mirror of
https://mau.dev/maunium/synapse.git
synced 2024-12-15 17:43:52 +01:00
Merge pull request #1815 from matrix-org/erikj/iter_cache_size
Optionally measure size of cache by sum of length of values
This commit is contained in:
Erik Johnston
GitHub
commit
d11d7cdf87
12 changed files with 308 additions and 85 deletions
|
|
@ -41,7 +41,7 @@ KeyStateTuple = namedtuple("KeyStateTuple", ("context", "type", "state_key"))
|
|||
CACHE_SIZE_FACTOR = float(os.environ.get("SYNAPSE_CACHE_FACTOR", 0.1))
|
||||
|
||||
|
||||
SIZE_OF_CACHE = int(1000 * CACHE_SIZE_FACTOR)
|
||||
SIZE_OF_CACHE = int(100000 * CACHE_SIZE_FACTOR)
|
||||
EVICTION_TIMEOUT_SECONDS = 60 * 60
|
||||
|
||||
|
||||
|
|
@ -77,6 +77,9 @@ class _StateCacheEntry(object):
|
|||
else:
|
||||
self.state_id = _gen_state_id()
|
||||
|
||||
def __len__(self):
|
||||
return len(self.state)
|
||||
|
||||
|
||||
class StateHandler(object):
|
||||
""" Responsible for doing state conflict resolution.
|
||||
|
|
@ -99,6 +102,7 @@ class StateHandler(object):
|
|||
clock=self.clock,
|
||||
max_len=SIZE_OF_CACHE,
|
||||
expiry_ms=EVICTION_TIMEOUT_SECONDS * 1000,
|
||||
iterable=True,
|
||||
reset_expiry_on_get=True,
|
||||
)
|
||||
|
||||
|
|
|
|||
|
|
@ -169,7 +169,7 @@ class SQLBaseStore(object):
|
|||
max_entries=hs.config.event_cache_size)
|
||||
|
||||
self._state_group_cache = DictionaryCache(
|
||||
"*stateGroupCache*", 2000 * CACHE_SIZE_FACTOR
|
||||
"*stateGroupCache*", 100000 * CACHE_SIZE_FACTOR
|
||||
)
|
||||
|
||||
self._event_fetch_lock = threading.Condition()
|
||||
|
|
|
|||
|
|
@ -390,7 +390,8 @@ class RoomMemberStore(SQLBaseStore):
|
|||
room_id, state_group, state_ids,
|
||||
)
|
||||
|
||||
@cachedInlineCallbacks(num_args=2, cache_context=True)
|
||||
@cachedInlineCallbacks(num_args=2, cache_context=True, iterable=True,
|
||||
max_entries=100000)
|
||||
def _get_joined_users_from_context(self, room_id, state_group, current_state_ids,
|
||||
cache_context, event=None):
|
||||
# We don't use `state_group`, it's there so that we can cache based
|
||||
|
|
|
|||
|
|
@ -284,7 +284,7 @@ class StateStore(SQLBaseStore):
|
|||
return [r[0] for r in results]
|
||||
return self.runInteraction("get_current_state_for_key", f)
|
||||
|
||||
@cached(num_args=2, max_entries=1000)
|
||||
@cached(num_args=2, max_entries=100000, iterable=True)
|
||||
def _get_state_group_from_group(self, group, types):
|
||||
raise NotImplementedError()
|
||||
|
||||
|
|
|
|||
|
|
@ -17,7 +17,7 @@ import logging
|
|||
from synapse.util.async import ObservableDeferred
|
||||
from synapse.util import unwrapFirstError
|
||||
from synapse.util.caches.lrucache import LruCache
|
||||
from synapse.util.caches.treecache import TreeCache
|
||||
from synapse.util.caches.treecache import TreeCache, iterate_tree_cache_entry
|
||||
from synapse.util.logcontext import (
|
||||
PreserveLoggingContext, preserve_context_over_deferred, preserve_context_over_fn
|
||||
)
|
||||
|
|
@ -42,6 +42,25 @@ _CacheSentinel = object()
|
|||
CACHE_SIZE_FACTOR = float(os.environ.get("SYNAPSE_CACHE_FACTOR", 0.1))
|
||||
|
||||
|
||||
class CacheEntry(object):
|
||||
__slots__ = [
|
||||
"deferred", "sequence", "callbacks", "invalidated"
|
||||
]
|
||||
|
||||
def __init__(self, deferred, sequence, callbacks):
|
||||
self.deferred = deferred
|
||||
self.sequence = sequence
|
||||
self.callbacks = set(callbacks)
|
||||
self.invalidated = False
|
||||
|
||||
def invalidate(self):
|
||||
if not self.invalidated:
|
||||
self.invalidated = True
|
||||
for callback in self.callbacks:
|
||||
callback()
|
||||
self.callbacks.clear()
|
||||
|
||||
|
||||
class Cache(object):
|
||||
__slots__ = (
|
||||
"cache",
|
||||
|
|
@ -51,12 +70,16 @@ class Cache(object):
|
|||
"sequence",
|
||||
"thread",
|
||||
"metrics",
|
||||
"_pending_deferred_cache",
|
||||
)
|
||||
|
||||
def __init__(self, name, max_entries=1000, keylen=1, tree=False):
|
||||
def __init__(self, name, max_entries=1000, keylen=1, tree=False, iterable=False):
|
||||
cache_type = TreeCache if tree else dict
|
||||
self._pending_deferred_cache = cache_type()
|
||||
|
||||
self.cache = LruCache(
|
||||
max_size=max_entries, keylen=keylen, cache_type=cache_type
|
||||
max_size=max_entries, keylen=keylen, cache_type=cache_type,
|
||||
size_callback=(lambda d: len(d.result)) if iterable else None,
|
||||
)
|
||||
|
||||
self.name = name
|
||||
|
|
@ -76,7 +99,15 @@ class Cache(object):
|
|||
)
|
||||
|
||||
def get(self, key, default=_CacheSentinel, callback=None):
|
||||
val = self.cache.get(key, _CacheSentinel, callback=callback)
|
||||
callbacks = [callback] if callback else []
|
||||
val = self._pending_deferred_cache.get(key, _CacheSentinel)
|
||||
if val is not _CacheSentinel:
|
||||
if val.sequence == self.sequence:
|
||||
val.callbacks.update(callbacks)
|
||||
self.metrics.inc_hits()
|
||||
return val.deferred
|
||||
|
||||
val = self.cache.get(key, _CacheSentinel, callbacks=callbacks)
|
||||
if val is not _CacheSentinel:
|
||||
self.metrics.inc_hits()
|
||||
return val
|
||||
|
|
@ -88,15 +119,39 @@ class Cache(object):
|
|||
else:
|
||||
return default
|
||||
|
||||
def update(self, sequence, key, value, callback=None):
|
||||
def set(self, key, value, callback=None):
|
||||
callbacks = [callback] if callback else []
|
||||
self.check_thread()
|
||||
if self.sequence == sequence:
|
||||
# Only update the cache if the caches sequence number matches the
|
||||
# number that the cache had before the SELECT was started (SYN-369)
|
||||
self.prefill(key, value, callback=callback)
|
||||
entry = CacheEntry(
|
||||
deferred=value,
|
||||
sequence=self.sequence,
|
||||
callbacks=callbacks,
|
||||
)
|
||||
|
||||
entry.callbacks.update(callbacks)
|
||||
|
||||
existing_entry = self._pending_deferred_cache.pop(key, None)
|
||||
if existing_entry:
|
||||
existing_entry.invalidate()
|
||||
|
||||
self._pending_deferred_cache[key] = entry
|
||||
|
||||
def shuffle(result):
|
||||
if self.sequence == entry.sequence:
|
||||
existing_entry = self._pending_deferred_cache.pop(key, None)
|
||||
if existing_entry is entry:
|
||||
self.cache.set(key, entry.deferred, entry.callbacks)
|
||||
else:
|
||||
entry.invalidate()
|
||||
else:
|
||||
entry.invalidate()
|
||||
return result
|
||||
|
||||
entry.deferred.addCallback(shuffle)
|
||||
|
||||
def prefill(self, key, value, callback=None):
|
||||
self.cache.set(key, value, callback=callback)
|
||||
callbacks = [callback] if callback else []
|
||||
self.cache.set(key, value, callbacks=callbacks)
|
||||
|
||||
def invalidate(self, key):
|
||||
self.check_thread()
|
||||
|
|
@ -108,6 +163,10 @@ class Cache(object):
|
|||
# Increment the sequence number so that any SELECT statements that
|
||||
# raced with the INSERT don't update the cache (SYN-369)
|
||||
self.sequence += 1
|
||||
entry = self._pending_deferred_cache.pop(key, None)
|
||||
if entry:
|
||||
entry.invalidate()
|
||||
|
||||
self.cache.pop(key, None)
|
||||
|
||||
def invalidate_many(self, key):
|
||||
|
|
@ -119,6 +178,12 @@ class Cache(object):
|
|||
self.sequence += 1
|
||||
self.cache.del_multi(key)
|
||||
|
||||
val = self._pending_deferred_cache.pop(key, None)
|
||||
if val is not None:
|
||||
entry_dict, _ = val
|
||||
for entry in iterate_tree_cache_entry(entry_dict):
|
||||
entry.invalidate()
|
||||
|
||||
def invalidate_all(self):
|
||||
self.check_thread()
|
||||
self.sequence += 1
|
||||
|
|
@ -155,7 +220,7 @@ class CacheDescriptor(object):
|
|||
|
||||
"""
|
||||
def __init__(self, orig, max_entries=1000, num_args=1, tree=False,
|
||||
inlineCallbacks=False, cache_context=False):
|
||||
inlineCallbacks=False, cache_context=False, iterable=False):
|
||||
max_entries = int(max_entries * CACHE_SIZE_FACTOR)
|
||||
|
||||
self.orig = orig
|
||||
|
|
@ -169,6 +234,8 @@ class CacheDescriptor(object):
|
|||
self.num_args = num_args
|
||||
self.tree = tree
|
||||
|
||||
self.iterable = iterable
|
||||
|
||||
all_args = inspect.getargspec(orig)
|
||||
self.arg_names = all_args.args[1:num_args + 1]
|
||||
|
||||
|
|
@ -203,6 +270,7 @@ class CacheDescriptor(object):
|
|||
max_entries=self.max_entries,
|
||||
keylen=self.num_args,
|
||||
tree=self.tree,
|
||||
iterable=self.iterable,
|
||||
)
|
||||
|
||||
@functools.wraps(self.orig)
|
||||
|
|
@ -243,11 +311,6 @@ class CacheDescriptor(object):
|
|||
|
||||
return preserve_context_over_deferred(observer)
|
||||
except KeyError:
|
||||
# Get the sequence number of the cache before reading from the
|
||||
# database so that we can tell if the cache is invalidated
|
||||
# while the SELECT is executing (SYN-369)
|
||||
sequence = cache.sequence
|
||||
|
||||
ret = defer.maybeDeferred(
|
||||
preserve_context_over_fn,
|
||||
self.function_to_call,
|
||||
|
|
@ -261,7 +324,7 @@ class CacheDescriptor(object):
|
|||
ret.addErrback(onErr)
|
||||
|
||||
ret = ObservableDeferred(ret, consumeErrors=True)
|
||||
cache.update(sequence, cache_key, ret, callback=invalidate_callback)
|
||||
cache.set(cache_key, ret, callback=invalidate_callback)
|
||||
|
||||
return preserve_context_over_deferred(ret.observe())
|
||||
|
||||
|
|
@ -359,7 +422,6 @@ class CacheListDescriptor(object):
|
|||
missing.append(arg)
|
||||
|
||||
if missing:
|
||||
sequence = cache.sequence
|
||||
args_to_call = dict(arg_dict)
|
||||
args_to_call[self.list_name] = missing
|
||||
|
||||
|
|
@ -382,8 +444,8 @@ class CacheListDescriptor(object):
|
|||
|
||||
key = list(keyargs)
|
||||
key[self.list_pos] = arg
|
||||
cache.update(
|
||||
sequence, tuple(key), observer,
|
||||
cache.set(
|
||||
tuple(key), observer,
|
||||
callback=invalidate_callback
|
||||
)
|
||||
|
||||
|
|
@ -421,17 +483,20 @@ class _CacheContext(namedtuple("_CacheContext", ("cache", "key"))):
|
|||
self.cache.invalidate(self.key)
|
||||
|
||||
|
||||
def cached(max_entries=1000, num_args=1, tree=False, cache_context=False):
|
||||
def cached(max_entries=1000, num_args=1, tree=False, cache_context=False,
|
||||
iterable=False):
|
||||
return lambda orig: CacheDescriptor(
|
||||
orig,
|
||||
max_entries=max_entries,
|
||||
num_args=num_args,
|
||||
tree=tree,
|
||||
cache_context=cache_context,
|
||||
iterable=iterable,
|
||||
)
|
||||
|
||||
|
||||
def cachedInlineCallbacks(max_entries=1000, num_args=1, tree=False, cache_context=False):
|
||||
def cachedInlineCallbacks(max_entries=1000, num_args=1, tree=False, cache_context=False,
|
||||
iterable=False):
|
||||
return lambda orig: CacheDescriptor(
|
||||
orig,
|
||||
max_entries=max_entries,
|
||||
|
|
@ -439,6 +504,7 @@ def cachedInlineCallbacks(max_entries=1000, num_args=1, tree=False, cache_contex
|
|||
tree=tree,
|
||||
inlineCallbacks=True,
|
||||
cache_context=cache_context,
|
||||
iterable=iterable,
|
||||
)
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -23,7 +23,9 @@ import logging
|
|||
logger = logging.getLogger(__name__)
|
||||
|
||||
|
||||
DictionaryEntry = namedtuple("DictionaryEntry", ("full", "value"))
|
||||
class DictionaryEntry(namedtuple("DictionaryEntry", ("full", "value"))):
|
||||
def __len__(self):
|
||||
return len(self.value)
|
||||
|
||||
|
||||
class DictionaryCache(object):
|
||||
|
|
@ -32,7 +34,7 @@ class DictionaryCache(object):
|
|||
"""
|
||||
|
||||
def __init__(self, name, max_entries=1000):
|
||||
self.cache = LruCache(max_size=max_entries)
|
||||
self.cache = LruCache(max_size=max_entries, size_callback=len)
|
||||
|
||||
self.name = name
|
||||
self.sequence = 0
|
||||
|
|
|
|||
|
|
@ -15,6 +15,7 @@
|
|||
|
||||
from synapse.util.caches import register_cache
|
||||
|
||||
from collections import OrderedDict
|
||||
import logging
|
||||
|
||||
|
||||
|
|
@ -23,7 +24,7 @@ logger = logging.getLogger(__name__)
|
|||
|
||||
class ExpiringCache(object):
|
||||
def __init__(self, cache_name, clock, max_len=0, expiry_ms=0,
|
||||
reset_expiry_on_get=False):
|
||||
reset_expiry_on_get=False, iterable=False):
|
||||
"""
|
||||
Args:
|
||||
cache_name (str): Name of this cache, used for logging.
|
||||
|
|
@ -36,6 +37,8 @@ class ExpiringCache(object):
|
|||
evicted based on time.
|
||||
reset_expiry_on_get (bool): If true, will reset the expiry time for
|
||||
an item on access. Defaults to False.
|
||||
iterable (bool): If true, the size is calculated by summing the
|
||||
sizes of all entries, rather than the number of entries.
|
||||
|
||||
"""
|
||||
self._cache_name = cache_name
|
||||
|
|
@ -47,9 +50,13 @@ class ExpiringCache(object):
|
|||
|
||||
self._reset_expiry_on_get = reset_expiry_on_get
|
||||
|
||||
self._cache = {}
|
||||
self._cache = OrderedDict()
|
||||
|
||||
self.metrics = register_cache(cache_name, self._cache)
|
||||
self.metrics = register_cache(cache_name, self)
|
||||
|
||||
self.iterable = iterable
|
||||
|
||||
self._size_estimate = 0
|
||||
|
||||
def start(self):
|
||||
if not self._expiry_ms:
|
||||
|
|
@ -65,15 +72,14 @@ class ExpiringCache(object):
|
|||
now = self._clock.time_msec()
|
||||
self._cache[key] = _CacheEntry(now, value)
|
||||
|
||||
# Evict if there are now too many items
|
||||
if self._max_len and len(self._cache.keys()) > self._max_len:
|
||||
sorted_entries = sorted(
|
||||
self._cache.items(),
|
||||
key=lambda item: item[1].time,
|
||||
)
|
||||
if self.iterable:
|
||||
self._size_estimate += len(value)
|
||||
|
||||
for k, _ in sorted_entries[self._max_len:]:
|
||||
self._cache.pop(k)
|
||||
# Evict if there are now too many items
|
||||
while self._max_len and len(self) > self._max_len:
|
||||
_key, value = self._cache.popitem(last=False)
|
||||
if self.iterable:
|
||||
self._size_estimate -= len(value.value)
|
||||
|
||||
def __getitem__(self, key):
|
||||
try:
|
||||
|
|
@ -99,7 +105,7 @@ class ExpiringCache(object):
|
|||
# zero expiry time means don't expire. This should never get called
|
||||
# since we have this check in start too.
|
||||
return
|
||||
begin_length = len(self._cache)
|
||||
begin_length = len(self)
|
||||
|
||||
now = self._clock.time_msec()
|
||||
|
||||
|
|
@ -110,15 +116,20 @@ class ExpiringCache(object):
|
|||
keys_to_delete.add(key)
|
||||
|
||||
for k in keys_to_delete:
|
||||
self._cache.pop(k)
|
||||
value = self._cache.pop(k)
|
||||
if self.iterable:
|
||||
self._size_estimate -= len(value.value)
|
||||
|
||||
logger.debug(
|
||||
"[%s] _prune_cache before: %d, after len: %d",
|
||||
self._cache_name, begin_length, len(self._cache)
|
||||
self._cache_name, begin_length, len(self)
|
||||
)
|
||||
|
||||
def __len__(self):
|
||||
return len(self._cache)
|
||||
if self.iterable:
|
||||
return self._size_estimate
|
||||
else:
|
||||
return len(self._cache)
|
||||
|
||||
|
||||
class _CacheEntry(object):
|
||||
|
|
|
|||
|
|
@ -49,7 +49,7 @@ class LruCache(object):
|
|||
Can also set callbacks on objects when getting/setting which are fired
|
||||
when that key gets invalidated/evicted.
|
||||
"""
|
||||
def __init__(self, max_size, keylen=1, cache_type=dict):
|
||||
def __init__(self, max_size, keylen=1, cache_type=dict, size_callback=None):
|
||||
cache = cache_type()
|
||||
self.cache = cache # Used for introspection.
|
||||
list_root = _Node(None, None, None, None)
|
||||
|
|
@ -58,6 +58,12 @@ class LruCache(object):
|
|||
|
||||
lock = threading.Lock()
|
||||
|
||||
def evict():
|
||||
while cache_len() > max_size:
|
||||
todelete = list_root.prev_node
|
||||
delete_node(todelete)
|
||||
cache.pop(todelete.key, None)
|
||||
|
||||
def synchronized(f):
|
||||
@wraps(f)
|
||||
def inner(*args, **kwargs):
|
||||
|
|
@ -66,6 +72,16 @@ class LruCache(object):
|
|||
|
||||
return inner
|
||||
|
||||
cached_cache_len = [0]
|
||||
if size_callback is not None:
|
||||
def cache_len():
|
||||
return cached_cache_len[0]
|
||||
else:
|
||||
def cache_len():
|
||||
return len(cache)
|
||||
|
||||
self.len = synchronized(cache_len)
|
||||
|
||||
def add_node(key, value, callbacks=set()):
|
||||
prev_node = list_root
|
||||
next_node = prev_node.next_node
|
||||
|
|
@ -74,6 +90,9 @@ class LruCache(object):
|
|||
next_node.prev_node = node
|
||||
cache[key] = node
|
||||
|
||||
if size_callback:
|
||||
cached_cache_len[0] += size_callback(node.value)
|
||||
|
||||
def move_node_to_front(node):
|
||||
prev_node = node.prev_node
|
||||
next_node = node.next_node
|
||||
|
|
@ -92,23 +111,25 @@ class LruCache(object):
|
|||
prev_node.next_node = next_node
|
||||
next_node.prev_node = prev_node
|
||||
|
||||
if size_callback:
|
||||
cached_cache_len[0] -= size_callback(node.value)
|
||||
|
||||
for cb in node.callbacks:
|
||||
cb()
|
||||
node.callbacks.clear()
|
||||
|
||||
@synchronized
|
||||
def cache_get(key, default=None, callback=None):
|
||||
def cache_get(key, default=None, callbacks=[]):
|
||||
node = cache.get(key, None)
|
||||
if node is not None:
|
||||
move_node_to_front(node)
|
||||
if callback:
|
||||
node.callbacks.add(callback)
|
||||
node.callbacks.update(callbacks)
|
||||
return node.value
|
||||
else:
|
||||
return default
|
||||
|
||||
@synchronized
|
||||
def cache_set(key, value, callback=None):
|
||||
def cache_set(key, value, callbacks=[]):
|
||||
node = cache.get(key, None)
|
||||
if node is not None:
|
||||
if value != node.value:
|
||||
|
|
@ -116,21 +137,18 @@ class LruCache(object):
|
|||
cb()
|
||||
node.callbacks.clear()
|
||||
|
||||
if callback:
|
||||
node.callbacks.add(callback)
|
||||
if size_callback:
|
||||
cached_cache_len[0] -= size_callback(node.value)
|
||||
cached_cache_len[0] += size_callback(value)
|
||||
|
||||
node.callbacks.update(callbacks)
|
||||
|
||||
move_node_to_front(node)
|
||||
node.value = value
|
||||
else:
|
||||
if callback:
|
||||
callbacks = set([callback])
|
||||
else:
|
||||
callbacks = set()
|
||||
add_node(key, value, callbacks)
|
||||
if len(cache) > max_size:
|
||||
todelete = list_root.prev_node
|
||||
delete_node(todelete)
|
||||
cache.pop(todelete.key, None)
|
||||
add_node(key, value, set(callbacks))
|
||||
|
||||
evict()
|
||||
|
||||
@synchronized
|
||||
def cache_set_default(key, value):
|
||||
|
|
@ -139,10 +157,7 @@ class LruCache(object):
|
|||
return node.value
|
||||
else:
|
||||
add_node(key, value)
|
||||
if len(cache) > max_size:
|
||||
todelete = list_root.prev_node
|
||||
delete_node(todelete)
|
||||
cache.pop(todelete.key, None)
|
||||
evict()
|
||||
return value
|
||||
|
||||
@synchronized
|
||||
|
|
@ -175,10 +190,6 @@ class LruCache(object):
|
|||
cb()
|
||||
cache.clear()
|
||||
|
||||
@synchronized
|
||||
def cache_len():
|
||||
return len(cache)
|
||||
|
||||
@synchronized
|
||||
def cache_contains(key):
|
||||
return key in cache
|
||||
|
|
@ -190,7 +201,7 @@ class LruCache(object):
|
|||
self.pop = cache_pop
|
||||
if cache_type is TreeCache:
|
||||
self.del_multi = cache_del_multi
|
||||
self.len = cache_len
|
||||
self.len = synchronized(cache_len)
|
||||
self.contains = cache_contains
|
||||
self.clear = cache_clear
|
||||
|
||||
|
|
|
|||
|
|
@ -65,12 +65,27 @@ class TreeCache(object):
|
|||
return popped
|
||||
|
||||
def values(self):
|
||||
return [e.value for e in self.root.values()]
|
||||
return list(iterate_tree_cache_entry(self.root))
|
||||
|
||||
def __len__(self):
|
||||
return self.size
|
||||
|
||||
|
||||
def iterate_tree_cache_entry(d):
|
||||
"""Helper function to iterate over the leaves of a tree, i.e. a dict of that
|
||||
can contain dicts.
|
||||
"""
|
||||
if isinstance(d, dict):
|
||||
for value_d in d.itervalues():
|
||||
for value in iterate_tree_cache_entry(value_d):
|
||||
yield value
|
||||
else:
|
||||
if isinstance(d, _Entry):
|
||||
yield d.value
|
||||
else:
|
||||
yield d
|
||||
|
||||
|
||||
class _Entry(object):
|
||||
__slots__ = ["value"]
|
||||
|
||||
|
|
|
|||
|
|
@ -241,7 +241,7 @@ class CacheDecoratorTestCase(unittest.TestCase):
|
|||
callcount2 = [0]
|
||||
|
||||
class A(object):
|
||||
@cached(max_entries=2)
|
||||
@cached(max_entries=20) # HACK: This makes it 2 due to cache factor
|
||||
def func(self, key):
|
||||
callcount[0] += 1
|
||||
return key
|
||||
|
|
@ -258,6 +258,10 @@ class CacheDecoratorTestCase(unittest.TestCase):
|
|||
self.assertEquals(callcount[0], 2)
|
||||
self.assertEquals(callcount2[0], 2)
|
||||
|
||||
yield a.func2("foo")
|
||||
self.assertEquals(callcount[0], 2)
|
||||
self.assertEquals(callcount2[0], 2)
|
||||
|
||||
yield a.func("foo3")
|
||||
|
||||
self.assertEquals(callcount[0], 3)
|
||||
|
|
|
|||
84
tests/util/test_expiring_cache.py
Normal file
84
tests/util/test_expiring_cache.py
Normal file
|
|
@ -0,0 +1,84 @@
|
|||
# -*- coding: utf-8 -*-
|
||||
# Copyright 2017 OpenMarket Ltd
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
|
||||
|
||||
from .. import unittest
|
||||
|
||||
from synapse.util.caches.expiringcache import ExpiringCache
|
||||
|
||||
from tests.utils import MockClock
|
||||
|
||||
|
||||
class ExpiringCacheTestCase(unittest.TestCase):
|
||||
|
||||
def test_get_set(self):
|
||||
clock = MockClock()
|
||||
cache = ExpiringCache("test", clock, max_len=1)
|
||||
|
||||
cache["key"] = "value"
|
||||
self.assertEquals(cache.get("key"), "value")
|
||||
self.assertEquals(cache["key"], "value")
|
||||
|
||||
def test_eviction(self):
|
||||
clock = MockClock()
|
||||
cache = ExpiringCache("test", clock, max_len=2)
|
||||
|
||||
cache["key"] = "value"
|
||||
cache["key2"] = "value2"
|
||||
self.assertEquals(cache.get("key"), "value")
|
||||
self.assertEquals(cache.get("key2"), "value2")
|
||||
|
||||
cache["key3"] = "value3"
|
||||
self.assertEquals(cache.get("key"), None)
|
||||
self.assertEquals(cache.get("key2"), "value2")
|
||||
self.assertEquals(cache.get("key3"), "value3")
|
||||
|
||||
def test_iterable_eviction(self):
|
||||
clock = MockClock()
|
||||
cache = ExpiringCache("test", clock, max_len=5, iterable=True)
|
||||
|
||||
cache["key"] = [1]
|
||||
cache["key2"] = [2, 3]
|
||||
cache["key3"] = [4, 5]
|
||||
|
||||
self.assertEquals(cache.get("key"), [1])
|
||||
self.assertEquals(cache.get("key2"), [2, 3])
|
||||
self.assertEquals(cache.get("key3"), [4, 5])
|
||||
|
||||
cache["key4"] = [6, 7]
|
||||
self.assertEquals(cache.get("key"), None)
|
||||
self.assertEquals(cache.get("key2"), None)
|
||||
self.assertEquals(cache.get("key3"), [4, 5])
|
||||
self.assertEquals(cache.get("key4"), [6, 7])
|
||||
|
||||
def test_time_eviction(self):
|
||||
clock = MockClock()
|
||||
cache = ExpiringCache("test", clock, expiry_ms=1000)
|
||||
cache.start()
|
||||
|
||||
cache["key"] = 1
|
||||
clock.advance_time(0.5)
|
||||
cache["key2"] = 2
|
||||
|
||||
self.assertEquals(cache.get("key"), 1)
|
||||
self.assertEquals(cache.get("key2"), 2)
|
||||
|
||||
clock.advance_time(0.9)
|
||||
self.assertEquals(cache.get("key"), None)
|
||||
self.assertEquals(cache.get("key2"), 2)
|
||||
|
||||
clock.advance_time(1)
|
||||
self.assertEquals(cache.get("key"), None)
|
||||
self.assertEquals(cache.get("key2"), None)
|
||||
|
|
@ -93,7 +93,7 @@ class LruCacheCallbacksTestCase(unittest.TestCase):
|
|||
cache.set("key", "value")
|
||||
self.assertFalse(m.called)
|
||||
|
||||
cache.get("key", callback=m)
|
||||
cache.get("key", callbacks=[m])
|
||||
self.assertFalse(m.called)
|
||||
|
||||
cache.get("key", "value")
|
||||
|
|
@ -112,10 +112,10 @@ class LruCacheCallbacksTestCase(unittest.TestCase):
|
|||
cache.set("key", "value")
|
||||
self.assertFalse(m.called)
|
||||
|
||||
cache.get("key", callback=m)
|
||||
cache.get("key", callbacks=[m])
|
||||
self.assertFalse(m.called)
|
||||
|
||||
cache.get("key", callback=m)
|
||||
cache.get("key", callbacks=[m])
|
||||
self.assertFalse(m.called)
|
||||
|
||||
cache.set("key", "value2")
|
||||
|
|
@ -128,7 +128,7 @@ class LruCacheCallbacksTestCase(unittest.TestCase):
|
|||
m = Mock()
|
||||
cache = LruCache(1)
|
||||
|
||||
cache.set("key", "value", m)
|
||||
cache.set("key", "value", callbacks=[m])
|
||||
self.assertFalse(m.called)
|
||||
|
||||
cache.set("key", "value")
|
||||
|
|
@ -144,7 +144,7 @@ class LruCacheCallbacksTestCase(unittest.TestCase):
|
|||
m = Mock()
|
||||
cache = LruCache(1)
|
||||
|
||||
cache.set("key", "value", m)
|
||||
cache.set("key", "value", callbacks=[m])
|
||||
self.assertFalse(m.called)
|
||||
|
||||
cache.pop("key")
|
||||
|
|
@ -163,10 +163,10 @@ class LruCacheCallbacksTestCase(unittest.TestCase):
|
|||
m4 = Mock()
|
||||
cache = LruCache(4, 2, cache_type=TreeCache)
|
||||
|
||||
cache.set(("a", "1"), "value", m1)
|
||||
cache.set(("a", "2"), "value", m2)
|
||||
cache.set(("b", "1"), "value", m3)
|
||||
cache.set(("b", "2"), "value", m4)
|
||||
cache.set(("a", "1"), "value", callbacks=[m1])
|
||||
cache.set(("a", "2"), "value", callbacks=[m2])
|
||||
cache.set(("b", "1"), "value", callbacks=[m3])
|
||||
cache.set(("b", "2"), "value", callbacks=[m4])
|
||||
|
||||
self.assertEquals(m1.call_count, 0)
|
||||
self.assertEquals(m2.call_count, 0)
|
||||
|
|
@ -185,8 +185,8 @@ class LruCacheCallbacksTestCase(unittest.TestCase):
|
|||
m2 = Mock()
|
||||
cache = LruCache(5)
|
||||
|
||||
cache.set("key1", "value", m1)
|
||||
cache.set("key2", "value", m2)
|
||||
cache.set("key1", "value", callbacks=[m1])
|
||||
cache.set("key2", "value", callbacks=[m2])
|
||||
|
||||
self.assertEquals(m1.call_count, 0)
|
||||
self.assertEquals(m2.call_count, 0)
|
||||
|
|
@ -202,14 +202,14 @@ class LruCacheCallbacksTestCase(unittest.TestCase):
|
|||
m3 = Mock(name="m3")
|
||||
cache = LruCache(2)
|
||||
|
||||
cache.set("key1", "value", m1)
|
||||
cache.set("key2", "value", m2)
|
||||
cache.set("key1", "value", callbacks=[m1])
|
||||
cache.set("key2", "value", callbacks=[m2])
|
||||
|
||||
self.assertEquals(m1.call_count, 0)
|
||||
self.assertEquals(m2.call_count, 0)
|
||||
self.assertEquals(m3.call_count, 0)
|
||||
|
||||
cache.set("key3", "value", m3)
|
||||
cache.set("key3", "value", callbacks=[m3])
|
||||
|
||||
self.assertEquals(m1.call_count, 1)
|
||||
self.assertEquals(m2.call_count, 0)
|
||||
|
|
@ -227,8 +227,33 @@ class LruCacheCallbacksTestCase(unittest.TestCase):
|
|||
self.assertEquals(m2.call_count, 0)
|
||||
self.assertEquals(m3.call_count, 0)
|
||||
|
||||
cache.set("key1", "value", m1)
|
||||
cache.set("key1", "value", callbacks=[m1])
|
||||
|
||||
self.assertEquals(m1.call_count, 1)
|
||||
self.assertEquals(m2.call_count, 0)
|
||||
self.assertEquals(m3.call_count, 1)
|
||||
|
||||
|
||||
class LruCacheSizedTestCase(unittest.TestCase):
|
||||
|
||||
def test_evict(self):
|
||||
cache = LruCache(5, size_callback=len)
|
||||
cache["key1"] = [0]
|
||||
cache["key2"] = [1, 2]
|
||||
cache["key3"] = [3]
|
||||
cache["key4"] = [4]
|
||||
|
||||
self.assertEquals(cache["key1"], [0])
|
||||
self.assertEquals(cache["key2"], [1, 2])
|
||||
self.assertEquals(cache["key3"], [3])
|
||||
self.assertEquals(cache["key4"], [4])
|
||||
self.assertEquals(len(cache), 5)
|
||||
|
||||
cache["key5"] = [5, 6]
|
||||
|
||||
self.assertEquals(len(cache), 4)
|
||||
self.assertEquals(cache.get("key1"), None)
|
||||
self.assertEquals(cache.get("key2"), None)
|
||||
self.assertEquals(cache["key3"], [3])
|
||||
self.assertEquals(cache["key4"], [4])
|
||||
self.assertEquals(cache["key5"], [5, 6])
|
||||
|
|
|
|||
Loading…
Reference in a new issue