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 highest latencies:

System rack7slot2.osadl.org (updated Sun May 03, 2026 12:44:12)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2029535	99	107	74,5	cyclictest	53	-21	kswapd0	10:20:11	1
2029535	99	96	87,6	cyclictest	2029458	-21	kworker/u4:9+events_unbound	09:34:57	1
2029534	99	92	32,37	cyclictest	53	-21	kswapd0	11:20:18	0
2029535	99	90	82,6	cyclictest	2181719	-21	kworker/u4:8+events_unbound	11:45:29	1
2029535	99	89	81,6	cyclictest	2160120	-21	kworker/u4:8+events_unbound	11:05:20	1
2029535	99	89	81,6	cyclictest	2067464	-21	kworker/u4:5+events_unbound	09:44:59	1
2029534	99	89	79,7	cyclictest	2212459	-21	kworker/u4:6+events_unbound	12:05:35	0
2029535	99	86	73,10	cyclictest	53	-21	kswapd0	10:55:19	1
2029534	99	86	37,20	cyclictest	2174896	-21	latency_hist	11:20:02	0
2029534	99	76	67,7	cyclictest	2137835	-21	kworker/u4:2+events_unbound	10:45:17	0
2029535	99	75	68,5	cyclictest	2076512	-21	kworker/u4:4+events_unbound	09:39:58	1
2029535	99	70	62,6	cyclictest	2116117	-21	kworker/u4:3+events_unbound	10:15:00	1
2029535	99	70	60,7	cyclictest	2177256	-21	kworker/u4:9+events_unbound	11:40:28	1
2029535	99	68	60,6	cyclictest	2072024	-21	kworker/u4:11+events_unbound	09:29:55	1
2029534	99	67	59,4	cyclictest	2181715	-21	kworker/u4:2+events_unbound	11:30:26	0
2029535	99	66	57,6	cyclictest	0	-21	swapper/1	11:50:41	1
2029534	99	65	54,9	cyclictest	2230398	-21	kworker/u4:10+events_unbound	12:25:41	0
2029535	99	62	55,5	cyclictest	2163937	-21	kworker/u4:11+events_unbound	11:10:21	1
2029535	99	61	49,9	cyclictest	0	-21	swapper/1	10:00:15	1
2029534	99	61	43,13	cyclictest	2117418	-21	ssh	10:14:31	0
2029534	99	60	53,4	cyclictest	2157255	-21	tr	11:00:00	0
2029535	99	58	41,5	cyclictest	2186198	-21	kworker/u4:7+events_unbound	11:55:31	1
2029534	99	58	49,6	cyclictest	53	-21	kswapd0	12:40:01	0
2029534	99	58	46,9	cyclictest	2128892	-21	ssh	10:26:46	0
2029534	99	58	41,11	cyclictest	256	50	irq/23-42890000.ethernet	11:45:10	0
2029535	99	57	50,5	cyclictest	2188945	-21	ntpq	11:35:25	1
2029534	99	57	49,6	cyclictest	2067465	-21	kworker/u4:7+events_unbound	09:19:55	0
2029534	99	57	48,6	cyclictest	2100242	-21	latency_hist	09:55:02	0
2029535	99	56	48,5	cyclictest	2177256	-21	kworker/u4:9+events_unbound	11:25:25	1
2029535	99	56	48,5	cyclictest	2177256	-21	kworker/u4:9+events_unbound	11:25:24	1
2029535	99	56	47,6	cyclictest	2093752	-21	kworker/u4:6+events_unbound	10:15:10	1
2029534	99	56	38,13	cyclictest	2170476	-21	ssh	11:15:02	0
2029534	99	56	21,24	cyclictest	256	50	irq/23-42890000.ethernet	09:20:09	0
2029534	99	56	21,24	cyclictest	256	50	irq/23-42890000.ethernet	09:20:09	0
2029535	99	55	47,6	cyclictest	2050022	-21	kworker/u4:0+events_unbound	08:34:47	1
2029535	99	55	46,7	cyclictest	2032120	-21	kworker/u4:10+events_unbound	07:49:42	1
2029534	99	55	48,5	cyclictest	2118462	-21	/usr/sbin/munin	10:15:21	0
2029534	99	55	47,6	cyclictest	2028252	-21	kworker/u4:2+events_unbound	07:54:43	0
2029535	99	54	42,10	cyclictest	378	-21	dbus-daemon	12:20:38	1
2029534	99	54	40,6	cyclictest	2098244	-21	kworker/u4:0+events_unbound	09:55:05	0
2029535	99	53	46,5	cyclictest	2145185	-21	sh	10:45:29	1
2029535	99	53	46,5	cyclictest	2127480	-21	/usr/sbin/munin	10:25:24	1
2029535	99	53	46,5	cyclictest	2070103	-21	/usr/sbin/munin	09:20:28	1
2029535	99	53	46,5	cyclictest	2070103	-21	/usr/sbin/munin	09:20:28	1
2029535	99	53	46,5	cyclictest	2041655	-21	gltestperf	07:55:20	1
2029535	99	53	44,6	cyclictest	2216935	-21	kworker/u4:3+events_unbound	12:15:39	1
2029534	99	53	44,6	cyclictest	2038562	-21	sh	07:45:00	0
2029534	99	53	38,13	cyclictest	2237064	-21	sh	12:30:19	0
2029535	99	52	46,4	cyclictest	2032120	-21	kworker/u4:10+events_unbound	09:14:54	1
2029534	99	52	45,4	cyclictest	2083078	-21	diskmemload	09:35:18	0
2029534	99	52	18,30	cyclictest	256	50	irq/23-42890000.ethernet	12:10:14	0
2029534	99	52	18,30	cyclictest	256	50	irq/23-42890000.ethernet	12:10:14	0
2029535	99	51	42,6	cyclictest	0	-21	swapper/1	11:15:21	1
2029535	99	51	33,10	cyclictest	2053879	-21	kworker/u4:2	08:45:00	1
2029534	99	51	41,7	cyclictest	2211616	-21	unixbench_singl	12:00:41	0
2029535	99	50	42,6	cyclictest	2216936	-21	kworker/u4:4+events_unbound	12:08:00	1
2029535	99	50	40,7	cyclictest	2033423	-21	kworker/u4:15+events_unbound	07:29:38	1
2029535	99	50	39,8	cyclictest	2107194	-21	kworker/u4:0+events_unbound	10:40:37	1
2029535	99	50	25,9	cyclictest	2181719	-21	kworker/u4:8+events_unbound	12:00:24	1
2029534	99	50	41,7	cyclictest	53	-21	kswapd0	10:55:01	0
2029534	99	50	41,7	cyclictest	53	-21	kswapd0	10:55:01	0
2029534	99	50	40,6	cyclictest	2131941	-21	/usr/sbin/munin	10:30:25	0
2029534	99	50	29,19	cyclictest	0	-21	swapper/0	11:00:36	0
2029534	99	49	41,5	cyclictest	2122434	-21	apt-get	10:20:11	0
2029534	99	49	40,7	cyclictest	2091650	-21	ssh	09:45:15	0
2029534	99	49	39,8	cyclictest	2030023	-21	fschecks_time	07:10:19	0
2029535	99	48	41,5	cyclictest	2136194	-21	/usr/sbin/munin	10:35:22	1
2029535	99	48	40,6	cyclictest	2152915	-21	latency_hist	10:55:01	1
2029535	99	48	40,6	cyclictest	2152915	-21	latency_hist	10:55:01	1
2029535	99	48	40,6	cyclictest	2135354	-21	sh	10:35:01	1
2029535	99	48	40,6	cyclictest	0	-21	swapper/1	08:35:29	1
2029535	99	48	38,7	cyclictest	2080344	-21	kworker/u4:7+events_unbound	09:50:13	1
2029534	99	48	41,5	cyclictest	2029530	-21	cyclictest	09:10:19	0
2029534	99	48	40,6	cyclictest	378	-21	dbus-daemon	10:05:07	0
2029534	99	48	40,5	cyclictest	2179818	-21	tune2fs	11:25:21	0
2029534	99	48	40,5	cyclictest	2179818	-21	tune2fs	11:25:21	0
2029534	99	48	39,7	cyclictest	2104756	-21	systemd	10:00:05	0
2029534	99	48	26,19	cyclictest	0	-21	swapper/0	11:55:00	0
2029535	99	47	40,5	cyclictest	2241851	-21	ssh	12:35:27	1
2029535	99	47	40,5	cyclictest	2233199	-21	ldconfig	12:25:34	1
2029535	99	47	40,5	cyclictest	2100391	-21	sshd	09:55:10	1
2029535	99	47	40,5	cyclictest	2092710	-21	diskmemload	09:45:40	1
2029535	99	47	23,6	cyclictest	17	1	rcu_preempt	12:30:15	1
2029534	99	47	38,7	cyclictest	2136942	-21	unixbench_singl	10:35:41	0
2029534	99	47	38,6	cyclictest	2060289	-21	awk	09:10:00	0
2029534	99	47	38,6	cyclictest	2030753	-21	kworker/u4:0+events_unbound	07:30:01	0
2029534	99	47	31,10	cyclictest	0	-21	swapper/0	09:25:37	0
2029534	99	47	2,37	cyclictest	2079416	-21	awk	09:30:38	0
2029535	99	46	39,5	cyclictest	2220287	-21	/usr/sbin/munin	12:10:38	1
2029535	99	46	39,5	cyclictest	2220287	-21	/usr/sbin/munin	12:10:38	1
2029535	99	46	37,6	cyclictest	2109325	-21	aten2__	10:05:16	1
2029535	99	46	35,8	cyclictest	2161635	-21	sh	11:05:00	1
2029534	99	46	39,5	cyclictest	2087642	-21	fschecks_time	09:40:21	0
2029534	99	46	39,5	cyclictest	2050518	-21	fschecks_time	08:30:18	0
2029534	99	46	38,6	cyclictest	2029458	-21	kworker/u4:9+events_unbound	07:39:40	0
2029534	99	46	37,6	cyclictest	2162298	-21	fschecks_count	11:05:20	0
2029534	99	46	37,6	cyclictest	2032589	-21	fschecks_count	07:20:18	0
2029534	99	46	37,6	cyclictest	2032589	-21	fschecks_count	07:20:18	0
2029534	99	46	36,8	cyclictest	2228352	-21	fschecks_time	12:20:19	0
2029535	99	45	38,5	cyclictest	2047456	-21	kworker/u4:11+events_unbound	09:10:01	1
2029535	99	45	38,5	cyclictest	2037722	-21	cut	07:40:18	1
2029535	99	45	36,7	cyclictest	2044809	-21	unixbench_multi	08:05:39	1
2029535	99	45	34,8	cyclictest	2057756	-21	latency_hist	09:00:01	1
2029534	99	45	37,5	cyclictest	2053890	-21	cron	08:45:01	0
2029534	99	45	37,5	cyclictest	2031736	-21	grep	07:15:40	0
2029534	99	45	36,7	cyclictest	2192963	-21	df_abs	11:40:18	0
2029534	99	45	36,7	cyclictest	2055712	-21	gltestperf	08:50:20	0
2029534	99	45	35,7	cyclictest	2048662	-21	unixbench_multi	08:20:37	0
2029534	99	45	35,7	cyclictest	2048662	-21	unixbench_multi	08:20:37	0
2029534	99	45	29,14	cyclictest	1665534	-21	kworker/u4:1-rpciod	08:02:12	0
2029535	99	44	37,5	cyclictest	2030800	-21	modprobe	07:15:00	1
2029535	99	44	26,5	cyclictest	2177255	-21	kworker/u4:7+events_unbound	11:24:28	1
2029534	99	44	37,5	cyclictest	2224631	-21	threads	12:15:41	0
2029534	99	44	36,5	cyclictest	2133356	-21	kworker/u4:6+events_unbound	10:40:03	0
2029534	99	44	35,7	cyclictest	2188982	-21	ntp_kernel_pll_	11:35:27	0
2029534	99	44	35,7	cyclictest	2035167	-21	fschecks_count	07:30:21	0
2029534	99	44	35,5	cyclictest	0	-21	swapper/0	11:56:08	0
2029534	99	44	34,8	cyclictest	2039797	-21	kworker/u4:17+events_unbound	08:20:01	0
2029534	99	44	22,20	cyclictest	0	-21	swapper/0	08:00:00	0
2029535	99	43	36,5	cyclictest	524	-21	in:imuxsock	11:30:25	1
2029535	99	43	36,5	cyclictest	2049999	-21	unixbench_singl	08:25:41	1
2029535	99	43	36,5	cyclictest	2036002	-21	idleruntime-cro	07:35:00	1
2029535	99	43	34,6	cyclictest	2042959	-21	gltestperf	08:00:21	1
2029535	99	43	32,8	cyclictest	2056557	-21	latency_hist	08:55:01	1
2029535	99	43	32,8	cyclictest	2031881	-21	threads	07:15:41	1
2029535	99	43	30,9	cyclictest	0	-21	swapper/1	09:15:35	1
2029535	99	42	36,4	cyclictest	2058980	-21	systemd	09:04:50	1
2029535	99	42	30,9	cyclictest	2032496	-21	wc	07:20:16	1
2029535	99	42	30,9	cyclictest	2032496	-21	wc	07:20:16	1
2029534	99	42	35,5	cyclictest	2052344	-21	timerandwakeup	08:35:37	0
2029534	99	42	35,5	cyclictest	2038968	-21	fschecks_count	07:45:19	0
2029534	99	42	34,6	cyclictest	2058647	-21	cat	09:00:36	0
2029535	99	41	31,8	cyclictest	2046259	-21	latency_hist	08:15:01	1
2029535	99	41	29,9	cyclictest	2037346	-21	sort	07:40:01	1
2029534	99	41	34,5	cyclictest	2044158	-21	grep	08:05:20	0
2029534	99	41	33,6	cyclictest	2054414	-21	gltestperf	08:45:20	0
2029534	99	41	33,5	cyclictest	2056921	-21	fschecks_time	08:55:19	0
2029534	99	41	31,7	cyclictest	2045195	-21	aten_r7power_po	08:10:15	0
2029535	99	40	33,5	cyclictest	2047947	-21	fschecks_count	08:20:19	1
2029535	99	40	33,5	cyclictest	2047947	-21	fschecks_count	08:20:18	1
2029535	99	40	33,5	cyclictest	2046636	-21	fschecks_count	08:15:19	1
2029535	99	39	31,5	cyclictest	2028252	-21	kworker/u4:2-rpciod	08:45:20	1
2029534	99	39	16,20	cyclictest	2049220	-21	fschecks_count	08:25:21	0
2029535	99	38	29,6	cyclictest	0	-21	swapper/1	07:50:21	1
2029535	99	34	25,6	cyclictest	0	-21	swapper/1	07:10:03	1
2029534	99	27	21,3	cyclictest	0	-21	swapper/0	07:10:02	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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