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 376 highest latencies:

System rack7slot2.osadl.org (updated Thu Jul 09, 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
2050553	99	116	108,6	cyclictest	2137309	-21	kworker/u4:2+events_unbound	10:13:31	1
2050553	99	102	91,9	cyclictest	2141752	-21	kworker/u4:11+events_unbound	10:25:45	1
2050553	99	102	91,9	cyclictest	2141752	-21	kworker/u4:11+events_unbound	10:25:45	1
2050553	99	90	82,6	cyclictest	2119915	-21	kworker/u4:5+events_unbound	09:55:40	1
2050553	99	76	68,6	cyclictest	2073663	-21	kworker/u4:8+events_unbound	08:40:25	1
2050553	99	75	70,3	cyclictest	2065919	-21	kworker/u4:9+events_unbound	08:55:31	1
2050552	99	75	36,35	cyclictest	0	-21	swapper/0	08:10:17	0
2050553	99	74	67,5	cyclictest	2167781	-21	kworker/u4:9+events_unbound	11:00:50	1
2050553	99	74	66,6	cyclictest	2137312	-21	kworker/u4:6+events_unbound	10:20:45	1
2050553	99	74	44,4	cyclictest	2113327	-21	fschecks_count	09:45:21	1
2050553	99	71	62,7	cyclictest	2065919	-21	kworker/u4:9+events_unbound	08:45:30	1
2050553	99	70	62,5	cyclictest	2041926	-21	kworker/u4:4+events_unbound	08:35:01	1
2050553	99	70	61,6	cyclictest	2068458	-21	kworker/u4:1+events_unbound	08:25:21	1
2050552	99	70	40,27	cyclictest	2105145	-21	grep	09:35:40	0
2050552	99	70	3,46	cyclictest	2236462	-21	ps	12:05:39	0
2050552	99	70	31,36	cyclictest	2205355	-21	df_abs	11:30:23	0
2050552	99	69	32,34	cyclictest	2057447	-21	fschecks_count	07:35:22	0
2050553	99	68	57,8	cyclictest	53	-21	kswapd0	09:30:34	1
2050552	99	68	36,29	cyclictest	2223126	-21	ld	11:50:25	0
2050552	99	68	33,33	cyclictest	2158284	-21	sh	10:35:43	0
2050552	99	68	33,33	cyclictest	2158284	-21	sh	10:35:43	0
2050552	99	68	32,33	cyclictest	2258004	-21	if_eth0	12:30:23	0
2050552	99	68	31,34	cyclictest	2136457	-21	unixbench-2d	10:10:44	0
2050552	99	68	29,35	cyclictest	0	-21	swapper/0	10:50:17	0
2050552	99	67	33,29	cyclictest	0	-21	swapper/0	07:35:01	0
2050552	99	67	31,33	cyclictest	0	-21	swapper/0	09:10:30	0
2050552	99	67	28,36	cyclictest	0	-21	swapper/0	10:20:34	0
2050552	99	67	1,17	cyclictest	2096424	-21	sed	09:25:40	0
2050552	99	66	37,27	cyclictest	2076748	-21	fschecks_count	08:50:19	0
2050552	99	66	36,27	cyclictest	2068458	-21	kworker/u4:1-rpciod	09:30:17	0
2050552	99	66	32,31	cyclictest	0	-21	swapper/0	12:10:33	0
2050552	99	65	34,28	cyclictest	2166963	-21	cat	10:45:41	0
2050552	99	65	30,31	cyclictest	0	-21	swapper/0	12:25:34	0
2050552	99	65	26,35	cyclictest	0	-21	swapper/0	10:40:18	0
2050552	99	64	30,31	cyclictest	2069643	-21	unixbench-2d	08:20:37	0
2050552	99	64	30,31	cyclictest	0	-21	swapper/0	11:25:21	0
2050552	99	64	29,4	cyclictest	2067580	-21	df_abs	08:15:17	0
2050552	99	64	29,32	cyclictest	0	-21	swapper/0	12:20:39	0
2050552	99	64	28,4	cyclictest	0	-21	swapper/0	12:35:30	0
2050552	99	64	28,32	cyclictest	0	-21	swapper/0	09:40:28	0
2050552	99	64	27,7	cyclictest	2187851	-21	df_abs	11:10:19	0
2050552	99	64	27,34	cyclictest	0	-21	swapper/0	11:40:12	0
2050552	99	64	26,5	cyclictest	2050480	-21	kworker/u4:1-rpciod	07:25:26	0
2050552	99	63	29,6	cyclictest	2062085	-21	kworker/u4:15-rpciod	09:05:40	0
2050552	99	63	28,32	cyclictest	0	-21	swapper/0	09:15:33	0
2050552	99	63	27,6	cyclictest	0	-21	swapper/0	07:45:38	0
2050552	99	63	27,4	cyclictest	0	-21	swapper/0	12:05:01	0
2050552	99	63	26,5	cyclictest	0	-21	swapper/0	11:00:39	0
2050552	99	63	2,30	cyclictest	2062875	-21	ntpq	07:55:30	0
2050552	99	63	1,13	cyclictest	2197182	-21	ntp_states	11:20:31	0
2050552	99	62	33,26	cyclictest	0	-21	swapper/0	10:30:18	0
2050552	99	62	29,29	cyclictest	0	-21	swapper/0	08:45:15	0
2050552	99	62	26,7	cyclictest	0	-21	swapper/0	08:30:17	0
2050552	99	62	26,6	cyclictest	0	-21	swapper/0	10:55:40	0
2050552	99	62	25,4	cyclictest	0	-21	swapper/0	09:00:37	0
2050552	99	61	28,30	cyclictest	0	-21	swapper/0	11:05:20	0
2050552	99	61	27,5	cyclictest	0	-21	swapper/0	12:15:36	0
2050552	99	61	26,7	cyclictest	0	-21	swapper/0	10:00:28	0
2050552	99	61	26,5	cyclictest	2053304	-21	aten2__	07:20:15	0
2050552	99	61	24,34	cyclictest	0	-21	swapper/0	08:40:00	0
2050552	99	61	22,9	cyclictest	2122172	-21	forks	09:55:18	0
2050552	99	60	28,29	cyclictest	0	-21	swapper/0	10:05:31	0
2050552	99	60	26,6	cyclictest	2113497	-21	gltestperf	09:45:23	0
2050552	99	60	25,4	cyclictest	2077586	-21	kworker/u4:19-rpciod	09:20:17	0
2050552	99	60	22,7	cyclictest	0	-21	swapper/0	11:35:29	0
2050552	99	59	25,5	cyclictest	0	-21	swapper/0	11:58:31	0
2050552	99	59	23,6	cyclictest	0	-21	swapper/0	11:45:35	0
2050553	99	58	52,4	cyclictest	2176640	-21	kworker/u4:5+events_unbound	11:00:00	1
2050553	99	58	51,5	cyclictest	2119915	-21	kworker/u4:5+events_unbound	10:08:53	1
2050553	99	58	50,5	cyclictest	2051778	-21	kworker/u4:7+events_unbound	08:10:17	1
2050553	99	58	49,6	cyclictest	0	-21	swapper/1	09:50:14	1
2050552	99	58	27,4	cyclictest	0	-21	swapper/0	08:40:31	0
2050552	99	57	23,9	cyclictest	2058737	-21	fschecks_count	07:40:19	0
2050552	99	57	21,7	cyclictest	2051647	-21	unixbench-2d	07:10:36	0
2050553	99	56	48,6	cyclictest	2241787	-21	kworker/u4:10+events_unbound	12:26:03	1
2050553	99	56	48,6	cyclictest	2062089	-21	kworker/u4:16+events_unbound	08:20:20	1
2050553	99	54	46,5	cyclictest	2073663	-21	kworker/u4:8+events_unbound	09:15:35	1
2050552	99	54	45,6	cyclictest	53	-21	kswapd0	10:20:02	0
2050553	99	53	46,5	cyclictest	2209876	-21	/usr/sbin/munin	11:35:19	1
2050553	99	53	38,12	cyclictest	2196664	-21	fschecks_count	11:20:18	1
2050553	99	53	37,11	cyclictest	2130458	-21	modprobe	10:05:00	1
2050553	99	52	44,6	cyclictest	2165538	-21	sh	10:45:00	1
2050553	99	52	44,6	cyclictest	2060854	-21	systemd	07:50:04	1
2050553	99	52	44,5	cyclictest	2262373	-21	/usr/sbin/munin	12:35:20	1
2050553	99	52	42,7	cyclictest	2073663	-21	kworker/u4:8+events_unbound	09:00:31	1
2050553	99	51	44,5	cyclictest	2053060	-21	kworker/u4:12+events_unbound	07:25:01	1
2050553	99	51	43,6	cyclictest	2229121	-21	kworker/u4:0+events_unbound	12:06:01	1
2050553	99	51	43,6	cyclictest	2185485	-21	kworker/u4:7+events_unbound	11:40:57	1
2050553	99	51	39,9	cyclictest	2055903	-21	acpi	07:30:11	1
2050553	99	49	41,5	cyclictest	2240150	-21	/usr/sbin/munin	12:10:16	1
2050553	99	49	37,7	cyclictest	0	-21	swapper/1	10:30:12	1
2050552	99	49	42,5	cyclictest	2192377	-21	fschecks_time	11:15:20	0
2050552	99	49	30,16	cyclictest	0	-21	swapper/0	07:20:01	0
2050553	99	48	37,7	cyclictest	0	-21	swapper/1	11:05:38	1
2050552	99	48	37,9	cyclictest	2117798	-21	fschecks_count	09:50:20	0
2050553	99	47	40,5	cyclictest	2055668	-21	idleruntime-cro	07:30:00	1
2050553	99	47	37,7	cyclictest	0	-21	swapper/1	11:30:19	1
2050553	99	47	25,8	cyclictest	2101851	-21	kworker/u4:3+events_unbound	09:35:40	1
2050552	99	47	40,5	cyclictest	2070225	-21	sshd	08:25:20	0
2050553	99	46	39,5	cyclictest	2086027	-21	latency_hist	09:15:00	1
2050553	99	46	37,6	cyclictest	2228330	-21	sd-accept	11:55:59	1
2050553	99	46	37,6	cyclictest	2187870	-21	sed	11:10:18	1
2050553	99	46	35,8	cyclictest	2109741	-21	timerwakeupswit	09:40:39	1
2050553	99	45	39,4	cyclictest	0	-21	swapper/1	09:20:35	1
2050553	99	45	38,5	cyclictest	2223213	-21	diskmemload	11:50:29	1
2050553	99	45	37,5	cyclictest	2249149	-21	gltestperf	12:20:21	1
2050553	99	45	34,9	cyclictest	2231203	-21	/usr/sbin/munin	12:00:10	1
2050552	99	45	38,4	cyclictest	0	-21	swapper/0	10:25:45	0
2050552	99	45	38,4	cyclictest	0	-21	swapper/0	10:25:44	0
2050553	99	44	38,4	cyclictest	2081590	-21	latency_hist	09:10:01	1
2050553	99	44	37,5	cyclictest	2257852	-21	sort	12:30:21	1
2050553	99	44	37,5	cyclictest	2063609	-21	aten2__	08:00:16	1
2050553	99	44	37,5	cyclictest	2062139	-21	latency_hist	07:55:02	1
2050553	99	44	37,5	cyclictest	2062139	-21	latency_hist	07:55:01	1
2050553	99	44	36,5	cyclictest	2076821	-21	fschecks_time	08:50:20	1
2050553	99	44	33,8	cyclictest	2050839	-21	aten_r7power_vo	07:10:14	1
2050553	99	43	36,5	cyclictest	2218128	-21	apt-get	11:45:13	1
2050553	99	43	36,5	cyclictest	2057209	-21	cut	07:35:19	1
2050553	99	43	35,5	cyclictest	2053120	-21	tr	07:20:00	1
2050553	99	43	33,8	cyclictest	2244672	-21	fschecks_time	12:15:21	1
2050553	99	43	32,7	cyclictest	0	-21	swapper/1	10:15:29	1
2050553	99	43	31,8	cyclictest	2065676	-21	switchtime	08:05:38	1
2050553	99	43	27,11	cyclictest	0	-21	swapper/1	09:25:28	1
2050552	99	43	34,6	cyclictest	0	-21	swapper/0	08:05:28	0
2050552	99	43	33,8	cyclictest	2077864	-21	aten_r7power_po	08:55:14	0
2050553	99	42	35,5	cyclictest	2200811	-21	aten_r7power_en	11:25:16	1
2050553	99	42	35,5	cyclictest	2158921	-21	sshd	10:36:27	1
2050553	99	42	35,5	cyclictest	2158921	-21	sshd	10:36:27	1
2050553	99	42	34,5	cyclictest	2062599	-21	fschecks_time	07:55:20	1
2050553	99	41	34,4	cyclictest	2073696	-21	apt-get	08:40:01	1
2050553	99	41	32,7	cyclictest	2068234	-21	threads	08:15:37	1
2050553	99	41	31,8	cyclictest	2167144	-21	unixbench_singl	10:45:43	1
2050552	99	41	30,7	cyclictest	0	-21	swapper/0	07:50:38	0
2050552	99	41	30,7	cyclictest	0	-21	swapper/0	07:50:38	0
2050552	99	41	29,9	cyclictest	0	-21	swapper/0	08:00:20	0
2050553	99	40	33,5	cyclictest	2171294	-21	sort	10:50:41	1
2050553	99	40	32,5	cyclictest	0	-21	swapper/1	11:15:21	1
2050553	99	39	29,7	cyclictest	0	-21	swapper/1	07:40:38	1
2050552	99	30	22,6	cyclictest	0	-21	swapper/0	07:10:01	0
2050553	99	26	19,5	cyclictest	2035405	-21	kworker/u4:14+events_unbound	07:10:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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