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 highest latencies:

System rack7slot2.osadl.org (updated Thu Mar 05, 2026 00:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3868198	99	125	118,6	cyclictest	3923783	-21	kworker/u4:7+events_unbound	21:40:59	1
3868198	99	110	103,5	cyclictest	4037072	-21	kworker/u4:1+events_unbound	00:28:45	1
3868198	99	106	99,5	cyclictest	3963559	-21	kworker/u4:2+events_unbound	22:31:12	1
3868196	99	96	88,6	cyclictest	4037073	-21	kworker/u4:3+events_unbound	00:18:27	0
3868196	99	96	88,6	cyclictest	4015780	-21	kworker/u4:6+events_unbound	23:52:33	0
3868196	99	95	88,5	cyclictest	3928314	-21	kworker/u4:3+events_unbound	21:56:04	0
3868196	99	94	84,8	cyclictest	3959063	-21	kworker/u4:3+events_unbound	22:21:07	0
3868198	99	93	85,5	cyclictest	3886038	-21	kworker/u4:1+events_unbound	20:45:49	1
3868196	99	92	64,11	cyclictest	4015780	-21	kworker/u4:6-xprtiod	23:40:13	0
3868198	99	91	83,6	cyclictest	3896338	-21	kworker/u4:8+events_unbound	21:00:53	1
3868196	99	91	86,3	cyclictest	3870691	-21	kworker/u4:14+events_unbound	19:25:36	0
3868198	99	90	82,6	cyclictest	3923783	-21	kworker/u4:7+events_unbound	22:11:07	1
3868196	99	88	69,17	cyclictest	3905712	-21	kworker/u4:17+events_unbound	21:25:57	0
3868198	99	87	79,6	cyclictest	3873271	-21	kworker/u4:1+events_unbound	19:35:38	1
3868198	99	83	76,5	cyclictest	3886041	-21	kworker/u4:5+events_unbound	20:30:48	1
3868196	99	81	72,7	cyclictest	4020184	-21	kworker/u4:13+events_unbound	23:58:16	0
3868196	99	81	72,7	cyclictest	4020184	-21	kworker/u4:13+events_unbound	23:58:15	0
3868196	99	80	72,6	cyclictest	4058965	-21	kworker/u4:4+events_unbound	00:12:40	0
3868196	99	80	67,6	cyclictest	4080197	-21	kworker/u4:1+events_unbound	00:38:55	0
3868196	99	80	62,8	cyclictest	4037072	-21	kworker/u4:1+events_unbound	23:50:00	0
3868198	99	78	69,6	cyclictest	3866918	-21	kworker/u4:1+events_unbound	19:15:36	1
3868196	99	78	71,5	cyclictest	3936660	-21	kworker/u4:8+events_unbound	22:01:06	0
3868196	99	77	68,6	cyclictest	3932830	-21	kworker/u4:5+events_unbound	22:10:00	0
3868196	99	77	68,6	cyclictest	3932830	-21	kworker/u4:5+events_unbound	22:10:00	0
3868196	99	76	68,6	cyclictest	3985567	-21	kworker/u4:3+events_unbound	23:16:19	0
3868198	99	75	61,6	cyclictest	3891234	-21	kworker/u4:3+events_unbound	20:50:50	1
3868196	99	75	59,6	cyclictest	3914760	-21	kworker/u4:5+events_unbound	21:30:58	0
3868198	99	74	66,6	cyclictest	3896338	-21	kworker/u4:8+events_unbound	21:05:54	1
3868198	99	74	66,6	cyclictest	3875812	-21	kworker/u4:8+events_unbound	19:40:39	1
3868198	99	74	65,6	cyclictest	3884757	-21	kworker/u4:13+events_unbound	20:15:01	1
3868196	99	74	56,5	cyclictest	3896338	-21	kworker/u4:8+events_unbound	21:05:01	0
3868198	99	73	66,5	cyclictest	3878375	-21	kworker/u4:4+events_unbound	19:55:43	1
3868198	99	73	65,5	cyclictest	0	-21	swapper/1	23:20:30	1
3868196	99	71	63,6	cyclictest	3880919	-21	kworker/u4:6+events_unbound	20:55:53	0
3868196	99	70	28,20	cyclictest	54	-21	kswapd0	22:10:09	0
3868196	99	68	3,53	cyclictest	3988152	-21	ssh	22:50:30	0
3868196	99	67	46,8	cyclictest	3910257	-21	kworker/u4:3+events_unbound	21:25:01	0
3868198	99	65	57,6	cyclictest	3886041	-21	kworker/u4:5+events_unbound	20:20:46	1
3868198	99	65	49,6	cyclictest	3945650	-21	kworker/u4:14+events_unbound	22:01:59	1
3868198	99	64	42,7	cyclictest	4032708	-21	kworker/u4:2+events_unbound	23:42:45	1
3868196	99	64	56,6	cyclictest	3901849	-21	kworker/u4:0+events_unbound	21:19:00	0
3868196	99	63	55,6	cyclictest	3976916	-21	kworker/u4:1+events_unbound	22:46:14	0
3868198	99	62	54,6	cyclictest	4001422	-21	/usr/sbin/munin	23:05:39	1
3868198	99	61	47,9	cyclictest	0	-21	swapper/1	21:25:27	1
3868196	99	61	41,7	cyclictest	3928315	-21	kworker/u4:4+events_unbound	21:47:44	0
3868198	99	60	49,8	cyclictest	0	-21	swapper/1	00:10:36	1
3868196	99	60	52,6	cyclictest	3878375	-21	kworker/u4:4+events_unbound	20:05:43	0
3868198	99	59	52,5	cyclictest	3886039	-21	kworker/u4:2+events_unbound	20:39:03	1
3868198	99	59	48,9	cyclictest	3979465	-21	kernelversion	22:40:21	1
3868196	99	59	47,5	cyclictest	4032708	-21	kworker/u4:2+events_unbound	00:25:44	0
3868196	99	59	37,10	cyclictest	4020184	-21	kworker/u4:13+events_unbound	00:00:22	0
3868198	99	57	40,14	cyclictest	4043429	-21	apt-key	23:55:02	1
3868198	99	57	37,16	cyclictest	0	-21	swapper/1	21:35:35	1
3868196	99	57	48,6	cyclictest	3923784	-21	kworker/u4:8+events_unbound	21:40:00	0
3868196	99	57	42,5	cyclictest	3967970	-21	kworker/u4:10+events_unbound	22:27:44	0
3868196	99	57	42,5	cyclictest	3891234	-21	kworker/u4:3+events_unbound	20:45:00	0
3868198	99	56	48,6	cyclictest	3919274	-21	kworker/u4:2+events_unbound	21:34:34	1
3868196	99	56	48,6	cyclictest	3878376	-21	kworker/u4:9+events_unbound	19:50:40	0
3868196	99	56	28,17	cyclictest	3886041	-21	kworker/u4:5+events_unbound	20:19:02	0
3868198	99	55	48,5	cyclictest	3989007	-21	systemd	22:51:13	1
3868198	99	55	45,7	cyclictest	4061857	-21	switchtime	00:15:38	1
3868198	99	55	44,8	cyclictest	4009580	-21	/usr/sbin/munin	23:15:26	1
3868196	99	55	48,5	cyclictest	4015780	-21	kworker/u4:6+events_unbound	23:36:00	0
3868198	99	54	47,5	cyclictest	4015782	-21	kworker/u4:12+events_unbound	23:37:42	1
3868198	99	54	42,8	cyclictest	3892191	-21	find	20:40:33	1
3868198	99	54	38,14	cyclictest	27	1	ktimers/1	00:37:00	1
3868198	99	53	45,6	cyclictest	4032708	-21	kworker/u4:2+events_unbound	23:49:00	1
3868198	99	53	43,7	cyclictest	4044109	-21	gltestperf	23:55:26	1
3868198	99	53	43,7	cyclictest	4044109	-21	gltestperf	23:55:25	1
3868196	99	53	46,5	cyclictest	4006962	-21	kworker/u4:10+events_unbound	23:20:02	0
3868198	99	52	45,5	cyclictest	4045841	-21	kworker/u4:10+events_unbound	00:01:59	1
3868198	99	52	39,9	cyclictest	0	-21	swapper/1	00:05:33	1
3868198	99	52	39,6	cyclictest	0	-21	swapper/1	22:05:27	1
3868198	99	52	39,6	cyclictest	0	-21	swapper/1	22:05:26	1
3868196	99	52	45,5	cyclictest	4058966	-21	kworker/u4:5+events_unbound	00:33:53	0
3868196	99	52	41,9	cyclictest	534	-21	in:imuxsock	19:15:34	0
3868198	99	51	43,5	cyclictest	3966750	-21	awk	22:25:44	1
3868198	99	51	42,6	cyclictest	3866919	-21	kworker/u4:2+events_unbound	19:31:42	1
3868198	99	51	34,10	cyclictest	0	-21	swapper/1	23:30:27	1
3868196	99	51	45,4	cyclictest	3936660	-21	kworker/u4:8+events_unbound	22:15:43	0
3868196	99	51	42,7	cyclictest	3888681	-21	systemd	20:25:46	0
3868198	99	50	43,5	cyclictest	3998156	-21	kworker/u4:1+events_unbound	23:11:59	1
3868198	99	50	43,5	cyclictest	3998156	-21	kworker/u4:1+events_unbound	23:11:58	1
3868198	99	50	41,6	cyclictest	3869476	-21	grep	19:15:01	1
3868198	99	50	39,7	cyclictest	3888528	-21	timerwakeupswit	20:25:44	1
3868196	99	50	43,5	cyclictest	3992067	-21	/usr/sbin/munin	22:55:20	0
3868196	99	50	43,5	cyclictest	3985567	-21	kworker/u4:3+events_unbound	23:05:59	0
3868196	99	50	42,6	cyclictest	3985567	-21	kworker/u4:3+events_unbound	23:11:19	0
3868196	99	50	42,6	cyclictest	3985567	-21	kworker/u4:3+events_unbound	23:11:19	0
3868196	99	50	38,8	cyclictest	0	-21	swapper/0	00:20:17	0
3868198	99	49	42,5	cyclictest	4045211	-21	kworker/u4:9+events_unbound	00:32:01	1
3868198	99	49	42,5	cyclictest	3923783	-21	kworker/u4:7+events_unbound	21:49:58	1
3868198	99	49	42,5	cyclictest	3868127	-21	kworker/u4:11+events_unbound	19:24:02	1
3868198	99	49	39,8	cyclictest	3939623	-21	cut	21:55:18	1
3868196	99	49	42,5	cyclictest	3975015	-21	/usr/sbin/munin	22:35:21	0
3868196	99	49	41,6	cyclictest	4015780	-21	kworker/u4:6+events_unbound	00:07:44	0
3868196	99	49	30,16	cyclictest	3996816	-21	ntpq	23:00:32	0
3868196	99	49	24,6	cyclictest	3886038	-21	kworker/u4:1+events_unbound	20:32:38	0
3868198	99	48	41,5	cyclictest	3963559	-21	kworker/u4:2+events_unbound	22:22:44	1
3868198	99	48	30,8	cyclictest	17	1	rcu_preempt	00:20:20	1
3868198	99	48	20,15	cyclictest	3904521	-21	ntpq	21:15:33	1
3868196	99	48	41,5	cyclictest	4022393	-21	fschecks_time	23:30:18	0
3868196	99	48	41,5	cyclictest	3972450	-21	kworker/u4:13+events_unbound	22:40:03	0
3868196	99	48	40,6	cyclictest	3932831	-21	kworker/u4:6+events_unbound	21:50:59	0
3868196	99	48	40,6	cyclictest	3871997	-21	kworker/u4:15+events_unbound	19:45:40	0
3868198	99	47	40,5	cyclictest	3993729	-21	kworker/u4:7+events_unbound	23:04:01	1
3868198	99	47	39,5	cyclictest	3899790	-21	ssh	21:10:21	1
3868198	99	47	38,6	cyclictest	3983651	-21	tune2fs	22:45:20	1
3868198	99	47	37,6	cyclictest	0	-21	swapper/1	20:00:25	1
3868198	99	47	33,10	cyclictest	3936025	-21	sed	21:50:39	1
3868198	99	47	32,10	cyclictest	0	-21	swapper/1	19:25:15	1
3868198	99	47	30,5	cyclictest	3880919	-21	kworker/u4:6+events_unbound	20:55:54	1
3868198	99	47	14,20	cyclictest	3957631	-21	ssh	22:15:29	1
3868196	99	47	39,5	cyclictest	3880921	-21	kworker/u4:8+events_unbound	20:00:33	0
3868196	99	47	37,7	cyclictest	3873867	-21	gltestperf	19:30:19	0
3868196	99	47	23,21	cyclictest	3876353	-21	fschecks_time	19:40:18	0
3868198	99	46	39,5	cyclictest	3909418	-21	unixbench_multi	21:20:38	1
3868198	99	46	39,5	cyclictest	3469649	-21	kworker/u4:5+events_unbound	20:07:59	1
3868198	99	46	38,5	cyclictest	27	1	ktimers/1	22:56:47	1
3868196	99	46	42,2	cyclictest	0	-21	swapper/0	23:25:25	0
3868196	99	46	40,4	cyclictest	3970092	-21	aten2__	22:30:14	0
3868196	99	46	39,5	cyclictest	3891234	-21	kworker/u4:3+flush-0:52	20:45:48	0
3868196	99	46	39,5	cyclictest	3890759	-21	ntp_kernel_pll_	20:35:26	0
3868196	99	46	39,5	cyclictest	3868125	-21	kworker/u4:8+events_unbound	19:20:36	0
3868196	99	46	37,7	cyclictest	3883700	-21	aten2__	20:10:14	0
3868196	99	46	32,6	cyclictest	3851865	-21	kworker/u4:13+events_unbound	19:10:23	0
3868198	99	45	38,5	cyclictest	3974690	-21	df_abs	22:35:16	1
3868198	99	45	33,8	cyclictest	0	-21	swapper/1	23:25:15	1
3868198	99	44	35,7	cyclictest	3868254	-21	latency_hist	19:10:02	1
3868198	99	44	31,9	cyclictest	3886091	-21	sendmail	20:20:00	1
3868196	99	44	37,5	cyclictest	3903519	-21	latency_hist	21:15:02	0
3868196	99	44	36,6	cyclictest	3894090	-21	aten_r7power_po	20:50:15	0
3868196	99	44	36,6	cyclictest	3886288	-21	aten2__	20:20:16	0
3868196	99	44	34,7	cyclictest	3927896	-21	ssh	21:41:36	0
3868196	99	43	36,5	cyclictest	3880618	-21	cat	19:55:36	0
3868198	99	42	34,5	cyclictest	3878679	-21	grep	19:50:13	1
3868196	99	42	35,5	cyclictest	3898116	-21	fschecks_time	21:05:18	0
3868196	99	42	25,4	cyclictest	0	-21	swapper/0	19:40:01	0
3868198	99	41	33,6	cyclictest	3878292	-21	unixbench_multi	19:45:38	1
3868196	99	31	4,19	cyclictest	3868174	-21	munin-run	19:10:00	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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