from subprocess import PIPE, Popen, call
import sys
import yaml
+import os
-# return the amount of memory in kilobytes represented by s
+# return the amount of memory in kibibytes represented by s
def parseUnits(s):
num, unit = s.split(' ')
- return int(num) * {'kb':1, 'mb':1024}[unit.lower()]
+ assert unit == 'kB', "unexpected unit"
+ return int(num)
def main(argv):
"""
Calculate the amount of memory available for new VMs
- The numbers returned by xm info and xm info -c are in MB
- The numbers in /proc/xen/balloon have nice units
- All math is done in kilobytes for consistency
- Output is in MB
+ The numbers returned by xm info and xm info -c are in MiB
+ The numbers in /proc/xen/balloon are in KiB
+ All math is done in kibibytes for consistency
+ Output is in MiB
Bail if /etc/invirt/nocreate exists
"""
% ('/usr/sbin/xm info -c', p.returncode))
xminfoc = yaml.load(output, yaml.CSafeLoader)
- # In kilobytes
+ # In kibibytes
dom0minmem = int(xminfoc['dom0-min-mem']) * 1024
dom0_spare_memory = currentallocation - max(minimumtarget, dom0minmem)