X-Git-Url: http://xvm.mit.edu/gitweb/invirt/packages/invirt-remote.git/blobdiff_plain/91cf1fc24419d0492c890daaa70febb8ab89e1cc..9b2c6cb76b2935133c0c1ed1626d077614b460ec:/host/usr/sbin/invirt-availability

diff --git a/host/usr/sbin/invirt-availability b/host/usr/sbin/invirt-availability
index 0122a8d..1dcf9c8 100644
--- a/host/usr/sbin/invirt-availability
+++ b/host/usr/sbin/invirt-availability
@@ -6,19 +6,21 @@ Gathers availability data for the VM host it's running on.
 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
     """
@@ -49,7 +51,7 @@ def main(argv):
                            % ('/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)