diff options
| author | Daniel Thompson <daniel@redfelineninja.org.uk> | 2021-07-28 21:01:04 (GMT) |
|---|---|---|
| committer | Daniel Thompson <daniel@redfelineninja.org.uk> | 2021-07-28 21:01:04 (GMT) |
| commit | 28588269215aebf36c89cbb4c1b8014929340ac4 (patch) | |
| tree | bbfcece49226a6120e07f3b8bc1f48954c0cec88 /wasp/apps/software.py | |
| parent | bbadbd34c74ef2ef4da0ccda7d5250987374bcbb (diff) | |
apps: Replace del self.x with self.x = None in all apps
Testing has demonstrated that del self.x does not make the memory used to
store x available for garbage collection.
There is clearly an additional reference from another place. In fact
*after* del self.x then the memory can be made available for GC by
assignment (e.g. self.x = None). However I haven't found how to release
this reference and there is nothing in self.__dict__ that can help.
For now we'll use a twp-step process where we set the variable to None
before deleting it.
This has a big impact on memory usage. For Software it is almost 1k
(a.k.a. about 10% impact on free RAM).
Signed-off-by: Daniel Thompson <daniel@redfelineninja.org.uk>
Diffstat (limited to 'wasp/apps/software.py')
| -rw-r--r-- | wasp/apps/software.py | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/wasp/apps/software.py b/wasp/apps/software.py index 9e764bc..91bde38 100644 --- a/wasp/apps/software.py +++ b/wasp/apps/software.py @@ -67,8 +67,11 @@ class SoftwareApp(): wasp.EventMask.SWIPE_UPDOWN) def background(self): + self.si = None del self.si + self.page = None del self.page + self.db = None del self.db def get_page(self): |