def main(max_size, new_entries):
cache = ftp_stat_cache.StatCache()
cache.resize(max_size)
#cache = {}
# Populate cache until it's full.
t1 = time.time()
L = range(max_size)
random.shuffle(L)
for i in xrange(max_size):
rand = L[i]
# The cache checks if entries start with "/".
cache["/%d" % rand] = rand
t2 = time.time()
print_statistics("Filling cache with %d entries" % max_size, t1, t2)
# Read the cache.
for i in xrange(max_size):
data = cache["/%d" % i]
t3 = time.time()
print_statistics("Reading the cache", t2, t3)
# Now that the cache is full, try to add 100 more entries,
# implicitly replacing old entries.
L = range(new_entries)
random.shuffle(L)
for i in xrange(new_entries):
rand = L[i]
# Make sure to add entries, not replace them.
cache["/%d" % (max_size + rand)] = rand
t4 = time.time()
print_statistics("Replacing %d entries" % new_entries, t3, t4)
def __init__(self, host):
self._host = host
self._path = host.path
# Use the Unix directory parser by default.
self._parser = UnixParser()
# Allow one chance to switch to another parser if the default
# doesn't work.
self._allow_parser_switching = True
# Cache only lstat results. `stat` works locally on `lstat` results.
self._lstat_cache = ftp_stat_cache.StatCache()
def setUp(self):
self.cache = ftp_stat_cache.StatCache()