OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #f, 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

Click here to display the system's profile data.

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, lowest P state: performance
Compare latency of primary with shadow system

Characteristics of the 50 highest latencies:

System rackfslot7s.osadl.org (updated Fri May 02, 2025 00:44:17)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1919274	99	3332	16,3311	cyclictest	2004146	-21	kworker/3:1+events	23:40:17	3
1919262	99	3179	16,3160	cyclictest	1922561	-21	kworker/0:0+events	19:25:19	0
1919262	99	3062	14,3042	cyclictest	1999446	-21	kworker/0:0+events	23:20:13	0
1919262	99	2823	14,2804	cyclictest	1994879	-21	kworker/0:2+events	23:10:20	0
1919270	99	2790	13,2773	cyclictest	1927425	-21	kworker/2:1+events	19:50:21	2
1919266	99	2737	13,2720	cyclictest	1964517	-21	kworker/1:1+events	21:45:19	1
1919262	99	2679	13,2663	cyclictest	1940625	-21	kworker/0:0+events	20:30:18	0
1919270	99	2667	13,2650	cyclictest	1959920	-21	kworker/2:2+events	21:25:20	2
1919266	99	2629	13,2613	cyclictest	1939116	-21	kworker/1:1+events	20:25:19	1
1919270	99	2628	13,2611	cyclictest	1927425	-21	kworker/2:1+events	19:35:20	2
1919262	99	2574	6,2564	cyclictest	1989882	-21	kworker/0:2+events	22:50:15	0
1919274	99	2573	12,2557	cyclictest	1947154	-21	kworker/3:0+events	20:56:36	3
1919262	99	2554	12,2538	cyclictest	1937136	-21	kworker/0:1+events	20:04:00	0
1919270	99	2535	7,2525	cyclictest	1909012	-21	kworker/2:1+events	19:20:43	2
1919274	99	2530	12,2514	cyclictest	1920728	-21	kworker/3:2+events	19:28:24	3
1919266	99	2528	9,2515	cyclictest	1945554	-21	kworker/1:0+events	20:31:50	1
1919274	99	2523	12,2508	cyclictest	1985187	-21	kworker/3:1+events	22:37:24	3
1919274	99	2506	12,2491	cyclictest	1937317	-21	kworker/3:2+events	20:16:33	3
1919274	99	2497	12,2481	cyclictest	1933804	-21	kworker/3:2+events	19:53:00	3
1919274	99	2496	12,2480	cyclictest	1947154	-21	kworker/3:0+events	20:45:56	3
1919270	99	2495	12,2481	cyclictest	1972825	-21	kworker/2:2+events	22:05:08	2
1919266	99	2495	12,2479	cyclictest	1928914	-21	kworker/1:2+events	19:39:14	1
1919274	99	2494	12,2479	cyclictest	2001388	-21	kworker/3:2+events	23:27:29	3
1919274	99	2493	12,2477	cyclictest	1980422	-21	kworker/3:0+events	22:25:12	3
1919270	99	2493	12,2477	cyclictest	1953252	-21	kworker/2:2+events	20:53:33	2
1919266	99	2492	11,2477	cyclictest	1961292	-21	kworker/1:0+events	21:34:26	1
1919270	99	2491	12,2475	cyclictest	1933953	-21	kworker/2:0+events	20:12:44	2
1919270	99	2490	12,2474	cyclictest	1972825	-21	kworker/2:2+events	22:49:50	2
1919270	99	2490	11,2476	cyclictest	1999685	-21	kworker/2:1+events	23:20:38	2
1919262	99	2490	11,2475	cyclictest	2004442	-21	kworker/0:0+events	23:46:23	0
1919262	99	2489	12,2473	cyclictest	2023077	-21	kworker/0:1+events	00:31:58	0
1919270	99	2488	9,2473	cyclictest	1959920	-21	kworker/2:2+events	21:21:09	2
1919274	99	2487	11,2472	cyclictest	1955058	-21	kworker/3:2+events	21:01:35	3
1919262	99	2487	10,2473	cyclictest	1994879	-21	kworker/0:2+events	23:27:50	0
1919270	99	2486	11,2471	cyclictest	2018928	-21	kworker/2:0+events	00:21:11	2
1919270	99	2486	11,2471	cyclictest	1945602	-21	kworker/2:2+events	20:39:51	2
1919262	99	2486	12,2470	cyclictest	1943972	-21	kworker/0:2+events	20:47:29	0
1919262	99	2486	10,2472	cyclictest	1922561	-21	kworker/0:0+events	19:31:06	0
1919274	99	2485	12,2470	cyclictest	1980422	-21	kworker/3:0+events	22:58:33	3
1919266	99	2485	10,2471	cyclictest	1915906	-21	kworker/1:0+events	19:28:47	1
1919274	99	2484	11,2469	cyclictest	1967917	-21	kworker/3:1+events	21:57:06	3
1919262	99	2484	12,2468	cyclictest	1956596	-21	kworker/0:1+events	21:20:45	0
1919262	99	2484	11,2469	cyclictest	1940625	-21	kworker/0:0+events	20:13:29	0
1919274	99	2482	12,2467	cyclictest	1929004	-21	kworker/3:2+events	19:42:39	3
1919270	99	2481	12,2465	cyclictest	1933953	-21	kworker/2:0+events	20:29:31	2
1919266	99	2481	7,2471	cyclictest	1925725	-21	kworker/1:1+events	19:33:02	1
1919270	99	2480	12,2465	cyclictest	2002639	-21	kworker/2:0+events	23:56:10	2
1919266	99	2480	12,2465	cyclictest	1989941	-21	kworker/1:0+events	22:51:22	1
1919266	99	2480	12,2464	cyclictest	1947193	-21	kworker/1:1+events	20:37:57	1
1919262	99	2480	12,2464	cyclictest	1994879	-21	kworker/0:2+events	23:08:04	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2024-07-29 - 23:00