tree 722d9fae5267667fdbe5f37f4e9b94e424faf38b
parent 457a7dd40f97812348701b4cefb5566da154ecc7
author Barret Rhoden <brho@cs.berkeley.edu> 1591658278 -0400
committer Barret Rhoden <brho@cs.berkeley.edu> 1591722618 -0400

parlib/linux: cache the value of the TSC frequency

Instead of computing it every time.  Note: we probably should get this
from an MSR, if possible.  Computing takes about a second, and is
usually close enough.

Signed-off-by: Barret Rhoden <brho@cs.berkeley.edu>