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 Sat Apr 18, 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
2133302	99	93	37,14	cyclictest	2199971	-21	modprobe	21:50:01	1
2133302	99	84	75,7	cyclictest	2184565	-21	kworker/u4:2+events_unbound	21:36:04	1
2133302	99	79	72,5	cyclictest	2242555	-21	kworker/u4:9+events_unbound	22:51:20	1
2133302	99	79	70,6	cyclictest	2143568	-21	kworker/u4:3+events_unbound	19:50:02	1
2133299	99	79	73,4	cyclictest	2241905	-21	kworker/u4:2+events_unbound	23:01:21	0
2133299	99	78	69,6	cyclictest	2123351	-21	kworker/u4:9+events_unbound	20:25:00	0
2133299	99	74	30,27	cyclictest	0	-21	swapper/0	23:05:41	0
2133302	99	72	65,5	cyclictest	2133297	-21	cyclictest	00:01:43	1
2133302	99	72	65,5	cyclictest	2133297	-21	cyclictest	00:01:42	1
2133299	99	72	21,28	cyclictest	256	50	irq/23-42890000.ethernet	21:25:37	0
2133299	99	72	17,32	cyclictest	2205786	-21	ssh	21:55:37	0
2133299	99	71	2,63	cyclictest	2133297	-21	cyclictest	19:09:59	0
2133299	99	71	19,33	cyclictest	2275300	-21	df_inode	23:15:16	0
2133302	99	69	60,6	cyclictest	2241905	-21	kworker/u4:2+events_unbound	00:13:29	1
2133299	99	69	40,26	cyclictest	378	-21	dbus-daemon	00:33:49	0
2133299	99	69	3,44	cyclictest	0	-21	swapper/0	23:45:30	0
2133299	99	68	28,37	cyclictest	256	50	irq/23-42890000.ethernet	00:00:34	0
2133299	99	68	28,37	cyclictest	256	50	irq/23-42890000.ethernet	00:00:33	0
2133302	99	66	56,8	cyclictest	2202713	-21	kworker/u4:0+events_unbound	22:16:12	1
2133302	99	66	42,18	cyclictest	0	-21	swapper/1	22:05:35	1
2133299	99	66	49,15	cyclictest	2259690	-21	kworker/u4:15+events_unbound	23:00:01	0
2133299	99	66	22,28	cyclictest	0	-21	swapper/0	22:40:02	0
2133299	99	65	3,56	cyclictest	2201039	-21	ssh	21:50:29	0
2133299	99	65	33,30	cyclictest	2310186	-21	df_abs	23:55:16	0
2133299	99	65	30,33	cyclictest	2328564	-21	unixbench-2d	00:15:40	0
2133299	99	65	2,5	cyclictest	2279412	-21	apt-get	23:20:11	0
2133299	99	65	2,5	cyclictest	2279412	-21	apt-get	23:20:10	0
2133299	99	65	2,56	cyclictest	2183278	-21	ntpq	21:30:33	0
2133302	99	64	51,9	cyclictest	37	-21	kcompactd0	23:35:20	1
2133299	99	64	6,54	cyclictest	15	1	ktimers/0	23:30:13	0
2133299	99	64	53,4	cyclictest	2123351	-21	kworker/u4:9+events_unbound	19:20:35	0
2133299	99	64	3,55	cyclictest	2245308	-21	ssh	22:40:30	0
2133299	99	64	32,29	cyclictest	2149293	-21	gltestperf	20:10:20	0
2133299	99	64	29,29	cyclictest	2319415	-21	ntp_kernel_pll_	00:05:30	0
2133299	99	64	2,7	cyclictest	2155926	-21	ntpq	20:35:27	0
2133299	99	64	2,16	cyclictest	2162591	-21	ntpq	21:00:33	0
2133299	99	64	21,40	cyclictest	2161539	-21	sed	20:55:42	0
2133302	99	63	47,12	cyclictest	2310449	-21	gltestperf	23:55:20	1
2133299	99	63	9,50	cyclictest	2169930	-21	ssh	21:15:36	0
2133299	99	63	49,10	cyclictest	2134542	-21	kworker/u4:2	19:15:01	0
2133299	99	63	40,19	cyclictest	2284048	-21	/usr/sbin/munin	23:25:18	0
2133299	99	63	3,55	cyclictest	2145629	-21	ntpq	19:55:27	0
2133299	99	63	29,30	cyclictest	2306012	-21	gltestperf	23:50:18	0
2133299	99	63	14,28	cyclictest	0	-21	swapper/0	00:11:27	0
2133302	99	62	49,10	cyclictest	2204840	-21	aten_r7power_po	21:55:14	1
2133299	99	62	3,14	cyclictest	2153446	-21	ntpq	20:25:34	0
2133299	99	62	30,29	cyclictest	2296899	-21	aten2__	23:40:16	0
2133299	99	62	30,29	cyclictest	0	-21	swapper/0	21:20:17	0
2133299	99	62	24,35	cyclictest	256	50	irq/23-42890000.ethernet	22:50:31	0
2133299	99	62	1,8	cyclictest	2142490	-21	apt-get	19:45:12	0
2133302	99	61	47,10	cyclictest	0	-21	swapper/1	21:30:41	1
2133302	99	61	44,10	cyclictest	0	-21	swapper/1	22:25:05	1
2133299	99	61	7,50	cyclictest	2187277	-21	ssh	21:35:20	0
2133299	99	61	4,51	cyclictest	2159277	-21	apt-get	20:50:11	0
2133299	99	61	4,51	cyclictest	2159277	-21	apt-get	20:50:10	0
2133299	99	61	2,14	cyclictest	2144326	-21	ntpq	19:50:25	0
2133299	99	61	20,39	cyclictest	0	-21	swapper/0	22:45:21	0
2133302	99	60	50,6	cyclictest	2238106	-21	kworker/u4:1+events_unbound	22:40:01	1
2133302	99	60	47,9	cyclictest	37	-21	kcompactd0	23:14:28	1
2133302	99	60	46,8	cyclictest	2268586	-21	kworker/u4:1-rpciod	23:15:13	1
2133299	99	60	5,34	cyclictest	2236491	-21	ntpq	22:30:32	0
2133299	99	60	3,53	cyclictest	2213616	-21	apt-get	22:05:12	0
2133299	99	60	2,8	cyclictest	2336731	-21	ntpq	00:25:29	0
2133299	99	60	2,7	cyclictest	2271337	-21	ssh	23:10:22	0
2133299	99	60	2,53	cyclictest	2164603	-21	apt-get	21:10:14	0
2133299	99	60	25,31	cyclictest	2143569	-21	kworker/u4:4-rpciod	20:15:19	0
2133299	99	60	23,35	cyclictest	2222475	-21	ssh	22:15:15	0
2133299	99	60	23,33	cyclictest	0	-21	swapper/0	00:35:59	0
2133299	99	60	22,36	cyclictest	256	50	irq/23-42890000.ethernet	19:15:29	0
2133299	99	60	2,13	cyclictest	2158003	-21	apt-get	20:45:21	0
2133299	99	60	1,14	cyclictest	2191326	-21	/usr/sbin/munin	21:40:10	0
2133302	99	59	51,6	cyclictest	2255253	-21	kworker/u4:13+events_unbound	22:56:20	1
2133302	99	59	44,12	cyclictest	2157750	-21	cron	20:45:01	1
2133299	99	59	3,8	cyclictest	2195814	-21	apt-get	21:45:12	0
2133299	99	59	3,14	cyclictest	2141769	-21	ntpq	19:40:29	0
2133299	99	59	31,26	cyclictest	2198199	-21	kworker/u4:11-nfsiod	22:00:26	0
2133299	99	59	29,27	cyclictest	0	-21	swapper/0	20:00:15	0
2133299	99	59	1,5	cyclictest	2292870	-21	fschecks_time	23:35:20	0
2133299	99	59	1,4	cyclictest	2163423	-21	df_inode	21:05:16	0
2133299	99	58	2,52	cyclictest	2148233	-21	ntpq	20:05:30	0
2133299	99	58	24,30	cyclictest	2137488	-21	sed	19:25:16	0
2133299	99	58	2,13	cyclictest	2140417	-21	ntpq	19:35:26	0
2133299	99	58	1,9	cyclictest	2331719	-21	apt-get	00:20:12	0
2133299	99	58	1,9	cyclictest	2232316	-21	/usr/sbin/munin	22:25:40	0
2133302	99	57	37,16	cyclictest	2342463	-21	sh	00:31:53	1
2133299	99	57	3,49	cyclictest	2154075	-21	apt-get	20:30:12	0
2133299	99	57	2,5	cyclictest	2227611	-21	ntpq	22:20:25	0
2133299	99	57	1,9	cyclictest	2218005	-21	apt-get	22:10:13	0
2133299	99	56	3,8	cyclictest	2157218	-21	ntpq	20:40:25	0
2133299	99	56	2,49	cyclictest	2139165	-21	ntpq	19:30:27	0
2133302	99	55	40,8	cyclictest	0	-21	swapper/1	19:40:40	1
2133302	99	54	47,5	cyclictest	2133231	-21	kworker/u4:1+events_unbound	20:00:44	1
2133302	99	54	45,5	cyclictest	0	-21	swapper/1	00:15:17	1
2133302	99	52	43,6	cyclictest	2268588	-21	kworker/u4:5+events_unbound	23:26:24	1
2133302	99	51	43,6	cyclictest	2332287	-21	uname	00:20:21	1
2133302	99	51	40,8	cyclictest	2305287	-21	cron	23:50:00	1
2133302	99	50	43,5	cyclictest	2191929	-21	kernelversion	21:40:20	1
2133302	99	50	41,7	cyclictest	2133230	-21	kworker/u4:0+events_unbound	20:15:45	1
2133302	99	50	38,7	cyclictest	0	-21	swapper/1	21:15:28	1
2133302	99	50	29,15	cyclictest	2247530	-21	ssh	22:43:21	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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