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 #0, slot #0

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 r0s0s.osadl.org (updated Tue Dec 23, 2025 12:46:29)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3747206	2	326	319,5	sleep0	0	-21	swapper/0	07:06:33	0
3745892	2	310	280,20	sleep3	0	-21	swapper/3	07:05:15	3
3746054	2	308	282,18	sleep4	0	-21	swapper/4	07:05:24	4
3747369	2	298	279,12	sleep2	0	-21	swapper/2	07:08:52	2
3747368	2	296	274,14	sleep1	0	-21	swapper/1	07:08:51	1
3747363	2	289	270,12	sleep5	0	-21	swapper/5	07:08:47	5
3747317	2	289	270,12	sleep6	0	-21	swapper/6	07:08:08	6
3745346	2	283	263,13	sleep7	0	-21	swapper/7	07:05:03	7
3747927	99	33	30,2	cyclictest	870	-21	snmpd	12:11:31	7
3747927	99	33	30,2	cyclictest	870	-21	snmpd	11:53:48	7
3747927	99	33	30,2	cyclictest	870	-21	snmpd	10:00:29	7
3747927	99	33	29,3	cyclictest	870	-21	snmpd	11:19:47	7
3747927	99	33	29,3	cyclictest	870	-21	snmpd	07:56:39	7
3747925	99	33	0,1	cyclictest	0	-21	swapper/5	07:50:09	5
3747924	99	33	30,2	cyclictest	870	-21	snmpd	08:57:03	4
3747924	99	33	30,2	cyclictest	870	-21	snmpd	08:49:56	4
3747923	99	33	30,2	cyclictest	3822121	-21	cat	09:35:17	3
3747923	99	33	30,2	cyclictest	3817128	-21	cat	09:25:17	3
3747922	99	33	30,2	cyclictest	870	-21	snmpd	11:50:18	2
3747922	99	33	30,2	cyclictest	870	-21	snmpd	11:08:40	2
3747922	99	33	30,2	cyclictest	870	-21	snmpd	11:08:40	2
3747921	99	33	30,2	cyclictest	870	-21	snmpd	12:34:46	1
3747921	99	33	30,2	cyclictest	870	-21	snmpd	11:14:53	1
3747921	99	33	30,2	cyclictest	870	-21	snmpd	11:14:52	1
3747921	99	33	30,2	cyclictest	870	-21	snmpd	07:38:54	1
3747927	99	32	30,1	cyclictest	870	-21	snmpd	12:34:03	7
3747927	99	32	29,2	cyclictest	870	-21	snmpd	12:39:20	7
3747927	99	32	29,2	cyclictest	870	-21	snmpd	07:44:48	7
3747927	99	32	29,2	cyclictest	870	-21	snmpd	07:19:05	7
3747927	99	32	0,31	cyclictest	0	-21	swapper/7	08:28:35	7
3747926	99	32	30,2	cyclictest	870	-21	snmpd	08:38:35	6
3747926	99	32	30,2	cyclictest	870	-21	snmpd	07:18:47	6
3747926	99	32	30,1	cyclictest	896	-21	mta-sts-daemon	09:52:38	6
3747926	99	32	0,31	cyclictest	3817675	-21	ntpq	09:25:28	6
3747926	99	32	0,31	cyclictest	0	-21	swapper/6	11:45:09	6
3747925	99	32	30,2	cyclictest	870	-21	snmpd	12:33:04	5
3747925	99	32	30,2	cyclictest	870	-21	snmpd	09:41:49	5
3747925	99	32	0,32	cyclictest	0	-21	swapper/5	07:39:00	5
3747925	99	32	0,31	cyclictest	0	-21	swapper/5	10:09:53	5
3747924	99	32	30,1	cyclictest	870	-21	snmpd	12:28:13	4
3747924	99	32	30,1	cyclictest	870	-21	snmpd	10:56:28	4
3747924	99	32	29,2	cyclictest	870	-21	snmpd	08:18:28	4
3747924	99	32	0,31	cyclictest	0	-21	swapper/4	11:20:15	4
3747924	99	32	0,31	cyclictest	0	-21	swapper/4	11:00:16	4
3747924	99	32	0,31	cyclictest	0	-21	swapper/4	10:50:37	4
3747924	99	32	0,31	cyclictest	0	-21	swapper/4	08:11:49	4
3747923	99	32	30,2	cyclictest	870	-21	snmpd	08:02:43	3
3747923	99	32	29,2	cyclictest	870	-21	snmpd	11:54:24	3
3747923	99	32	29,2	cyclictest	870	-21	snmpd	08:44:20	3
3747923	99	32	29,2	cyclictest	3761802	-21	cat	07:35:15	3
3747923	99	32	28,3	cyclictest	3771820	-21	cat	07:55:15	3
3747922	99	32	29,2	cyclictest	870	-21	snmpd	10:45:04	2
3747922	99	32	29,2	cyclictest	870	-21	snmpd	08:39:23	2
3747922	99	32	0,31	cyclictest	0	-21	swapper/2	09:18:58	2
3747922	99	32	0,31	cyclictest	0	-21	swapper/2	09:18:58	2
3747921	99	32	30,1	cyclictest	870	-21	snmpd	09:47:53	1
3747921	99	32	30,1	cyclictest	870	-21	snmpd	09:36:10	1
3747921	99	32	30,1	cyclictest	870	-21	snmpd	07:26:39	1
3747921	99	32	30,1	cyclictest	870	-21	snmpd	07:26:39	1
3747921	99	32	30,1	cyclictest	870	-21	snmpd	07:21:05	1
3747921	99	32	29,2	cyclictest	870	-21	snmpd	10:13:05	1
3747921	99	32	29,2	cyclictest	870	-21	snmpd	08:45:20	1
3747921	99	32	29,2	cyclictest	870	-21	snmpd	08:40:59	1
3747921	99	32	28,3	cyclictest	870	-21	snmpd	12:18:25	1
3747921	99	32	0,31	cyclictest	0	-21	swapper/1	11:06:16	1
3747921	99	32	0,31	cyclictest	0	-21	swapper/1	11:06:15	1
3747921	99	32	0,30	cyclictest	0	-21	swapper/1	11:23:01	1
3747921	99	32	0,30	cyclictest	0	-21	swapper/1	08:25:25	1
3747920	99	32	30,2	cyclictest	870	-21	snmpd	09:00:36	0
3747920	99	32	30,2	cyclictest	870	-21	snmpd	08:20:25	0
3747920	99	32	30,2	cyclictest	870	-21	snmpd	07:16:50	0
3747920	99	32	30,2	cyclictest	3910269	-21	cat	12:30:16	0
3747920	99	32	29,2	cyclictest	870	-21	snmpd	07:27:18	0
3747920	99	32	29,2	cyclictest	870	-21	snmpd	07:27:18	0
3747927	99	31	30,1	cyclictest	870	-21	snmpd	09:52:26	7
3747927	99	31	30,1	cyclictest	870	-21	snmpd	08:15:04	7
3747927	99	31	29,1	cyclictest	870	-21	snmpd	11:58:05	7
3747927	99	31	29,1	cyclictest	870	-21	snmpd	10:52:40	7
3747927	99	31	28,2	cyclictest	870	-21	snmpd	12:01:24	7
3747927	99	31	28,2	cyclictest	870	-21	snmpd	10:22:09	7
3747927	99	31	27,3	cyclictest	870	-21	snmpd	12:16:58	7
3747927	99	31	27,3	cyclictest	870	-21	snmpd	09:06:53	7
3747927	99	31	0,30	cyclictest	0	-21	swapper/7	09:45:13	7
3747927	99	31	0,30	cyclictest	0	-21	swapper/7	07:21:08	7
3747927	99	31	0,30	cyclictest	0	-21	swapper/7	07:11:20	7
3747926	99	31	30,1	cyclictest	870	-21	snmpd	11:22:35	6
3747926	99	31	30,1	cyclictest	870	-21	snmpd	10:07:53	6
3747926	99	31	30,1	cyclictest	870	-21	snmpd	08:01:55	6
3747926	99	31	29,2	cyclictest	870	-21	snmpd	08:59:48	6
3747926	99	31	29,2	cyclictest	3867452	-21	cat	11:05:14	6
3747926	99	31	29,2	cyclictest	3867452	-21	cat	11:05:13	6
3747926	99	31	0,30	cyclictest	0	-21	swapper/6	12:33:25	6
3747926	99	31	0,30	cyclictest	0	-21	swapper/6	07:14:17	6
3747926	99	31	0,1	cyclictest	0	-21	swapper/6	09:18:40	6
3747926	99	31	0,1	cyclictest	0	-21	swapper/6	09:18:40	6
3747925	99	31	30,1	cyclictest	870	-21	snmpd	11:23:32	5
3747925	99	31	30,1	cyclictest	870	-21	snmpd	08:24:52	5
3747925	99	31	30,1	cyclictest	870	-21	snmpd	07:46:42	5
3747925	99	31	30,1	cyclictest	3788594	-21	kworker/u16:3+flush-8:0	09:05:31	5
3747925	99	31	29,2	cyclictest	870	-21	snmpd	10:48:25	5
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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