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: 5,341

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jun 9, 2024 20:36	5,299	46,861,436	14,962,000	1,994,000	2,293,760
2	Jun 9, 2024 20:38	5,311	42,564,601	15,997,000	999,000	2,293,760
3	Jun 9, 2024 20:39	5,314	33,021,158	15,006,000	2,000,000	2,293,760
4	Jun 9, 2024 20:39	5,314	37,126,395	15,005,000	2,000,000	2,375,680
5	Jun 9, 2024 20:39	5,314	43,084,702	16,004,000	1,000,000	2,293,760
6	Jun 9, 2024 20:38	5,316	40,665,132	15,010,000	2,001,000	2,289,664
7	Jun 9, 2024 20:39	5,317	45,249,126	16,013,000	1,000,000	2,293,760
8	Jun 9, 2024 20:39	5,318	34,032,913	16,018,000	1,001,000	2,293,760
9	Jun 9, 2024 20:36	5,319	40,383,791	15,019,000	2,002,000	2,371,584
10	Jun 9, 2024 20:39	5,322	32,660,757	15,026,000	2,003,000	2,371,584
11	Jun 9, 2024 20:36	5,323	34,482,297	15,030,000	2,004,000	2,367,488
12	Jun 9, 2024 20:38	5,323	44,195,244	16,032,000	1,002,000	2,367,488
13	Jun 9, 2024 20:36	5,324	42,785,164	15,032,000	2,004,000	2,478,080
14	Jun 9, 2024 20:38	5,326	42,948,770	15,037,000	2,005,000	2,375,680
15	Jun 9, 2024 20:38	5,327	43,176,163	16,044,000	1,002,000	2,293,760
16	Jun 9, 2024 20:36	5,333	33,846,800	15,057,000	2,007,000	2,379,776
17	Jun 9, 2024 20:36	5,340	45,589,530	16,084,000	1,005,000	2,367,488
18	Jun 9, 2024 20:38	5,340	44,107,851	16,083,000	1,005,000	2,293,760
19	Jun 9, 2024 20:38	5,341	36,264,030	17,090,000	0	2,293,760
20	Jun 9, 2024 20:36	5,342	51,917,810	16,088,000	1,005,000	2,375,680
21	Jun 9, 2024 20:36	5,342	47,801,691	16,088,000	1,005,000	2,371,584
22	Jun 9, 2024 20:39	5,343	39,693,575	15,088,000	2,011,000	2,293,760
23	Jun 9, 2024 20:39	5,343	36,097,413	15,087,000	2,011,000	2,367,488
24	Jun 9, 2024 20:38	5,348	40,468,076	17,114,000	0	2,486,272
25	Jun 9, 2024 20:39	5,351	41,678,859	15,110,000	2,014,000	2,363,392
26	Jun 9, 2024 20:38	5,367	36,653,777	16,163,000	1,010,000	2,363,392
27	Jun 9, 2024 20:36	5,374	39,676,392	15,174,000	2,023,000	2,453,504
28	Jun 9, 2024 20:39	5,542	79,698,878	17,735,501	0	2,248,704
29	Jun 9, 2024 20:36	5,546	80,106,464	17,748,775	0	2,252,800
30	Jun 9, 2024 20:38	5,550	88,950,421	17,759,211	0	2,244,608
31	Jun 9, 2024 20:36	5,577	78,313,263	17,846,212	0	2,248,704
32	Jun 9, 2024 20:38	5,590	63,326,260	17,888,483	0	2,248,704
33	Jun 9, 2024 20:38	5,595	85,161,218	17,904,039	0	2,248,704
34	Jun 9, 2024 20:36	5,611	60,453,778	17,956,472	0	2,236,416
35	Jun 9, 2024 20:39	5,618	61,490,202	17,978,137	0	2,256,896
36	Jun 9, 2024 20:39	5,690	79,069,309	18,208,241	0	2,244,608

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