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 #3

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.
Unexpectedly long latencies may be caused by SMIs
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 rackeslot3s.osadl.org (updated Fri Mar 13, 2026 12:45:30)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2235471	99	101	40,17	cyclictest	168	50	irq/134-8000000	11:30:01	0
2235478	99	98	5,73	cyclictest	2320242	-21	rm	12:05:03	1
2235484	99	92	31,30	cyclictest	2318274	-21	sh	12:00:45	3
2235471	99	89	85,2	cyclictest	0	-21	swapper/0	09:15:02	0
2235471	99	88	79,6	cyclictest	169	50	irq/224-8000000	10:45:02	0
2235484	99	79	1,37	cyclictest	2253304	-21	ssh	09:35:29	3
2235484	99	78	27,18	cyclictest	2292498	-21	sh	11:03:23	3
2235484	99	74	2,40	cyclictest	2317473	-21	sshd	11:59:23	3
2235484	99	72	13,23	cyclictest	2241645	-21	diskmemload	10:43:19	3
2235482	99	72	27,12	cyclictest	30	-21	ksoftirqd/2	11:25:17	2
2235484	99	71	16,22	cyclictest	2315215	-21	rm	11:54:21	3
2235484	99	71	1,39	cyclictest	2241233	-21	date	09:00:02	3
2235484	99	71	1,39	cyclictest	2241233	-21	date	09:00:02	3
2235484	99	70	1,37	cyclictest	2328797	-21	ssh	12:24:08	3
2235484	99	69	23,41	cyclictest	275	-21	dbus-daemon	11:25:01	3
2235484	99	69	2,33	cyclictest	2307418	-21	ssh	11:36:39	3
2235484	99	69	2,33	cyclictest	2304276	-21	ssh	11:29:57	3
2235484	99	69	1,63	cyclictest	2256519	-21	ssh	09:42:51	3
2235484	99	69	1,43	cyclictest	2297593	-21	munin-run	11:15:01	3
2235484	99	69	1,39	cyclictest	2326654	-21	rm	12:19:32	3
2235484	99	69	1,39	cyclictest	2326654	-21	rm	12:19:31	3
2235484	99	69	1,30	cyclictest	2298587	-21	ssh	11:16:53	3
2235484	99	68	1,62	cyclictest	2277910	-21	ssh	10:30:26	3
2235484	99	68	1,61	cyclictest	2240118	-21	munin-run	08:40:01	3
2235484	99	67	1,62	cyclictest	2252734	-21	ssh	09:34:31	3
2235484	99	67	1,62	cyclictest	2252734	-21	ssh	09:34:31	3
2235484	99	67	1,61	cyclictest	2280591	-21	ssh	10:36:33	3
2235484	99	66	20,42	cyclictest	37	-21	ksoftirqd/3	10:26:23	3
2235484	99	66	1,60	cyclictest	2322581	-21	ssh	12:10:12	3
2235484	99	65	24,36	cyclictest	2284606	-21	sh	10:45:21	3
2235484	99	65	1,60	cyclictest	2320676	-21	ssh	12:06:13	3
2235484	99	65	1,60	cyclictest	2306004	-21	ssh	11:33:39	3
2235484	99	65	1,60	cyclictest	2262783	-21	ssh	09:56:51	3
2235484	99	65	1,60	cyclictest	2243570	-21	ssh	09:14:12	3
2235482	99	65	27,9	cyclictest	30	-21	ksoftirqd/2	12:29:50	2
2235484	99	64	2,58	cyclictest	2235892	-21	cron	07:17:00	3
2235484	99	64	2,58	cyclictest	2235892	-21	cron	07:17:00	3
2235484	99	64	2,31	cyclictest	2258600	-21	ssh	09:47:30	3
2235484	99	64	1,60	cyclictest	2244204	-21	ssh	09:15:08	3
2235484	99	64	1,59	cyclictest	2334762	-21	ssh	12:36:57	3
2235484	99	64	1,59	cyclictest	2331669	-21	ssh	12:30:03	3
2235484	99	64	1,59	cyclictest	2329635	-21	ssh	12:25:34	3
2235484	99	64	1,59	cyclictest	2293961	-21	ssh	11:06:29	3
2235484	99	64	1,59	cyclictest	2267390	-21	ssh	10:07:02	3
2235484	99	64	1,59	cyclictest	2265931	-21	ssh	10:04:00	3
2235484	99	64	1,59	cyclictest	2265931	-21	ssh	10:03:59	3
2235484	99	64	1,59	cyclictest	2260372	-21	ssh	09:51:19	3
2235484	99	64	1,58	cyclictest	2273367	-21	ssh	10:20:15	3
2235484	99	64	1,58	cyclictest	2273367	-21	ssh	10:20:15	3
2235482	99	64	28,9	cyclictest	30	-21	ksoftirqd/2	09:35:47	2
2235482	99	64	26,8	cyclictest	30	-21	ksoftirqd/2	10:32:06	2
2235482	99	64	26,12	cyclictest	30	-21	ksoftirqd/2	10:44:46	2
2235471	99	64	3,57	cyclictest	2270952	-21	ssh	10:15:02	0
2235471	99	64	3,57	cyclictest	2270952	-21	ssh	10:15:02	0
2235471	99	64	32,29	cyclictest	12	1	ksoftirqd/0	10:01:19	0
2235471	99	64	32,29	cyclictest	12	1	ksoftirqd/0	10:01:19	0
2235484	99	63	2,57	cyclictest	2239800	-21	sshd	08:33:23	3
2235484	99	63	1,58	cyclictest	2311564	-21	ssh	11:45:43	3
2235484	99	63	1,58	cyclictest	2309226	-21	ssh	11:40:24	3
2235484	99	63	1,58	cyclictest	2271410	-21	ssh	10:15:57	3
2235484	99	63	1,58	cyclictest	2269649	-21	ssh	10:12:09	3
2235484	99	63	1,58	cyclictest	2269649	-21	ssh	10:12:09	3
2235484	99	63	1,58	cyclictest	2246444	-21	ssh	09:20:05	3
2235484	99	62	2,56	cyclictest	2286724	-21	ssh	10:50:11	3
2235484	99	62	2,56	cyclictest	2286724	-21	ssh	10:50:10	3
2235484	99	62	1,57	cyclictest	2235644	-21	sshd	07:13:23	3
2235482	99	62	28,10	cyclictest	30	-21	ksoftirqd/2	10:39:01	2
2235482	99	62	22,12	cyclictest	30	-21	ksoftirqd/2	09:31:43	2
2235482	99	62	22,12	cyclictest	30	-21	ksoftirqd/2	09:31:43	2
2235484	99	61	2,55	cyclictest	2239776	-21	cat	08:30:03	3
2235484	99	61	2,55	cyclictest	2239776	-21	cat	08:30:03	3
2235484	99	61	2,53	cyclictest	2238282	-21	munin-run	08:05:01	3
2235484	99	61	2,53	cyclictest	2238282	-21	munin-run	08:05:01	3
2235484	99	61	21,36	cyclictest	2238226	-21	date	08:00:02	3
2235484	99	61	1,56	cyclictest	2289439	-21	ssh	10:56:27	3
2235484	99	61	1,56	cyclictest	2249087	-21	ssh	09:26:10	3
2235482	99	61	26,4	cyclictest	2265543	-21	sh	10:03:03	2
2235482	99	61	26,4	cyclictest	2265543	-21	sh	10:03:03	2
2235484	99	60	2,53	cyclictest	2240610	-21	munin-run	08:50:00	3
2235484	99	60	25,30	cyclictest	2238849	-21	latency_hist	08:15:02	3
2235484	99	60	1,55	cyclictest	2237718	-21	sshd	07:51:23	3
2235484	99	60	1,54	cyclictest	2238509	-21	sshd	08:08:23	3
2235471	99	60	29,14	cyclictest	2314285	-21	ssh	11:51:57	0
2235484	99	59	2,52	cyclictest	2239336	-21	munin-run	08:25:01	3
2235482	99	59	24,9	cyclictest	30	-21	ksoftirqd/2	11:34:38	2
2235482	99	59	22,10	cyclictest	30	-21	ksoftirqd/2	11:44:47	2
2235482	99	59	22,10	cyclictest	30	-21	ksoftirqd/2	11:37:38	2
2235482	99	59	20,8	cyclictest	309	-21	in:imuxsock	12:05:01	2
2235484	99	58	1,52	cyclictest	48	-21	kcompactd0	09:02:43	3
2235484	99	58	1,52	cyclictest	2236211	-21	munin-run	07:25:00	3
2235482	99	58	17,14	cyclictest	2238439	-21	cat	08:05:02	2
2235482	99	58	17,14	cyclictest	2238439	-21	cat	08:05:02	2
2235471	99	58	24,31	cyclictest	12	-21	ksoftirqd/0	07:24:23	0
2235471	99	58	18,36	cyclictest	0	-21	swapper/0	09:34:07	0
2235471	99	58	18,36	cyclictest	0	-21	swapper/0	09:34:06	0
2235484	99	57	1,51	cyclictest	364	-21	snmpd	08:41:46	3
2235484	99	57	1,51	cyclictest	364	-21	snmpd	07:33:25	3
2235484	99	57	1,51	cyclictest	364	-21	snmpd	07:33:25	3
2235484	99	57	1,51	cyclictest	2239086	-21	munin-run	08:20:01	3
2235482	99	57	23,8	cyclictest	30	-21	ksoftirqd/2	08:15:01	2
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


Access: public		Short link to this page
This page was last modified on 2021-09-01 - 00:33