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denoland-deno/runtime/ops/os
Matt Mastracci 3487fde236
perf(core) Reduce copying and cloning in extension initialization (#18252)
Follow-up to #18210:

* we are passing the generated `cfg` object into the state function
rather than passing individual config fields
 * reduce cloning dramatically by making the state_fn `FnOnce`
 * `take` for `ExtensionBuilder` to avoid more unnecessary copies
 * renamed `config` to `options`
2023-03-17 22:15:27 +00:00
..
mod.rs perf(core) Reduce copying and cloning in extension initialization (#18252) 2023-03-17 22:15:27 +00:00
README.md chore(runtime): remove dependency on sys-info crate (#16441) 2022-11-02 12:47:00 +05:30
sys_info.rs fix(runtime/os): use GetPerformanceInfo for swap info on Windows (#17433) 2023-01-15 12:56:30 +00:00

os ops

loadavg

Target family Syscall Description
Linux sysinfo -
Windows - Returns DEFAULT_LOADAVG. There is no concept of loadavg on Windows
macOS, BSD getloadavg https://www.freebsd.org/cgi/man.cgi?query=getloadavg

os_release

Target family Syscall Description
Linux /proc/sys/kernel/osrelease -
Windows RtlGetVersion dwMajorVersion . dwMinorVersion . dwBuildNumber
macOS sysctl([CTL_KERN, KERN_OSRELEASE]) -

hostname

Target family Syscall Description
Unix gethostname(sysconf(_SC_HOST_NAME_MAX)) -
Windows GetHostNameW -

mem_info

Target family Syscall Description
Linux sysinfo -
Windows sysinfoapi::GlobalMemoryStatusEx -
macOS
 sysctl([CTL_HW, HW_MEMSIZE]); 
sysctl([CTL_VM, VM_SWAPUSAGE]);
host_statistics64(mach_host_self(), HOST_VM_INFO64)
-