fastx_host_memory.cuh File Reference

#include <algorithm>
#include <cstddef>
#include <cstdint>
#include <filesystem>
#include <string>
#include <string_view>
#include <cusbf/detail/host_parse.hpp>

Go to the source code of this file.

Namespaces
namespace	cusbf
namespace	cusbf::detail

Functions
size_t	cusbf::detail::fastx_host_ram_slack_bytes ()
size_t	cusbf::detail::query_available_host_bytes ()
	Available physical RAM (bytes) for mmap budgeting.
uint64_t	cusbf::detail::fastx_memory_map_max_bytes ()
	Upper bound on file bytes that may be mmap'd (env cap and available RAM minus slack).
bool	cusbf::detail::fastx_file_fits_in_memory (const std::filesystem::path &path)
	True when uncompressed path size is within fastx_memory_map_max_bytes.

Variables
constexpr size_t	cusbf::detail::kDefaultFastxHostRamSlackBytes = 4u << 30
	Default headroom left for the OS and other processes when sizing mmap.