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: 5,375

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jan 3, 2023 12:49	5,341	34,092,675	15,080,000	2,010,000	2,375,680
2	Jan 3, 2023 12:49	5,342	33,754,703	16,089,000	1,005,000	2,289,664
3	Jan 3, 2023 12:52	5,347	42,344,634	15,097,000	2,013,000	2,375,680
4	Jan 3, 2023 12:52	5,348	45,117,328	15,102,000	2,013,000	2,289,664
5	Jan 3, 2023 12:52	5,350	46,895,329	15,107,000	2,014,000	2,289,664
6	Jan 3, 2023 12:49	5,351	33,235,614	15,110,000	2,014,000	2,289,664
7	Jan 3, 2023 12:52	5,353	43,692,612	15,116,000	2,015,000	2,289,664
8	Jan 3, 2023 12:49	5,353	45,837,178	16,124,000	1,007,000	2,289,664
9	Jan 3, 2023 12:49	5,355	45,773,730	17,137,000	0	2,367,488
10	Jan 3, 2023 12:49	5,356	41,701,704	15,122,000	2,016,000	2,379,776
11	Jan 3, 2023 12:49	5,356	36,204,211	16,130,000	1,008,000	2,289,664
12	Jan 3, 2023 12:52	5,356	41,418,873	15,122,000	2,016,000	2,289,664
13	Jan 3, 2023 12:49	5,361	40,532,026	16,145,000	1,009,000	2,289,664
14	Jan 3, 2023 12:52	5,364	38,418,088	15,146,000	2,019,000	2,371,584
15	Jan 3, 2023 12:49	5,364	41,330,521	16,156,000	1,009,000	2,289,664
16	Jan 3, 2023 12:49	5,366	42,603,006	16,160,000	1,010,000	2,289,664
17	Jan 3, 2023 12:49	5,367	39,481,190	16,163,000	1,010,000	2,289,664
18	Jan 3, 2023 12:49	5,374	40,709,516	15,173,000	2,023,000	2,363,392
19	Jan 3, 2023 12:49	5,375	43,226,703	16,188,000	1,011,000	2,289,664
20	Jan 3, 2023 12:49	5,378	41,721,600	15,184,000	2,024,000	2,289,664
21	Jan 3, 2023 12:49	5,380	46,356,179	16,205,000	1,012,000	2,367,488
22	Jan 3, 2023 12:49	5,383	42,474,099	16,211,000	1,013,000	2,289,664
23	Jan 3, 2023 12:49	5,385	37,564,286	15,206,000	2,027,000	2,289,664
24	Jan 3, 2023 12:52	5,398	42,804,938	16,256,000	1,016,000	2,289,664
25	Jan 3, 2023 12:49	5,398	45,611,661	15,242,000	2,032,000	2,289,664
26	Jan 3, 2023 12:52	5,416	29,773,139	16,312,000	1,019,000	2,289,664
27	Jan 3, 2023 12:52	5,418	40,885,452	15,298,000	2,039,000	2,371,584
28	Jan 3, 2023 12:49	5,526	97,130,005	17,681,721	0	2,248,704
29	Jan 3, 2023 12:52	5,564	73,108,008	17,804,127	0	2,244,608
30	Jan 3, 2023 12:49	5,575	74,905,091	17,838,642	0	2,240,512
31	Jan 3, 2023 12:49	5,582	83,638,762	17,861,822	0	2,256,896
32	Jan 3, 2023 12:49	5,586	86,410,432	17,874,922	0	2,248,704
33	Jan 3, 2023 12:49	5,615	88,000,389	17,969,089	0	2,244,608
34	Jan 3, 2023 12:52	5,626	91,316,666	18,004,459	0	2,248,704
35	Jan 3, 2023 12:52	5,664	73,137,212	18,124,320	0	2,248,704
36	Jan 3, 2023 12:49	5,773	80,006,232	18,473,905	0	2,248,704

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