OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, slot #7

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
Special All - All RT - Optimization - Ethernet - Thumbnails - Next

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: 50.5 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system

Characteristics of all highest latencies:

System rack5slot7s.osadl.org (updated Tue May 12, 2026 00:45:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
10314	2	2458	2202,99	sleep0	0	-21	swapper	19:09:41	0
10394	99	164	28,112	cyclictest	28759	-21	uname	00:10:39	0
10394	99	160	19,117	cyclictest	3710	-21	munin-run	21:40:03	0
10394	99	160	18,117	cyclictest	4625	-21	apt-get	21:45:14	0
10394	99	159	16,118	cyclictest	28651	-21	apt-get	20:55:27	0
10394	99	158	32,104	cyclictest	11291	-21	apt-get	22:25:16	0
10394	99	158	22,27	cyclictest	11622	-21	apt-get	19:15:33	0
10394	99	158	18,116	cyclictest	23773	-21	sort	20:25:04	0
10394	99	158	16,22	cyclictest	12479	-21	apt-get	19:20:25	0
10394	99	158	15,24	cyclictest	31945	-21	/usr/sbin/munin	00:30:37	0
10394	99	157	16,119	cyclictest	28483	-21	munin-run	20:55:03	0
10394	99	157	13,123	cyclictest	20042	-21	snmpd	21:30:40	0
10394	99	157	10,122	cyclictest	27219	-21	sort	20:45:42	0
10394	99	156	16,114	cyclictest	31123	-21	apt-get	21:10:32	0
10394	99	156	12,25	cyclictest	24152	-21	grep	20:25:55	0
10394	99	155	25,107	cyclictest	15845	-21	df_inode	22:50:33	0
10394	99	155	15,114	cyclictest	21992	-21	grep	23:26:05	0
10394	99	155	14,116	cyclictest	5417	-21	/usr/sbin/munin	21:50:20	0
10394	99	154	27,18	cyclictest	0	-21	swapper	00:05:01	0
10394	99	154	14,117	cyclictest	13018	-21	apt-get	22:36:18	0
10394	99	154	13,98	cyclictest	17354	-21	/usr/sbin/munin	23:00:36	0
10394	99	154	13,27	cyclictest	26686	-21	mailstats	20:40:59	0
10394	99	154	12,118	cyclictest	21500	-21	grep	20:10:54	0
10394	99	154	11,25	cyclictest	16829	-21	apt-get	19:46:42	0
10394	99	154	10,117	cyclictest	25994	-21	grep	20:36:03	0
10394	99	154	10,117	cyclictest	19151	-21	find	19:55:56	0
10394	99	153	16,24	cyclictest	19054	-21	df_inode	23:10:28	0
10394	99	152	18,111	cyclictest	21830	-21	apt-get	20:16:18	0
10394	99	152	18,104	cyclictest	30432	-21	apt-get	21:05:21	0
10394	99	152	16,21	cyclictest	1658	-21	memory	21:25:45	0
10394	99	152	15,24	cyclictest	20998	-21	users	20:06:04	0
10394	99	152	15,111	cyclictest	12157	-21	apt-get	22:30:26	0
10394	99	152	14,98	cyclictest	15775	-21	apt-get	19:41:21	0
10394	99	152	14,96	cyclictest	26872	-21	munin-run	00:00:03	0
10394	99	152	13,25	cyclictest	20488	-21	latency_hist	23:20:04	0
10394	99	152	13,114	cyclictest	20093	-21	grep	20:01:00	0
10394	99	152	13,100	cyclictest	25268	-21	modprobe	23:50:00	0
10394	99	152	12,117	cyclictest	24481	-21	munin-plugin-st	23:45:01	0
10394	99	152	12,116	cyclictest	15515	-21	awk	19:35:57	0
10394	99	151	31,99	cyclictest	20958	-21	processes	23:20:52	0
10394	99	151	15,111	cyclictest	14374	-21	cstates	19:30:23	0
10394	99	151	13,26	cyclictest	29944	-21	grep	21:00:57	0
10394	99	151	11,25	cyclictest	12784	-21	systemd-journal	22:05:01	0
10394	99	151	10,26	cyclictest	949	-21	apt-config	00:40:09	0
10394	99	151	10,118	cyclictest	1080	-21	cut	21:20:58	0
10394	99	150	18,108	cyclictest	8308	-21	memory	22:05:43	0
10394	99	150	16,21	cyclictest	29503	-21	fw_packets	00:15:36	0
10394	99	150	16,110	cyclictest	4486	-21	users	21:41:06	0
10394	99	150	14,24	cyclictest	10372	-21	munin-plugin-st	22:20:01	0
10394	99	150	11,115	cyclictest	22263	-21	expr	23:30:23	0
10394	99	150	11,114	cyclictest	18612	-21	cron	19:55:02	0
10394	99	149	20,27	cyclictest	8973	-21	diskstats	22:10:34	0
10394	99	149	20,21	cyclictest	13144	-21	kworker/u2:14	19:25:21	0
10394	99	149	17,26	cyclictest	18152	-21	apt-get	23:05:16	0
10394	99	149	17,23	cyclictest	17190	-21	users	22:56:05	0
10394	99	149	15,109	cyclictest	6281	-21	apt-get	21:55:26	0
10394	99	149	13,25	cyclictest	15552	-21	grep	22:46:07	0
10394	99	149	12,24	cyclictest	11280	-21	grep	19:15:07	0
10394	99	148	19,24	cyclictest	25616	-21	memory	23:50:44	0
10394	99	148	19,101	cyclictest	24680	-21	df	20:30:28	0
10394	99	148	16,25	cyclictest	10496	-21	apt-get	22:20:17	0
10394	99	148	14,110	cyclictest	32353	-21	df_inode	21:15:35	0
10394	99	147	11,47	cyclictest	30315	-21	df_inode	00:20:30	0
10394	99	146	19,99	cyclictest	27894	-21	df_inode	00:05:31	0
10394	99	145	18,26	cyclictest	23666	-21	munin-run	23:40:02	0
10394	99	145	12,110	cyclictest	31005	-21	dpkg	00:25:14	0
10394	99	145	11,112	cyclictest	14147	-21	apt-get	22:40:15	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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