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 all highest latencies:

System rack7slot2.osadl.org (updated Tue Jan 27, 2026 00:44:11)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2956429	99	110	101,7	cyclictest	3059422	-21	kworker/u4:5+events_unbound	22:42:44	0
2956429	99	108	99,7	cyclictest	3093254	-21	kworker/u4:7+events_unbound	23:37:55	0
2956430	99	106	94,7	cyclictest	0	-21	swapper/1	00:10:11	1
2956429	99	101	76,17	cyclictest	54	-21	kswapd0	00:10:13	0
2956429	99	99	91,6	cyclictest	3055053	-21	kworker/u4:16+events_unbound	22:27:40	0
2956429	99	96	88,6	cyclictest	3132667	-21	kworker/u4:2+events_unbound	00:23:05	0
2956429	99	90	84,4	cyclictest	3128281	-21	kworker/u4:10+events_unbound	23:53:02	0
2956429	99	86	78,6	cyclictest	3050678	-21	kworker/u4:12+events_unbound	22:22:40	0
2956429	99	79	71,6	cyclictest	3020513	-21	kworker/u4:6+events_unbound	21:47:34	0
2956429	99	77	61,14	cyclictest	3132667	-21	kworker/u4:2+events_unbound	23:58:03	0
2956429	99	73	65,6	cyclictest	3137065	-21	kworker/u4:8+events_unbound	00:03:03	0
2956429	99	73	65,5	cyclictest	2972970	-21	kworker/u4:10+events_unbound	20:30:02	0
2956429	99	72	55,5	cyclictest	3098266	-21	kworker/u4:10+events_unbound	23:17:54	0
2956429	99	71	65,4	cyclictest	3137065	-21	kworker/u4:8+events_unbound	00:20:00	0
2956429	99	71	52,6	cyclictest	3080739	-21	kworker/u4:0+events_unbound	23:32:57	0
2956429	99	70	62,6	cyclictest	3020510	-21	kworker/u4:0+events_unbound	22:02:35	0
2956430	99	67	7,44	cyclictest	3092188	-21	ssh	23:10:25	1
2956430	99	65	53,9	cyclictest	54	-21	kswapd0	22:40:01	1
2956429	99	65	59,4	cyclictest	3016058	-21	kworker/u4:8+events_unbound	21:42:32	0
2956429	99	65	56,6	cyclictest	2984330	-21	kworker/u4:5+events_unbound	21:25:01	0
2956429	99	64	60,3	cyclictest	3059422	-21	kworker/u4:5+events_unbound	22:47:47	0
2956429	99	63	48,8	cyclictest	255	50	irq/23-42890000.ethernet	21:55:11	0
2956430	99	62	55,5	cyclictest	3123891	-21	kworker/u4:3+events_unbound	23:48:01	1
2956429	99	62	53,7	cyclictest	2993698	-21	kworker/u4:14+events_unbound	21:37:32	0
2956430	99	61	52,7	cyclictest	388	-21	dbus-daemon	22:42:42	1
2956429	99	61	56,3	cyclictest	255	50	irq/23-42890000.ethernet	22:35:28	0
2956429	99	61	54,5	cyclictest	3162469	-21	kworker/u4:2+events_unbound	00:31:59	0
2956429	99	61	54,5	cyclictest	3041895	-21	kworker/u4:4+events_unbound	22:32:42	0
2956429	99	61	54,5	cyclictest	3041895	-21	kworker/u4:4+events_unbound	22:32:42	0
2956429	99	59	51,5	cyclictest	2961442	-21	kworker/u4:4+events_unbound	20:02:22	0
2956429	99	59	43,9	cyclictest	54	-21	kswapd0	00:35:21	0
2956429	99	59	37,18	cyclictest	0	-21	swapper/0	23:00:33	0
2956430	99	58	6,40	cyclictest	3036117	-21	ssh	22:05:27	1
2956430	99	58	52,4	cyclictest	27	1	ktimers/1	23:36:43	1
2956430	99	58	49,7	cyclictest	2985614	-21	systemd	21:02:27	1
2956429	99	57	46,8	cyclictest	3157442	-21	unixbench_multi	00:25:43	0
2956429	99	57	42,12	cyclictest	54	-21	kswapd0	23:25:08	0
2956429	99	57	42,12	cyclictest	54	-21	kswapd0	23:25:07	0
2956430	99	56	48,6	cyclictest	410	-21	systemd-logind	23:07:51	1
2956430	99	56	47,6	cyclictest	2956426	-21	cyclictest	22:30:33	1
2956430	99	56	47,6	cyclictest	2956426	-21	cyclictest	22:30:32	1
2956429	99	56	49,5	cyclictest	3093254	-21	kworker/u4:7+events_unbound	23:42:58	0
2956429	99	56	49,5	cyclictest	3093254	-21	kworker/u4:7+events_unbound	23:42:58	0
2956429	99	56	48,5	cyclictest	3045167	-21	timerwakeupswit	22:15:39	0
2956430	99	55	42,7	cyclictest	0	-21	swapper/1	21:20:36	1
2956429	99	55	48,5	cyclictest	3007109	-21	kworker/u4:3+events_unbound	21:32:31	0
2956429	99	55	43,5	cyclictest	2984328	-21	kworker/u4:2+events_unbound	21:05:01	0
2956430	99	54	46,5	cyclictest	0	-21	swapper/1	21:45:23	1
2956430	99	54	45,5	cyclictest	3082631	-21	latency_hist	23:00:02	1
2956430	99	54	39,9	cyclictest	3137065	-21	kworker/u4:8-writeback	00:04:24	1
2956430	99	54	34,6	cyclictest	17	1	rcu_preempt	23:20:00	1
2956430	99	54	14,13	cyclictest	3152556	-21	ntpq	00:20:26	1
2956430	99	52	45,5	cyclictest	2992481	-21	ld	21:15:33	1
2956430	99	52	45,4	cyclictest	3049238	-21	proc_pri	22:20:34	1
2956430	99	52	44,6	cyclictest	3010911	-21	kworker/u4:5-rpciod	21:40:38	1
2956429	99	52	36,14	cyclictest	3101538	-21	vmstat	23:20:43	0
2956430	99	51	43,5	cyclictest	2976030	-21	fschecks_time	20:25:20	1
2956429	99	51	45,5	cyclictest	2957636	-21	kworker/u4:11+events_unbound	19:30:01	0
2956429	99	51	44,5	cyclictest	2960184	-21	kworker/u4:3+events_unbound	20:10:00	0
2956429	99	51	43,6	cyclictest	3059422	-21	kworker/u4:5+events_unbound	23:14:09	0
2956429	99	51	43,5	cyclictest	2971718	-21	kworker/u4:2+events_unbound	20:20:01	0
2956429	99	51	39,9	cyclictest	2965341	-21	cron	19:45:01	0
2956429	99	51	32,5	cyclictest	3039452	-21	munin-plugin-st	22:10:01	0
2956429	99	51	19,27	cyclictest	0	-21	swapper/0	23:45:08	0
2956430	99	50	42,6	cyclictest	0	-21	swapper/1	00:30:16	1
2956430	99	50	40,8	cyclictest	3117826	-21	fschecks_time	23:40:20	1
2956430	99	50	40,8	cyclictest	3117826	-21	fschecks_time	23:40:20	1
2956430	99	50	35,12	cyclictest	3105366	-21	ntp_offset	23:25:37	1
2956430	99	50	35,12	cyclictest	3105366	-21	ntp_offset	23:25:36	1
2956429	99	50	43,5	cyclictest	2967833	-21	kworker/u4:1+events_unbound	20:42:27	0
2956430	99	49	40,7	cyclictest	2967833	-21	kworker/u4:1+events_unbound	19:55:00	1
2956430	99	49	39,7	cyclictest	3101271	-21	switchtime	23:20:40	1
2956429	99	49	40,7	cyclictest	2972972	-21	systemd	20:12:22	0
2956430	99	48	41,5	cyclictest	2956426	-21	cyclictest	23:32:56	1
2956430	99	48	39,6	cyclictest	3041897	-21	kworker/u4:6-rpciod	22:15:01	1
2956429	99	48	39,7	cyclictest	3078913	-21	fschecks_count	22:55:18	0
2956429	99	48	39,7	cyclictest	3075421	-21	unixbench-2d	22:50:37	0
2956429	99	48	37,8	cyclictest	2967980	-21	apt-key	19:55:01	0
2956429	99	48	30,15	cyclictest	2995730	-21	sendmail	21:20:01	0
2956430	99	47	39,5	cyclictest	3026755	-21	diskmemload	21:55:09	1
2956430	99	47	39,5	cyclictest	0	-21	swapper/1	19:40:27	1
2956430	99	47	38,7	cyclictest	3131650	-21	unixbench_singl	23:55:39	1
2956430	99	47	38,7	cyclictest	3083035	-21	aten_r7power_en	23:00:15	1
2956430	99	47	37,8	cyclictest	2974286	-21	sendmail	20:20:00	1
2956430	99	47	37,7	cyclictest	2986100	-21	fschecks_count	21:05:18	1
2956430	99	47	37,6	cyclictest	0	-21	swapper/1	23:50:34	1
2956429	99	47	39,6	cyclictest	2977001	-21	aten2__	20:30:15	0
2956429	99	47	38,7	cyclictest	2968434	-21	fschecks_time	19:55:23	0
2956429	99	47	28,17	cyclictest	0	-21	swapper/0	21:50:36	0
2956429	99	47	28,17	cyclictest	0	-21	swapper/0	21:50:36	0
2956430	99	46	40,4	cyclictest	2973006	-21	sh	20:14:59	1
2956430	99	46	39,5	cyclictest	3009347	-21	aten_r7power_po	21:35:17	1
2956430	99	46	38,6	cyclictest	3070828	-21	/usr/sbin/munin	22:45:35	1
2956430	99	46	37,7	cyclictest	2982228	-21	df_abs	20:50:18	1
2956429	99	46	39,5	cyclictest	2987317	-21	aten_r7power_en	21:10:14	0
2956429	99	46	38,5	cyclictest	3143012	-21	kworker/u4:3	00:10:00	0
2956429	99	46	38,5	cyclictest	3001212	-21	gcc	21:25:32	0
2956429	99	46	38,5	cyclictest	2962702	-21	unixbench_multi	19:30:42	0
2956430	99	45	36,7	cyclictest	2971751	-21	munin-run	20:10:01	1
2956430	99	45	35,8	cyclictest	3139194	-21	/usr/sbin/munin	00:05:17	1
2956430	99	45	35,7	cyclictest	0	-21	swapper/1	22:00:19	1
2956430	99	45	35,7	cyclictest	0	-21	swapper/1	21:50:34	1
2956430	99	45	35,7	cyclictest	0	-21	swapper/1	21:50:34	1
2956430	99	45	17,24	cyclictest	0	-21	swapper/1	00:35:43	1
2956429	99	45	37,6	cyclictest	2985831	-21	aten2__	21:05:14	0
2956429	99	45	37,6	cyclictest	2960223	-21	apt	19:24:59	0
2956429	99	45	36,7	cyclictest	3039877	-21	aten_r7power_po	22:10:17	0
2956429	99	45	29,5	cyclictest	2978026	-21	kworker/u4:17+events_unbound	20:35:59	0
2956430	99	44	37,5	cyclictest	2979330	-21	munin-plugin-st	20:40:01	1
2956430	99	44	36,6	cyclictest	3074995	-21	/usr/sbin/munin	22:50:28	1
2956430	99	44	36,5	cyclictest	2970516	-21	grep	20:05:01	1
2956430	99	44	35,7	cyclictest	3000612	-21	cpu	21:25:19	1
2956430	99	44	35,7	cyclictest	2962792	-21	systemd	19:32:17	1
2956430	99	44	34,8	cyclictest	2957636	-21	kworker/u4:11-events_power_efficient	19:15:37	1
2956430	99	44	34,7	cyclictest	0	-21	swapper/1	19:25:00	1
2956430	99	44	34,6	cyclictest	0	-21	swapper/1	22:25:28	1
2956430	99	44	13,27	cyclictest	3156929	-21	ssh	00:25:30	1
2956429	99	44	38,4	cyclictest	2965552	-21	aten2__	19:45:13	0
2956429	99	44	36,6	cyclictest	2983310	-21	aten_r7power_cu	20:55:16	0
2956429	99	44	36,6	cyclictest	2982362	-21	fschecks_time	20:50:20	0
2956429	99	44	36,5	cyclictest	2963384	-21	gltestperf	19:35:19	0
2956429	99	44	35,7	cyclictest	2975519	-21	systemd	20:22:22	0
2956430	99	43	36,5	cyclictest	3147931	-21	fschecks_time	00:15:21	1
2956430	99	43	36,5	cyclictest	2991328	-21	idleruntime-cro	21:15:01	1
2956430	99	43	35,5	cyclictest	3004790	-21	dpkg	21:30:11	1
2956429	99	43	35,6	cyclictest	2958078	-21	fschecks_count	19:15:18	0
2956429	99	43	35,6	cyclictest	0	-21	swapper/0	20:45:21	0
2956430	99	42	6,25	cyclictest	3044676	-21	ssh	22:15:23	1
2956429	99	42	23,5	cyclictest	3055053	-21	kworker/u4:16+rpciod	23:05:15	0
2956430	99	41	35,4	cyclictest	2980954	-21	df_abs	20:45:16	1
2956430	99	41	33,5	cyclictest	2974235	-21	kworker/u4:12-rpciod	20:40:19	1
2956430	99	41	32,7	cyclictest	2977754	-21	switchtime	20:30:35	1
2956430	99	41	32,7	cyclictest	2968464	-21	fschecks_time	19:55:22	1
2956430	99	41	32,7	cyclictest	2957549	-21	unixbench_multi	19:10:36	1
2956430	99	41	28,9	cyclictest	2983418	-21	wc	20:55:18	1
2956429	99	41	34,5	cyclictest	2957689	-21	munin-plugin-st	19:15:06	0
2956430	99	40	29,8	cyclictest	0	-21	swapper/1	19:35:35	1
2956430	99	39	28,8	cyclictest	0	-21	swapper/1	19:25:20	1
2956430	99	38	29,6	cyclictest	0	-21	swapper/1	19:10:01	1
2956430	99	38	24,9	cyclictest	2975543	-21	modprobe	20:25:01	1
2956430	99	37	30,5	cyclictest	0	-21	swapper/1	19:45:18	1
2956429	99	24	16,6	cyclictest	0	-21	swapper/0	19:10:02	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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