OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

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 100 highest latencies:

System rackfslot7s.osadl.org (updated Mon Jan 26, 2026 00:44:18)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1445616	99	4180	19,4152	cyclictest	1547224	-21	kworker/3:0+events	00:25:18	3
1445616	99	4180	19,4152	cyclictest	1547224	-21	kworker/3:0+events	00:25:17	3
1445609	99	3083	14,3064	cyclictest	1469982	-21	kworker/1:2+events	20:50:18	1
1445613	99	2855	14,2835	cyclictest	1513606	-21	kworker/2:2+events	22:40:12	2
1445609	99	2715	12,2698	cyclictest	1447035	-21	kworker/1:2+events	19:20:00	1
1445616	99	2684	13,2667	cyclictest	1524559	-21	kworker/3:0+events	23:20:12	3
1445607	99	2672	13,2657	cyclictest	1474796	-21	kworker/0:1+events	20:45:15	0
1445607	99	2615	13,2598	cyclictest	1473190	-21	kworker/0:2+events	20:35:18	0
1445616	99	2610	12,2596	cyclictest	1531401	-21	kworker/3:0+events	23:35:01	3
1445609	99	2520	12,2505	cyclictest	1505609	-21	kworker/1:2+events	22:21:53	1
1445609	99	2488	12,2473	cyclictest	1535937	-21	kworker/1:2+events	23:51:47	1
1445609	99	2488	12,2472	cyclictest	1519699	-21	kworker/1:2+events	23:39:14	1
1445609	99	2485	12,2469	cyclictest	1469982	-21	kworker/1:2+events	20:59:50	1
1445607	99	2481	12,2467	cyclictest	1526040	-21	kworker/0:2+events	23:36:12	0
1445607	99	2481	12,2465	cyclictest	1504151	-21	kworker/0:2+events	22:16:56	0
1445609	99	2479	12,2464	cyclictest	1529342	-21	kworker/1:1+events	23:34:16	1
1445607	99	2460	10,2447	cyclictest	1487841	-21	kworker/0:2+events	21:30:35	0
1445607	99	2454	12,2438	cyclictest	1479629	-21	kworker/0:0+events	20:52:13	0
1445613	99	2445	10,2431	cyclictest	1478152	-21	kworker/2:2+events	20:55:17	2
1445616	99	2442	9,2428	cyclictest	1497740	-21	kworker/3:0+events	21:55:11	3
1445609	99	2430	12,2412	cyclictest	1508896	-21	kworker/1:1+events	22:25:17	1
1445607	99	2429	11,2415	cyclictest	1483010	-21	kworker/0:2+events	21:04:25	0
1445609	99	2403	11,2389	cyclictest	1510532	-21	kworker/1:0+events	22:39:49	1
1445613	99	2395	9,2382	cyclictest	1483099	-21	kworker/2:1+events	21:07:06	2
1445616	99	2393	12,2377	cyclictest	1545455	-21	kworker/3:1+events	00:20:44	3
1445613	99	2393	12,2378	cyclictest	1521951	-21	kworker/2:0+events	23:27:27	2
1445607	99	2389	11,2375	cyclictest	1479629	-21	kworker/0:0+events	21:18:14	0
1445616	99	2386	12,2370	cyclictest	1504762	-21	kworker/3:2+events	22:19:15	3
1445616	99	2386	12,2370	cyclictest	1468121	-21	kworker/3:1+events	20:19:17	3
1445616	99	2385	12,2369	cyclictest	1518333	-21	kworker/3:2+events	22:54:15	3
1445609	99	2341	11,2326	cyclictest	1449051	-21	kworker/1:0+events	19:26:23	1
1445613	99	2339	11,2324	cyclictest	1537750	-21	kworker/2:0+events	23:58:21	2
1445607	99	2339	12,2324	cyclictest	1534482	-21	kworker/0:2+events	00:03:42	0
1445607	99	2324	11,2310	cyclictest	1491444	-21	kworker/0:0+events	21:44:25	0
1445616	99	2312	10,2299	cyclictest	1520549	-21	kworker/3:1+events	23:10:18	3
1445616	99	2305	10,2291	cyclictest	1531565	-21	kworker/3:3+events	23:59:09	3
1445613	99	2300	10,2287	cyclictest	1447118	-21	kworker/2:0+events	19:26:02	2
1445607	99	2300	12,2285	cyclictest	1510318	-21	kworker/0:2+events	22:27:58	0
1445607	99	2295	9,2283	cyclictest	1500815	-21	kworker/0:0+events	22:00:56	0
1445607	99	2290	11,2276	cyclictest	1539173	-21	kworker/0:0+events	00:29:09	0
1445607	99	2290	11,2276	cyclictest	1539173	-21	kworker/0:0+events	00:29:08	0
1445613	99	2282	8,2270	cyclictest	1539418	-21	kworker/2:1+events	00:02:32	2
1445607	99	2280	11,2266	cyclictest	1452151	-21	kworker/0:1+events	19:30:14	0
1445613	99	2269	9,2257	cyclictest	1544086	-21	kworker/2:2+events	00:15:51	2
1445616	99	2264	12,2249	cyclictest	1504762	-21	kworker/3:2+events	22:11:10	3
1445616	99	2262	10,2248	cyclictest	1540937	-21	kworker/3:0+events	00:07:05	3
1445609	99	2262	11,2248	cyclictest	1522958	-21	kworker/1:0+events	23:10:42	1
1445607	99	2262	10,2249	cyclictest	1534482	-21	kworker/0:2+events	00:07:28	0
1445616	99	2260	12,2244	cyclictest	1494974	-21	kworker/3:1+events	21:42:30	3
1445607	99	2259	10,2246	cyclictest	1489803	-21	kworker/0:1+events	21:24:27	0
1445607	99	2258	10,2245	cyclictest	1474796	-21	kworker/0:1+events	20:41:49	0
1445607	99	2257	11,2243	cyclictest	1487841	-21	kworker/0:2+events	21:35:13	0
1445609	99	2252	10,2239	cyclictest	1545776	-21	kworker/1:0+events	00:21:53	1
1445609	99	2235	10,2222	cyclictest	1478461	-21	kworker/1:1+events	21:05:11	1
1445607	99	2233	3,2227	cyclictest	1531158	-21	kworker/0:1+events	23:33:54	0
1445616	99	2231	11,2217	cyclictest	1504762	-21	kworker/3:2+events	22:34:01	3
1445607	99	2231	10,2217	cyclictest	1463847	-21	kworker/0:2+events	20:07:07	0
1445607	99	2230	11,2217	cyclictest	1521627	-21	kworker/0:1+events	23:25:53	0
1445607	99	2230	11,2215	cyclictest	1518215	-21	kworker/0:0+events	22:59:39	0
1445607	99	2229	11,2215	cyclictest	1508632	-21	kworker/0:0+events	22:21:33	0
1445607	99	2228	8,2217	cyclictest	1531158	-21	kworker/0:1+events	23:41:33	0
1445607	99	2228	11,2214	cyclictest	1513562	-21	kworker/0:1+events	22:47:49	0
1445607	99	2228	10,2215	cyclictest	1460139	-21	kworker/0:2+events	19:55:46	0
1445607	99	2227	8,2215	cyclictest	1532828	-21	kworker/0:0+events	23:47:15	0
1445607	99	2227	11,2213	cyclictest	1455330	-21	kworker/0:0+events	19:48:10	0
1445607	99	2225	11,2211	cyclictest	1457227	-21	kworker/0:1+events	19:54:39	0
1445607	99	2225	10,2211	cyclictest	1500815	-21	kworker/0:0+events	22:06:37	0
1445607	99	2224	10,2210	cyclictest	1521627	-21	kworker/0:1+events	23:08:04	0
1445613	99	2222	11,2207	cyclictest	1529645	-21	kworker/2:1+events	23:34:39	2
1445613	99	2215	9,2203	cyclictest	1479752	-21	kworker/2:0+events	20:54:31	2
1445613	99	2211	11,2196	cyclictest	1507215	-21	kworker/2:1+events	22:30:17	2
1445607	99	2207	6,2198	cyclictest	1510318	-21	kworker/0:2+events	22:37:29	0
1445613	99	2206	10,2193	cyclictest	1520032	-21	kworker/2:2+events	23:05:23	2
1445613	99	2204	12,2190	cyclictest	1524469	-21	kworker/2:1+events	23:15:14	2
1445613	99	2204	11,2189	cyclictest	1463533	-21	kworker/2:0+events	20:05:59	2
1445613	99	2201	11,2187	cyclictest	1463533	-21	kworker/2:0+events	20:42:12	2
1445613	99	2201	11,2186	cyclictest	1549006	-21	kworker/2:0+events	00:33:20	2
1445616	99	2200	9,2188	cyclictest	1534393	-21	kworker/3:0+events	23:43:49	3
1445616	99	2200	11,2186	cyclictest	1452362	-21	kworker/3:0+events	19:29:30	3
1445607	99	2199	9,2187	cyclictest	1526040	-21	kworker/0:2+events	23:22:52	0
1445613	99	2198	11,2184	cyclictest	1529645	-21	kworker/2:1+events	23:36:58	2
1445613	99	2197	11,2183	cyclictest	1483099	-21	kworker/2:1+events	21:23:41	2
1445607	99	2197	10,2184	cyclictest	1546038	-21	kworker/0:2+events	00:24:33	0
1445616	99	2196	10,2183	cyclictest	1543003	-21	kworker/3:2+events	00:11:43	3
1445613	99	2196	11,2181	cyclictest	1478152	-21	kworker/2:2+events	21:04:50	2
1445616	99	2195	11,2180	cyclictest	1479692	-21	kworker/3:2+events	20:57:54	3
1445613	99	2195	11,2181	cyclictest	1463533	-21	kworker/2:0+events	20:10:32	2
1445613	99	2194	7,2184	cyclictest	1497771	-21	kworker/2:1+events	22:02:49	2
1445613	99	2194	10,2181	cyclictest	1503644	-21	kworker/2:0+events	22:12:21	2
1445616	99	2193	9,2181	cyclictest	1484555	-21	kworker/3:1+events	21:09:03	3
1445613	99	2191	10,2178	cyclictest	1497771	-21	kworker/2:1+events	21:57:29	2
1445616	99	2190	11,2175	cyclictest	1504762	-21	kworker/3:2+events	22:24:54	3
1445616	99	2189	11,2175	cyclictest	1469802	-21	kworker/3:2+events	20:29:34	3
1445616	99	2188	11,2174	cyclictest	1537596	-21	kworker/3:0+events	23:53:45	3
1445616	99	2188	11,2174	cyclictest	1513774	-21	kworker/3:0+events	22:57:22	3
1445616	99	2188	11,2174	cyclictest	1489894	-21	kworker/3:0+events	21:39:24	3
1445613	99	2186	11,2171	cyclictest	1483099	-21	kworker/2:1+events	21:13:12	2
1445616	99	2184	10,2171	cyclictest	1471474	-21	kworker/3:0+events	20:36:27	3
1445616	99	2183	11,2169	cyclictest	1487754	-21	kworker/3:2+events	21:18:59	3
1445613	99	2183	9,2170	cyclictest	1520032	-21	kworker/2:2+events	23:01:59	2
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


Access: public		Short link to this page
This page was last modified on 2024-07-29 - 23:00