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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KeefeScore: 4,469Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Apr 27, 2025 03:34	4,443	36,011,099	12,187,000	2,031,000	2,531,328
2	Apr 24, 2025 01:48	4,445	37,831,344	12,192,000	2,032,000	2,424,832
3	Apr 24, 2025 01:41	4,448	34,623,714	13,219,000	1,016,000	2,531,328
4	Apr 27, 2025 03:34	4,448	35,187,750	12,202,000	2,033,000	2,433,024
5	Apr 24, 2025 21:58	4,449	30,977,977	12,204,000	2,034,000	2,531,328
6	Apr 24, 2025 01:41	4,450	30,812,239	13,224,000	1,017,000	2,531,328
7	Apr 27, 2025 03:34	4,450	30,616,381	12,207,000	2,034,000	2,433,024
8	Apr 27, 2025 03:33	4,451	35,799,549	12,209,000	2,034,000	2,531,328
9	Apr 24, 2025 01:48	4,451	29,744,983	13,226,000	1,017,000	2,424,832
10	Apr 24, 2025 01:41	4,453	29,060,524	12,215,000	2,035,000	2,437,120
11	Apr 24, 2025 01:48	4,454	34,850,868	13,236,000	1,018,000	2,437,120
12	Apr 24, 2025 21:58	4,455	32,916,997	12,219,000	2,036,000	2,269,184
13	Apr 24, 2025 21:58	4,457	42,740,295	12,226,000	2,037,000	2,531,328
14	Apr 24, 2025 01:48	4,458	31,767,168	13,247,000	1,019,000	2,531,328
15	Apr 24, 2025 01:48	4,459	32,009,215	13,249,000	1,019,000	2,531,328
16	Apr 24, 2025 01:48	4,459	31,694,856	13,249,000	1,019,000	2,437,120
17	Apr 27, 2025 03:34	4,459	26,504,445	13,250,000	1,019,000	2,269,184
18	Apr 24, 2025 21:58	4,460	30,478,972	14,272,000	0	2,531,328
19	Apr 24, 2025 01:41	4,461	30,462,076	13,255,000	1,019,000	2,433,024
20	Apr 27, 2025 03:33	4,462	35,882,694	14,277,000	0	2,510,848
21	Apr 27, 2025 03:33	4,463	36,758,044	13,260,000	1,020,000	2,437,120
22	Apr 24, 2025 01:41	4,464	29,375,740	13,266,000	1,020,000	2,531,328
23	Apr 27, 2025 03:33	4,465	33,682,525	14,289,000	0	2,531,328
24	Apr 24, 2025 01:41	4,465	29,308,620	14,289,000	0	2,531,328
25	Apr 27, 2025 03:33	4,466	27,660,362	14,290,000	0	2,510,848
26	Apr 27, 2025 03:34	4,469	35,037,926	14,301,000	0	2,428,928
27	Apr 24, 2025 01:41	4,470	34,802,759	14,304,000	0	2,428,928
28	Apr 24, 2025 01:48	4,470	34,829,359	12,260,000	2,043,000	2,531,328
29	Apr 24, 2025 01:48	4,471	34,062,595	14,307,000	0	2,531,328
30	Apr 24, 2025 01:48	4,471	30,296,950	14,308,000	0	2,424,832
31	Apr 27, 2025 03:34	4,473	35,771,269	13,293,000	1,022,000	2,433,024
32	Apr 24, 2025 01:48	4,474	47,680,222	14,318,000	0	2,433,024
33	Apr 24, 2025 01:41	4,476	34,125,483	13,301,000	1,023,000	2,428,928
34	Apr 24, 2025 01:41	4,476	30,444,653	13,299,000	1,023,000	2,433,024
35	Apr 24, 2025 21:58	4,477	30,088,738	14,326,000	0	2,428,928
36	Apr 27, 2025 03:33	4,477	40,819,709	14,325,000	0	2,437,120
37	Apr 24, 2025 21:58	4,477	29,674,740	13,303,000	1,023,000	2,523,136
38	Apr 24, 2025 01:48	4,478	25,918,318	14,329,000	0	2,510,848
39	Apr 24, 2025 01:41	4,478	34,897,955	14,329,000	0	2,424,832
40	Apr 24, 2025 01:41	4,480	31,562,418	14,335,000	0	2,428,928
41	Apr 24, 2025 21:58	4,481	36,150,018	14,339,000	0	2,428,928
42	Apr 24, 2025 21:58	4,481	38,679,863	12,290,000	2,048,000	2,531,328
43	Apr 24, 2025 21:58	4,482	28,165,844	13,317,000	1,024,000	2,424,832
44	Apr 27, 2025 03:33	4,483	33,905,540	14,344,000	0	2,424,832
45	Apr 24, 2025 01:48	4,486	30,758,233	14,354,000	0	2,433,024
46	Apr 27, 2025 03:33	4,487	30,386,474	14,357,000	0	2,437,120
47	Apr 27, 2025 03:34	4,487	27,959,758	13,334,000	1,025,000	2,437,120
48	Apr 27, 2025 03:34	4,490	30,184,633	13,342,000	1,026,000	2,531,328
49	Apr 27, 2025 03:33	4,493	30,294,005	14,377,000	0	2,424,832
50	Apr 27, 2025 03:34	4,493	28,717,774	14,378,000	0	2,441,216
51	Apr 24, 2025 01:41	4,508	27,536,540	14,427,000	0	2,531,328

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