free_memory = int(xminfo['free_memory']) * 1024
currentallocation = int(open('/sys/devices/system/xen_memory/xen_memory0/info/current_kb', 'r').read())
- minimumtarget = int(open('/sys/devices/system/xen_memory/xen_memory0/target_kb', 'r').read())
+# this information seems to have vanished in recent linux - we _want_ min_target_kb, but it doesn't seem to be
+# exposed anymore.
+# minimumtarget = int(open('/sys/devices/system/xen_memory/xen_memory0/target_kb', 'r').read())
p = Popen(['/usr/sbin/xm', 'info', '-c'], stdout=PIPE)
output = p.communicate()[0]
if p.returncode != 0:
# In kibibytes
dom0minmem = int(xminfoc['dom0-min-mem']) * 1024
- dom0_spare_memory = currentallocation - max(minimumtarget, dom0minmem)
+# dom0_spare_memory = currentallocation - max(minimumtarget, dom0minmem)
+ dom0_spare_memory = currentallocation - dom0minmem
print int((free_memory + dom0_spare_memory)/1024)
return 0