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 Sat Apr 25, 2026 00:44:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3226051	99	130	118,7	cyclictest	3355381	-21	kworker/u4:8+events_unbound	23:17:17	1
3226051	99	109	90,7	cyclictest	3333935	-21	kworker/u4:1+events_unbound	22:42:12	1
3226051	99	106	89,6	cyclictest	3272641	-21	kworker/u4:9+events_unbound	21:32:01	1
3226051	99	99	91,6	cyclictest	3232493	-21	kworker/u4:18+events_unbound	20:11:51	1
3226051	99	90	74,6	cyclictest	3320692	-21	kworker/u4:9+events_unbound	22:27:08	1
3226051	99	85	77,6	cyclictest	3172346	-21	kworker/u4:9+events_unbound	19:31:42	1
3226051	99	84	64,6	cyclictest	3224782	-21	kworker/u4:5+events_unbound	19:10:01	1
3226051	99	81	74,5	cyclictest	3242885	-21	kworker/u4:14+events_unbound	20:16:52	1
3226050	99	80	54,22	cyclictest	53	-21	kswapd0	23:55:12	0
3226051	99	79	71,6	cyclictest	3229863	-21	kworker/u4:12+events_unbound	20:10:00	1
3226051	99	77	68,6	cyclictest	3232492	-21	kworker/u4:17+events_unbound	19:51:46	1
3226051	99	77	55,8	cyclictest	3227283	-21	kworker/u4:10+events_unbound	19:30:01	1
3226050	99	72	59,9	cyclictest	3379312	-21	aten2__	23:30:14	0
3226051	99	71	63,6	cyclictest	3250571	-21	kworker/u4:4+events_unbound	20:45:01	1
3226051	99	69	61,6	cyclictest	3232492	-21	kworker/u4:17+events_unbound	20:25:01	1
3226050	99	69	41,20	cyclictest	3322481	-21	kworker/u4:2	22:25:01	0
3226051	99	68	56,8	cyclictest	3257068	-21	diskmemload	21:20:17	1
3226050	99	68	39,12	cyclictest	53	-21	kswapd0	23:45:08	0
3226050	99	68	39,12	cyclictest	53	-21	kswapd0	23:45:08	0
3226051	99	67	62,4	cyclictest	3238957	-21	kworker/u4:7+events_unbound	21:17:00	1
3226051	99	67	60,5	cyclictest	3223565	-21	kworker/u4:1+events_unbound	19:20:00	1
3226050	99	67	53,10	cyclictest	53	-21	kswapd0	22:40:07	0
3226051	99	65	58,5	cyclictest	3389989	-21	kworker/u4:3+events_unbound	23:42:21	1
3226051	99	65	48,5	cyclictest	3272641	-21	kworker/u4:9+events_unbound	22:05:00	1
3226050	99	65	56,5	cyclictest	3305302	-21	latency_hist	22:05:02	0
3226050	99	65	14,42	cyclictest	3226025	-21	munin-run	19:10:00	0
3226051	99	63	55,6	cyclictest	3428932	-21	kworker/u4:2+events_unbound	00:28:34	1
3226050	99	63	49,9	cyclictest	37	-21	kcompactd0	23:00:16	0
3226050	99	63	49,9	cyclictest	3257068	-21	diskmemload	22:20:01	0
3226051	99	59	53,4	cyclictest	3227283	-21	kworker/u4:10+events_unbound	19:41:46	1
3226051	99	58	49,7	cyclictest	3418132	-21	latency_hist	00:15:01	1
3226050	99	58	38,17	cyclictest	3262899	-21	timerandwakeup	21:15:38	0
3226050	99	58	30,12	cyclictest	3266303	-21	ssh	21:20:19	0
3226050	99	58	11,22	cyclictest	3310575	-21	ntpq	22:10:32	0
3226051	99	57	50,5	cyclictest	3423929	-21	/usr/sbin/munin	00:20:40	1
3226051	99	57	50,5	cyclictest	3307421	-21	kworker/u4:3+events_unbound	22:07:08	1
3226051	99	55	48,5	cyclictest	3226048	-21	cyclictest	22:40:02	1
3226050	99	55	45,7	cyclictest	3388427	-21	gltestperf	23:40:21	0
3226050	99	55	42,9	cyclictest	3331874	-21	grep	22:35:22	0
3226050	99	55	37,9	cyclictest	3229875	-21	kworker/u4:10	19:25:00	0
3226051	99	54	47,5	cyclictest	3437682	-21	kworker/u4:2+events_unbound	00:39:59	1
3226051	99	54	47,5	cyclictest	3294785	-21	kworker/u4:4+events_unbound	22:20:16	1
3226050	99	54	8,37	cyclictest	0	-21	swapper/0	20:05:12	0
3226050	99	54	42,8	cyclictest	3383925	-21	/usr/sbin/munin	23:35:20	0
3226051	99	53	5,45	cyclictest	3431932	-21	sshd	00:30:29	1
3226051	99	53	46,5	cyclictest	3232492	-21	kworker/u4:17+events_unbound	19:56:46	1
3226051	99	53	38,11	cyclictest	0	-21	swapper/1	23:50:38	1
3226050	99	53	44,6	cyclictest	3359760	-21	kworker/u4:2+events_unbound	23:10:00	0
3226050	99	53	43,8	cyclictest	3434320	-21	sshd	00:33:34	0
3226050	99	53	32,18	cyclictest	0	-21	swapper/0	22:45:27	0
3226051	99	52	9,34	cyclictest	3375852	-21	ssh	23:25:36	1
3226051	99	52	45,5	cyclictest	3398798	-21	kworker/u4:0+events_unbound	23:55:59	1
3226051	99	52	43,7	cyclictest	3283970	-21	cut	21:40:22	1
3226050	99	52	40,10	cyclictest	3397708	-21	ssh	23:50:38	0
3226050	99	52	32,17	cyclictest	3416441	-21	kworker/u4:0-rpciod	00:13:28	0
3226050	99	52	32,15	cyclictest	0	-21	swapper/0	22:05:12	0
3226050	99	52	28,21	cyclictest	0	-21	swapper/0	22:30:41	0
3226050	99	52	28,21	cyclictest	0	-21	swapper/0	19:10:15	0
3226050	99	52	21,11	cyclictest	3296526	-21	cat	21:55:02	0
3226050	99	52	11,19	cyclictest	3232531	-21	idleruntime-cro	19:35:00	0
3226051	99	51	6,36	cyclictest	3328080	-21	ssh	22:30:37	1
3226051	99	51	41,7	cyclictest	3249265	-21	systemd	20:36:53	1
3226051	99	51	40,7	cyclictest	0	-21	swapper/1	20:30:13	1
3226050	99	51	6,24	cyclictest	3297555	-21	ssh	21:55:35	0
3226050	99	51	21,18	cyclictest	0	-21	swapper/0	21:44:28	0
3226050	99	51	16,10	cyclictest	0	-21	swapper/0	00:20:31	0
3226051	99	50	43,5	cyclictest	3418800	-21	gltestperf	00:15:23	1
3226051	99	50	43,5	cyclictest	3418800	-21	gltestperf	00:15:22	1
3226051	99	50	43,5	cyclictest	3250571	-21	kworker/u4:4+events_unbound	21:26:32	1
3226051	99	50	41,7	cyclictest	3325113	-21	kworker/u4:0-rpciod	23:05:19	1
3226051	99	50	37,11	cyclictest	3393387	-21	mailstats	23:45:44	1
3226051	99	50	37,11	cyclictest	3393387	-21	mailstats	23:45:44	1
3226050	99	50	42,5	cyclictest	3234583	-21	sshd	19:40:28	0
3226051	99	49	42,5	cyclictest	3405651	-21	fschecks_count	00:00:18	1
3226051	99	49	41,6	cyclictest	378	-21	dbus-daemon	21:57:05	1
3226051	99	49	41,6	cyclictest	3285940	-21	kworker/u4:2+events_unbound	22:47:12	1
3226051	99	49	40,7	cyclictest	3251832	-21	systemd	20:46:54	1
3226050	99	49	42,5	cyclictest	3371616	-21	mailstats	23:20:38	0
3226050	99	49	4,22	cyclictest	3439532	-21	munin-run	00:40:00	0
3226050	99	49	40,7	cyclictest	3370465	-21	latency_hist	23:20:02	0
3226050	99	49	40,6	cyclictest	3253710	-21	fschecks_time	20:55:19	0
3226050	99	49	37,9	cyclictest	3279794	-21	sed	21:35:23	0
3226050	99	49	29,5	cyclictest	17	1	rcu_preempt	21:25:34	0
3226050	99	49	25,3	cyclictest	15	1	ktimers/0	21:45:26	0
3226050	99	49	15,12	cyclictest	0	-21	swapper/0	21:10:27	0
3226051	99	48	18,8	cyclictest	3325113	-21	kworker/u4:0+events_unbound	23:10:24	1
3226051	99	48	18,8	cyclictest	3325113	-21	kworker/u4:0+events_unbound	23:10:24	1
3226050	99	48	5,33	cyclictest	0	-21	swapper/0	19:55:12	0
3226050	99	48	41,5	cyclictest	3430925	-21	latency_hist	00:30:01	0
3226050	99	48	40,5	cyclictest	3361875	-21	ssh	23:10:10	0
3226050	99	48	40,5	cyclictest	3361875	-21	ssh	23:10:10	0
3226050	99	48	28,16	cyclictest	0	-21	swapper/0	20:05:02	0
3226051	99	47	40,5	cyclictest	3226048	-21	cyclictest	22:50:34	1
3226051	99	47	39,6	cyclictest	3364157	-21	kworker/u4:3+events_unbound	23:20:17	1
3226051	99	47	39,6	cyclictest	3333936	-21	kworker/u4:6+events_unbound	23:32:59	1
3226050	99	47	40,5	cyclictest	3345546	-21	run-parts	22:50:39	0
3226050	99	47	39,6	cyclictest	3349067	-21	cpu	22:55:15	0
3226050	99	47	39,5	cyclictest	3375507	-21	/usr/sbin/munin	23:25:21	0
3226050	99	47	39,5	cyclictest	3324099	-21	unixbench_singl	22:25:40	0
3226050	99	47	25,17	cyclictest	3255779	-21	modprobe	21:05:01	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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