runtime #
Description:
runtime
provides access to functions describing the current platform:
- whether it is 32bit or 64bit
- how many CPUs/cores are available
- whether the platform is little endian or big endian
- etc.
fn is_32bit #
fn is_32bit() bool
is_32bit returns true if the current executable is running on a 32 bit system.
fn is_64bit #
fn is_64bit() bool
is_64bit returns true if the current executable is running on a 64 bit system.
fn is_big_endian #
fn is_big_endian() bool
is_big_endian returns true if the current executable is running on a big-endian system.
fn is_little_endian #
fn is_little_endian() bool
is_little_endian returns true if the current executable is running on a little-endian system.
fn nr_cpus #
fn nr_cpus() int
nr_cpus returns the number of virtual CPU cores found on the system.
fn nr_jobs #
fn nr_jobs() int
nr_jobs returns the same as nr_cpus
with the difference that if an environment variable VJOBS
is set, and has a value > 0,
then nr_jobs
will return that number instead.
This is useful for runtime tweaking of e.g. threaded or concurrent code.