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Default latency plot of shadow in rack #e, 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
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: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system

Characteristics of the 100 highest latencies:

System rackeslot4s.osadl.org (updated Tue Aug 25, 2026 00:44:06)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2006129	99	70	64,4	cyclictest	2022178	-21	cat	19:25:00	2
2006133	99	51	43,5	cyclictest	2075600	-21	cp	20:15:01	3
2006126	99	50	46,3	cyclictest	2268323	-21	apt-get	23:20:11	1
2006129	99	48	45,2	cyclictest	2262463	-21	kworker/u8:1+flush-259:0	23:25:24	2
2006129	99	47	44,2	cyclictest	2205888	-21	kworker/u8:3+flush-259:0	22:20:25	2
2006126	99	46	41,3	cyclictest	2143455	-21	apt-get	21:20:12	1
2006129	99	45	42,2	cyclictest	2005790	-21	kworker/u8:2+flush-259:0	20:00:25	2
2006129	99	44	40,3	cyclictest	2142916	-21	kworker/u8:2+flush-259:0	21:55:25	2
2006126	99	44	39,3	cyclictest	2301118	-21	apt-get	00:00:09	1
2006133	99	42	36,4	cyclictest	2247232	-21	/usr/sbin/munin	23:00:16	3
2006133	99	39	32,4	cyclictest	2006548	-21	cp	19:10:02	3
2006133	99	38	34,3	cyclictest	2289058	-21	kworker/u8:2+flush-259:0	00:05:28	3
2006129	99	38	35,2	cyclictest	2005790	-21	kworker/u8:2+flush-259:0	19:10:24	2
2006126	99	37	32,4	cyclictest	2016864	-21	latency_hist	19:20:00	1
2006126	99	37	32,3	cyclictest	2257942	-21	/usr/sbin/munin	23:10:24	1
2006126	99	37	31,4	cyclictest	2091029	-21	latency_hist	20:30:01	1
2006129	99	36	32,3	cyclictest	2231530	-21	kworker/u8:3+flush-259:0	23:59:59	2
2006129	99	36	31,3	cyclictest	2148383	-21	latency_hist	21:25:00	2
2006126	99	36	33,2	cyclictest	1990770	-21	kworker/u8:0+flush-259:0	20:05:00	1
2006129	99	35	32,2	cyclictest	2075704	-21	kworker/u8:0+flush-259:0	20:50:24	2
2006126	99	35	32,2	cyclictest	1990770	-21	kworker/u8:0+flush-259:0	19:50:25	1
2006123	99	35	30,3	cyclictest	335557	-21	systemd-journal	21:44:10	0
2006123	99	35	30,3	cyclictest	335557	-21	systemd-journal	21:44:09	0
2006133	99	34	29,4	cyclictest	2311505	-21	apt-get	00:10:13	3
2006129	99	34	31,2	cyclictest	1990770	-21	kworker/u8:0+events_unbound	19:35:21	2
2006126	99	34	31,2	cyclictest	2075704	-21	kworker/u8:0+flush-259:0	20:55:21	1
2006126	99	34	28,2	cyclictest	2075704	-21	kworker/u8:0+events_unbound	20:50:21	1
2006123	99	34	28,4	cyclictest	2133299	-21	diskstats	21:10:14	0
2006133	99	33	29,3	cyclictest	2200484	-21	kworker/u8:0+flush-259:0	23:05:17	3
2006129	99	33	29,3	cyclictest	335557	-21	systemd-journal	22:15:09	2
2006129	99	33	29,3	cyclictest	2011949	-21	apt-get	19:15:12	2
2006123	99	33	28,4	cyclictest	2138295	-21	apt-get	21:15:14	0
2006123	99	33	27,4	cyclictest	2048518	-21	/usr/sbin/munin	19:50:14	0
2006129	99	32	29,2	cyclictest	2005790	-21	kworker/u8:2+flush-259:0	20:10:16	2
2006129	99	32	27,3	cyclictest	2107298	-21	apt-get	20:45:12	2
2006126	99	32	28,2	cyclictest	2142916	-21	kworker/u8:2+events_unbound	21:30:18	1
2006129	99	31	28,2	cyclictest	2200484	-21	kworker/u8:0+flush-259:0	23:20:16	2
2006126	99	31	28,2	cyclictest	2200484	-21	kworker/u8:0+flush-259:0	22:45:11	1
2006126	99	31	28,2	cyclictest	2058683	-21	kworker/u8:4+events_unbound	20:05:23	1
2006126	99	31	26,3	cyclictest	2101605	-21	base64	20:40:01	1
2006133	99	30	24,4	cyclictest	2058441	-21	apt-get	19:58:00	3
2006129	99	30	28,2	cyclictest	2080674	-21	kworker/u8:3+events_unbound	21:05:01	2
2006129	99	30	27,2	cyclictest	2200484	-21	kworker/u8:0+flush-259:0	22:50:22	2
2006129	99	30	27,2	cyclictest	2142916	-21	kworker/u8:2+events_unbound	21:35:19	2
2006129	99	30	27,2	cyclictest	2142916	-21	kworker/u8:2+events_unbound	21:35:18	2
2006126	99	30	27,2	cyclictest	2005790	-21	kworker/u8:2+flush-259:0	19:30:20	1
2006123	99	30	25,3	cyclictest	2154232	-21	apt-get	21:30:13	0
2006123	99	30	24,4	cyclictest	2289093	-21	apt-get	23:40:12	0
2006133	99	29	25,2	cyclictest	2289058	-21	kworker/u8:2+events_unbound	23:57:12	3
2006129	99	29	26,2	cyclictest	2153564	-21	gpgv	21:30:01	2
2006129	99	29	26,2	cyclictest	1990770	-21	kworker/u8:0+events_unbound	19:50:18	2
2006126	99	29	26,2	cyclictest	2205888	-21	kworker/u8:3+events_unbound	22:20:23	1
2006126	99	29	26,2	cyclictest	2005790	-21	kworker/u8:2+flush-259:0	21:00:15	1
2006126	99	29	25,3	cyclictest	2043123	-21	kworker/u8:1+events_unbound	19:46:55	1
2006123	99	29	1,26	cyclictest	2241861	-21	unin-run	22:55:01	0
2006129	99	28	25,2	cyclictest	2200484	-21	kworker/u8:0+events_unbound	23:10:22	2
2006126	99	28	25,2	cyclictest	2005790	-21	kworker/u8:2+flush-259:0	19:20:26	1
2006123	99	28	24,3	cyclictest	2289058	-21	kworker/u8:2+flush-259:0	00:00:23	0
2006123	99	28	24,2	cyclictest	2242105	-21	apt-get	22:55:12	0
2006133	99	27	21,4	cyclictest	2231530	-21	kworker/u8:3+flush-259:0	23:15:17	3
2006133	99	27	21,4	cyclictest	2117627	-21	/usr/sbin/munin	20:55:13	3
2006129	99	27	24,2	cyclictest	2148401	-21	kworker/u8:3+flush-259:0	21:30:15	2
2006129	99	27	24,2	cyclictest	2142916	-21	kworker/u8:2+events_unbound	21:50:11	2
2006129	99	27	24,2	cyclictest	2043123	-21	kworker/u8:1+events_unbound	20:30:23	2
2006129	99	27	24,2	cyclictest	2043123	-21	kworker/u8:1+events_unbound	19:55:17	2
2006126	99	27	24,2	cyclictest	2231530	-21	kworker/u8:3+events_unbound	23:19:09	1
2006126	99	27	24,2	cyclictest	2148401	-21	kworker/u8:3+flush-259:0	21:50:23	1
2006126	99	27	24,2	cyclictest	2005790	-21	kworker/u8:2+flush-259:0	19:30:00	1
2006126	99	27	23,3	cyclictest	2300882	-21	kworker/u8:1+events_unbound	00:37:42	1
2006126	99	27	22,4	cyclictest	2080922	-21	apt-get	20:20:12	1
2006123	99	27	24,2	cyclictest	2327654	-21	kworker/u8:4+events_unbound	00:40:00	0
2006129	99	26	23,2	cyclictest	2011703	-21	kworker/u8:3+events_unbound	19:40:22	2
2006129	99	26	22,3	cyclictest	2205888	-21	kworker/u8:3+events_unbound	22:25:29	2
2006129	99	26	22,3	cyclictest	2200484	-21	kworker/u8:0+events_unbound	23:00:18	2
2006126	99	26	23,2	cyclictest	2200484	-21	kworker/u8:0+events_unbound	23:35:30	1
2006126	99	26	22,3	cyclictest	2005790	-21	kworker/u8:2+events_unbound	20:49:11	1
2006129	99	25	23,1	cyclictest	2122555	-21	kworker/u8:1+events_unbound	21:40:20	2
2006129	99	25	23,1	cyclictest	2122555	-21	kworker/u8:1+events_unbound	21:40:20	2
2006129	99	25	22,2	cyclictest	2289058	-21	kworker/u8:2+events_unbound	23:40:22	2
2006129	99	25	19,4	cyclictest	335557	-21	systemd-journal	21:50:01	2
2006126	99	25	22,2	cyclictest	2205888	-21	kworker/u8:3+flush-259:0	22:25:19	1
2006126	99	25	22,2	cyclictest	2122555	-21	kworker/u8:1+flush-259:0	21:15:27	1
2006126	99	25	21,3	cyclictest	2231530	-21	kworker/u8:3+events_unbound	23:04:08	1
2006126	99	25	21,3	cyclictest	2231530	-21	kworker/u8:3+events_unbound	22:55:11	1
2006126	99	25	21,3	cyclictest	2075704	-21	kworker/u8:0+events_unbound	20:18:09	1
2006126	99	25	20,4	cyclictest	2273501	-21	apt-get	23:25:11	1
2006133	99	24	20,3	cyclictest	2122555	-21	kworker/u8:1+flush-259:0	21:15:20	3
2006133	99	24	19,3	cyclictest	509	-21	rs:main		3
2006133	99	24	19,3	cyclictest	509	-21	rs:main		3
2006129	99	24	21,2	cyclictest	2200484	-21	kworker/u8:0+flush-259:0	22:30:11	2
2006129	99	24	20,3	cyclictest	2317090	-21	kworker/u8:0+events_unbound	00:25:19	2
2006129	99	24	19,4	cyclictest	2252343	-21	/usr/sbin/munin	23:05:15	2
2006126	99	24	21,2	cyclictest	2311262	-21	kworker/u8:3+events_unbound	00:15:00	1
2006126	99	24	21,2	cyclictest	2289058	-21	kworker/u8:2+events_unbound	23:58:50	1
2006126	99	24	21,2	cyclictest	2148401	-21	kworker/u8:3+events_unbound	21:57:11	1
2006126	99	24	21,2	cyclictest	2148401	-21	kworker/u8:3+events_unbound	21:47:11	1
2006126	99	24	21,2	cyclictest	2142916	-21	kworker/u8:2+events_unbound	22:12:27	1
2006126	99	24	21,2	cyclictest	2075704	-21	kworker/u8:0+events_unbound	20:42:09	1
2006126	99	24	20,3	cyclictest	2043123	-21	kworker/u8:1+events_unbound	19:55:19	1
2006123	99	24	19,4	cyclictest	2216220	-21	/usr/sbin/munin	22:30:14	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2021-09-01 - 00:34