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 Sat May 23, 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
3810092	99	58	52,4	cyclictest	3986476	-21	getprofile	21:57:45	3
3810083	99	42	36,4	cyclictest	3809982	-21	latency_hist	19:10:01	1
3810078	99	42	38,3	cyclictest	4060419	-21	kworker/u8:0+events_unbound	23:30:21	0
3810088	99	41	35,4	cyclictest	4102056	-21	latency_hist	23:50:00	2
3810092	99	40	34,4	cyclictest	4039626	-21	latency_hist	22:50:00	3
3810083	99	40	36,3	cyclictest	335557	-21	systemd-journal	21:58:10	1
3810078	99	39	36,2	cyclictest	4034440	-21	kworker/u8:5+events_unbound	23:05:20	0
3810092	99	38	32,4	cyclictest	3949590	-21	latency_hist	21:25:01	3
3810078	99	38	35,2	cyclictest	3949607	-21	kworker/u8:0+events_unbound	21:45:22	0
3810078	99	37	34,2	cyclictest	3992426	-21	kworker/u8:2+flush-259:0	23:40:20	0
3810078	99	37	34,2	cyclictest	3804833	-21	kworker/u8:4+events_unbound	19:40:21	0
3810078	99	36	33,2	cyclictest	3997819	-21	kworker/u8:3+flush-259:0	22:10:23	0
3810078	99	36	33,2	cyclictest	3850428	-21	kworker/u8:2+flush-259:0	19:55:24	0
3810078	99	36	32,3	cyclictest	3992426	-21	kworker/u8:2+flush-259:0	23:25:20	0
3810078	99	36	32,3	cyclictest	3986566	-21	kworker/u8:2+events_unbound	21:58:02	0
3810078	99	36	31,3	cyclictest	4112555	-21	/usr/sbin/munin	00:00:24	0
3810078	99	35	32,2	cyclictest	4086801	-21	kworker/u8:4+events_unbound	00:15:15	0
3810078	99	35	32,2	cyclictest	3949607	-21	kworker/u8:0+events_unbound	22:35:18	0
3810078	99	35	31,3	cyclictest	3959935	-21	gpgv	21:35:01	0
3810078	99	35	31,3	cyclictest	3804833	-21	kworker/u8:4+flush-259:0	19:45:18	0
3810092	99	34	30,3	cyclictest	3924072	-21	kworker/u8:4+events_unbound	21:05:21	3
3810083	99	34	30,3	cyclictest	335557	-21	systemd-journal	21:36:07	1
3810083	99	34	29,4	cyclictest	3991524	-21	ntpq	22:00:22	1
3810078	99	34	31,2	cyclictest	3992426	-21	kworker/u8:2+flush-259:0	23:35:22	0
3810078	99	34	31,2	cyclictest	3924072	-21	kworker/u8:4+flush-259:0	21:20:23	0
3810078	99	34	31,2	cyclictest	3877273	-21	kworker/u8:3+events_unbound	20:15:21	0
3810078	99	34	30,3	cyclictest	3918910	-21	kworker/u8:2+flush-259:0	21:00:15	0
3810078	99	34	30,3	cyclictest	3799627	-21	kworker/u8:2+events_unbound	19:30:14	0
3810078	99	34	30,3	cyclictest	3789757	-21	kworker/u8:3+events_unbound	19:10:22	0
3810078	99	33	30,2	cyclictest	4102284	-21	kworker/u8:3+events_unbound	00:20:24	0
3810078	99	33	30,2	cyclictest	4086801	-21	kworker/u8:4+flush-259:0	23:55:20	0
3810078	99	33	30,2	cyclictest	3855987	-21	kworker/u8:0+events_unbound	20:10:21	0
3810092	99	31	27,3	cyclictest	3789757	-21	kworker/u8:3+flush-259:0	19:15:25	3
3810078	99	31	28,2	cyclictest	4143157	-21	kworker/u8:0+events_unbound	00:30:22	0
3810078	99	31	28,2	cyclictest	4112542	-21	kworker/u8:2+flush-259:0	00:05:22	0
3810078	99	31	28,2	cyclictest	4060419	-21	kworker/u8:0+events_unbound	23:45:22	0
3810078	99	31	28,2	cyclictest	3924072	-21	kworker/u8:4+events_unbound	21:11:16	0
3810078	99	31	28,2	cyclictest	3789757	-21	kworker/u8:3+events_unbound	19:20:19	0
3810078	99	31	27,3	cyclictest	3892748	-21	kworker/u8:1+events_unbound	20:40:15	0
3810088	99	30	26,3	cyclictest	4044833	-21	kworker/u8:3+flush-259:0	23:00:25	2
3810088	99	30	24,4	cyclictest	3908409	-21	diskstats	20:45:13	2
3810083	99	30	23,5	cyclictest	4038785	-21	ntpq	22:45:21	1
3810083	99	30	23,5	cyclictest	4002757	-21	latency_hist	22:15:01	1
3810078	99	30	27,2	cyclictest	3992426	-21	kworker/u8:2+events_unbound	23:15:15	0
3810078	99	30	27,2	cyclictest	3867293	-21	kworker/u8:2+events_unbound	20:25:18	0
3810078	99	30	26,3	cyclictest	3882495	-21	apt-get	20:20:08	0
3810078	99	30	25,4	cyclictest	3861788	-21	kworker/u8:4+events_unbound	20:05:20	0
3810078	99	30	24,4	cyclictest	3825693	-21	/usr/sbin/munin	19:25:13	0
3810088	99	29	25,3	cyclictest	3887374	-21	kworker/u8:0+events_unbound	20:50:32	2
3810083	99	29	25,3	cyclictest	507	-21	in:imuxsock	21:35:00	1
3810078	99	29	26,2	cyclictest	3992426	-21	kworker/u8:2+flush-259:0	22:51:31	0
3810078	99	29	26,2	cyclictest	3949607	-21	kworker/u8:0+events_unbound	22:00:15	0
3810078	99	29	26,2	cyclictest	3789757	-21	kworker/u8:3+events_unbound	19:15:21	0
3810092	99	28	23,3	cyclictest	4112542	-21	kworker/u8:2+events_unbound	00:10:17	3
3810088	99	28	23,4	cyclictest	3865842	-21	ntpq	20:00:21	2
3810088	99	28	23,3	cyclictest	4008448	-21	base64	22:20:00	2
3810083	99	28	23,3	cyclictest	335557	-21	systemd-journal	20:51:24	1
3810078	99	28	24,3	cyclictest	3892748	-21	kworker/u8:1+events_unbound	20:45:22	0
3810092	99	27	22,3	cyclictest	3892748	-21	kworker/u8:1+flush-259:0	20:40:21	3
3810092	99	27	21,4	cyclictest	4102483	-21	diskstats	23:50:15	3
3810092	99	27	21,4	cyclictest	3877045	-21	latency_hist	20:15:00	3
3810088	99	27	23,3	cyclictest	4143157	-21	kworker/u8:0+flush-259:0	00:30:00	2
3810083	99	27	23,3	cyclictest	509	-21	rs:main		1
3810078	99	27	24,2	cyclictest	3992426	-21	kworker/u8:2+events_unbound	22:25:14	0
3810078	99	27	24,2	cyclictest	3992426	-21	kworker/u8:2+events_unbound	22:15:22	0
3810078	99	27	24,2	cyclictest	3825681	-21	kworker/u8:1+events_unbound	20:01:09	0
3810078	99	27	23,3	cyclictest	3959951	-21	kworker/u8:1+flush-259:0	21:55:01	0
3810078	99	27	20,6	cyclictest	3840071	-21	ntpq	19:35:20	0
3810092	99	26	22,3	cyclictest	4013596	-21	kworker/u8:3+events_unbound	22:37:47	3
3810092	99	26	21,4	cyclictest	3877273	-21	kworker/u8:3+flush-259:0	20:35:13	3
3810088	99	26	22,3	cyclictest	3789757	-21	kworker/u8:3+flush-259:0	19:10:16	2
3810088	99	26	20,4	cyclictest	4050086	-21	latency_hist	23:00:00	2
3810078	99	26	23,2	cyclictest	3959951	-21	kworker/u8:1+flush-259:0	22:05:19	0
3810078	99	26	22,3	cyclictest	3850428	-21	kworker/u8:2+events_unbound	19:50:11	0
3810092	99	25	22,2	cyclictest	3892748	-21	kworker/u8:1+events_unbound	20:30:18	3
3810092	99	25	21,3	cyclictest	3825681	-21	kworker/u8:1+events_unbound	20:05:15	3
3810092	99	25	21,2	cyclictest	3846362	-21	apt-get	19:45:10	3
3810088	99	25	19,4	cyclictest	3856372	-21	latency_hist	19:55:01	2
3810088	99	25	19,4	cyclictest	335557	-21	systemd-journal	21:30:00	2
3810083	99	25	21,3	cyclictest	335557	-21	systemd-journal	22:32:07	1
3810083	99	25	18,5	cyclictest	4060551	-21	cat	23:10:00	1
3810078	99	25	22,2	cyclictest	4061042	-21	kworker/u8:1+events_unbound	23:50:23	0
3810078	99	25	22,2	cyclictest	3877273	-21	kworker/u8:3+events_unbound	21:15:20	0
3810078	99	25	21,3	cyclictest	3949852	-21	apt-get	21:25:10	0
3810078	99	25	19,5	cyclictest	3970697	-21	latency_hist	21:45:01	0
3810092	99	24	21,2	cyclictest	3892748	-21	kworker/u8:1+events_unbound	20:45:16	3
3810092	99	24	20,3	cyclictest	3992426	-21	kworker/u8:2+events_unbound	22:10:14	3
3810092	99	24	20,3	cyclictest	3949607	-21	kworker/u8:0+flush-259:0	22:30:12	3
3810092	99	24	19,3	cyclictest	4143157	-21	kworker/u8:0+events_unbound	00:35:15	3
3810083	99	24	19,4	cyclictest	335557	-21	systemd-journal	21:26:07	1
3810083	99	24	19,4	cyclictest	335557	-21	systemd-journal	21:06:07	1
3810083	99	24	17,6	cyclictest	335557	-21	systemd-journal	19:55:01	1
3810078	99	24	21,2	cyclictest	4029462	-21	kworker/u8:1+flush-259:0	22:55:25	0
3810078	99	24	21,2	cyclictest	3949607	-21	kworker/u8:0+flush-259:0	22:20:26	0
3810078	99	24	19,4	cyclictest	3992426	-21	kworker/u8:2+flush-259:0	22:31:23	0
3810092	99	23	20,2	cyclictest	3804833	-21	kworker/u8:4+flush-259:0	19:30:05	3
3810092	99	23	19,3	cyclictest	4102284	-21	kworker/u8:3+flush-259:0	00:20:13	3
3810083	99	23	20,2	cyclictest	4013503	-21	kworker/u8:1+flush-259:0	22:25:00	1
3810083	99	23	17,4	cyclictest	4076251	-21	latency_hist	23:25:01	1
3810078	99	23	20,2	cyclictest	3992426	-21	kworker/u8:2+events_unbound	22:45:18	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