OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #7, slot #2

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 rack7slot2.osadl.org (updated Tue Nov 25, 2025 00:44:04)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2326167	99	115	107,6	cyclictest	2384439	-21	kworker/u4:7+events_unbound	21:48:22	1
2326167	99	89	80,6	cyclictest	2337708	-21	kworker/u4:8+events_unbound	20:27:39	1
2326166	99	88	78,7	cyclictest	2460075	-21	kworker/u4:3+events_unbound	23:18:45	0
2326166	99	86	78,6	cyclictest	2337706	-21	kworker/u4:2+events_unbound	20:12:38	0
2326167	99	84	76,6	cyclictest	2500348	-21	kworker/u4:12+events_unbound	00:08:14	1
2326166	99	81	72,7	cyclictest	2335143	-21	kworker/u4:14+events_unbound	21:12:48	0
2326166	99	81	71,8	cyclictest	2345634	-21	kworker/u4:12+events_unbound	20:38:02	0
2326166	99	80	71,6	cyclictest	2500344	-21	kworker/u4:1+events_unbound	00:08:57	0
2326166	99	80	69,8	cyclictest	53	-21	kswapd0	22:45:07	0
2326167	99	77	69,6	cyclictest	2464194	-21	kworker/u4:5+events_unbound	23:23:47	1
2326166	99	77	56,17	cyclictest	0	-21	swapper/0	19:55:08	0
2326167	99	75	64,8	cyclictest	2327393	-21	kworker/u4:9+events_unbound	20:42:43	1
2326166	99	75	65,6	cyclictest	2352153	-21	kworker/u4:7+events_unbound	21:17:49	0
2326166	99	75	4,69	cyclictest	0	-21	swapper/0	23:10:11	0
2326167	99	74	65,6	cyclictest	2326083	-21	kworker/u4:3+events_unbound	20:50:01	1
2326166	99	73	63,8	cyclictest	53	-21	kswapd0	22:05:08	0
2326166	99	73	32,38	cyclictest	257	50	irq/23-42890000.ethernet	22:30:03	0
2326166	99	73	1,17	cyclictest	2371527	-21	ssh	21:26:07	0
2326166	99	71	62,6	cyclictest	2503574	-21	kworker/u4:13+events_unbound	00:18:57	0
2326166	99	71	61,7	cyclictest	2323624	-21	kworker/u4:2+events_unbound	19:27:28	0
2326166	99	71	35,32	cyclictest	2430345	-21	wc	22:40:02	0
2326166	99	70	60,7	cyclictest	2337709	-21	kworker/u4:17+events_unbound	20:07:38	0
2326166	99	70	15,6	cyclictest	0	-21	swapper/0	21:45:43	0
2326166	99	69	61,6	cyclictest	2476517	-21	kworker/u4:12+events_unbound	23:43:14	0
2326166	99	69	61,6	cyclictest	2327395	-21	kworker/u4:11+events_unbound	19:12:25	0
2326166	99	68	35,30	cyclictest	2398546	-21	aten_r7power_en	22:00:16	0
2326166	99	68	33,32	cyclictest	2353332	-21	unixbench_multi	20:50:38	0
2326166	99	68	23,42	cyclictest	0	-21	swapper/0	21:40:28	0
2326166	99	68	23,42	cyclictest	0	-21	swapper/0	21:40:27	0
2326166	99	67	33,32	cyclictest	2510353	-21	switchtime	00:20:46	0
2326166	99	67	32,32	cyclictest	2353815	-21	aten_r7power_po	20:55:20	0
2326166	99	67	31,32	cyclictest	0	-21	swapper/0	23:35:26	0
2326166	99	67	2,14	cyclictest	2446660	-21	ntpq	23:00:28	0
2326166	99	66	59,5	cyclictest	2492247	-21	kworker/u4:11+events_unbound	23:58:56	0
2326166	99	66	40,23	cyclictest	2411071	-21	tr	22:15:21	0
2326166	99	66	33,30	cyclictest	2339576	-21	fschecks_count	20:00:20	0
2326166	99	66	32,32	cyclictest	2375161	-21	timerandwakeup	21:30:40	0
2326166	99	66	29,34	cyclictest	2419203	-21	if_err_eth0	22:25:21	0
2326166	99	66	29,33	cyclictest	0	-21	swapper/0	00:00:25	0
2326166	99	66	24,39	cyclictest	0	-21	swapper/0	00:30:42	0
2326166	99	65	58,5	cyclictest	2337708	-21	kworker/u4:8+events_unbound	20:32:41	0
2326166	99	65	4,24	cyclictest	2513753	-21	ntp_states	00:25:39	0
2326166	99	65	4,16	cyclictest	2489913	-21	munin-run	23:55:00	0
2326166	99	65	3,18	cyclictest	2350897	-21	modprobe	20:45:00	0
2326166	99	65	31,30	cyclictest	0	-21	swapper/0	00:35:24	0
2326166	99	65	16,9	cyclictest	2462904	-21	ld	23:20:35	0
2326166	99	64	33,27	cyclictest	0	-21	swapper/0	22:20:21	0
2326166	99	64	31,30	cyclictest	2466162	-21	aten_r7power_po	23:25:18	0
2326166	99	64	30,30	cyclictest	0	-21	swapper/0	00:10:20	0
2326166	99	64	26,35	cyclictest	0	-21	swapper/0	23:45:25	0
2326167	99	63	58,3	cyclictest	2480606	-21	kworker/u4:10+events_unbound	23:48:54	1
2326166	99	63	29,32	cyclictest	0	-21	swapper/0	21:35:38	0
2326166	99	63	26,33	cyclictest	0	-21	swapper/0	21:20:22	0
2326166	99	63	20,6	cyclictest	0	-21	swapper/0	23:30:30	0
2326167	99	62	52,7	cyclictest	2464194	-21	kworker/u4:5+events_unbound	23:43:52	1
2326166	99	62	31,27	cyclictest	0	-21	swapper/0	23:05:36	0
2326166	99	62	25,33	cyclictest	0	-21	swapper/0	22:55:18	0
2326166	99	62	2,11	cyclictest	2391097	-21	ssh	21:50:27	0
2326166	99	62	15,9	cyclictest	2430899	-21	/usr/sbin/munin	22:40:21	0
2326167	99	61	52,6	cyclictest	0	-21	swapper/1	23:05:36	1
2326166	99	61	23,34	cyclictest	0	-21	swapper/0	21:55:37	0
2326166	99	61	23,33	cyclictest	0	-21	swapper/0	19:50:38	0
2326167	99	60	52,6	cyclictest	2327393	-21	kworker/u4:9+events_unbound	21:02:47	1
2326166	99	60	51,6	cyclictest	2407583	-21	/usr/sbin/munin	22:10:38	0
2326166	99	60	49,8	cyclictest	2327394	-21	kworker/u4:10-rpciod	19:15:19	0
2326166	99	60	27,30	cyclictest	2428730	-21	kworker/u4:5-rpciod	22:55:00	0
2326166	99	60	23,34	cyclictest	0	-21	swapper/0	19:40:36	0
2326166	99	60	1,19	cyclictest	2344403	-21	sendmail-msp	20:20:01	0
2326167	99	59	50,7	cyclictest	2337708	-21	kworker/u4:8+events_unbound	19:52:56	1
2326166	99	59	3,18	cyclictest	2356934	-21	ntpq	21:05:30	0
2326166	99	59	27,29	cyclictest	0	-21	swapper/0	19:45:37	0
2326166	99	59	23,33	cyclictest	0	-21	swapper/0	19:20:21	0
2326166	99	58	19,9	cyclictest	2351957	-21	cat	20:45:39	0
2326167	99	57	47,7	cyclictest	2331005	-21	switchtime	19:25:37	1
2326166	99	57	21,32	cyclictest	0	-21	swapper/0	21:05:00	0
2326166	99	57	18,5	cyclictest	0	-21	swapper/0	19:30:21	0
2326167	99	56	49,5	cyclictest	2456012	-21	kworker/u4:5+events_unbound	23:13:44	1
2326167	99	56	45,9	cyclictest	2400821	-21	kworker/u4:3+events_unbound	22:18:32	1
2326166	99	56	3,6	cyclictest	2333874	-21	sh	19:40:00	0
2326166	99	56	20,5	cyclictest	0	-21	swapper/0	20:25:17	0
2326166	99	56	19,5	cyclictest	0	-21	swapper/0	20:20:25	0
2326167	99	54	41,10	cyclictest	0	-21	swapper/1	00:25:31	1
2326167	99	54	21,20	cyclictest	0	-21	swapper/1	19:45:18	1
2326167	99	53	48,3	cyclictest	2384440	-21	kworker/u4:8+events_unbound	21:43:23	1
2326167	99	53	48,3	cyclictest	2384440	-21	kworker/u4:8+events_unbound	21:43:23	1
2326167	99	53	44,6	cyclictest	0	-21	swapper/1	23:15:34	1
2326167	99	53	42,7	cyclictest	2396705	-21	kworker/u4:10+events_unbound	22:02:58	1
2326167	99	52	44,6	cyclictest	2476517	-21	kworker/u4:12+events_unbound	23:38:13	1
2326167	99	52	44,5	cyclictest	2347949	-21	sendmail_mailqu	20:30:41	1
2326167	99	52	43,7	cyclictest	314	-21	systemd-journal	22:58:41	1
2326167	99	52	42,8	cyclictest	2353484	-21	cut	20:55:00	1
2326167	99	52	13,13	cyclictest	379	-21	dbus-daemon	00:13:16	1
2326167	99	51	5,41	cyclictest	2435210	-21	ssh	22:45:41	1
2326167	99	51	41,7	cyclictest	2514641	-21	kworker/u4:8+rpciod	00:30:20	1
2326167	99	50	42,6	cyclictest	2404939	-21	kworker/u4:7+events_unbound	22:07:59	1
2326167	99	50	38,9	cyclictest	0	-21	swapper/1	23:30:33	1
2326167	99	50	3,36	cyclictest	2494897	-21	ssh	00:00:26	1
2326167	99	49	42,5	cyclictest	2327813	-21	df_abs	19:15:17	1
2326167	99	49	38,7	cyclictest	0	-21	swapper/1	22:20:35	1
2326167	99	49	17,7	cyclictest	0	-21	swapper/1	21:57:21	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2019-05-28 - 00:17