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 Sep 10, 2026 12:44:06)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2357675	99	58	55,2	cyclictest	2342127	-21	kworker/u8:2+events_unbound	07:20:24	2
2357675	99	58	55,2	cyclictest	2342127	-21	kworker/u8:2+events_unbound	07:20:24	2
2357675	99	44	41,2	cyclictest	2529165	-21	kworker/u8:1+events_unbound	10:45:14	2
2357675	99	44	41,2	cyclictest	2471562	-21	kworker/u8:3+events_unbound	10:15:23	2
2357671	99	40	37,2	cyclictest	2471562	-21	kworker/u8:3+flush-259:0	10:35:25	1
2357675	99	39	36,2	cyclictest	2513320	-21	kworker/u8:2+events_unbound	09:45:22	2
2357675	99	39	36,2	cyclictest	2430214	-21	kworker/u8:1+flush-259:0	08:40:26	2
2357675	99	39	35,3	cyclictest	2487769	-21	kworker/u8:1+events_unbound	09:15:19	2
2357675	99	38	35,2	cyclictest	2618031	-21	kworker/u8:1+events_unbound	12:00:24	2
2357675	99	37	34,2	cyclictest	2685468	-21	kworker/u8:0+flush-259:0	12:30:15	2
2357675	99	37	34,2	cyclictest	2471562	-21	kworker/u8:3+events_unbound	10:40:14	2
2357675	99	37	34,2	cyclictest	2471562	-21	kworker/u8:3+events_unbound	10:35:24	2
2357668	99	37	0,35	cyclictest	1	-21	systemd	08:32:27	0
2357675	99	36	34,2	cyclictest	2394060	-21	kworker/u8:4+flush-259:0	08:00:26	2
2357675	99	36	33,2	cyclictest	2659714	-21	kworker/u8:2+flush-259:0	12:25:23	2
2357675	99	35	32,2	cyclictest	2352737	-21	kworker/u8:0+events_unbound	08:10:20	2
2357675	99	35	31,3	cyclictest	2529165	-21	kworker/u8:1+flush-259:0	10:05:19	2
2357675	99	35	26,3	cyclictest	2554717	-21	kworker/u8:2+events_unbound	10:20:14	2
2357671	99	35	31,3	cyclictest	2644169	-21	kworker/u8:3+flush-259:0	11:45:21	1
2357675	99	34	32,2	cyclictest	2441038	-21	kworker/u8:3+events_unbound	08:30:18	2
2357675	99	34	31,2	cyclictest	2607911	-21	kworker/u8:3+events_unbound	11:25:14	2
2357675	99	34	30,3	cyclictest	2394060	-21	kworker/u8:4+events_unbound	07:55:21	2
2357675	99	33	30,2	cyclictest	2644169	-21	kworker/u8:3+flush-259:0	11:45:24	2
2357675	99	33	30,2	cyclictest	2471562	-21	kworker/u8:3+flush-259:0	10:25:24	2
2357675	99	32	29,2	cyclictest	2580961	-21	kworker/u8:5+events_unbound	11:40:14	2
2357675	99	32	29,2	cyclictest	2394060	-21	kworker/u8:4+events_unbound	08:15:12	2
2357675	99	32	29,2	cyclictest	2378316	-21	kworker/u8:3+events_unbound	07:35:11	2
2357675	99	32	29,2	cyclictest	2352737	-21	kworker/u8:0+events_unbound	08:20:25	2
2357675	99	32	29,2	cyclictest	2336819	-21	kworker/u8:1+events_unbound	07:15:14	2
2357671	99	32	29,2	cyclictest	2471562	-21	kworker/u8:3+events_unbound	10:30:10	1
2357678	99	31	25,4	cyclictest	2628376	-21	latency_hist	11:30:00	3
2357675	99	31	28,2	cyclictest	2618031	-21	kworker/u8:1+flush-259:0	12:10:15	2
2357675	99	31	28,2	cyclictest	2607911	-21	kworker/u8:3+events_unbound	11:20:13	2
2357675	99	31	28,2	cyclictest	2607911	-21	kworker/u8:3+events_unbound	11:15:22	2
2357675	99	31	25,5	cyclictest	2602080	-21	latency_hist	11:05:00	2
2357671	99	31	28,2	cyclictest	2352737	-21	kworker/u8:0+events_unbound	08:25:17	1
2357671	99	31	27,3	cyclictest	2607947	-21	apt-get	11:10:13	1
2357671	99	31	27,3	cyclictest	2430214	-21	kworker/u8:1+flush-259:0	08:40:20	1
2357671	99	31	27,2	cyclictest	2618031	-21	kworker/u8:1+events_unbound	12:20:24	1
2357671	99	31	27,2	cyclictest	2618031	-21	kworker/u8:1+events_unbound	12:20:23	1
2357668	99	31	22,6	cyclictest	2685455	-21	latency_hist	12:25:01	0
2357668	99	31	22,6	cyclictest	2685455	-21	latency_hist	12:25:01	0
2357675	99	30	28,2	cyclictest	2498150	-21	kworker/u8:0+flush-259:0	10:00:15	2
2357671	99	30	24,4	cyclictest	2613119	-21	/usr/sbin/munin	11:15:15	1
2357675	99	29	24,4	cyclictest	2524181	-21	/usr/sbin/munin	09:50:13	2
2357671	99	29	25,3	cyclictest	2628076	-21	kworker/u8:0+flush-259:0	11:30:22	1
2357668	99	29	25,3	cyclictest	2352737	-21	kworker/u8:0+events_unbound	07:45:01	0
2357668	99	29	22,5	cyclictest	2373133	-21	latency_hist	07:25:00	0
2357668	99	29	22,5	cyclictest	2373133	-21	latency_hist	07:25:00	0
2357678	99	28	22,4	cyclictest	335557	-21	systemd-journal	10:20:01	3
2357675	99	28	26,2	cyclictest	2461141	-21	kworker/u8:0+flush-259:0	09:05:16	2
2357675	99	28	25,2	cyclictest	2665252	-21	kworker/u8:4+events_unbound	12:05:25	2
2357675	99	28	22,3	cyclictest	2529165	-21	kworker/u8:1+events_unbound	10:10:20	2
2357671	99	28	25,2	cyclictest	2352737	-21	kworker/u8:0+flush-259:0	08:05:24	1
2357675	99	27	24,2	cyclictest	2654536	-21	kworker/u8:0+events_unbound	11:55:17	2
2357675	99	27	24,2	cyclictest	2378316	-21	kworker/u8:3+events_unbound	07:40:06	2
2357671	99	27	23,3	cyclictest	2654536	-21	kworker/u8:0+flush-259:0	11:55:15	1
2357671	99	27	23,3	cyclictest	2618031	-21	kworker/u8:1+events_unbound	12:00:18	1
2357671	99	27	22,3	cyclictest	2685468	-21	kworker/u8:0+flush-259:0	12:30:15	1
2357668	99	27	21,4	cyclictest	2581204	-21	apt-get	10:45:12	0
2357678	99	26	22,3	cyclictest	2352737	-21	kworker/u8:0+flush-259:0	07:25:23	3
2357675	99	26	24,1	cyclictest	2471562	-21	kworker/u8:3+events_unbound	09:30:12	2
2357675	99	26	23,2	cyclictest	2471562	-21	kworker/u8:3+events_unbound	09:24:18	2
2357675	99	26	23,2	cyclictest	2430214	-21	kworker/u8:1+events_unbound	08:55:17	2
2357675	99	26	22,3	cyclictest	2471562	-21	kworker/u8:3+events_unbound	10:30:14	2
2357671	99	26	23,2	cyclictest	2487769	-21	kworker/u8:1+events_unbound	09:20:20	1
2357678	99	25	22,2	cyclictest	2394060	-21	kworker/u8:4+flush-259:0	08:05:16	3
2357675	99	25	23,2	cyclictest	2394060	-21	kworker/u8:4+events_unbound	07:50:27	2
2357675	99	25	22,2	cyclictest	2580961	-21	kworker/u8:5+events_unbound	11:10:03	2
2357675	99	25	22,2	cyclictest	2554717	-21	kworker/u8:2+events_unbound	10:50:17	2
2357675	99	25	21,3	cyclictest	2675297	-21	kworker/u8:0+events_unbound	12:15:15	2
2357671	99	25	22,2	cyclictest	2665252	-21	kworker/u8:4+events_unbound	12:05:28	1
2357671	99	25	22,2	cyclictest	2352737	-21	kworker/u8:0+flush-259:0	08:25:00	1
2357671	99	25	19,4	cyclictest	335557	-21	systemd-journal	07:40:00	1
2357671	99	25	18,4	cyclictest	2471562	-21	kworker/u8:3+flush-259:0	09:10:20	1
2357668	99	25	20,3	cyclictest	2550077	-21	/usr/sbin/munin	10:15:13	0
2357668	99	25	19,4	cyclictest	2570814	-21	/usr/sbin/munin	10:35:16	0
2357668	99	25	19,4	cyclictest	2456583	-21	apt-get	08:45:10	0
2357675	99	24	21,2	cyclictest	2607269	-21	apt-get	11:10:01	2
2357675	99	24	21,2	cyclictest	2529165	-21	kworker/u8:1+events_unbound	09:55:17	2
2357675	99	24	21,2	cyclictest	2529165	-21	kworker/u8:1+events_unbound	09:55:16	2
2357675	99	24	21,2	cyclictest	2430214	-21	kworker/u8:1+events_unbound	09:00:16	2
2357675	99	24	20,3	cyclictest	2430214	-21	kworker/u8:1+events_unbound	08:25:16	2
2357671	99	24	21,2	cyclictest	2580961	-21	kworker/u8:5+flush-259:0	11:05:21	1
2357671	99	24	21,2	cyclictest	2513320	-21	kworker/u8:2+flush-259:0	09:40:23	1
2357671	99	24	21,2	cyclictest	2471562	-21	kworker/u8:3+events_unbound	09:35:18	1
2357671	99	24	20,3	cyclictest	2685468	-21	kworker/u8:0+flush-259:0	12:35:23	1
2357671	99	24	20,3	cyclictest	2618031	-21	kworker/u8:1+flush-259:0	12:10:22	1
2357671	99	24	20,3	cyclictest	2529165	-21	kworker/u8:1+flush-259:0	09:55:20	1
2357671	99	24	20,3	cyclictest	2529165	-21	kworker/u8:1+flush-259:0	09:55:19	1
2357671	99	24	20,3	cyclictest	2409577	-21	gpgv	08:00:01	1
2357668	99	24	19,3	cyclictest	2394060	-21	kworker/u8:4+flush-259:0	07:55:21	0
2357675	99	23	20,2	cyclictest	2352737	-21	kworker/u8:0+flush-259:0	08:05:26	2
2357675	99	23	19,3	cyclictest	2430214	-21	kworker/u8:1+flush-259:0	08:54:59	2
2357671	99	23	19,3	cyclictest	2471562	-21	kworker/u8:3+events_unbound	09:25:24	1
2357668	99	23	17,4	cyclictest	2633555	-21	latency_hist	11:35:01	0
2357668	99	23	16,5	cyclictest	335557	-21	systemd-journal	07:35:00	0
2357675	99	22	19,2	cyclictest	2580961	-21	kworker/u8:5+events_unbound	11:35:12	2
2357675	99	22	19,2	cyclictest	2352737	-21	kworker/u8:0+events_unbound	07:30:12	2
2357675	99	22	18,3	cyclictest	2685468	-21	kworker/u8:0+events_unbound	12:36:17	2
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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