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 376 highest latencies:

System rack7slot2.osadl.org (updated Fri Jul 24, 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
2053161	99	101	81,7	cyclictest	2040552	-21	kworker/u4:10+events_unbound	07:44:22	0
2053161	99	99	91,6	cyclictest	2241166	-21	kworker/u4:5+events_unbound	12:10:17	0
2053161	99	93	84,7	cyclictest	2130848	-21	kworker/u4:1+events_unbound	10:14:51	0
2053161	99	93	84,6	cyclictest	2258491	-21	kworker/u4:7+events_unbound	12:35:28	0
2053161	99	93	84,6	cyclictest	2117501	-21	kworker/u4:9+events_unbound	09:49:44	0
2053161	99	92	83,6	cyclictest	2091237	-21	kworker/u4:0+events_unbound	09:29:42	0
2053161	99	92	82,7	cyclictest	2205947	-21	kworker/u4:4+events_unbound	11:30:08	0
2053162	99	90	84,4	cyclictest	2152671	-21	kworker/u4:14+events_unbound	10:29:54	1
2053161	99	85	77,5	cyclictest	2178994	-21	kworker/u4:12+events_unbound	11:10:03	0
2053161	99	81	75,4	cyclictest	2062066	-21	kworker/u4:11+events_unbound	08:54:36	0
2053161	99	75	59,5	cyclictest	2117501	-21	kworker/u4:9+events_unbound	09:59:48	0
2053162	99	70	62,6	cyclictest	2187969	-21	kworker/u4:10+events_unbound	11:40:10	1
2053162	99	69	62,5	cyclictest	2192454	-21	kworker/u4:1+events_unbound	11:45:10	1
2053162	99	68	58,7	cyclictest	2201459	-21	kworker/u4:11+events_unbound	12:30:25	1
2053161	99	68	39,7	cyclictest	2073556	-21	kworker/u4:1+events_unbound	09:35:01	0
2053162	99	67	60,5	cyclictest	2130848	-21	kworker/u4:1+events_unbound	10:19:54	1
2053161	99	67	58,7	cyclictest	2192456	-21	kworker/u4:3+events_unbound	11:20:05	0
2053162	99	66	57,7	cyclictest	2099564	-21	kworker/u4:6+events_unbound	09:44:43	1
2053162	99	66	49,6	cyclictest	2121946	-21	kworker/u4:3+events_unbound	10:24:55	1
2053162	99	66	49,6	cyclictest	2121946	-21	kworker/u4:3+events_unbound	10:24:55	1
2053161	99	66	58,6	cyclictest	2121948	-21	kworker/u4:10+events_unbound	10:09:50	0
2053162	99	64	57,5	cyclictest	2192455	-21	kworker/u4:2+events_unbound	11:25:06	1
2053161	99	64	55,7	cyclictest	53	-21	kswapd0	11:00:01	0
2053161	99	64	55,5	cyclictest	2135351	-21	kworker/u4:2+xprtiod	10:30:14	0
2053162	99	63	51,4	cyclictest	2249494	-21	kworker/u4:0+events_unbound	12:20:24	1
2053161	99	63	48,10	cyclictest	256	50	irq/23-42890000.ethernet	09:50:32	0
2053161	99	63	40,5	cyclictest	2249494	-21	kworker/u4:0+events_unbound	12:20:22	0
2053161	99	61	44,10	cyclictest	2220808	-21	modprobe	11:45:00	0
2053161	99	61	36,22	cyclictest	2088368	-21	ssh	09:15:00	0
2053162	99	59	51,6	cyclictest	2062066	-21	kworker/u4:11+events_unbound	08:04:24	1
2053162	99	59	50,6	cyclictest	2053091	-21	kworker/u4:12+events_unbound	07:59:24	1
2053161	99	59	37,8	cyclictest	2071453	-21	fschecks_count	08:20:17	0
2053162	99	58	50,6	cyclictest	2053092	-21	kworker/u4:13+events_unbound	07:34:19	1
2053162	99	58	49,7	cyclictest	2192455	-21	kworker/u4:2+events_unbound	11:15:04	1
2053162	99	58	49,7	cyclictest	2192455	-21	kworker/u4:2+events_unbound	11:15:04	1
2053162	99	58	49,6	cyclictest	2073556	-21	kworker/u4:1+events_unbound	08:34:30	1
2053161	99	58	32,22	cyclictest	2213420	-21	ls	11:35:40	0
2053162	99	57	48,6	cyclictest	2053088	-21	kworker/u4:7+events_unbound	08:14:24	1
2053161	99	57	51,4	cyclictest	2254646	-21	kworker/u4:5+events_unbound	12:25:22	0
2053161	99	57	47,6	cyclictest	19	1	rcuc/0	09:40:11	0
2053161	99	57	43,11	cyclictest	256	50	irq/23-42890000.ethernet	09:35:09	0
2053161	99	56	49,5	cyclictest	2166157	-21	kworker/u4:0+events_unbound	10:44:58	0
2053161	99	56	48,6	cyclictest	2182444	-21	ssh	11:00:38	0
2053161	99	56	48,6	cyclictest	2073556	-21	kworker/u4:1+events_unbound	08:29:29	0
2053161	99	56	48,6	cyclictest	2073556	-21	kworker/u4:1+events_unbound	08:29:29	0
2053161	99	56	2,18	cyclictest	2142480	-21	ssh	10:15:33	0
2053162	99	55	48,5	cyclictest	2248313	-21	sed	12:15:25	1
2053161	99	55	6,46	cyclictest	0	-21	swapper/0	12:00:38	0
2053161	99	55	45,7	cyclictest	53	-21	kswapd0	12:20:01	0
2053161	99	55	35,17	cyclictest	2063562	-21	aten2__	07:50:17	0
2053162	99	54	47,5	cyclictest	2062818	-21	awk	07:45:27	1
2053162	99	54	46,6	cyclictest	2161633	-21	kworker/u4:2+events_unbound	10:39:57	1
2053161	99	54	47,5	cyclictest	2121946	-21	kworker/u4:3+events_unbound	10:20:16	0
2053161	99	54	47,5	cyclictest	2121946	-21	kworker/u4:3+events_unbound	10:20:16	0
2053161	99	54	43,8	cyclictest	2129597	-21	unixbench-2d	10:00:44	0
2053161	99	54	42,7	cyclictest	0	-21	swapper/0	11:45:14	0
2053161	99	53	6,44	cyclictest	0	-21	swapper/0	12:30:29	0
2053161	99	53	46,5	cyclictest	2187126	-21	/usr/sbin/munin	11:05:40	0
2053161	99	53	45,6	cyclictest	2201456	-21	kworker/u4:6+events_unbound	11:26:45	0
2053161	99	53	41,6	cyclictest	0	-21	swapper/0	09:15:07	0
2053162	99	52	39,10	cyclictest	0	-21	swapper/1	12:00:32	1
2053161	99	52	29,21	cyclictest	2083048	-21	fschecks_count	09:05:18	0
2053162	99	51	43,5	cyclictest	1060	-21	sshd	09:54:45	1
2053162	99	51	41,6	cyclictest	2088696	-21	ssh	09:15:09	1
2053161	99	51	44,5	cyclictest	2218751	-21	kworker/u4:4+events_unbound	11:59:45	0
2053161	99	51	40,7	cyclictest	0	-21	swapper/0	10:51:51	0
2053161	99	51	35,11	cyclictest	0	-21	swapper/0	12:05:39	0
2053161	99	51	26,23	cyclictest	2226703	-21	timerandwakeup	11:50:39	0
2053162	99	50	43,5	cyclictest	2186964	-21	timerwakeupswit	11:05:38	1
2053162	99	50	43,5	cyclictest	2117499	-21	kworker/u4:7+events_unbound	10:04:47	1
2053162	99	50	42,6	cyclictest	2139193	-21	ssh	10:11:42	1
2053162	99	50	40,6	cyclictest	2097238	-21	idleruntime-cro	09:25:00	1
2053161	99	50	41,7	cyclictest	2169165	-21	cat	10:45:39	0
2053161	99	50	39,7	cyclictest	2055703	-21	sh	07:20:01	0
2053161	99	50	24,23	cyclictest	2058142	-21	tail	07:25:39	0
2053162	99	49	42,4	cyclictest	2170601	-21	sshd	10:47:27	1
2053162	99	49	41,6	cyclictest	2101957	-21	acpi	09:30:12	1
2053161	99	49	42,5	cyclictest	2059498	-21	kworker/u4:1+events_unbound	07:39:20	0
2053161	99	49	40,6	cyclictest	2094018	-21	ssh	09:20:36	0
2053161	99	49	30,16	cyclictest	2161632	-21	kworker/u4:1-rpciod	10:40:00	0
2053162	99	48	42,4	cyclictest	2064610	-21	systemd	07:54:21	1
2053162	99	48	41,5	cyclictest	2243803	-21	kernelversion	12:10:24	1
2053162	99	48	41,5	cyclictest	2136948	-21	latency_hist	10:10:01	1
2053162	99	48	39,7	cyclictest	2185503	-21	ssh	11:05:00	1
2053161	99	48	40,6	cyclictest	2121946	-21	kworker/u4:3+events_unbound	10:25:14	0
2053161	99	48	24,21	cyclictest	0	-21	swapper/0	08:00:39	0
2053162	99	47	40,5	cyclictest	2239176	-21	fschecks_count	12:05:21	1
2053162	99	47	40,5	cyclictest	2084870	-21	diskmemload	09:10:25	1
2053162	99	47	39,6	cyclictest	2079102	-21	fschecks_count	08:50:18	1
2053162	99	47	39,6	cyclictest	2053089	-21	kworker/u4:9+events_unbound	07:24:18	1
2053161	99	47	39,6	cyclictest	2076098	-21	kworker/u4:8+events_unbound	09:04:39	0
2053161	99	47	37,7	cyclictest	2077647	-21	aten_r7power_cu	08:45:14	0
2053161	99	47	33,9	cyclictest	2059497	-21	kworker/u4:0-rpciod	07:45:40	0
2053162	99	46	39,5	cyclictest	2124847	-21	ld	09:55:39	1
2053162	99	46	39,5	cyclictest	2115664	-21	gltestperf	09:45:21	1
2053162	99	46	39,5	cyclictest	2098070	-21	irqstats	09:25:22	1
2053162	99	46	39,5	cyclictest	1069	-21	lldpd	11:35:31	1
2053162	99	46	37,7	cyclictest	2083863	-21	systemd	09:09:38	1
2053162	99	46	37,6	cyclictest	2155385	-21	gltestperf	10:30:27	1
2053162	99	46	13,9	cyclictest	17	1	rcu_preempt	11:20:19	1
2053162	99	46	1,32	cyclictest	2226364	-21	ssh	11:50:32	1
2053161	99	46	39,5	cyclictest	2194704	-21	aten_r7power_cu	11:15:16	0
2053161	99	46	39,5	cyclictest	2194704	-21	aten_r7power_cu	11:15:16	0
2053162	99	45	38,5	cyclictest	2257644	-21	timerwakeupswit	12:25:40	1
2053162	99	45	38,5	cyclictest	2234137	-21	sed	12:00:01	1
2053162	99	45	38,5	cyclictest	2167766	-21	ssh	10:44:57	1
2053162	99	45	38,5	cyclictest	2082429	-21	timerwakeupswit	09:00:39	1
2053162	99	45	38,5	cyclictest	2071607	-21	gltestperf	08:20:20	1
2053161	99	45	4,16	cyclictest	0	-21	swapper/0	08:55:11	0
2053161	99	45	37,6	cyclictest	1069	-21	lldpd	08:34:23	0
2053162	99	44	37,5	cyclictest	2053160	-21	cyclictest	09:35:44	1
2053162	99	44	35,7	cyclictest	2054689	-21	aten_r7power_po	07:15:18	1
2053161	99	44	35,7	cyclictest	2068904	-21	fschecks_count	08:10:20	0
2053162	99	43	35,6	cyclictest	2265588	-21	df_abs	12:35:22	1
2053162	99	43	34,6	cyclictest	0	-21	swapper/1	11:30:30	1
2053161	99	43	35,6	cyclictest	2070100	-21	df_abs	08:15:17	0
2053161	99	43	33,6	cyclictest	0	-21	swapper/0	08:40:41	0
2053161	99	43	29,10	cyclictest	2068574	-21	ls	08:10:01	0
2053161	99	43	29,10	cyclictest	2068574	-21	ls	08:10:00	0
2053162	99	42	35,5	cyclictest	2177535	-21	uname	10:55:23	1
2053162	99	42	34,5	cyclictest	2053092	-21	kworker/u4:13+rpciod	07:35:17	1
2053162	99	42	33,7	cyclictest	2148204	-21	kworker/u4:13-nfsiod	10:50:37	1
2053162	99	42	16,20	cyclictest	0	-21	swapper/1	11:10:33	1
2053161	99	42	34,6	cyclictest	0	-21	swapper/0	08:35:20	0
2053162	99	41	33,5	cyclictest	2055663	-21	kworker/u4:16+rpciod	07:25:16	1
2053162	99	41	32,7	cyclictest	2053090	-21	kworker/u4:11+rpciod	07:10:16	1
2053162	99	41	32,6	cyclictest	2081131	-21	timerwakeupswit	08:55:43	1
2053162	99	41	32,6	cyclictest	0	-21	swapper/1	07:10:01	1
2053162	99	40	33,5	cyclictest	0	-21	swapper/1	07:40:37	1
2053161	99	40	31,6	cyclictest	2053520	-21	sed	07:10:18	0
2053161	99	40	22,16	cyclictest	2056148	-21	fschecks_count	07:20:19	0
2053162	99	39	32,5	cyclictest	2067711	-21	fschecks_time	08:05:19	1
2053162	99	39	32,5	cyclictest	2067711	-21	fschecks_time	08:05:19	1
2053161	99	39	32,5	cyclictest	2065188	-21	grep	07:55:23	0
2053161	99	39	31,6	cyclictest	2058739	-21	fschecks_time	07:30:19	0
2053162	99	38	31,5	cyclictest	2078173	-21	ldconfig	08:45:27	1
2053162	99	38	30,6	cyclictest	2072558	-21	aten_r7power_en	08:25:16	1
2053162	99	38	30,6	cyclictest	2072558	-21	aten_r7power_en	08:25:16	1
2053162	99	38	28,7	cyclictest	0	-21	swapper/1	08:15:25	1
2053162	99	37	30,5	cyclictest	0	-21	swapper/1	08:35:29	1
2053162	99	37	28,6	cyclictest	0	-21	swapper/1	08:45:02	1
2053161	99	31	24,5	cyclictest	256	50	irq/23-42890000.ethernet	07:10:00	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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