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 Wed Dec 24, 2025 00:44:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3036665	99	108	93,13	cyclictest	3237024	-21	kworker/u4:8+events_unbound	00:38:54	0
3036665	99	106	98,6	cyclictest	3187931	-21	kworker/u4:2+events_unbound	23:33:42	0
3036665	99	102	95,5	cyclictest	3183715	-21	kworker/u4:16+events_unbound	23:28:39	0
3036665	99	96	87,7	cyclictest	3199934	-21	kworker/u4:13+events_unbound	23:48:43	0
3036665	99	90	82,6	cyclictest	3049470	-21	kworker/u4:13+events_unbound	20:23:09	0
3036667	99	87	78,6	cyclictest	3046928	-21	kworker/u4:3+events_unbound	19:58:04	1
3036665	99	84	76,6	cyclictest	3146142	-21	kworker/u4:13+events_unbound	22:53:34	0
3036665	99	82	70,6	cyclictest	3158335	-21	kworker/u4:4+events_unbound	22:58:36	0
3036667	99	81	72,6	cyclictest	3020211	-21	kworker/u4:5+events_unbound	19:38:00	1
3036665	99	79	65,12	cyclictest	53	-21	kswapd0	21:55:12	0
3036667	99	75	66,6	cyclictest	3018958	-21	kworker/u4:1+events_unbound	19:43:01	1
3036665	99	74	66,6	cyclictest	3124650	-21	kworker/u4:2+events_unbound	22:28:29	0
3036667	99	73	64,6	cyclictest	3171036	-21	kworker/u4:5+events_unbound	23:18:13	1
3036665	99	72	41,27	cyclictest	3097065	-21	apt-get	21:45:09	0
3036665	99	68	60,6	cyclictest	3055882	-21	kworker/u4:0+events_unbound	20:38:10	0
3036667	99	67	60,5	cyclictest	3064800	-21	kworker/u4:3+events_unbound	21:00:01	1
3036665	99	66	60,5	cyclictest	3078145	-21	kworker/u4:9+events_unbound	21:23:19	0
3036665	99	66	48,6	cyclictest	3158337	-21	kworker/u4:8+events_unbound	23:06:44	0
3036667	99	63	56,5	cyclictest	3050764	-21	kworker/u4:15+events_unbound	20:13:06	1
3036665	99	63	54,7	cyclictest	3146145	-21	kworker/u4:16+events_unbound	22:43:33	0
3036665	99	62	55,5	cyclictest	3064799	-21	kworker/u4:1+events_unbound	21:03:17	0
3036665	99	62	55,5	cyclictest	3064799	-21	kworker/u4:1+events_unbound	21:03:16	0
3036665	99	62	54,6	cyclictest	3172762	-21	latency_hist	23:15:01	0
3036665	99	62	50,8	cyclictest	53	-21	kswapd0	23:05:02	0
3036665	99	62	50,5	cyclictest	3018958	-21	kworker/u4:1+events_unbound	19:17:00	0
3036665	99	61	45,10	cyclictest	3046959	-21	modprobe	19:50:00	0
3036667	99	60	52,6	cyclictest	3059692	-21	kworker/u4:9+events_unbound	20:53:13	1
3036665	99	60	47,6	cyclictest	3039171	-21	kworker/u4:8+events_unbound	20:03:04	0
3036665	99	60	45,6	cyclictest	3112401	-21	kworker/u4:14+events_unbound	22:06:01	0
3036665	99	60	37,19	cyclictest	3057171	-21	cron	20:30:00	0
3036667	99	59	52,5	cyclictest	3224512	-21	kworker/u4:10+events_unbound	00:20:02	1
3036667	99	58	49,7	cyclictest	3039171	-21	kworker/u4:8+events_unbound	20:33:10	1
3036665	99	58	53,3	cyclictest	3086770	-21	kworker/u4:7+events_unbound	21:33:20	0
3036665	99	58	50,6	cyclictest	3048201	-21	kworker/u4:5+events_unbound	19:53:02	0
3036667	99	57	51,4	cyclictest	3070129	-21	kworker/u4:1+events_unbound	21:20:01	1
3036667	99	57	47,7	cyclictest	3095361	-21	kworker/u4:11-rpciod	21:45:42	1
3036667	99	56	47,6	cyclictest	3020211	-21	kworker/u4:5+events_unbound	19:32:59	1
3036667	99	56	46,7	cyclictest	0	-21	swapper/1	23:00:32	1
3036665	99	56	48,6	cyclictest	3203170	-21	/usr/sbin/munin	23:50:45	0
3036665	99	56	48,5	cyclictest	3094218	-21	switchtime	21:40:37	0
3036667	99	55	48,5	cyclictest	3114583	-21	grep	22:05:22	1
3036667	99	55	47,5	cyclictest	3136609	-21	/usr/sbin/munin	22:30:43	1
3036667	99	55	46,6	cyclictest	3223256	-21	/usr/sbin/munin	00:15:24	1
3036667	99	55	46,6	cyclictest	3199202	-21	/usr/sbin/munin	23:45:43	1
3036665	99	55	7,44	cyclictest	3227517	-21	sh	00:20:31	0
3036667	99	54	10,31	cyclictest	3211097	-21	ssh	00:00:32	1
3036665	99	54	47,5	cyclictest	3166837	-21	kworker/u4:6+events_unbound	23:15:04	0
3036667	99	53	45,6	cyclictest	3078145	-21	kworker/u4:9+events_unbound	21:28:20	1
3036665	99	53	45,6	cyclictest	3179503	-21	kworker/u4:9+events_unbound	23:22:43	0
3036665	99	53	42,5	cyclictest	3150410	-21	kworker/u4:0+events_unbound	22:48:53	0
3036665	99	53	35,8	cyclictest	3039170	-21	kworker/u4:7+events_unbound	20:19:01	0
3036667	99	52	45,4	cyclictest	3148057	-21	aten_r7power_en	22:45:17	1
3036665	99	52	44,6	cyclictest	3111775	-21	kworker/u4:12+events_unbound	22:24:44	0
3036665	99	52	44,6	cyclictest	3052031	-21	kworker/u4:16+events_unbound	21:17:02	0
3036667	99	51	45,3	cyclictest	3086766	-21	kworker/u4:3+events_unbound	21:35:03	1
3036667	99	51	44,5	cyclictest	3235947	-21	switchtime	00:30:38	1
3036665	99	51	45,5	cyclictest	3046927	-21	kworker/u4:2+events_unbound	19:55:04	0
3036665	99	51	42,7	cyclictest	3212571	-21	kworker/u4:2+events_unbound	00:10:01	0
3036665	99	51	34,5	cyclictest	3175254	-21	kworker/u4:8+events_unbound	00:02:43	0
3036665	99	51	21,21	cyclictest	0	-21	swapper/0	21:55:02	0
3036667	99	50	43,5	cyclictest	3199934	-21	kworker/u4:13+events_unbound	23:51:59	1
3036667	99	50	43,5	cyclictest	3091087	-21	kworker/u4:10+events_unbound	22:15:02	1
3036667	99	50	39,7	cyclictest	3214711	-21	df_abs	00:05:19	1
3036667	99	50	36,11	cyclictest	0	-21	swapper/1	21:30:29	1
3036665	99	50	7,29	cyclictest	0	-21	swapper/0	19:30:09	0
3036665	99	50	42,6	cyclictest	3039171	-21	kworker/u4:8+events_unbound	20:45:04	0
3036665	99	50	42,5	cyclictest	3135554	-21	diskstats	22:30:19	0
3036665	99	50	35,6	cyclictest	3078145	-21	kworker/u4:9+events_unbound	21:29:36	0
3036667	99	49	43,4	cyclictest	3048203	-21	systemd	19:53:02	1
3036667	99	49	42,5	cyclictest	3207073	-21	proc_pri	23:55:40	1
3036667	99	49	41,5	cyclictest	3076817	-21	/usr/sbin/munin	21:20:25	1
3036667	99	49	2,42	cyclictest	3105691	-21	ssh	21:55:11	1
3036665	99	49	7,12	cyclictest	0	-21	swapper/0	21:35:11	0
3036665	99	49	42,5	cyclictest	3086769	-21	kworker/u4:6+events_unbound	22:00:58	0
3036665	99	49	41,6	cyclictest	3046927	-21	kworker/u4:2+events_unbound	20:05:03	0
3036665	99	49	36,6	cyclictest	3187930	-21	kworker/u4:1+events_unbound	23:56:03	0
3036665	99	49	31,15	cyclictest	3234656	-21	cut	00:30:01	0
3036665	99	49	31,15	cyclictest	3234656	-21	cut	00:30:00	0
3036665	99	49	30,4	cyclictest	3018958	-21	kworker/u4:1-rpciod	19:35:38	0
3036667	99	48	41,5	cyclictest	3231821	-21	processes	00:25:41	1
3036667	99	48	41,5	cyclictest	3231821	-21	processes	00:25:40	1
3036667	99	48	38,7	cyclictest	3037025	-21	df_abs	19:10:17	1
3036665	99	48	41,5	cyclictest	3119371	-21	/usr/sbin/munin	22:10:41	0
3036665	99	48	40,6	cyclictest	3220937	-21	kworker/u4:9+events_unbound	00:12:43	0
3036665	99	48	39,6	cyclictest	3068051	-21	diskmemload	21:10:21	0
3036665	99	48	26,19	cyclictest	0	-21	swapper/0	19:30:00	0
3036667	99	47	41,4	cyclictest	3219728	-21	unixbench-2d	00:10:40	1
3036667	99	47	41,4	cyclictest	3097079	-21	modprobe	21:45:01	1
3036667	99	47	40,5	cyclictest	3147677	-21	latency_hist	22:45:00	1
3036667	99	47	39,5	cyclictest	3193609	-21	latency_hist	23:40:02	1
3036667	99	47	38,7	cyclictest	3048200	-21	kworker/u4:4+events_unbound	20:08:05	1
3036667	99	47	38,6	cyclictest	3172734	-21	idleruntime-cro	23:15:00	1
3036667	99	47	33,6	cyclictest	3060764	-21	threads	20:40:38	1
3036665	99	47	41,5	cyclictest	3141233	-21	kworker/u4:9+events_unbound	22:36:44	0
3036665	99	47	39,6	cyclictest	3232842	-21	kworker/u4:4+events_unbound	00:31:59	0
3036665	99	47	36,9	cyclictest	3226463	-21	basename	00:20:00	0
3036667	99	46	39,5	cyclictest	3185849	-21	fschecks_time	23:30:20	1
3036667	99	46	39,5	cyclictest	3041807	-21	apt-key	19:30:01	1
3036667	99	46	39,4	cyclictest	3152849	-21	sed	22:50:28	1
3036667	99	46	38,6	cyclictest	3046927	-21	kworker/u4:2+events_unbound	20:05:02	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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