LAT_SYSCALL(8) - LMBENCH man page

NAME

lat_syscall - time simple entry into the operating system

SYNOPSIS

lat_syscall

DESCRIPTION

lat_syscall times how long it takes to write one byte to /dev/null. This is useful as a lower bound cost on anything that has to interact with the operating system.

OUTPUT

Output format is

Null syscall: 67 microseconds

ACKNOWLEDGEMENT

Funding for the development of this tool was provided by Sun Microsystems Computer Corporation.

SEE ALSO

lmbench(8).