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 Fri Sep 11, 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
3493157	99	110	103,5	cyclictest	3516275	-21	kworker/u4:5+events_unbound	21:22:03	0
3493157	99	105	92,7	cyclictest	3633709	-21	kworker/u4:1+events_unbound	23:12:14	0
3493157	99	99	91,6	cyclictest	3147936	-21	kworker/u4:0+events_unbound	20:26:56	0
3493157	99	98	91,5	cyclictest	3566756	-21	kworker/u4:6+events_unbound	21:57:06	0
3493158	99	96	88,6	cyclictest	3500949	-21	kworker/u4:9+events_unbound	20:31:57	1
3493158	99	96	87,7	cyclictest	3516277	-21	kworker/u4:7+events_unbound	21:02:00	1
3493158	99	94	87,5	cyclictest	3481839	-21	kworker/u4:10+events_unbound	19:56:52	1
3493158	99	94	87,5	cyclictest	3481839	-21	kworker/u4:10+events_unbound	19:56:51	1
3493158	99	93	86,5	cyclictest	3516278	-21	kworker/u4:10+events_unbound	21:07:01	1
3493158	99	93	85,6	cyclictest	3481835	-21	kworker/u4:6+events_unbound	20:01:52	1
3493158	99	93	80,5	cyclictest	3503515	-21	kworker/u4:19+events_unbound	20:41:58	1
3493158	99	92	84,6	cyclictest	3496967	-21	kworker/u4:17+events_unbound	19:26:49	1
3493158	99	91	83,6	cyclictest	3500948	-21	kworker/u4:8+events_unbound	20:36:58	1
3493158	99	91	83,6	cyclictest	3500947	-21	kworker/u4:5+events_unbound	19:46:50	1
3493157	99	91	83,6	cyclictest	3593775	-21	kworker/u4:4+events_unbound	23:02:12	0
3493158	99	90	83,5	cyclictest	3516277	-21	kworker/u4:7+events_unbound	20:52:00	1
3493158	99	90	82,6	cyclictest	3496964	-21	kworker/u4:14+events_unbound	20:06:53	1
3493158	99	90	82,6	cyclictest	3490658	-21	kworker/u4:13+events_unbound	19:16:49	1
3493157	99	90	42,43	cyclictest	53	-21	kswapd0	00:35:12	0
3493158	99	88	80,6	cyclictest	3515003	-21	kworker/u4:0+events_unbound	20:46:58	1
3493157	99	81	73,6	cyclictest	3516277	-21	kworker/u4:7+events_unbound	20:56:59	0
3493157	99	78	70,6	cyclictest	3496964	-21	kworker/u4:14+events_unbound	19:51:52	0
3493158	99	77	69,6	cyclictest	3494376	-21	kworker/u4:2+events_unbound	19:11:48	1
3493157	99	77	70,5	cyclictest	3508619	-21	kworker/u4:2+events_unbound	20:16:57	0
3493157	99	71	64,5	cyclictest	3495668	-21	kworker/u4:9+events_unbound	19:21:49	0
3493157	99	64	52,6	cyclictest	3678125	-21	kworker/u4:4+events_unbound	00:07:23	0
3493157	99	60	52,6	cyclictest	3702752	-21	fschecks_count	00:30:19	0
3493157	99	60	44,5	cyclictest	3602803	-21	kworker/u4:8+events_unbound	22:53:45	0
3493157	99	60	42,14	cyclictest	3685092	-21	ssh	00:10:23	0
3493158	99	59	52,5	cyclictest	3647267	-21	kworker/u4:7+events_unbound	23:55:01	1
3493157	99	59	48,6	cyclictest	3495667	-21	kworker/u4:4+events_unbound	19:40:06	0
3493158	99	58	46,5	cyclictest	3495667	-21	kworker/u4:4+events_unbound	19:40:05	1
3493157	99	58	24,15	cyclictest	19	1	rcuc/0	23:55:29	0
3493157	99	57	46,9	cyclictest	53	-21	kswapd0	23:45:20	0
3493157	99	57	37,16	cyclictest	3569448	-21	ssh	22:00:12	0
3493158	99	56	49,5	cyclictest	3531424	-21	kworker/u4:1+events_unbound	21:35:03	1
3493158	99	56	49,5	cyclictest	3531424	-21	kworker/u4:1+events_unbound	21:35:02	1
3493158	99	56	46,7	cyclictest	37	-21	kcompactd0	22:50:16	1
3493157	99	56	49,5	cyclictest	3604919	-21	apt-get	22:40:15	0
3493158	99	55	48,5	cyclictest	3601012	-21	sh	22:35:21	1
3493158	99	55	46,6	cyclictest	3706663	-21	latency_hist	00:35:02	1
3493158	99	54	48,4	cyclictest	3592804	-21	timerwakeupswit	22:25:41	1
3493158	99	54	47,5	cyclictest	3602802	-21	kworker/u4:7+events_unbound	22:41:45	1
3493158	99	54	46,5	cyclictest	0	-21	swapper/1	23:35:34	1
3493158	99	54	40,6	cyclictest	3524035	-21	kworker/u4:6+events_unbound	21:25:46	1
3493157	99	54	47,5	cyclictest	3495667	-21	kworker/u4:4+events_unbound	19:25:46	0
3493157	99	54	45,6	cyclictest	3583927	-21	diskmemload	22:15:38	0
3493158	99	53	45,6	cyclictest	3640902	-21	gltestperf	23:20:20	1
3493158	99	53	45,6	cyclictest	3587146	-21	munin-node	22:20:11	1
3493158	99	53	45,6	cyclictest	3565691	-21	ld	21:55:26	1
3493158	99	53	39,6	cyclictest	3496964	-21	kworker/u4:14+events_unbound	19:50:02	1
3493157	99	53	46,5	cyclictest	3645666	-21	/usr/sbin/munin	23:25:30	0
3493157	99	53	45,6	cyclictest	3633716	-21	kworker/u4:9+events_unbound	23:17:01	0
3493157	99	53	32,17	cyclictest	3601557	-21	ssh	22:35:39	0
3493158	99	52	42,7	cyclictest	0	-21	swapper/1	21:15:13	1
3493157	99	52	45,5	cyclictest	3500949	-21	kworker/u4:9+events_unbound	20:30:46	0
3493157	99	52	45,5	cyclictest	3500948	-21	kworker/u4:8+events_unbound	20:35:03	0
3493158	99	51	43,6	cyclictest	400	-21	systemd-logind	21:32:03	1
3493158	99	51	43,6	cyclictest	3597298	-21	timerwakeupswit	22:30:46	1
3493158	99	51	29,19	cyclictest	0	-21	swapper/1	00:05:34	1
3493157	99	51	43,5	cyclictest	3557290	-21	unixbench_multi	21:45:40	0
3493158	99	50	43,5	cyclictest	3682610	-21	kworker/u4:1+events_unbound	00:10:57	1
3493158	99	50	43,5	cyclictest	3671765	-21	fschecks_count	23:55:21	1
3493158	99	50	43,5	cyclictest	3586883	-21	grep	22:20:01	1
3493158	99	50	43,5	cyclictest	0	-21	swapper/1	23:40:32	1
3493158	99	50	41,7	cyclictest	3511733	-21	fschecks_time	20:20:21	1
3493158	99	50	37,9	cyclictest	0	-21	swapper/1	23:05:31	1
3493158	99	50	34,12	cyclictest	3662979	-21	sort	23:45:22	1
3493157	99	50	43,5	cyclictest	3555789	-21	latency_hist	21:45:01	0
3493157	99	50	43,5	cyclictest	3529778	-21	ld	21:15:36	0
3493158	99	49	43,4	cyclictest	3147936	-21	kworker/u4:0-rpciod	19:32:18	1
3493158	99	49	42,5	cyclictest	3635823	-21	sed	23:15:01	1
3493158	99	49	40,6	cyclictest	0	-21	swapper/1	23:00:39	1
3493157	99	49	43,4	cyclictest	3640766	-21	tune2fs	23:20:18	0
3493157	99	49	42,5	cyclictest	3538514	-21	kernelversion	21:25:22	0
3493157	99	49	40,7	cyclictest	3524649	-21	forks	21:10:17	0
3493157	99	49	38,8	cyclictest	3560953	-21	grep	21:50:24	0
3493157	99	49	37,6	cyclictest	3496965	-21	kworker/u4:15+events_unbound	19:36:08	0
3493157	99	49	28,19	cyclictest	0	-21	swapper/0	19:15:35	0
3493157	99	49	26,21	cyclictest	0	-21	swapper/0	20:10:31	0
3493158	99	48	41,5	cyclictest	3646068	-21	grep	23:25:39	1
3493158	99	48	41,5	cyclictest	3622402	-21	sendmail-msp	23:00:00	1
3493158	99	48	41,5	cyclictest	3495667	-21	kworker/u4:4+events_unbound	19:23:48	1
3493158	99	48	35,6	cyclictest	3147936	-21	kworker/u4:0+events_unbound	20:26:24	1
3493157	99	48	30,15	cyclictest	0	-21	swapper/0	23:50:18	0
3493157	99	48	29,17	cyclictest	3516279	-21	kworker/u4:11-rpciod	21:09:59	0
3493158	99	47	40,5	cyclictest	0	-21	swapper/1	21:10:30	1
3493158	99	47	39,6	cyclictest	3698653	-21	/usr/sbin/munin	00:25:24	1
3493158	99	47	38,7	cyclictest	3521276	-21	unixbench_multi	20:55:37	1
3493158	99	47	37,8	cyclictest	3552106	-21	kernelversion	21:40:23	1
3493158	99	47	29,5	cyclictest	3516275	-21	kworker/u4:5+events_unbound	21:22:08	1
3493157	99	47	42,4	cyclictest	3589268	-21	kworker/u4:1+events_unbound	22:22:14	0
3493157	99	47	41,4	cyclictest	3620828	-21	kworker/u4:1+events_unbound	22:59:45	0
3493157	99	47	40,5	cyclictest	3676315	-21	gltestperf	00:00:21	0
3493157	99	47	40,5	cyclictest	3676315	-21	gltestperf	00:00:21	0
3493157	99	47	40,5	cyclictest	3579530	-21	unixbench_multi	22:10:41	0
3493157	99	47	40,5	cyclictest	3512138	-21	cat	20:20:37	0
3493157	99	47	39,5	cyclictest	3506116	-21	sendmail	20:00:00	0
3493157	99	47	39,5	cyclictest	3506116	-21	sendmail	20:00:00	0
3493157	99	47	36,9	cyclictest	3592168	-21	if_eth0	22:25:23	0
3493157	99	47	36,6	cyclictest	3508619	-21	kworker/u4:2+events_unbound	20:07:45	0
3493158	99	46	40,4	cyclictest	3707081	-21	aten_r7power_vo	00:35:23	1
3493158	99	46	39,5	cyclictest	3561789	-21	timerwakeupswit	21:50:46	1
3493158	99	46	38,6	cyclictest	3633710	-21	kworker/u4:2+events_unbound	23:32:17	1
3493158	99	46	38,5	cyclictest	0	-21	swapper/1	00:15:33	1
3493157	99	46	7,5	cyclictest	15	1	ktimers/0	23:35:37	0
3493157	99	46	39,5	cyclictest	3651016	-21	sshd	23:31:18	0
3493157	99	46	38,6	cyclictest	3613513	-21	ssh	22:50:00	0
3493158	99	45	39,4	cyclictest	0	-21	swapper/1	22:00:09	1
3493158	99	45	38,5	cyclictest	0	-21	swapper/1	00:00:30	1
3493158	99	45	38,5	cyclictest	0	-21	swapper/1	00:00:30	1
3493158	99	45	37,6	cyclictest	3560343	-21	latency_hist	21:50:01	1
3493158	99	45	37,5	cyclictest	3510396	-21	fschecks_time	20:15:20	1
3493158	99	45	36,7	cyclictest	3575126	-21	unixbench_multi	22:05:42	1
3493158	99	45	36,6	cyclictest	0	-21	swapper/1	22:45:18	1
3493158	99	45	18,24	cyclictest	27	1	ktimers/1	22:13:11	1
3493157	99	45	39,4	cyclictest	3543747	-21	unixbench_singl	21:30:41	0
3493157	99	45	37,6	cyclictest	3694380	-21	ntp_kernel_pll_	00:20:29	0
3493157	99	45	35,8	cyclictest	3596468	-21	fschecks_count	22:30:25	0
3493157	99	45	35,8	cyclictest	3506680	-21	gltestperf	20:00:21	0
3493157	99	45	35,7	cyclictest	3547894	-21	/usr/sbin/munin	21:35:37	0
3493157	99	45	35,7	cyclictest	3547894	-21	/usr/sbin/munin	21:35:37	0
3493157	99	45	32,10	cyclictest	3699188	-21	/usr/sbin/munin	00:25:45	0
3493157	99	45	29,12	cyclictest	53	-21	kswapd0	21:00:19	0
3493158	99	44	18,23	cyclictest	27	1	ktimers/1	00:20:59	1
3493157	99	44	36,6	cyclictest	3517481	-21	unixbench_multi	20:40:38	0
3493157	99	44	31,10	cyclictest	0	-21	swapper/0	22:05:33	0
3493157	99	44	23,18	cyclictest	0	-21	swapper/0	23:05:21	0
3493158	99	43	35,5	cyclictest	0	-21	swapper/1	23:15:16	1
3493158	99	43	32,8	cyclictest	0	-21	swapper/1	20:10:19	1
3493157	99	43	36,5	cyclictest	1069	-21	lldpd	19:48:05	0
3493158	99	42	30,10	cyclictest	3499838	-21	apt-key	19:35:02	1
3493157	99	42	35,5	cyclictest	3518844	-21	kworker/u4:13-rpciod	20:50:30	0
3493157	99	42	35,5	cyclictest	1073	-21	snmpd	23:41:19	0
3493157	99	42	34,6	cyclictest	3516278	-21	kworker/u4:10+events_unbound	20:46:04	0
3493157	99	42	34,6	cyclictest	3493474	-21	cpu	19:10:17	0
3493157	99	42	32,7	cyclictest	3498949	-21	gltestperf	19:30:20	0
3493157	99	42	31,7	cyclictest	3689411	-21	/usr/sbin/munin	00:15:17	0
3493157	99	31	21,7	cyclictest	19	1	rcuc/0	19:10:00	0
3493158	99	26	3,4	cyclictest	27	1	ktimers/1	19:10:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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