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-rw-r--r--synapse/state.py8
1 files changed, 4 insertions, 4 deletions
diff --git a/synapse/state.py b/synapse/state.py
index 033f55d967..0f2bedb694 100644
--- a/synapse/state.py
+++ b/synapse/state.py
@@ -28,8 +28,8 @@ from synapse import event_auth
 from synapse.api.constants import EventTypes
 from synapse.api.errors import AuthError
 from synapse.events.snapshot import EventContext
-from synapse.util.async import Linearizer
-from synapse.util.caches import CACHE_SIZE_FACTOR
+from synapse.util.async_helpers import Linearizer
+from synapse.util.caches import get_cache_factor_for
 from synapse.util.caches.expiringcache import ExpiringCache
 from synapse.util.logutils import log_function
 from synapse.util.metrics import Measure
@@ -40,7 +40,7 @@ logger = logging.getLogger(__name__)
 KeyStateTuple = namedtuple("KeyStateTuple", ("context", "type", "state_key"))
 
 
-SIZE_OF_CACHE = int(100000 * CACHE_SIZE_FACTOR)
+SIZE_OF_CACHE = 100000 * get_cache_factor_for("state_cache")
 EVICTION_TIMEOUT_SECONDS = 60 * 60
 
 
@@ -577,7 +577,7 @@ def _make_state_cache_entry(
 
 def _ordered_events(events):
     def key_func(e):
-        return -int(e.depth), hashlib.sha1(e.event_id.encode()).hexdigest()
+        return -int(e.depth), hashlib.sha1(e.event_id.encode('ascii')).hexdigest()
 
     return sorted(events, key=key_func)