Matrix-Mirrors/anonymousland-synapse
1
0
Fork 0
mirror of https://git.anonymousland.org/anonymousland/synapse.git synced 2024-12-25 22:49:26 -05:00
Code Issues Packages Projects Releases Wiki Activity

Skip the final GC on shutdown to improve restart times (#10712)

Browse Source 
Use `gc.freeze()` on exit to exclude all existing objects from the final GC.
In testing, this sped up shutdown by up to a few seconds.

`gc.freeze()` runs in constant time, so there is little chance of performance
regression.

Signed-off-by: Sean Quah <seanq@element.io>
This commit is contained in:
Sean 2021-09-01 11:55:31 +01:00 committed by GitHub
parent e2481dbe93
commit f8bf83b811
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 8 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
changelog.d/10712.feature Normal file
View File

@ -0,0 +1 @@
Skip final GC at shutdown to improve restart performance.

7
synapse/app/_base.py
View File

@ -12,6 +12,7 @@
# 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.
import atexit
import gc
import logging
import os
@ -403,6 +404,12 @@ async def start(hs: "HomeServer"):
gc.collect()
gc.freeze()
# Speed up shutdowns by freezing all allocated objects. This moves everything
# into the permanent generation and excludes them from the final GC.
# Unfortunately only works on Python 3.7
if platform.python_implementation() == "CPython" and sys.version_info >= (3, 7):
atexit.register(gc.freeze)
def setup_sentry(hs):
"""Enable sentry integration, if enabled in configuration