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 #b, slot #5

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, lowest P state: performance
Compare latency of primary with shadow system

Characteristics of the 100 highest latencies:

System rackbslot5s.osadl.org (updated Wed Aug 05, 2026 12:44:44)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
888711	99	51	36,11	cyclictest	12	1	ktimers/0	12:05:11	0
888711	99	47	41,4	cyclictest	955808	-21	kworker/u8:1+events_unbound	12:33:45	0
888724	99	45	38,4	cyclictest	904958	-21	grep	09:10:01	3
888716	99	45	15,8	cyclictest	23	1	ktimers/1	12:30:14	1
888716	99	45	14,4	cyclictest	0	-21	swapper/1	09:05:02	1
888724	99	44	35,5	cyclictest	949164	-21	audit_send_reply	11:40:00	3
888716	99	44	16,3	cyclictest	0	-21	swapper/1	11:40:17	1
888716	99	44	15,3	cyclictest	0	-21	swapper/1	10:59:34	1
888716	99	44	15,3	cyclictest	0	-21	swapper/1	10:59:34	1
888711	99	44	37,5	cyclictest	898854	-21	kworker/u8:2+events_unbound	08:23:08	0
888711	99	44	37,5	cyclictest	898854	-21	kworker/u8:2+events_unbound	08:23:07	0
888716	99	43	35,5	cyclictest	898475	-21	sendmail	08:20:00	1
888716	99	43	14,3	cyclictest	0	-21	swapper/1	11:50:19	1
888724	99	42	35,4	cyclictest	923854	-21	munin-plugin-st	10:30:00	3
888711	99	41	35,4	cyclictest	955808	-21	kworker/u8:1+events_unbound	12:18:43	0
888711	99	41	34,4	cyclictest	894277	-21	audit_send_reply	07:50:01	0
888724	99	40	30,7	cyclictest	969723	-21	munin-plugin-st	12:39:59	3
888724	99	40	20,12	cyclictest	946970	-21	kworker/u8:1+events_unbound	11:42:12	3
888716	99	40	33,4	cyclictest	900973	-21	munin-plugin-st	08:40:02	1
888716	99	40	16,3	cyclictest	0	-21	swapper/1	12:05:23	1
888716	99	40	13,4	cyclictest	940218	-21	latency_hist	11:15:02	1
888716	99	40	1,14	cyclictest	913412	-21	awk	10:00:01	1
888724	99	39	33,4	cyclictest	892659	-21	kworker/u8:1+events_unbound	07:48:03	3
888724	99	39	32,3	cyclictest	0	-21	swapper/3	11:20:16	3
888716	99	39	30,5	cyclictest	0	-21	swapper/1	12:20:00	1
888716	99	39	28,7	cyclictest	964152	-21	grep	12:20:24	1
888716	99	39	12,5	cyclictest	0	-21	swapper/1	11:00:25	1
888716	99	39	12,3	cyclictest	0	-21	swapper/1	09:50:01	1
888711	99	39	12,5	cyclictest	13	1	rcu_preempt	12:10:11	0
888716	99	38	2,13	cyclictest	901595	-21	cron	08:45:01	1
888711	99	38	31,4	cyclictest	945547	-21	auditctl	11:30:01	0
888724	99	37	29,4	cyclictest	0	-21	swapper/3	11:00:15	3
888724	99	37	1,6	cyclictest	0	-21	swapper/3	10:15:12	3
888716	99	37	26,8	cyclictest	920429	-21	munin-run	10:20:00	1
888716	99	37	15,4	cyclictest	909346	-21	sh	09:45:00	1
888711	99	37	23,12	cyclictest	915260	-21	kworker/u8:2+events_unbound	10:15:22	0
888719	99	36	29,5	cyclictest	897520	-21	kworker/u8:0+events_unbound	08:13:07	2
888716	99	36	10,5	cyclictest	904961	-21	idleruntime-cro	09:10:02	1
888711	99	36	30,4	cyclictest	934297	-21	getprofile	10:59:05	0
888711	99	36	30,4	cyclictest	934297	-21	getprofile	10:59:05	0
888711	99	36	16,12	cyclictest	956208	-21	latency_hist	12:00:01	0
888719	99	35	28,3	cyclictest	0	-21	swapper/2	09:55:01	2
888716	99	35	27,4	cyclictest	0	-21	swapper/1	12:38:46	1
888716	99	35	14,3	cyclictest	0	-21	swapper/1	08:35:01	1
888711	99	35	23,8	cyclictest	965853	-21	grep	12:25:24	0
888724	99	34	26,4	cyclictest	0	-21	swapper/3	10:13:22	3
888724	99	34	26,4	cyclictest	0	-21	swapper/3	09:25:00	3
888724	99	34	24,5	cyclictest	0	-21	swapper/3	07:40:00	3
888716	99	34	26,4	cyclictest	0	-21	swapper/1	10:05:00	1
888724	99	33	26,4	cyclictest	438	-21	cron	12:00:01	3
888724	99	33	23,7	cyclictest	904327	-21	auditctl	09:05:01	3
888724	99	33	17,6	cyclictest	901571	-21	kworker/u8:1+events_unbound	08:48:54	3
888724	99	33	17,5	cyclictest	920197	-21	kworker/u8:3+events_unbound	10:43:33	3
888719	99	33	27,4	cyclictest	912977	-21	unixbench_singl	09:55:29	2
888719	99	33	26,3	cyclictest	0	-21	swapper/2	10:25:15	2
888716	99	33	22,7	cyclictest	0	-21	swapper/1	09:15:00	1
888711	99	33	25,5	cyclictest	0	-21	swapper/0	12:05:00	0
888711	99	33	0,5	cyclictest	13	1	rcu_preempt	09:55:13	0
888724	99	32	23,4	cyclictest	0	-21	swapper/3	08:20:00	3
888719	99	32	22,6	cyclictest	957301	-21	grep	12:00:29	2
888719	99	32	22,6	cyclictest	0	-21	swapper/2	11:55:00	2
888716	99	32	24,5	cyclictest	927250	-21	munin-plugin-st	10:40:00	1
888716	99	32	23,4	cyclictest	0	-21	swapper/1	10:15:00	1
888711	99	32	24,4	cyclictest	908732	-21	sendmail	09:40:01	0
888711	99	32	23,5	cyclictest	0	-21	swapper/0	11:33:32	0
888711	99	32	21,7	cyclictest	0	-21	swapper/0	07:15:01	0
888724	99	31	25,4	cyclictest	938207	-21	kworker/u8:0+events_unbound	11:08:32	3
888724	99	31	21,7	cyclictest	964619	-21	audit_send_reply	12:25:01	3
888719	99	31	24,4	cyclictest	894275	-21	sh	07:50:00	2
888719	99	31	22,6	cyclictest	0	-21	swapper/2	11:20:00	2
888719	99	31	21,7	cyclictest	951290	-21	tune2fs	11:45:16	2
888719	99	31	20,6	cyclictest	0	-21	swapper/2	08:10:02	2
888716	99	31	22,5	cyclictest	0	-21	swapper/1	11:30:16	1
888716	99	31	21,7	cyclictest	0	-21	swapper/1	08:30:00	1
888711	99	31	24,5	cyclictest	948998	-21	kworker/u8:0+events_unbound	12:22:37	0
888724	99	30	23,5	cyclictest	930628	-21	kworker/u8:1+events_unbound	10:59:18	3
888724	99	30	23,5	cyclictest	930628	-21	kworker/u8:1+events_unbound	10:59:17	3
888724	99	30	23,4	cyclictest	0	-21	swapper/3	12:25:24	3
888724	99	30	22,4	cyclictest	0	-21	swapper/3	10:50:27	3
888724	99	30	20,7	cyclictest	438	-21	cron	12:20:01	3
888724	99	30	16,5	cyclictest	920197	-21	kworker/u8:3+events_unbound	10:24:16	3
888724	99	30	15,6	cyclictest	909059	-21	kworker/u8:0+events_unbound	09:42:45	3
888719	99	30	9,3	cyclictest	969726	-21	cron	12:39:59	2
888719	99	30	2,4	cyclictest	13	1	rcu_preempt	10:15:13	2
888719	99	30	22,5	cyclictest	0	-21	swapper/2	08:00:02	2
888719	99	30	22,4	cyclictest	0	-21	swapper/2	10:00:26	2
888716	99	30	18,7	cyclictest	0	-21	swapper/1	07:20:01	1
888711	99	30	20,7	cyclictest	135	50	irq/42-30be0000.ethernet	10:30:14	0
888711	99	30	19,6	cyclictest	0	-21	swapper/0	08:00:01	0
888711	99	30	18,8	cyclictest	949194	-21	basename	11:40:00	0
888711	99	30	18,5	cyclictest	895715	-21	kworker/u8:2+events_unbound	08:07:55	0
888724	99	29	9,6	cyclictest	890892	-21	kworker/u8:2+events_unbound	07:26:46	3
888724	99	29	23,4	cyclictest	955808	-21	kworker/u8:1+events_unbound	12:12:42	3
888724	99	29	21,4	cyclictest	0	-21	swapper/3	10:35:28	3
888724	99	29	19,7	cyclictest	956300	-21	/usr/sbin/munin	12:00:28	3
888724	99	29	15,6	cyclictest	13	1	rcu_preempt	08:10:01	3
888719	99	29	8,14	cyclictest	941939	-21	kworker/u8:2+events_unbound	11:28:55	2
888719	99	29	20,6	cyclictest	966686	-21	fschecks_count	12:30:16	2
888719	99	29	20,6	cyclictest	0	-21	swapper/2	10:40:00	2
888716	99	29	22,4	cyclictest	891765	-21	kthreadd	07:30:00	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


Access: public		Short link to this page
This page was last modified on 2019-05-28 - 00:17