Blue color from RGBA

Extract the Blue channel from a stream of RGBA pixels as fast as possible.

Input: 125 000 000 pixels in binary RGBA format on STDIN (4 bytes per pixel: R, G, B, A).

Output: Write only the Blue byte of each pixel to STDOUT (125 000 000 bytes total).

Restrictions:30s256Mb 1 Score Packages

Feel free to create an issue if you need an extra library from the standard Ubuntu repository.

Name	Version	Description
libc6-dev	2.39-0ubuntu8.7	GNU C Library: Development Libraries and Header Files Contains the symlinks, headers, and object files needed to compile and link programs which use the standard C library.
libclang-common-14-dev	1:14.0.6-19build4	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-15-dev	1:15.0.7-14build3	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-16-dev	1:16.0.6-23ubuntu4	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-17-dev	1:17.0.6-9ubuntu1	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-18-dev	1:18.1.3-1ubuntu1	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-19-dev	1:19.1.1-1ubuntu1~24.04.2	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-20-dev	1:20.1.2-0ubuntu1~24.04.2	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libcrypt-dev	1:4.4.36-4build1	libcrypt development files This package contains the files needed for developing applications that use libcrypt.
libgcc-10-dev	10.5.0-4ubuntu2.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-11-dev	11.5.0-1ubuntu1~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-12-dev	12.4.0-2ubuntu1~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-13-dev	13.3.0-6ubuntu2~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-14-dev	14.2.0-4ubuntu2~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libobjc-13-dev	13.3.0-6ubuntu2~24.04.1	Runtime library for GNU Objective-C applications (development files) This package contains the headers and static library files needed to build GNU ObjC applications.
libssl-dev	3.0.13-0ubuntu3.9	Secure Sockets Layer toolkit - development files This package is part of the OpenSSL project's implementation of the SSL and TLS cryptographic protocols for secure communication over the Internet. . It contains development libraries, header files, and manpages for libssl and libcrypto.
libstdc++-10-dev	10.5.0-4ubuntu2.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-11-dev	11.5.0-1ubuntu1~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-12-dev	12.4.0-2ubuntu1~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-13-dev	13.3.0-6ubuntu2~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-14-dev	14.2.0-4ubuntu2~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libtbb-dev	2021.11.0-2ubuntu2	parallelism library for C++ - development files TBB is a library that helps you leverage multi-core processor performance without having to be a threading expert. It represents a higher-level, task-based parallelism that abstracts platform details and threading mechanism for performance and scalability. . (Note: if you are a user of the i386 architecture, i.e., 32-bit Intel or compatible hardware, this package only supports Pentium4-compatible and higher processors.) . This package includes the TBB development files.

Back to listApr 7, 2026 07:22

Josu San Martin

Score: 4,707

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Apr 7, 2026 07:03	4,645	95,834,090	31,014,000	34,016,000	126,042,112
2	Apr 7, 2026 06:58	4,651	91,865,265	31,056,000	34,061,000	126,242,816
3	Apr 7, 2026 07:09	4,651	92,013,973	34,057,000	31,052,000	126,246,912
4	Apr 7, 2026 07:24	4,655	104,269,948	34,086,000	31,078,000	126,246,912
5	Apr 7, 2026 07:11	4,661	98,110,589	34,131,000	31,119,000	126,259,200
6	Apr 7, 2026 06:59	4,662	93,567,970	32,130,000	33,134,000	126,042,112
7	Apr 7, 2026 07:29	4,663	90,331,018	34,144,000	31,131,000	126,038,016
8	Apr 7, 2026 07:09	4,665	99,657,892	32,150,000	33,155,000	126,095,360
9	Apr 7, 2026 07:01	4,667	92,540,899	35,184,000	30,158,000	126,033,920
10	Apr 7, 2026 06:56	4,668	93,930,403	37,204,000	28,154,000	126,033,920
11	Apr 7, 2026 07:10	4,669	89,138,214	32,178,000	33,183,000	126,038,016
12	Apr 7, 2026 07:05	4,670	90,328,634	33,190,000	32,184,000	126,038,016
13	Apr 7, 2026 07:19	4,670	98,184,625	31,182,000	34,200,000	126,246,912
14	Apr 7, 2026 07:10	4,672	93,733,165	33,207,000	32,201,000	126,246,912
15	Apr 7, 2026 07:20	4,672	99,712,140	33,698,000	31,716,000	126,042,112
16	Apr 7, 2026 07:37	4,672	91,770,995	34,216,000	31,197,000	126,025,728
17	Apr 7, 2026 06:55	4,673	94,177,392	32,209,000	33,216,000	126,038,016
18	Apr 7, 2026 07:01	4,674	88,875,600	35,695,000	29,746,000	126,255,104
19	Apr 7, 2026 07:03	4,674	98,547,559	35,692,000	29,743,000	126,255,104
20	Apr 7, 2026 07:11	4,675	91,481,540	33,715,000	31,732,000	126,246,912
21	Apr 7, 2026 07:25	4,679	95,863,406	35,734,000	29,778,000	126,242,816
22	Apr 7, 2026 07:06	4,680	97,476,403	34,742,000	30,772,000	126,246,912
23	Apr 7, 2026 06:56	4,682	99,076,906	34,763,000	30,790,000	126,246,912
24	Apr 7, 2026 07:05	4,682	89,720,468	32,776,000	32,776,000	126,042,112
25	Apr 7, 2026 07:33	4,682	90,891,466	33,765,000	31,779,000	126,038,016
26	Apr 7, 2026 06:54	4,683	95,476,107	35,762,000	29,802,000	126,255,104
27	Apr 7, 2026 06:59	4,683	92,381,239	36,751,000	28,805,000	126,259,200
28	Apr 7, 2026 07:34	4,683	88,871,996	32,277,000	33,286,000	126,246,912
29	Apr 7, 2026 07:23	4,684	93,441,525	36,763,000	28,814,000	126,033,920
30	Apr 7, 2026 07:26	4,684	95,399,855	31,792,000	33,779,000	126,033,920
31	Apr 7, 2026 07:02	4,685	99,433,156	31,800,000	33,787,000	126,033,920
32	Apr 7, 2026 07:13	4,685	95,947,805	35,774,000	29,812,000	126,038,016
33	Apr 7, 2026 06:57	4,686	93,506,870	35,782,000	29,818,000	126,038,016
34	Apr 7, 2026 07:33	4,686	93,504,653	32,804,000	32,804,000	126,038,016
35	Apr 7, 2026 06:56	4,687	91,860,738	32,806,000	32,806,000	126,255,104
36	Apr 7, 2026 07:37	4,687	91,573,977	33,802,000	31,814,000	126,033,920
37	Apr 7, 2026 07:35	4,688	88,646,914	34,803,000	30,825,000	126,038,016
38	Apr 7, 2026 06:58	4,689	89,174,251	33,820,000	31,831,000	126,259,200
39	Apr 7, 2026 07:06	4,689	89,564,545	35,803,000	29,836,000	126,246,912
40	Apr 7, 2026 07:23	4,689	92,603,651	35,807,000	29,839,000	126,033,920
41	Apr 7, 2026 07:02	4,690	95,117,455	35,817,000	29,847,000	126,038,016
42	Apr 7, 2026 07:28	4,690	88,561,288	33,824,000	31,834,000	126,038,016
43	Apr 7, 2026 07:38	4,690	88,904,290	34,819,000	30,840,000	126,038,016
44	Apr 7, 2026 07:24	4,692	88,498,583	36,828,000	28,865,000	126,038,016
45	Apr 7, 2026 07:06	4,694	91,095,923	32,859,000	32,859,000	126,246,912
46	Apr 7, 2026 07:34	4,694	90,763,575	31,859,000	33,851,000	126,095,360
47	Apr 7, 2026 07:07	4,695	89,310,635	35,854,000	29,878,000	126,033,920
48	Apr 7, 2026 07:16	4,695	90,657,168	35,849,000	29,874,000	126,255,104
49	Apr 7, 2026 07:21	4,695	88,741,888	35,855,000	29,879,000	126,042,112
50	Apr 7, 2026 07:33	4,695	90,237,578	31,869,000	33,861,000	126,042,112
51	Apr 7, 2026 07:17	4,697	90,336,778	33,873,000	31,880,000	126,246,912
52	Apr 7, 2026 07:38	4,697	88,927,361	32,877,000	32,877,000	126,242,816
53	Apr 7, 2026 07:14	4,698	89,192,284	36,872,000	28,899,000	126,038,016
54	Apr 7, 2026 07:20	4,698	87,490,640	30,891,000	34,877,000	126,246,912
55	Apr 7, 2026 07:21	4,699	91,144,732	36,880,000	28,906,000	126,259,200
56	Apr 7, 2026 07:28	4,702	93,583,408	35,909,000	29,924,000	126,042,112
57	Apr 7, 2026 07:03	4,703	87,572,895	33,920,000	31,925,000	126,025,728
58	Apr 7, 2026 07:19	4,703	89,790,365	35,912,000	29,926,000	126,246,912
59	Apr 7, 2026 07:26	4,703	89,353,358	35,917,000	29,931,000	126,038,016
60	Apr 7, 2026 07:05	4,704	92,548,535	37,916,000	27,938,000	126,038,016
61	Apr 7, 2026 07:04	4,707	93,186,795	36,393,000	29,508,000	126,201,856
62	Apr 7, 2026 07:17	4,707	88,934,240	35,946,000	29,955,000	126,246,912
63	Apr 7, 2026 07:22	4,707	90,575,420	38,943,000	26,961,000	126,009,344
64	Apr 7, 2026 06:57	4,708	89,927,389	34,950,000	30,956,000	126,038,016
65	Apr 7, 2026 07:09	4,709	90,998,101	34,963,000	30,967,000	126,038,016
66	Apr 7, 2026 07:04	4,710	86,959,889	35,969,000	29,974,000	126,255,104
67	Apr 7, 2026 07:35	4,710	88,517,742	35,967,000	29,972,000	126,246,912
68	Apr 7, 2026 07:23	4,711	92,230,415	31,979,000	33,978,000	126,038,016
69	Apr 7, 2026 06:58	4,712	93,996,445	36,980,000	28,984,000	126,033,920
70	Apr 7, 2026 07:07	4,712	94,586,892	38,984,000	26,988,000	126,009,344
71	Apr 7, 2026 07:10	4,712	88,803,306	35,982,000	29,985,000	126,042,112
72	Apr 7, 2026 07:02	4,713	89,429,901	35,991,000	29,992,000	126,038,016
73	Apr 7, 2026 07:30	4,713	91,761,014	35,987,000	29,989,000	126,246,912
74	Apr 7, 2026 07:12	4,714	88,904,801	36,999,000	28,999,000	126,087,168
75	Apr 7, 2026 07:32	4,714	97,564,002	35,994,000	29,995,000	126,246,912
76	Apr 7, 2026 07:11	4,717	91,753,250	38,024,000	28,018,000	126,087,168
77	Apr 7, 2026 07:14	4,717	91,460,200	36,022,000	30,019,000	126,038,016
78	Apr 7, 2026 07:15	4,717	86,448,701	35,020,000	31,017,000	126,038,016
79	Apr 7, 2026 07:13	4,721	91,587,820	39,052,000	27,036,000	126,242,816
80	Apr 7, 2026 07:28	4,722	96,727,838	33,054,000	33,054,000	126,042,112
81	Apr 7, 2026 07:04	4,723	86,692,262	35,061,000	31,054,000	126,246,912
82	Apr 7, 2026 07:16	4,723	94,868,906	37,071,000	29,056,000	126,038,016
83	Apr 7, 2026 07:19	4,723	93,767,372	37,071,000	29,055,000	126,091,264
84	Apr 7, 2026 07:30	4,723	88,599,411	34,065,000	32,061,000	126,033,920
85	Apr 7, 2026 07:31	4,723	91,205,216	31,054,000	35,061,000	126,042,112
86	Apr 7, 2026 07:29	4,724	93,509,130	38,079,000	28,058,000	126,038,016
87	Apr 7, 2026 07:29	4,724	91,130,193	38,082,000	28,060,000	126,013,440
88	Apr 7, 2026 07:12	4,727	92,026,440	39,108,000	27,075,000	126,038,016
89	Apr 7, 2026 07:25	4,727	89,698,426	35,096,000	31,085,000	126,038,016
90	Apr 7, 2026 07:16	4,730	87,650,629	37,127,000	29,099,000	126,038,016
91	Apr 7, 2026 07:37	4,731	88,790,155	35,124,000	31,110,000	126,038,016
92	Apr 7, 2026 07:32	4,732	96,489,384	38,141,000	28,104,000	126,042,112
93	Apr 7, 2026 07:38	4,733	92,988,155	36,140,000	30,116,000	126,038,016
94	Apr 7, 2026 07:20	4,737	92,682,371	36,170,000	30,141,000	126,033,920
95	Apr 7, 2026 07:26	4,737	92,494,742	34,160,000	32,151,000	126,038,016
96	Apr 7, 2026 07:30	4,737	94,610,108	36,170,000	30,141,000	126,042,112
97	Apr 7, 2026 07:31	4,737	92,932,679	36,174,000	30,145,000	126,042,112
98	Apr 7, 2026 07:32	4,746	89,888,152	37,825,000	28,624,000	126,033,920
99	Apr 7, 2026 07:01	4,750	89,394,782	36,276,000	30,230,000	126,042,112
100	Apr 7, 2026 07:07	4,751	90,498,640	35,737,000	30,773,000	126,038,016
101	Apr 7, 2026 06:55	4,760	91,322,980	35,809,000	30,836,000	126,193,664
102	Apr 7, 2026 07:34	4,766	88,694,528	35,853,000	30,873,000	126,246,912
103	Apr 7, 2026 06:54	4,779	101,868,946	35,946,000	30,953,000	126,242,816
104	Apr 7, 2026 07:31	4,781	90,757,601	38,964,000	27,974,000	126,042,112
105	Apr 7, 2026 07:15	4,783	97,268,998	35,980,000	30,983,000	126,038,016
106	Apr 7, 2026 07:22	4,793	89,167,773	36,057,000	31,049,000	126,038,016
107	Apr 7, 2026 07:15	4,795	88,682,759	38,070,000	29,053,000	126,038,016
108	Apr 7, 2026 07:17	4,808	95,274,129	36,169,000	31,146,000	126,074,880
109	Apr 7, 2026 07:35	4,818	89,626,907	37,690,000	29,755,000	126,070,784
110	Apr 7, 2026 06:57	4,830	93,834,314	36,792,000	30,825,000	126,246,912
111	Apr 7, 2026 07:14	4,837	86,607,910	38,839,000	28,880,000	126,038,016
112	Apr 7, 2026 06:59	4,844	96,675,221	37,895,000	29,917,000	126,025,728
113	Apr 7, 2026 07:13	4,870	96,451,549	38,098,000	30,077,000	126,255,104
114	Apr 7, 2026 07:12	4,933	89,750,534	40,034,000	29,025,000	126,042,112
115	Apr 7, 2026 07:21	4,987	97,872,947	39,894,000	29,920,000	126,033,920
116	Apr 7, 2026 07:24	5,029	95,959,113	32,725,000	37,684,000	126,025,728
117	Apr 7, 2026 06:55	5,053	99,312,651	40,852,000	29,892,000	126,038,016
118	Apr 7, 2026 07:22	5,122	95,178,486	39,839,000	31,871,000	126,255,104
119	Apr 7, 2026 06:54	5,188	105,096,880	41,357,000	31,270,000	126,242,816
120	Apr 7, 2026 07:25	5,387	103,253,918	40,687,000	34,733,000	126,038,016

Model	Intel(R) Xeon(R) CPU E3-1271 v3 @ 3.60GHz
Cores	1