Detailed Description

Benchmarks

Test Environment

Hardware Configuration

Component	Specification
CPU	12th Gen Intel Core i7-12800H (20 logical, 14 physical cores)
Base Clock	2.80 GHz
Turbo Clock	4.80 GHz
L1 Data Cache	48 KiB (×6 P-cores) + 32 KiB (×8 E-cores)
L1 Instruction Cache	32 KiB (×6 P-cores) + 64 KiB (×2 E-core clusters)
L2 Unified Cache	1.25 MiB (×6 P-cores) + 2 MiB (×2 E-core clusters)
L3 Unified Cache	24 MiB (×1 shared)
RAM	DDR4-3200 (32GB)
GPU	NVIDIA RTX A2000 4GB GDDR6

Software Configuration

Platform	Benchmark Framework	C++ Compiler	nfx-stringutils Version
Linux	Google Benchmark v1.9.4	GCC 14.2.0-x64	v1.0.0
Linux	Google Benchmark v1.9.4	Clang 19.1.7-x64	v1.0.0
Windows	Google Benchmark v1.9.4	MinGW GCC 14.2.0-x64	v1.0.0
Windows	Google Benchmark v1.9.4	Clang-GNU-CLI 19.1.5-x64	v1.0.0
Windows	Google Benchmark v1.9.4	Clang-MSVC-CLI 19.1.5-x64	v1.0.0
Windows	Google Benchmark v1.9.4	MSVC 19.44.35217.0-x64	v1.0.0

Performance Results

String Splitter Operations

Operation	Linux GCC	Linux Clang	Windows MinGW GCC	Windows Clang-GNU-CLI	Windows Clang-MSVC-CLI	Windows MSVC
Manual CSV Splitting	24.0 ns	26.5 ns	47.0 ns	77.3 ns	65.6 ns	35.6 ns
Splitter CSV Splitting	26.7 ns	35.0 ns	48.8 ns	51.1 ns	54.0 ns	36.1 ns
SplitView CSV Splitting	26.8 ns	35.3 ns	49.3 ns	51.4 ns	51.4 ns	36.6 ns
Manual Path Splitting	19.8 ns	24.3 ns	42.2 ns	66.4 ns	57.2 ns	31.3 ns
Splitter Path Splitting	22.2 ns	29.6 ns	41.4 ns	49.6 ns	43.4 ns	35.7 ns
SplitView Path Splitting	22.0 ns	29.9 ns	40.6 ns	48.0 ns	42.1 ns	34.5 ns
Manual Config Splitting	17.5 ns	19.7 ns	46.2 ns	54.8 ns	51.1 ns	24.4 ns
Splitter Config Splitting	17.2 ns	22.4 ns	53.8 ns	40.6 ns	38.9 ns	27.9 ns
SplitView Config Splitting	17.3 ns	22.8 ns	54.9 ns	41.9 ns	37.0 ns	27.0 ns
Splitter Zero Allocation	26.6 ns	34.5 ns	45.7 ns	43.9 ns	46.2 ns	34.7 ns

String Utilities Operations

Operation	Linux GCC	Linux Clang	Windows MinGW GCC	Windows Clang-GNU-CLI	Windows Clang-MSVC-CLI	Windows MSVC
std::isspace	23.8 ns	22.7 ns	38.8 ns	30.8 ns	31.4 ns	39.6 ns
nfx::string::isWhitespace	7.92 ns	6.87 ns	11.5 ns	9.39 ns	10.1 ns	20.1 ns
std::isdigit	4.98 ns	6.30 ns	7.00 ns	7.60 ns	7.55 ns	34.0 ns
nfx::string::isDigit	5.09 ns	5.11 ns	7.21 ns	8.25 ns	7.80 ns	15.6 ns
std::isalpha	24.9 ns	26.1 ns	39.5 ns	38.2 ns	38.6 ns	37.7 ns
nfx::string::isAlpha	5.17 ns	6.80 ns	6.80 ns	7.05 ns	7.88 ns	27.2 ns
std::string_view::empty	5.24 ns	6.60 ns	6.60 ns	9.17 ns	9.23 ns	17.4 ns
nfx::string::isEmpty	4.66 ns	6.57 ns	6.57 ns	8.84 ns	9.04 ns	18.0 ns
Manual isNullOrWhiteSpace	53.1 ns	49.3 ns	71.2 ns	49.3 ns	50.2 ns	68.0 ns
nfx::string::isNullOrWhiteSpace	14.5 ns	17.4 ns	21.1 ns	29.1 ns	25.0 ns	38.8 ns
Manual isAllDigits	22.8 ns	22.1 ns	29.6 ns	33.3 ns	34.2 ns	85.5 ns
nfx::string::isAllDigits	24.7 ns	25.5 ns	32.5 ns	32.3 ns	34.3 ns	41.4 ns
std::starts_with	11.7 ns	10.4 ns	24.9 ns	14.9 ns	14.3 ns	30.2 ns
nfx::string::startsWith	11.7 ns	13.4 ns	18.3 ns	17.7 ns	15.2 ns	31.6 ns
std::ends_with	10.4 ns	10.3 ns	14.4 ns	16.8 ns	15.2 ns	37.2 ns
nfx::string::endsWith	10.4 ns	10.3 ns	18.1 ns	14.8 ns	14.8 ns	32.4 ns
std::contains	57.0 ns	51.9 ns	109 ns	172 ns	169 ns	176 ns
nfx::string::contains	56.8 ns	57.0 ns	107 ns	187 ns	173 ns	176 ns
Manual trim	36.0 ns	38.2 ns	50.9 ns	135 ns	135 ns	297 ns
nfx::string::trim	30.3 ns	37.6 ns	37.6 ns	56.3 ns	42.9 ns	51.7 ns
std::tolower (char)	30.6 ns	27.3 ns	27.3 ns	31.3 ns	30.6 ns	42.7 ns
nfx::string::toLower (char)	3.55 ns	4.80 ns	4.80 ns	8.07 ns	8.54 ns	17.0 ns
std::transform tolower	490 ns	522 ns	690 ns	705 ns	670 ns	661 ns
nfx::string::toLower (string)	472 ns	432 ns	601 ns	660 ns	621 ns	932 ns
std::toupper (char)	30.3 ns	27.3 ns	27.3 ns	42.2 ns	41.4 ns	44.0 ns
nfx::string::toUpper (char)	3.57 ns	4.73 ns	4.73 ns	7.31 ns	7.12 ns	16.5 ns
std::transform toupper	529 ns	538 ns	667 ns	863 ns	798 ns	692 ns
nfx::string::toUpper (string)	488 ns	435 ns	644 ns	668 ns	643 ns	910 ns
std::from_chars (int)	13.5 ns	15.2 ns	24.7 ns	22.5 ns	20.6 ns	32.5 ns
nfx::string::tryParseInt	13.2 ns	17.9 ns	22.3 ns	20.2 ns	20.2 ns	45.7 ns
std::from_chars (double)	46.7 ns	47.0 ns	76.1 ns	138 ns	143 ns	188 ns
nfx::string::tryParseDouble	47.8 ns	49.2 ns	80.1 ns	142 ns	146 ns	193 ns
Manual isURIReserved	8.67 ns	8.07 ns	14.6 ns	10.2 ns	9.51 ns	25.6 ns
nfx::string::isURIReserved	8.85 ns	7.78 ns	11.2 ns	9.69 ns	9.34 ns	26.5 ns
Manual isURIUnreserved	10.6 ns	12.1 ns	14.4 ns	15.1 ns	14.5 ns	28.5 ns
nfx::string::isURIUnreserved	10.7 ns	12.1 ns	13.8 ns	14.4 ns	14.3 ns	28.3 ns

Benchmarks executed on October 30, 2025