Count uint8

Count the number of bytes equal to 127 in a binary stream as fast as possible.

Input: 250 000 000 uint8 values in binary on STDIN.

Output: The count of elements equal to 127, printed as a decimal string.

Restrictions:30s512Mb 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.

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Score: 5,327

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jun 9, 2024 20:54	5,281	43,019,243	14,911,000	1,988,000	2,293,760
2	Jun 9, 2024 20:54	5,296	50,997,302	14,954,000	1,993,000	2,371,584
3	Jun 9, 2024 20:54	5,296	44,407,418	14,954,000	1,993,000	2,293,760
4	Jun 9, 2024 20:54	5,296	33,665,007	14,953,000	1,993,000	2,293,760
5	Jun 9, 2024 20:54	5,297	43,305,844	15,953,000	997,000	2,375,680
6	Jun 9, 2024 21:13	5,297	36,152,185	14,957,000	1,994,000	2,293,760
7	Jun 9, 2024 21:13	5,303	42,534,789	15,971,000	998,000	2,293,760
8	Jun 9, 2024 21:13	5,303	42,527,466	15,972,000	998,000	2,293,760
9	Jun 9, 2024 21:13	5,303	43,397,839	14,975,000	1,996,000	2,293,760
10	Jun 9, 2024 20:54	5,306	32,861,670	14,983,000	1,997,000	2,379,776
11	Jun 9, 2024 20:54	5,308	42,611,915	14,988,000	1,998,000	2,293,760
12	Jun 9, 2024 20:54	5,308	42,747,750	14,987,000	1,998,000	2,363,392
13	Jun 9, 2024 20:54	5,308	44,589,235	14,986,000	1,998,000	2,293,760
14	Jun 9, 2024 20:54	5,309	35,933,084	15,991,000	999,000	2,367,488
15	Jun 9, 2024 20:54	5,310	45,818,295	14,993,000	1,999,000	2,293,760
16	Jun 9, 2024 20:54	5,322	50,738,941	15,026,000	2,003,000	2,293,760
17	Jun 9, 2024 21:13	5,322	36,524,537	16,030,000	1,001,000	2,293,760
18	Jun 9, 2024 20:54	5,323	44,836,375	15,031,000	2,004,000	2,293,760
19	Jun 9, 2024 20:54	5,327	43,669,911	16,044,000	1,002,000	2,363,392
20	Jun 9, 2024 20:54	5,330	34,221,557	15,050,000	2,006,000	2,293,760
21	Jun 9, 2024 21:13	5,334	41,754,630	16,066,000	1,004,000	2,293,760
22	Jun 9, 2024 20:54	5,335	47,475,644	16,067,000	1,004,000	2,293,760
23	Jun 9, 2024 20:54	5,336	37,699,008	15,067,000	2,009,000	2,293,760
24	Jun 9, 2024 21:13	5,336	38,521,045	15,067,000	2,009,000	2,293,760
25	Jun 9, 2024 20:54	5,351	41,753,474	16,117,000	1,007,000	2,371,584
26	Jun 9, 2024 21:13	5,354	42,556,252	15,119,000	2,015,000	2,371,584
27	Jun 9, 2024 21:13	5,361	41,120,497	15,136,000	2,018,000	2,371,584
28	Jun 9, 2024 21:13	5,530	83,216,305	17,697,164	0	2,252,800
29	Jun 9, 2024 21:13	5,535	91,556,084	17,711,909	0	2,244,608
30	Jun 9, 2024 20:54	5,547	88,183,062	17,750,846	0	2,252,800
31	Jun 9, 2024 20:54	5,556	89,107,606	17,777,613	0	2,252,800
32	Jun 9, 2024 20:54	5,568	66,666,068	17,816,832	0	2,252,800
33	Jun 9, 2024 21:13	5,589	87,383,508	17,884,972	0	2,236,416
34	Jun 9, 2024 20:54	5,611	80,388,423	17,955,637	0	2,244,608
35	Jun 9, 2024 20:54	5,711	89,468,868	18,274,372	0	2,256,896
36	Jun 9, 2024 20:54	5,727	96,848,052	18,327,716	0	2,252,800

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