OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #f, slot #4

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8
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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 rackfslot4s.osadl.org (updated Mon Dec 08, 2025 00:44:33)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2922	2	119	0,2	chrt	2923	-21	ld	00:26:30	0
2312	2	116	0,1	sleep0	2314	-21	aten2.4_rfpower	20:30:25	0
7350	2	110	0,2	chrt	7351	-21	ssh	00:35:28	0
16198	2	110	0,2	sleep0	16199	-21	grep	23:52:14	0
5516	2	109	0,2	chrt	5517	-21	sleep	21:36:34	0
12405	2	106	0,2	chrt	12407	-21	sed	20:50:09	0
22383	2	104	0,2	sleep0	22386	-21	cut	22:06:49	0
11440	2	104	0,2	chrt	11441	-21	sleep	19:44:04	0
31145	2	102	0,2	chrt	31146	-21	ls	21:25:05	0
26431	2	101	0,2	chrt	26432	-21	sh	20:13:21	0
11452	2	100	0,1	sleep0	11453	-21	fschecks_count	22:45:49	0
22448	2	89	0,2	sleep0	22450	-21	sort	20:05:41	0
26458	90	78	6,22	cyclictest	9147	-21	apt	19:40:01	0
26458	90	78	15,16	cyclictest	3015	-21	ssh	21:32:12	0
26812	2	76	0,1	sleep0	26815	-21	cut	00:11:48	0
26458	90	76	6,10	cyclictest	15546	-21	apt-get	21:55:20	0
26458	90	75	4,19	cyclictest	5744	-21	users	19:31:31	0
26458	90	74	7,10	cyclictest	21541	-21	ssh	00:01:59	0
26458	90	74	6,10	cyclictest	31789	-21	ntpq	23:21:54	0
26458	90	74	5,12	cyclictest	28872	-21	ssh	23:16:36	0
26458	90	74	4,21	cyclictest	10022	-21	/usr/sbin/munin	21:45:35	0
26458	90	74	12,54	cyclictest	27588	-21	ntpq	19:10:59	0
26458	90	73	7,11	cyclictest	21274	-21	ntp_states	21:06:23	0
26458	90	73	6,20	cyclictest	6897	-21	apt-get	21:40:52	0
26458	90	73	6,20	cyclictest	13805	-21	memory	21:51:11	0
26458	90	73	4,19	cyclictest	3076	-21	python3	19:26:24	0
26458	90	73	4,17	cyclictest	802	-21	rm	23:25:26	0
26458	90	73	17,9	cyclictest	29918	-21	fschecks_count	20:20:36	0
26458	90	73	13,10	cyclictest	25511	-21	apt	00:10:00	0
26458	90	72	7,10	cyclictest	32386	-21	apt-get	22:25:26	0
26458	90	72	6,57	cyclictest	28006	-21	ntpq	20:15:58	0
26458	90	72	6,19	cyclictest	1575	-21	munin-run	00:25:01	0
26458	90	72	5,12	cyclictest	11733	-21	sshd	20:48:29	0
26458	90	72	5,11	cyclictest	9360	-21	ntpq	22:41:21	0
26458	90	72	5,10	cyclictest	25368	-21	ntp_states	22:11:50	0
26458	90	72	5,10	cyclictest	17182	-21	df	19:55:29	0
26458	90	72	4,18	cyclictest	5003	-21	df_inode	20:35:33	0
26458	90	72	4,18	cyclictest	4075	-21	hddtemp_smartct	23:30:56	0
26458	90	72	15,11	cyclictest	30419	-21	sh	00:17:52	0
26458	90	72	13,9	cyclictest	17648	-21	ntpq	22:56:21	0
26458	90	72	11,11	cyclictest	32657	-21	sh	21:27:07	0
26458	90	71	6,10	cyclictest	4449	-21	users	22:32:20	0
26458	90	71	5,20	cyclictest	31556	-21	latency_hist	19:20:02	0
26458	90	71	5,20	cyclictest	29620	-21	apt-get	22:20:21	0
26458	90	71	5,10	cyclictest	15456	-21	ntpq	19:51:07	0
26458	90	71	4,18	cyclictest	31980	-21	diskstats	19:20:32	0
26458	90	71	15,10	cyclictest	15783	-21	ssh	22:53:08	0
26458	90	70	6,17	cyclictest	18548	-21	ntpq	21:00:55	0
26458	90	70	5,20	cyclictest	26818	-21	apt-get	22:15:21	0
26458	90	70	5,18	cyclictest	25958	-21	rm	23:11:16	0
26458	90	70	5,12	cyclictest	19735	-21	df	20:00:28	0
26458	90	70	4,18	cyclictest	17905	-21	perl	23:55:52	0
26458	90	70	4,17	cyclictest	7649	-21	ntpq	23:36:57	0
26458	90	70	15,12	cyclictest	22470	-21	diskmemload	23:01:36	0
26458	90	70	14,10	cyclictest	25426	-21	seq	21:15:09	0
26458	90	69	6,11	cyclictest	2011	-21	munin-run	20:30:02	0
26458	90	69	5,20	cyclictest	23692	-21	ssh	21:11:20	0
26458	90	69	5,11	cyclictest	8192	-21	ntpq	20:40:55	0
26458	90	69	5,11	cyclictest	13021	-21	ntpq	19:46:17	0
26458	90	69	4,18	cyclictest	15108	-21	awk	20:55:25	0
26458	90	69	4,17	cyclictest	6572	-21	ntpq	22:36:21	0
26458	90	69	4,17	cyclictest	19361	-21	ssh	22:01:15	0
26458	90	69	16,9	cyclictest	22321	-21	telnet	23:05:39	0
26458	90	68	6,10	cyclictest	12752	-21	irqstats	23:46:06	0
26458	90	67	4,9	cyclictest	4608	-21	chrt	00:30:30	0
26458	90	67	4,17	cyclictest	9642	-21	hddtemp_smartct	23:40:57	0
26458	90	64	6,11	cyclictest	26470	-21	sort	19:10:02	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2024-02-27 - 12:39