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 Thu Aug 06, 2026 12:44:05)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3836452	99	49	46,2	cyclictest	3846485	-21	kworker/u8:4+flush-259:0	08:20:00	3
3836442	99	46	40,4	cyclictest	335557	-21	systemd-journal	10:30:28	0
3836446	99	44	40,3	cyclictest	3872316	-21	kworker/u8:2+flush-259:0	08:25:01	1
3836446	99	44	36,6	cyclictest	4069904	-21	latency_hist	10:55:01	1
3836450	99	42	35,5	cyclictest	4054439	-21	latency_hist	10:40:01	2
3836450	99	40	33,5	cyclictest	335557	-21	systemd-journal	08:55:01	2
3836450	99	39	33,4	cyclictest	3934814	-21	kworker/u8:0+flush-259:0	08:45:21	2
3836446	99	38	34,3	cyclictest	4043451	-21	kworker/u8:0+flush-259:0	10:40:16	1
3836446	99	37	31,4	cyclictest	335557	-21	systemd-journal	11:20:48	1
3836442	99	37	30,5	cyclictest	3876992	-21	ntpq	07:45:21	0
3836450	99	36	31,4	cyclictest	4059618	-21	kworker/u8:1+flush-259:0	10:50:19	2
3836446	99	36	30,4	cyclictest	3872316	-21	kworker/u8:2+flush-259:0	08:30:16	1
3836446	99	36	28,6	cyclictest	4131803	-21	latency_hist	11:55:01	1
3836442	99	36	28,5	cyclictest	335557	-21	systemd-journal	10:45:34	0
3836452	99	35	32,2	cyclictest	4075309	-21	kworker/u8:3+events_unbound	11:45:01	3
3836452	99	33	30,2	cyclictest	3826309	-21	kworker/u8:1+flush-259:0	07:30:23	3
3836442	99	33	28,3	cyclictest	3872316	-21	kworker/u8:2+flush-259:0	08:25:15	0
3836442	99	33	27,4	cyclictest	335557	-21	systemd-journal	09:49:59	0
3836452	99	32	28,3	cyclictest	3996799	-21	kworker/u8:2+events_unbound	09:57:50	3
3836452	99	32	28,3	cyclictest	3986426	-21	kworker/u8:1+events_unbound	09:36:50	3
3836452	99	32	28,3	cyclictest	3939973	-21	kworker/u8:2+flush-259:0	09:20:25	3
3836452	99	32	27,4	cyclictest	335557	-21	systemd-journal	10:13:48	3
3836452	99	32	26,4	cyclictest	3950616	-21	latency_hist	09:00:00	3
3836446	99	32	29,2	cyclictest	3945170	-21	kworker/u8:3+events_unbound	09:00:19	1
3836446	99	32	27,3	cyclictest	4085409	-21	kworker/u8:0+flush-259:0	12:25:17	1
3836442	99	32	15,4	cyclictest	4152672	-21	/usr/sbin/munin	12:15:12	0
3836452	99	31	26,3	cyclictest	3846485	-21	kworker/u8:4+events_unbound	07:19:48	3
3836450	99	30	24,4	cyclictest	3986426	-21	kworker/u8:1+flush-259:0	09:35:15	2
3836442	99	30	26,3	cyclictest	3945170	-21	kworker/u8:3+flush-259:0	08:55:00	0
3836452	99	29	25,3	cyclictest	4075309	-21	kworker/u8:3+events_unbound	11:13:50	3
3836452	99	29	25,3	cyclictest	3872316	-21	kworker/u8:2+flush-259:0	08:10:14	3
3836446	99	29	24,3	cyclictest	3888390	-21	/usr/sbin/munin	08:00:14	1
3836452	99	28	23,3	cyclictest	4173155	-21	apt-get	12:35:02	3
3836446	99	28	22,4	cyclictest	4043637	-21	apt-get	10:30:00	1
3836446	99	28	22,4	cyclictest	335557	-21	systemd-journal	07:20:00	1
3836442	99	28	22,4	cyclictest	335557	-21	systemd-journal	12:35:48	0
3836452	99	27	23,3	cyclictest	4043451	-21	kworker/u8:0+events_unbound	10:43:50	3
3836452	99	27	23,3	cyclictest	3939973	-21	kworker/u8:2+events_unbound	09:11:27	3
3836450	99	27	21,4	cyclictest	3919163	-21	apt-get	08:30:00	2
3836442	99	27	22,4	cyclictest	335557	-21	systemd-journal	12:02:48	0
3836442	99	27	22,3	cyclictest	3981903	-21	apt-get	09:30:11	0
3836442	99	27	22,3	cyclictest	335557	-21	systemd-journal	10:37:48	0
3836452	99	26	23,2	cyclictest	4147327	-21	kworker/u8:1+events_unbound	12:30:02	3
3836452	99	26	22,2	cyclictest	3996799	-21	kworker/u8:2+events_unbound	10:33:49	3
3836450	99	26	20,4	cyclictest	4090569	-21	latency_hist	11:15:01	2
3836450	99	26	19,5	cyclictest	335557	-21	systemd-journal	10:20:00	2
3836446	99	26	23,2	cyclictest	3939973	-21	kworker/u8:2+flush-259:0	09:00:00	1
3836446	99	26	22,3	cyclictest	3872316	-21	kworker/u8:2+flush-259:0	08:25:20	1
3836446	99	26	21,3	cyclictest	3872316	-21	kworker/u8:2+flush-259:0	08:40:16	1
3836442	99	26	22,3	cyclictest	3893270	-21	kworker/u8:0+events_unbound	08:10:16	0
3836452	99	25	22,2	cyclictest	4126665	-21	kworker/u8:1+events_unbound	11:53:49	3
3836452	99	25	22,2	cyclictest	4059618	-21	kworker/u8:1+events_unbound	10:52:50	3
3836452	99	25	22,2	cyclictest	3996799	-21	kworker/u8:2+flush-259:0	10:15:24	3
3836452	99	25	22,2	cyclictest	3915030	-21	kworker/u8:1+events_unbound	09:04:48	3
3836452	99	25	21,3	cyclictest	4075309	-21	kworker/u8:3+events_unbound	11:05:18	3
3836452	99	25	21,3	cyclictest	3996799	-21	kworker/u8:2+events_unbound	10:00:49	3
3836446	99	25	22,2	cyclictest	3846485	-21	kworker/u8:4+flush-259:0	08:35:29	1
3836446	99	25	21,3	cyclictest	4141801	-21	kworker/u8:2+flush-259:0	12:10:24	1
3836446	99	25	21,3	cyclictest	3939973	-21	kworker/u8:2+flush-259:0	09:25:00	1
3836446	99	25	19,4	cyclictest	335557	-21	systemd-journal	07:47:49	1
3836442	99	25	22,2	cyclictest	3841820	-21	kworker/u8:2+events_unbound	07:15:19	0
3836442	99	25	20,4	cyclictest	335557	-21	systemd-journal	12:28:48	0
3836452	99	24	20,3	cyclictest	4085409	-21	kworker/u8:0+events_unbound	12:25:50	3
3836452	99	24	20,3	cyclictest	4085409	-21	kworker/u8:0+events_unbound	11:38:50	3
3836452	99	24	20,3	cyclictest	4085409	-21	kworker/u8:0+events_unbound	11:27:48	3
3836452	99	24	20,3	cyclictest	3996799	-21	kworker/u8:2+events_unbound	10:25:49	3
3836452	99	24	20,3	cyclictest	3872316	-21	kworker/u8:2+events_unbound	08:24:50	3
3836446	99	24	20,3	cyclictest	3826309	-21	kworker/u8:1+events_unbound	07:31:40	1
3836446	99	24	19,4	cyclictest	3939973	-21	kworker/u8:2+flush-259:0	09:15:15	1
3836446	99	24	19,3	cyclictest	509	-21	rs:main		1
3836446	99	24	19,3	cyclictest	4121702	-21	/usr/sbin/munin	11:45:13	1
3836452	99	23	20,2	cyclictest	4059618	-21	kworker/u8:1+events_unbound	10:55:37	3
3836452	99	23	19,3	cyclictest	4147327	-21	kworker/u8:1+flush-259:0	12:15:20	3
3836452	99	23	19,3	cyclictest	3996799	-21	kworker/u8:2+events_unbound	09:50:09	3
3836452	99	23	19,3	cyclictest	3872316	-21	kworker/u8:2+events_unbound	08:25:14	3
3836452	99	23	17,4	cyclictest	4142096	-21	awk	12:05:00	3
3836450	99	23	17,4	cyclictest	4044152	-21	base64	10:30:00	2
3836450	99	23	17,4	cyclictest	4012876	-21	apt-get	10:00:12	2
3836446	99	23	20,2	cyclictest	3939973	-21	kworker/u8:2+events_unbound	09:30:19	1
3836446	99	23	19,3	cyclictest	4075309	-21	kworker/u8:3+flush-259:0	11:30:39	1
3836446	99	23	19,3	cyclictest	3826309	-21	kworker/u8:1+events_unbound	07:24:40	1
3836442	99	23	19,3	cyclictest	3826309	-21	kworker/u8:1+flush-259:0	08:00:17	0
3836442	99	23	17,4	cyclictest	4002172	-21	kworker/u8:1+flush-259:0	09:50:15	0
3836452	99	22	18,3	cyclictest	4095574	-21	kworker/u8:2+events_unbound	11:20:23	3
3836452	99	22	18,3	cyclictest	3939973	-21	kworker/u8:2+events_unbound	09:15:20	3
3836452	99	22	18,3	cyclictest	3872316	-21	kworker/u8:2+events_unbound	08:30:15	3
3836450	99	22	19,2	cyclictest	4126665	-21	kworker/u8:1+flush-259:0	11:50:21	2
3836450	99	22	18,3	cyclictest	3836631	-21	apt-get	07:10:10	2
3836446	99	22	19,2	cyclictest	3872654	-21	cron	07:45:00	1
3836446	99	22	17,3	cyclictest	509	-21	rs:main		1
3836446	99	22	17,3	cyclictest	3981646	-21	munin-plugin-st	09:30:01	1
3836442	99	22	16,4	cyclictest	335557	-21	systemd-journal	09:23:47	0
3836452	99	21	18,2	cyclictest	4126665	-21	kworker/u8:1+events_unbound	11:55:19	3
3836452	99	21	18,2	cyclictest	3996799	-21	kworker/u8:2+events_unbound	10:20:15	3
3836452	99	21	17,3	cyclictest	3939973	-21	kworker/u8:2+flush-259:0	09:10:01	3
3836452	99	21	17,3	cyclictest	3826309	-21	kworker/u8:1+events_unbound	08:02:48	3
3836450	99	21	18,2	cyclictest	4059618	-21	kworker/u8:1+flush-259:0	10:55:21	2
3836450	99	21	18,2	cyclictest	3950638	-21	kworker/u8:0+flush-259:0	09:55:25	2
3836450	99	21	14,5	cyclictest	4080239	-21	latency_hist	11:05:00	2
3836446	99	21	18,2	cyclictest	3934814	-21	kworker/u8:0+events_unbound	08:50:13	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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