def do_balloon(self, memsize):
self.log.info('do_balloon(memsize={!r})'.format(memsize))
MAX_TRIES = 20
niter = 0
prev_memory_actual = None
for i in self.domdict.keys():
self.domdict[i].no_progress = False
while True:
self.log.debug('niter={:2d}/{:2d}'.format(niter, MAX_TRIES))
self.refresh_memactual()
xenfree = self.get_free_xen_memory()
self.log.info('xenfree={!r}'.format(xenfree))
if xenfree >= memsize + self.XEN_FREE_MEM_MIN:
self.inhibit_balloon_up()
return True
if prev_memory_actual is not None:
for i in prev_memory_actual.keys():
if prev_memory_actual[i] == self.domdict[i].memory_actual:
#domain not responding to memset requests, remove it from donors
self.domdict[i].no_progress = True
self.log.info('domain {} stuck at {}'.format(i, self.domdict[i].memory_actual))
memset_reqs = qmemman_algo.balloon(memsize + self.XEN_FREE_MEM_LEFT - xenfree, self.domdict)
self.log.info('memset_reqs={!r}'.format(memset_reqs))
if niter > MAX_TRIES or len(memset_reqs) == 0:
return False
prev_memory_actual = {}
for i in memset_reqs:
dom, mem = i
self.mem_set(dom, mem)
prev_memory_actual[dom] = self.domdict[dom].memory_actual
self.log.debug('sleeping for {} s'.format(self.BALOON_DELAY))
time.sleep(self.BALOON_DELAY)
niter = niter + 1
def do_balloon(self, memsize):
MAX_TRIES = 20
niter = 0
prev_memory_actual = None
for i in self.domdict.keys():
self.domdict[i].no_progress = False
print "do_balloon start"
while True:
self.refresh_memactual()
xenfree = self.get_free_xen_memory()
print 'got xenfree=', xenfree
if xenfree >= memsize + self.XEN_FREE_MEM_MIN:
self.inhibit_balloon_up()
return True
if prev_memory_actual is not None:
for i in prev_memory_actual.keys():
if prev_memory_actual[i] == self.domdict[i].memory_actual:
#domain not responding to memset requests, remove it from donors
self.domdict[i].no_progress = True
print 'domain', i, 'stuck at', self.domdict[i].memory_actual
memset_reqs = qmemman_algo.balloon(memsize + self.XEN_FREE_MEM_LEFT - xenfree, self.domdict)
print 'requests:', memset_reqs
if niter > MAX_TRIES or len(memset_reqs) == 0:
return False
prev_memory_actual = {}
for i in memset_reqs:
dom, mem = i
self.mem_set(dom, mem)
prev_memory_actual[dom] = self.domdict[dom].memory_actual
time.sleep(self.BALOON_DELAY)
niter = niter + 1
def do_balloon(self, memsize):
MAX_TRIES = 20
niter = 0
prev_memory_actual = None
for i in self.domdict.keys():
self.domdict[i].no_progress = False
print "do_balloon start"
while True:
self.refresh_memactual()
xenfree = self.get_free_xen_memory()
print 'got xenfree=', xenfree
if xenfree >= memsize + self.XEN_FREE_MEM_MIN:
self.inhibit_balloon_up()
return True
if prev_memory_actual is not None:
for i in prev_memory_actual.keys():
if prev_memory_actual[i] == self.domdict[i].memory_actual:
#domain not responding to memset requests, remove it from donors
self.domdict[i].no_progress = True
print 'domain', i, 'stuck at', self.domdict[
i].memory_actual
memset_reqs = qmemman_algo.balloon(
memsize + self.XEN_FREE_MEM_LEFT - xenfree, self.domdict)
print 'requests:', memset_reqs
if niter > MAX_TRIES or len(memset_reqs) == 0:
return False
prev_memory_actual = {}
for i in memset_reqs:
dom, mem = i
self.mem_set(dom, mem)
prev_memory_actual[dom] = self.domdict[dom].memory_actual
time.sleep(self.BALOON_DELAY)
niter = niter + 1
def do_balloon(self, memsize):
self.log.info('do_balloon(memsize={!r})'.format(memsize))
CHECK_PERIOD_S = 3
CHECK_MB_S = 100
niter = 0
prev_memory_actual = None
for i in self.domdict.keys():
self.domdict[i].no_progress = False
#: number of loop iterations for CHECK_PERIOD_S seconds
check_period = max(1, int((CHECK_PERIOD_S + 0.0) / self.BALOON_DELAY))
#: number of free memory bytes expected to get during CHECK_PERIOD_S
#: seconds
check_delta = CHECK_PERIOD_S * CHECK_MB_S * 1024 * 1024
#: helper array for holding free memory size, CHECK_PERIOD_S seconds
#: ago, at every loop iteration
xenfree_ring = [0] * check_period
while True:
self.log.debug('niter={:2d}'.format(niter))
self.refresh_memactual()
xenfree = self.get_free_xen_memory()
self.log.info('xenfree={!r}'.format(xenfree))
if xenfree >= memsize + self.XEN_FREE_MEM_MIN:
self.inhibit_balloon_up()
return True
# fail the request if over past CHECK_PERIOD_S seconds,
# we got less than CHECK_MB_S MB/s on average
ring_slot = niter % check_period
if niter >= check_period and xenfree < xenfree_ring[
ring_slot] + check_delta:
return False
xenfree_ring[ring_slot] = xenfree
if prev_memory_actual is not None:
for i in prev_memory_actual.keys():
if prev_memory_actual[i] == self.domdict[i].memory_actual:
#domain not responding to memset requests, remove it from donors
self.domdict[i].no_progress = True
self.log.info('domain {} stuck at {}'.format(
i, self.domdict[i].memory_actual))
memset_reqs = qmemman_algo.balloon(
memsize + self.XEN_FREE_MEM_LEFT - xenfree, self.domdict)
self.log.info('memset_reqs={!r}'.format(memset_reqs))
if len(memset_reqs) == 0:
return False
prev_memory_actual = {}
for i in memset_reqs:
dom, mem = i
self.mem_set(dom, mem)
prev_memory_actual[dom] = self.domdict[dom].memory_actual
self.log.debug('sleeping for {} s'.format(self.BALOON_DELAY))
time.sleep(self.BALOON_DELAY)
niter = niter + 1
def do_balloon(self, memsize):
self.log.info('do_balloon(memsize={!r})'.format(memsize))
CHECK_PERIOD_S = 3
CHECK_MB_S = 100
niter = 0
prev_memory_actual = None
for i in self.domdict.keys():
self.domdict[i].no_progress = False
#: number of loop iterations for CHECK_PERIOD_S seconds
check_period = max(1, int((CHECK_PERIOD_S + 0.0) / self.BALOON_DELAY))
#: number of free memory bytes expected to get during CHECK_PERIOD_S
#: seconds
check_delta = CHECK_PERIOD_S * CHECK_MB_S * 1024 * 1024
#: helper array for holding free memory size, CHECK_PERIOD_S seconds
#: ago, at every loop iteration
xenfree_ring = [0] * check_period
while True:
self.log.debug('niter={:2d}'.format(niter))
self.refresh_memactual()
xenfree = self.get_free_xen_memory()
self.log.info('xenfree={!r}'.format(xenfree))
if xenfree >= memsize + self.XEN_FREE_MEM_MIN:
self.inhibit_balloon_up()
return True
# fail the request if over past CHECK_PERIOD_S seconds,
# we got less than CHECK_MB_S MB/s on average
ring_slot = niter % check_period
if niter >= check_period and xenfree < xenfree_ring[ring_slot] + check_delta:
return False
xenfree_ring[ring_slot] = xenfree
if prev_memory_actual is not None:
for i in prev_memory_actual.keys():
if prev_memory_actual[i] == self.domdict[i].memory_actual:
#domain not responding to memset requests, remove it from donors
self.domdict[i].no_progress = True
self.log.info('domain {} stuck at {}'.format(i, self.domdict[i].memory_actual))
memset_reqs = qmemman_algo.balloon(memsize + self.XEN_FREE_MEM_LEFT - xenfree, self.domdict)
self.log.info('memset_reqs={!r}'.format(memset_reqs))
if len(memset_reqs) == 0:
return False
prev_memory_actual = {}
for i in memset_reqs:
dom, mem = i
self.mem_set(dom, mem)
prev_memory_actual[dom] = self.domdict[dom].memory_actual
self.log.debug('sleeping for {} s'.format(self.BALOON_DELAY))
time.sleep(self.BALOON_DELAY)
niter = niter + 1
def do_balloon(self, memsize):
self.log.info('do_balloon(memsize={!r})'.format(memsize))
MAX_TRIES = 20
niter = 0
prev_memory_actual = None
for i in self.domdict.keys():
self.domdict[i].no_progress = False
while True:
self.log.debug('niter={:2d}/{:2d}'.format(niter, MAX_TRIES))
self.refresh_memactual()
xenfree = self.get_free_xen_memory()
self.log.info('xenfree={!r}'.format(xenfree))
if xenfree >= memsize + self.XEN_FREE_MEM_MIN:
self.inhibit_balloon_up()
return True
if prev_memory_actual is not None:
for i in prev_memory_actual.keys():
if prev_memory_actual[i] == self.domdict[i].memory_actual:
#domain not responding to memset requests, remove it from donors
self.domdict[i].no_progress = True
self.log.info('domain {} stuck at {}'.format(
i, self.domdict[i].memory_actual))
memset_reqs = qmemman_algo.balloon(
memsize + self.XEN_FREE_MEM_LEFT - xenfree, self.domdict)
self.log.info('memset_reqs={!r}'.format(memset_reqs))
if niter > MAX_TRIES or len(memset_reqs) == 0:
return False
prev_memory_actual = {}
for i in memset_reqs:
dom, mem = i
self.mem_set(dom, mem)
prev_memory_actual[dom] = self.domdict[dom].memory_actual
self.log.debug('sleeping for {} s'.format(self.BALOON_DELAY))
time.sleep(self.BALOON_DELAY)
niter = niter + 1