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 Fri Jul 31, 2026 12:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1908632	99	57	54,2	cyclictest	2121968	-21	kworker/u8:4+events_unbound	11:10:16	3
1908627	99	51	46,4	cyclictest	2152998	-21	/usr/sbin/munin	11:05:15	1
1908627	99	51	46,4	cyclictest	2152998	-21	/usr/sbin/munin	11:05:15	1
1908623	99	51	44,5	cyclictest	2157926	-21	latency_hist	11:10:01	0
1908623	99	51	44,5	cyclictest	2157926	-21	latency_hist	11:10:01	0
1908627	99	48	43,3	cyclictest	335557	-21	systemd-journal	10:31:15	1
1908632	99	47	44,2	cyclictest	2121968	-21	kworker/u8:4+events_unbound	11:35:02	3
1908629	99	47	42,3	cyclictest	509	-21	rs:main		2
1908629	99	46	40,4	cyclictest	2173614	-21	/usr/sbin/munin	11:25:13	2
1908632	99	44	40,3	cyclictest	335557	-21	systemd-journal	10:44:59	3
1908632	99	43	39,3	cyclictest	2121968	-21	kworker/u8:4+events_unbound	12:03:15	3
1908632	99	42	38,3	cyclictest	2230868	-21	kworker/u8:3+events_unbound	12:22:16	3
1908623	99	42	36,4	cyclictest	1966033	-21	/usr/sbin/munin	08:05:18	0
1908632	99	41	38,2	cyclictest	1918688	-21	kworker/u8:2+flush-259:0	07:20:16	3
1908632	99	41	37,3	cyclictest	2043590	-21	kworker/u8:0+events_unbound	10:36:16	3
1908632	99	40	37,2	cyclictest	2090971	-21	kworker/u8:1+events_unbound	10:34:47	3
1908629	99	39	35,3	cyclictest	2215230	-21	gpgv	12:05:01	2
1908627	99	39	33,4	cyclictest	2225919	-21	latency_hist	12:15:01	1
1908627	99	39	33,4	cyclictest	2017350	-21	latency_hist	08:55:01	1
1908623	99	39	32,5	cyclictest	335557	-21	systemd-journal	09:10:01	0
1908623	99	38	33,3	cyclictest	509	-21	rs:main		0
1908632	99	37	34,2	cyclictest	2121968	-21	kworker/u8:4+events_unbound	11:57:14	3
1908632	99	37	34,2	cyclictest	2121968	-21	kworker/u8:4+events_unbound	11:33:15	3
1908632	99	37	34,2	cyclictest	2106275	-21	kworker/u8:2+events_unbound	10:29:16	3
1908632	99	36	32,3	cyclictest	2090971	-21	kworker/u8:1+events_unbound	10:24:44	3
1908627	99	36	31,3	cyclictest	2209665	-21	cat	12:00:01	1
1908632	99	35	32,2	cyclictest	2043590	-21	kworker/u8:0+flush-259:0	10:10:24	3
1908632	99	34	31,2	cyclictest	2121968	-21	kworker/u8:4+events_unbound	11:20:13	3
1908632	99	34	31,2	cyclictest	2090971	-21	kworker/u8:1+events_unbound	10:15:13	3
1908632	99	34	31,2	cyclictest	2043590	-21	kworker/u8:0+events_unbound	11:02:16	3
1908632	99	34	31,2	cyclictest	2043590	-21	kworker/u8:0+events_unbound	11:02:16	3
1908632	99	34	30,3	cyclictest	2043590	-21	kworker/u8:0+events_unbound	10:50:20	3
1908632	99	34	30,3	cyclictest	1934838	-21	kworker/u8:1+events_unbound	07:53:15	3
1908632	99	33	30,2	cyclictest	1934838	-21	kworker/u8:1+events_unbound	08:24:14	3
1908632	99	33	30,2	cyclictest	1864138	-21	kworker/u8:1+events_unbound	07:10:23	3
1908632	99	33	27,4	cyclictest	2178528	-21	latency_hist	11:30:01	3
1908629	99	33	29,3	cyclictest	335557	-21	systemd-journal	09:20:00	2
1908623	99	33	30,2	cyclictest	2121968	-21	kworker/u8:4+events_unbound	11:45:00	0
1908632	99	32	28,3	cyclictest	2241483	-21	kworker/u8:2+events_unbound	12:32:15	3
1908632	99	32	27,3	cyclictest	2043590	-21	kworker/u8:0+events_unbound	09:20:13	3
1908627	99	32	26,5	cyclictest	1929250	-21	apt-get	07:30:01	1
1908623	99	32	26,4	cyclictest	2121741	-21	latency_hist	10:35:01	0
1908623	99	32	25,4	cyclictest	2090746	-21	latency_hist	10:05:01	0
1908632	99	31	28,2	cyclictest	1986428	-21	kworker/u8:2+events_unbound	08:49:23	3
1908632	99	31	26,2	cyclictest	2173062	-21	kworker/u8:2+events_unbound	11:45:22	3
1908623	99	31	27,3	cyclictest	2220754	-21	kworker/u8:0+flush-259:0	12:10:15	0
1908623	99	31	25,4	cyclictest	1950312	-21	latency_hist	07:50:01	0
1908632	99	30	27,2	cyclictest	2230868	-21	kworker/u8:3+events_unbound	12:28:15	3
1908632	99	30	27,2	cyclictest	1986428	-21	kworker/u8:2+events_unbound	08:25:16	3
1908632	99	30	26,3	cyclictest	1986428	-21	kworker/u8:2+events_unbound	08:35:22	3
1908632	99	30	26,3	cyclictest	1986428	-21	kworker/u8:2+events_unbound	08:35:22	3
1908632	99	30	23,5	cyclictest	2080171	-21	cp	09:55:01	3
1908629	99	30	23,5	cyclictest	1996684	-21	latency_hist	08:35:00	2
1908627	99	30	25,3	cyclictest	335557	-21	systemd-journal	10:06:15	1
1908627	99	30	24,4	cyclictest	2147602	-21	latency_hist	11:00:01	1
1908632	99	29	26,2	cyclictest	1893197	-21	kworker/u8:4+events_unbound	07:55:23	3
1908623	99	29	25,3	cyclictest	1934838	-21	kworker/u8:1+events_unbound	08:40:15	0
1908623	99	29	25,3	cyclictest	1934838	-21	kworker/u8:1+events_unbound	08:40:15	0
1908632	99	28	24,3	cyclictest	1986428	-21	kworker/u8:2+events_unbound	09:35:04	3
1908632	99	28	24,3	cyclictest	1986428	-21	kworker/u8:2+events_unbound	09:30:18	3
1908623	99	28	25,2	cyclictest	2209355	-21	kworker/u8:1+events_unbound	12:15:15	0
1908623	99	28	22,4	cyclictest	335557	-21	systemd-journal	12:00:14	0
1908632	99	27	24,2	cyclictest	2121968	-21	kworker/u8:4+flush-259:0	12:05:06	3
1908632	99	27	24,2	cyclictest	2059523	-21	kworker/u8:3+events_unbound	09:43:15	3
1908632	99	27	24,2	cyclictest	2007044	-21	kworker/u8:3+events_unbound	09:15:13	3
1908629	99	27	22,3	cyclictest	2137262	-21	latency_hist	10:50:01	2
1908623	99	27	23,3	cyclictest	1893197	-21	kworker/u8:4+events_unbound	07:50:15	0
1908623	99	27	21,4	cyclictest	335557	-21	systemd-journal	08:45:14	0
1908623	99	27	20,5	cyclictest	335557	-21	systemd-journal	07:35:00	0
1908623	99	27	20,5	cyclictest	2182842	-21	ntpq	11:30:20	0
1908632	99	26	23,2	cyclictest	2220754	-21	kworker/u8:0+events_unbound	12:10:12	3
1908632	99	26	23,2	cyclictest	2059523	-21	kworker/u8:3+events_unbound	10:05:17	3
1908632	99	26	23,2	cyclictest	1986428	-21	kworker/u8:2+events_unbound	09:00:14	3
1908627	99	26	20,4	cyclictest	2236307	-21	latency_hist	12:25:01	1
1908623	99	26	23,2	cyclictest	2059523	-21	kworker/u8:3+events_unbound	09:45:16	0
1908632	99	25	22,2	cyclictest	2209355	-21	kworker/u8:1+events_unbound	12:35:28	3
1908632	99	25	22,2	cyclictest	1893197	-21	kworker/u8:4+events_unbound	08:08:15	3
1908632	99	25	21,3	cyclictest	2085582	-21	kworker/u8:2+events_unbound	10:00:14	3
1908627	99	25	21,3	cyclictest	1893197	-21	kworker/u8:4+flush-259:0	08:14:59	1
1908623	99	25	21,3	cyclictest	2022593	-21	kworker/u8:0+flush-259:0	09:04:24	0
1908623	99	25	20,4	cyclictest	2230868	-21	kworker/u8:3+events_unbound	12:27:16	0
1908632	99	24	21,2	cyclictest	2209355	-21	kworker/u8:1+events_unbound	12:15:23	3
1908632	99	24	21,2	cyclictest	1934838	-21	kworker/u8:1+events_unbound	08:41:08	3
1908632	99	24	21,2	cyclictest	1934838	-21	kworker/u8:1+events_unbound	08:41:08	3
1908629	99	24	18,4	cyclictest	335557	-21	systemd-journal	09:25:01	2
1908629	99	24	18,4	cyclictest	2007020	-21	latency_hist	08:45:01	2
1908629	99	24	18,4	cyclictest	2007020	-21	latency_hist	08:45:00	2
1908627	99	24	18,4	cyclictest	2059055	-21	cp	09:35:00	1
1908627	99	24	10,13	cyclictest	2079988	-21	apt-get	09:55:01	1
1908629	99	23	20,2	cyclictest	2215768	-21	sshd	12:05:04	2
1908629	99	23	18,3	cyclictest	335557	-21	systemd-journal	08:26:15	2
1908627	99	23	18,3	cyclictest	1986640	-21	/usr/sbin/munin	08:25:13	1
1908627	99	23	16,5	cyclictest	2011269	-21	ntpq	08:45:22	1
1908623	99	23	20,2	cyclictest	2168225	-21	idleruntime-cro	11:20:00	0
1908623	99	23	19,3	cyclictest	2080606	-21	base64	09:55:01	0
1908623	99	23	19,3	cyclictest	2043590	-21	kworker/u8:0+flush-259:0	10:40:15	0
1908623	99	23	18,4	cyclictest	1914053	-21	apt-get	07:15:11	0
1908623	99	23	17,4	cyclictest	2043365	-21	latency_hist	09:20:01	0
1908627	99	22	16,4	cyclictest	2209355	-21	kworker/u8:1+flush-259:0	12:15:21	1
1908623	99	22	18,3	cyclictest	2043590	-21	kworker/u8:0+events_unbound	10:49:16	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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