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 Mon Jan 12, 2026 00:46:28)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2406384	2	303	265,12	sleep6	0	-21	swapper/6	19:09:22	6
2406384	2	303	265,12	sleep6	0	-21	swapper/6	19:09:21	6
2404751	2	298	275,16	sleep1	0	-21	swapper/1	19:05:15	1
2404751	2	298	275,16	sleep1	0	-21	swapper/1	19:05:14	1
2406134	2	288	269,12	sleep2	0	-21	swapper/2	19:05:48	2
2406134	2	288	269,12	sleep2	0	-21	swapper/2	19:05:48	2
2406202	2	287	266,13	sleep3	0	-21	swapper/3	19:06:45	3
2406202	2	287	266,13	sleep3	0	-21	swapper/3	19:06:44	3
2406167	2	287	268,12	sleep7	0	-21	swapper/7	19:06:17	7
2406167	2	287	268,12	sleep7	0	-21	swapper/7	19:06:16	7
2406121	2	287	267,13	sleep0	0	-21	swapper/0	19:05:38	0
2406121	2	287	267,13	sleep0	0	-21	swapper/0	19:05:37	0
2403987	2	286	266,13	sleep4	0	-21	swapper/4	19:05:02	4
2403987	2	286	266,13	sleep4	0	-21	swapper/4	19:05:01	4
2406107	2	285	265,13	sleep5	0	-21	swapper/5	19:05:35	5
2406107	2	285	265,13	sleep5	0	-21	swapper/5	19:05:35	5
2406431	2	46	28,1	sleep5	0	-21	swapper/5	19:10:01	5
2406431	2	46	28,1	sleep5	0	-21	swapper/5	19:10:00	5
2406908	99	35	30,4	cyclictest	870	-21	snmpd	22:34:50	6
2406908	99	34	29,4	cyclictest	870	-21	snmpd	22:02:52	6
2406903	99	34	30,3	cyclictest	870	-21	snmpd	20:09:38	1
2406908	99	33	30,2	cyclictest	870	-21	snmpd	22:35:11	6
2406908	99	33	29,3	cyclictest	2546745	-21	cat	23:45:14	6
2406908	99	33	0,32	cyclictest	0	-21	swapper/6	20:59:26	6
2406908	99	33	0,30	cyclictest	0	-21	swapper/6	23:09:56	6
2406906	99	33	30,2	cyclictest	870	-21	snmpd	20:25:34	4
2406906	99	33	0,31	cyclictest	0	-21	swapper/4	19:57:20	4
2406903	99	33	31,1	cyclictest	2529548	-21	ntpq	23:10:23	1
2406903	99	33	30,2	cyclictest	870	-21	snmpd	19:12:37	1
2406903	99	33	30,2	cyclictest	870	-21	snmpd	19:12:36	1
2406909	99	32	32,0	cyclictest	0	-21	swapper/7	21:08:07	7
2406909	99	32	31,1	cyclictest	2507896	-21	kworker/7:1+events	22:41:57	7
2406909	99	32	31,1	cyclictest	2409417	-21	kworker/7:1+events	20:09:12	7
2406909	99	32	31,1	cyclictest	2409417	-21	kworker/7:1+events	19:18:44	7
2406909	99	32	30,2	cyclictest	870	-21	snmpd	19:48:15	7
2406909	99	32	30,2	cyclictest	870	-21	snmpd	19:42:19	7
2406909	99	32	30,2	cyclictest	2503913	-21	cat	22:20:14	7
2406909	99	32	30,2	cyclictest	2420762	-21	cat	19:35:14	7
2406908	99	32	30,2	cyclictest	870	-21	snmpd	22:45:25	6
2406908	99	32	30,2	cyclictest	870	-21	snmpd	22:45:25	6
2406908	99	32	30,1	cyclictest	870	-21	snmpd	20:06:16	6
2406908	99	32	29,2	cyclictest	2481103	-21	cat	21:35:16	6
2406908	99	32	0,30	cyclictest	0	-21	swapper/6	23:17:23	6
2406908	99	32	0,30	cyclictest	0	-21	swapper/6	22:08:14	6
2406907	99	32	30,1	cyclictest	870	-21	snmpd	00:36:07	5
2406907	99	32	0,31	cyclictest	0	-21	swapper/5	21:34:21	5
2406907	99	32	0,30	cyclictest	0	-21	swapper/5	22:30:06	5
2406907	99	32	0,30	cyclictest	0	-21	swapper/5	21:13:19	5
2406907	99	32	0,30	cyclictest	0	-21	swapper/5	20:09:05	5
2406907	99	32	0,29	cyclictest	0	-21	swapper/5	19:35:42	5
2406906	99	32	30,2	cyclictest	870	-21	snmpd	21:56:10	4
2406906	99	32	30,1	cyclictest	870	-21	snmpd	21:26:18	4
2406906	99	32	29,2	cyclictest	2549228	-21	cat	23:50:14	4
2406905	99	32	30,1	cyclictest	870	-21	snmpd	22:38:51	3
2406905	99	32	30,1	cyclictest	870	-21	snmpd	21:40:05	3
2406905	99	32	29,2	cyclictest	870	-21	snmpd	23:21:34	3
2406905	99	32	29,2	cyclictest	870	-21	snmpd	22:25:45	3
2406905	99	32	29,2	cyclictest	0	-21	swapper/3	20:32:47	3
2406905	99	32	28,3	cyclictest	870	-21	snmpd	23:40:32	3
2406905	99	32	28,3	cyclictest	870	-21	snmpd	21:52:17	3
2406905	99	32	0,31	cyclictest	0	-21	swapper/3	22:01:29	3
2406904	99	32	30,2	cyclictest	870	-21	snmpd	23:43:01	2
2406904	99	32	30,2	cyclictest	2514172	-21	cat	22:40:14	2
2406903	99	32	30,2	cyclictest	870	-21	snmpd	22:23:33	1
2406903	99	32	29,2	cyclictest	870	-21	snmpd	20:51:44	1
2406903	99	32	0,31	cyclictest	0	-21	swapper/1	22:10:08	1
2406903	99	32	0,31	cyclictest	0	-21	swapper/1	21:30:15	1
2406903	99	32	0,31	cyclictest	0	-21	swapper/1	20:46:32	1
2406902	99	32	31,1	cyclictest	2550615	-21	kworker/u16:0+flush-8:0	00:00:15	0
2406902	99	32	30,2	cyclictest	870	-21	snmpd	22:07:29	0
2406902	99	32	30,2	cyclictest	2544239	-21	cat	23:40:15	0
2406902	99	32	30,2	cyclictest	2451082	-21	cat	20:35:17	0
2406902	99	32	30,1	cyclictest	2455088	-21	kworker/0:0+events	21:40:01	0
2406909	99	31	30,1	cyclictest	2553497	-21	kworker/7:0+events	00:35:13	7
2406909	99	31	30,1	cyclictest	2553497	-21	kworker/7:0+events	00:30:11	7
2406909	99	31	30,1	cyclictest	2553497	-21	kworker/7:0+events	00:25:01	7
2406909	99	31	30,1	cyclictest	2553497	-21	kworker/7:0+events	00:15:13	7
2406909	99	31	30,1	cyclictest	2553497	-21	kworker/7:0+events	00:10:31	7
2406909	99	31	30,1	cyclictest	2553497	-21	kworker/7:0+events	00:05:02	7
2406909	99	31	30,1	cyclictest	2553497	-21	kworker/7:0+events	00:00:01	7
2406909	99	31	30,1	cyclictest	2507896	-21	kworker/7:1+events	23:55:20	7
2406909	99	31	30,1	cyclictest	2507896	-21	kworker/7:1+events	23:52:43	7
2406909	99	31	30,1	cyclictest	2507896	-21	kworker/7:1+events	23:45:17	7
2406909	99	31	30,1	cyclictest	2507896	-21	kworker/7:1+events	23:40:17	7
2406909	99	31	30,1	cyclictest	2507896	-21	kworker/7:1+events	23:35:17	7
2406909	99	31	30,1	cyclictest	2507896	-21	kworker/7:1+events	23:30:04	7
2406909	99	31	30,1	cyclictest	2507896	-21	kworker/7:1+events	23:27:25	7
2406909	99	31	30,1	cyclictest	2507896	-21	kworker/7:1+events	23:20:04	7
2406909	99	31	30,1	cyclictest	2507896	-21	kworker/7:1+events	23:19:57	7
2406909	99	31	30,1	cyclictest	2507896	-21	kworker/7:1+events	23:05:31	7
2406909	99	31	30,1	cyclictest	2507896	-21	kworker/7:1+events	23:02:51	7
2406909	99	31	30,1	cyclictest	2507896	-21	kworker/7:1+events	22:55:22	7
2406909	99	31	30,1	cyclictest	2507896	-21	kworker/7:1+events	22:50:48	7
2406909	99	31	30,1	cyclictest	2507896	-21	kworker/7:1+events	22:50:47	7
2406909	99	31	30,1	cyclictest	2507896	-21	kworker/7:1+events	22:45:22	7
2406909	99	31	30,1	cyclictest	2507896	-21	kworker/7:1+events	22:45:21	7
2406909	99	31	30,1	cyclictest	2507896	-21	kworker/7:1+events	22:35:10	7
2406909	99	31	30,1	cyclictest	2502951	-21	kworker/7:0+events	22:30:01	7
2406909	99	31	30,1	cyclictest	2502951	-21	kworker/7:0+events	22:25:45	7
2406909	99	31	30,1	cyclictest	2487689	-21	kworker/7:2+events	22:15:01	7
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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