19:19:59	0
2362411	99	42	35,5	cyclictest	2391885	-21	sendmail_mailqu	21:00:34	1
2362411	99	42	33,6	cyclictest	2364929	-21	cron	19:20:00	1
2362411	99	42	33,6	cyclictest	0	-21	swapper/1	20:50:12	1
2362410	99	42	35,5	cyclictest	2367821	-21	aten_r7power_cu	19:30:14	0
2362410	99	41	33,5	cyclictest	0	-21	swapper/0	19:40:00	0
2362410	99	41	32,6	cyclictest	0	-21	swapper/0	20:45:01	0
2362410	99	40	31,6	cyclictest	0	-21	swapper/0	00:05:35	0
2362410	99	40	30,7	cyclictest	0	-21	swapper/0	20:30:15	0
2362411	99	39	33,4	cyclictest	0	-21	swapper/1	20:20:23	1
2362411	99	39	31,6	cyclictest	2393714	-21	latency_hist	21:10:02	1
2362411	99	39	31,6	cyclictest	2393714	-21	latency_hist	21:10:01	1
2362411	99	39	31,5	cyclictest	1066	-21	snmpd	20:10:36	1
2362411	99	34	27,5	cyclictest	2362420	-21	latency_hist	19:10:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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