OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

Default latency plot of shadow in rack #e, slot #4

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8
Special All - All RT - Optimization - Ethernet - Thumbnails - Next

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 rackeslot4s.osadl.org (updated Sun Feb 01, 2026 00:44:06)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
370881	99	59	38,15	cyclictest	252	-21	systemd-journal	19:35:00	2
370881	99	59	38,15	cyclictest	252	-21	systemd-journal	19:35:00	2
370878	99	52	49,2	cyclictest	552840	-21	kworker/u8:1+events_unbound	22:15:23	1
370878	99	50	46,3	cyclictest	677278	-21	kworker/u8:3+events_unbound	00:25:22	1
370878	99	50	46,3	cyclictest	552840	-21	kworker/u8:1+flush-259:0	22:30:01	1
370878	99	49	45,3	cyclictest	490125	-21	kworker/u8:2+flush-259:0	22:00:21	1
370878	99	49	44,3	cyclictest	391512	-21	kworker/u8:3+flush-259:0	20:20:16	1
370878	99	48	45,2	cyclictest	490125	-21	kworker/u8:2+events_unbound	21:30:23	1
370878	99	47	44,2	cyclictest	677278	-21	kworker/u8:3+flush-259:0	00:20:15	1
370878	99	47	44,2	cyclictest	417316	-21	kworker/u8:2+events_unbound	20:15:23	1
370878	99	47	44,2	cyclictest	391512	-21	kworker/u8:3+flush-259:0	23:35:00	1
370878	99	47	42,3	cyclictest	635903	-21	kworker/u8:1+events_unbound	00:15:22	1
370878	99	44	41,2	cyclictest	391512	-21	kworker/u8:3+flush-259:0	22:40:25	1
370878	99	44	39,3	cyclictest	490125	-21	kworker/u8:2+flush-259:0	21:05:22	1
370878	99	43	40,2	cyclictest	552840	-21	kworker/u8:1+events_unbound	22:10:22	1
370878	99	42	39,3	cyclictest	1532717	-21	kworker/u8:0+flush-259:0	19:10:24	1
370878	99	42	39,2	cyclictest	666687	-21	kworker/u8:4+events_unbound	23:55:16	1
370878	99	42	39,2	cyclictest	1532717	-21	kworker/u8:0+flush-259:0	19:30:16	1
370878	99	42	39,2	cyclictest	1532717	-21	kworker/u8:0+flush-259:0	19:30:15	1
370878	99	41	38,2	cyclictest	391512	-21	kworker/u8:3+flush-259:0	22:24:59	1
370876	99	41	36,4	cyclictest	547325	-21	gpgv	22:00:01	0
370878	99	40	37,2	cyclictest	391512	-21	kworker/u8:3+events_unbound	21:35:22	1
370878	99	40	36,3	cyclictest	635903	-21	kworker/u8:1+flush-259:0	00:00:20	1
370878	99	40	36,3	cyclictest	316422	-21	kworker/u8:2+events_unbound	19:25:23	1
370886	99	39	32,5	cyclictest	614812	-21	cp	23:05:01	3
370886	99	39	32,5	cyclictest	504734	-21	ntpq	21:15:21	3
370878	99	39	36,2	cyclictest	406872	-21	kworker/u8:1+events_unbound	19:50:22	1
370878	99	39	35,3	cyclictest	490125	-21	kworker/u8:2+events_unbound	22:05:21	1
370878	99	38	35,2	cyclictest	391512	-21	kworker/u8:3+events_unbound	20:55:22	1
370878	99	38	34,3	cyclictest	599406	-21	apt-get	22:50:12	1
370878	99	38	32,5	cyclictest	635940	-21	apt-get	23:25:14	1
370878	99	38	32,4	cyclictest	433333	-21	/usr/sbin/munin	20:10:16	1
370876	99	38	35,2	cyclictest	75	-21	kswapd0	23:40:30	0
370878	99	37	34,2	cyclictest	391512	-21	kworker/u8:3+events_unbound	21:45:23	1
370878	99	37	33,3	cyclictest	391512	-21	kworker/u8:3+flush-259:0	23:15:22	1
370878	99	37	33,3	cyclictest	391512	-21	kworker/u8:3+flush-259:0	20:35:24	1
370878	99	37	33,3	cyclictest	391512	-21	kworker/u8:3+flush-259:0	20:35:01	1
370886	99	36	29,5	cyclictest	525364	-21	ntpq	21:35:21	3
370881	99	36	32,3	cyclictest	614653	-21	gpgv	23:05:01	2
370878	99	36	33,2	cyclictest	698586	-21	kworker/u8:4+events_unbound	00:35:25	1
370878	99	36	33,2	cyclictest	316422	-21	kworker/u8:2+events_unbound	19:15:25	1
370878	99	36	30,4	cyclictest	252	-21	systemd-journal	22:00:00	1
370886	99	35	33,1	cyclictest	655916	-21	fwupd	23:40:28	3
370886	99	35	30,4	cyclictest	635903	-21	kworker/u8:1+flush-259:0	00:00:24	3
370886	99	35	28,5	cyclictest	630822	-21	apt-get	23:20:11	3
370878	99	35	31,3	cyclictest	536539	-21	kworker/u8:0+events_unbound	21:50:02	1
370878	99	35	31,3	cyclictest	417316	-21	kworker/u8:2+flush-259:0	19:55:24	1
370876	99	35	31,3	cyclictest	509	-21	rs:main		0
370881	99	34	29,3	cyclictest	671872	-21	latency_hist	00:00:00	2
370886	99	33	29,3	cyclictest	391512	-21	kworker/u8:3+flush-259:0	20:45:21	3
370878	99	33	29,3	cyclictest	573451	-21	kworker/u8:0+flush-259:0	22:30:21	1
370878	99	32	28,3	cyclictest	391512	-21	kworker/u8:3+events_unbound	20:25:24	1
370878	99	31	27,3	cyclictest	391512	-21	kworker/u8:3+events_unbound	19:45:17	1
370886	99	30	26,3	cyclictest	391512	-21	kworker/u8:3+flush-259:0	21:45:24	3
370878	99	30	27,2	cyclictest	615279	-21	kworker/u8:0+events_unbound	23:15:01	1
370878	99	30	26,3	cyclictest	583413	-21	kworker/u8:2+flush-259:0	23:05:27	1
370886	99	29	24,4	cyclictest	391512	-21	kworker/u8:3+flush-259:0	20:40:21	3
370878	99	29	26,2	cyclictest	316422	-21	kworker/u8:2+flush-259:0	19:20:25	1
370878	99	29	25,3	cyclictest	645969	-21	kworker/u8:0+events_unbound	23:45:17	1
370878	99	29	25,3	cyclictest	391512	-21	kworker/u8:3+events_unbound	22:40:00	1
370878	99	29	25,3	cyclictest	391512	-21	kworker/u8:3+events_unbound	21:14:59	1
370878	99	29	25,3	cyclictest	391512	-21	kworker/u8:3+events_unbound	20:45:16	1
370886	99	28	21,4	cyclictest	252	-21	systemd-journal	19:20:15	3
370881	99	28	23,4	cyclictest	703283	-21	apt-get	00:32:00	2
370881	99	28	21,5	cyclictest	530466	-21	ntpq	21:40:21	2
370878	99	28	24,3	cyclictest	480118	-21	kworker/u8:0+flush-259:0	21:00:16	1
370878	99	28	21,5	cyclictest	702628	-21	ntpq	00:30:21	1
370886	99	27	24,2	cyclictest	490125	-21	kworker/u8:2+events_unbound	21:30:25	3
370886	99	27	23,3	cyclictest	490125	-21	kworker/u8:2+flush-259:0	22:00:15	3
370886	99	27	22,3	cyclictest	423082	-21	apt-get	20:00:12	3
370886	99	27	20,5	cyclictest	252	-21	systemd-journal	23:15:01	3
370881	99	27	23,3	cyclictest	547211	-21	latency_hist	22:00:01	2
370878	99	27	25,2	cyclictest	391512	-21	kworker/u8:3+flush-259:0	21:15:15	1
370878	99	27	24,2	cyclictest	645969	-21	kworker/u8:0+flush-259:0	23:40:15	1
370878	99	27	24,2	cyclictest	510989	-21	kworker/u8:0+flush-259:0	21:25:24	1
370878	99	27	23,3	cyclictest	391512	-21	kworker/u8:3+events_unbound	20:40:21	1
370886	99	26	22,3	cyclictest	417316	-21	kworker/u8:2+flush-259:0	20:30:19	3
370886	99	26	20,4	cyclictest	316422	-21	kworker/u8:2+events_unbound	19:15:22	3
370881	99	26	22,3	cyclictest	417919	-21	/usr/sbin/munin	19:55:14	2
370881	99	26	20,4	cyclictest	537136	-21	/usr/sbin/munin	21:50:14	2
370878	99	26	23,2	cyclictest	583413	-21	kworker/u8:2+events_unbound	23:20:16	1
370878	99	26	23,2	cyclictest	464603	-21	kworker/u8:2+events_unbound	20:50:25	1
370876	99	26	22,3	cyclictest	509	-21	rs:main		0
370886	99	25	19,4	cyclictest	252	-21	systemd-journal	00:20:00	3
370886	99	25	17,5	cyclictest	252	-21	systemd-journal	23:55:15	3
370878	99	25	23,1	cyclictest	406872	-21	kworker/u8:1+events_unbound	19:44:55	1
370878	99	25	21,3	cyclictest	391512	-21	kworker/u8:3+flush-259:0	19:35:24	1
370878	99	25	21,3	cyclictest	391512	-21	kworker/u8:3+events_unbound	21:21:37	1
370878	99	25	21,2	cyclictest	391512	-21	kworker/u8:3+events_unbound	23:35:19	1
370878	99	25	20,2	cyclictest	599165	-21	kworker/u8:1+events_unbound	22:55:24	1
370886	99	24	20,3	cyclictest	599165	-21	kworker/u8:1+flush-259:0	23:05:19	3
370886	99	24	18,4	cyclictest	552840	-21	kworker/u8:1+flush-259:0	22:35:16	3
370886	99	24	18,4	cyclictest	397078	-21	diskstats	19:35:13	3
370886	99	24	17,5	cyclictest	660600	-21	ntpq	23:45:23	3
370881	99	24	19,3	cyclictest	252	-21	systemd-journal	22:06:44	2
370878	99	24	20,3	cyclictest	609728	-21	apt-get	23:00:12	1
370876	99	24	17,5	cyclictest	494447	-21	ntpq	21:05:21	0
370886	99	23	18,3	cyclictest	490125	-21	kworker/u8:2+flush-259:0	21:20:20	3
370881	99	23	20,2	cyclictest	536499	-21	gpgv	21:50:00	2
370886	99	22	17,3	cyclictest	490125	-21	kworker/u8:2+flush-259:0	21:40:17	3
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


Access: public		Short link to this page
This page was last modified on 2021-09-01 - 00:34