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 Tue Aug 04, 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
2035847	99	68	63,4	cyclictest	75	-21	kswapd0	09:42:03	1
2035853	99	43	38,3	cyclictest	2243695	-21	base64	10:30:01	3
2035853	99	41	38,2	cyclictest	2129062	-21	kworker/u8:1+flush-259:0	09:20:01	3
2035847	99	41	35,4	cyclictest	335557	-21	systemd-journal	11:49:02	1
2035853	99	40	34,4	cyclictest	335557	-21	systemd-journal	08:08:02	3
2035853	99	37	31,4	cyclictest	2373285	-21	latency_hist	12:35:00	3
2035844	99	37	34,2	cyclictest	1980130	-21	kworker/u8:3+events_unbound	07:35:18	0
2035847	99	36	29,5	cyclictest	2092618	-21	latency_hist	08:05:01	1
2035847	99	35	29,4	cyclictest	2342215	-21	latency_hist	12:05:01	1
2035851	99	34	30,3	cyclictest	1980130	-21	kworker/u8:3+flush-259:0	07:36:02	2
2035847	99	34	29,3	cyclictest	2248940	-21	apt-get	10:35:14	1
2035844	99	34	30,3	cyclictest	335557	-21	systemd-journal	07:55:00	0
2035851	99	33	29,3	cyclictest	1980130	-21	kworker/u8:3+events_unbound	10:46:01	2
2035853	99	32	29,2	cyclictest	2041180	-21	kworker/u8:2+events_unbound	07:25:23	3
2035851	99	32	28,3	cyclictest	3219561	-21	kworker/u8:0+flush-259:0	07:20:25	2
2035851	99	32	28,3	cyclictest	2362706	-21	kworker/u8:0+events_unbound	12:26:03	2
2035844	99	32	26,4	cyclictest	2196479	-21	latency_hist	09:45:00	0
2035851	99	31	28,2	cyclictest	1980130	-21	kworker/u8:3+events_unbound	08:57:03	2
2035851	99	31	27,3	cyclictest	2290127	-21	kworker/u8:0+events_unbound	11:23:03	2
2035851	99	31	25,4	cyclictest	2331859	-21	latency_hist	11:55:00	2
2035851	99	30	26,3	cyclictest	1980130	-21	kworker/u8:3+flush-259:0	07:33:22	2
2035847	99	30	25,3	cyclictest	335557	-21	systemd-journal	11:50:01	1
2035851	99	29	25,3	cyclictest	2061737	-21	kworker/u8:1+flush-259:0	08:05:16	2
2035847	99	29	24,3	cyclictest	2269682	-21	apt-get	10:55:12	1
2035853	99	28	25,2	cyclictest	2279987	-21	kworker/u8:3+flush-259:0	11:25:00	3
2035853	99	28	25,2	cyclictest	2118292	-21	kworker/u8:0+flush-259:0	08:45:21	3
2035851	99	28	24,3	cyclictest	2082356	-21	kworker/u8:2+events_unbound	08:30:03	2
2035853	99	27	24,3	cyclictest	2377397	-21	kworker/u8:0+flush-259:0	12:35:26	3
2035853	99	27	24,2	cyclictest	2175972	-21	kworker/u8:2+events_unbound	09:48:01	3
2035853	99	27	22,3	cyclictest	2186094	-21	latency_hist	09:35:00	3
2035853	99	27	21,4	cyclictest	2274595	-21	latency_hist	11:00:01	3
2035851	99	27	24,2	cyclictest	2337273	-21	kworker/u8:2+flush-259:0	12:09:16	2
2035851	99	27	24,2	cyclictest	1980130	-21	kworker/u8:3+events_unbound	09:34:02	2
2035851	99	27	23,3	cyclictest	2279987	-21	kworker/u8:3+events_unbound	11:26:02	2
2035847	99	27	22,4	cyclictest	2367194	-21	ntpq	12:25:21	1
2035847	99	27	20,5	cyclictest	2118469	-21	latency_hist	08:30:01	1
2035844	99	27	22,4	cyclictest	2264240	-21	latency_hist	10:50:01	0
2035853	99	26	23,2	cyclictest	2290127	-21	kworker/u8:0+events_unbound	11:22:03	3
2035853	99	26	23,2	cyclictest	1980130	-21	kworker/u8:3+events_unbound	08:35:23	3
2035851	99	26	25,1	cyclictest	2175972	-21	kworker/u8:2+events_unbound	10:25:01	2
2035851	99	26	22,3	cyclictest	2186118	-21	kworker/u8:0+events_unbound	09:43:02	2
2035847	99	26	23,2	cyclictest	1980130	-21	kworker/u8:3+flush-259:0	09:50:20	1
2035844	99	26	21,4	cyclictest	335557	-21	systemd-journal	07:35:00	0
2035844	99	26	20,4	cyclictest	2326965	-21	apt-get	11:50:11	0
2035844	99	26	18,5	cyclictest	335557	-21	systemd-journal	08:40:02	0
2035853	99	25	23,1	cyclictest	1980130	-21	kworker/u8:3+events_unbound	08:55:14	3
2035853	99	25	22,2	cyclictest	2103174	-21	apt-get	08:15:12	3
2035844	99	25	19,4	cyclictest	2159385	-21	ntpq	09:05:24	0
2035853	99	24	22,2	cyclictest	2357493	-21	kworker/u8:2+events_unbound	12:19:03	3
2035853	99	24	21,2	cyclictest	2087733	-21	apt-get	08:00:12	3
2035853	99	24	20,3	cyclictest	2041180	-21	kworker/u8:2+events_unbound	07:24:03	3
2035851	99	24	21,2	cyclictest	2319896	-21	kworker/u8:0+events_unbound	12:00:00	2
2035851	99	24	20,3	cyclictest	335557	-21	systemd-journal	07:13:01	2
2035851	99	24	20,3	cyclictest	2118292	-21	kworker/u8:0+events_unbound	08:46:03	2
2035847	99	24	20,3	cyclictest	2280022	-21	apt-get	11:05:12	1
2035853	99	23	20,2	cyclictest	2061737	-21	kworker/u8:1+flush-259:0	08:20:15	3
2035851	99	23	20,2	cyclictest	1980130	-21	kworker/u8:3+events_unbound	09:55:03	2
2035851	99	23	19,3	cyclictest	2082356	-21	kworker/u8:2+events_unbound	08:38:34	2
2035847	99	23	19,3	cyclictest	2186118	-21	kworker/u8:0+flush-259:0	10:20:00	1
2035847	99	23	19,3	cyclictest	2160493	-21	apt-get	09:10:14	1
2035844	99	23	19,3	cyclictest	2175972	-21	kworker/u8:2+flush-259:0	09:35:00	0
2035853	99	22	21,1	cyclictest	2186118	-21	kworker/u8:0+events_unbound	10:38:02	3
2035853	99	22	20,2	cyclictest	2170598	-21	kworker/u8:4+flush-259:0	09:55:27	3
2035853	99	22	19,2	cyclictest	2347940	-21	kworker/u8:3+events_unbound	12:29:21	3
2035853	99	22	19,2	cyclictest	2279770	-21	kworker/u8:2+flush-259:0	11:15:17	3
2035853	99	22	19,2	cyclictest	2186118	-21	kworker/u8:0+flush-259:0	10:10:26	3
2035851	99	22	19,2	cyclictest	1980130	-21	kworker/u8:3+events_unbound	07:15:23	2
2035851	99	22	18,2	cyclictest	2061737	-21	kworker/u8:1+events_unbound	08:20:17	2
2035847	99	22	16,4	cyclictest	2217261	-21	latency_hist	10:05:00	1
2035844	99	22	19,2	cyclictest	2254083	-21	kworker/u8:4+flush-259:0	11:05:21	0
2035844	99	22	16,5	cyclictest	2040068	-21	ntpq	07:10:21	0
2035853	99	21	19,2	cyclictest	2186118	-21	kworker/u8:0+events_unbound	11:04:01	3
2035853	99	21	18,3	cyclictest	2118292	-21	kworker/u8:0+events_unbound	09:05:25	3
2035853	99	21	18,2	cyclictest	3219561	-21	kworker/u8:0+flush-259:0	07:45:00	3
2035853	99	21	18,2	cyclictest	1980130	-21	kworker/u8:3+events_unbound	07:10:17	3
2035851	99	21	18,2	cyclictest	2279770	-21	kworker/u8:2+flush-259:0	11:09:06	2
2035851	99	21	17,3	cyclictest	2347940	-21	kworker/u8:3+events_unbound	12:30:02	2
2035851	99	21	17,3	cyclictest	2279770	-21	kworker/u8:2+events_unbound	11:10:14	2
2035851	99	21	17,3	cyclictest	2175972	-21	kworker/u8:2+events_unbound	09:54:02	2
2035851	99	21	17,3	cyclictest	1980130	-21	kworker/u8:3+events_unbound	10:15:20	2
2035851	99	21	16,4	cyclictest	2320628	-21	ntpq	11:40:23	2
2035847	99	21	16,3	cyclictest	2373553	-21	apt-get	12:35:13	1
2035844	99	21	15,4	cyclictest	2300642	-21	store	11:25:00	0
2035853	99	20	17,2	cyclictest	2170598	-21	kworker/u8:4+events_unbound	10:00:15	3
2035853	99	20	17,2	cyclictest	2118292	-21	kworker/u8:0+flush-259:0	09:21:02	3
2035853	99	20	17,2	cyclictest	2082356	-21	kworker/u8:2+flush-259:0	08:30:20	3
2035853	99	20	17,2	cyclictest	1980130	-21	kworker/u8:3+flush-259:0	07:35:16	3
2035851	99	20	17,2	cyclictest	2186118	-21	kworker/u8:0+events_unbound	10:39:00	2
2035851	99	20	16,3	cyclictest	2337273	-21	kworker/u8:2+events_unbound	12:10:03	2
2035851	99	20	16,3	cyclictest	2337273	-21	kworker/u8:2+events_unbound	12:10:03	2
2035851	99	20	16,3	cyclictest	2254083	-21	kworker/u8:4+events_unbound	11:00:15	2
2035851	99	20	16,3	cyclictest	2061737	-21	kworker/u8:1+events_unbound	08:15:15	2
2035851	99	20	16,2	cyclictest	2295266	-21	sh	11:20:00	2
2035844	99	20	17,2	cyclictest	2056537	-21	sh	07:30:00	0
2035853	99	19	17,2	cyclictest	2041180	-21	kworker/u8:2+flush-259:0	07:15:15	3
2035853	99	19	16,2	cyclictest	1980130	-21	kworker/u8:3+events_unbound	10:45:12	3
2035853	99	19	13,4	cyclictest	509	-21	rs:main		3
2035851	99	19	16,2	cyclictest	1980130	-21	kworker/u8:3+flush-259:0	10:40:21	2
2035851	99	19	15,3	cyclictest	2377397	-21	kworker/u8:0+events_unbound	12:39:03	2
2035851	99	19	15,3	cyclictest	2357493	-21	kworker/u8:2+events_unbound	12:18:02	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