AaronFiore/electrum
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storage: speed up write() by using faster compression setting

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Re total runtime of WalletDB.write() and file size on disk,
for a large encrypted wallet, compare:

before (zlib level=6):
file size 16_670 KB
JsonDB.dump 0.5099 sec
zlib.compress 1.3280 sec
ECPubkey.encrypt_message 0.1720 sec

after change (zlib level=1):
file size 17_527 KB
JsonDB.dump 0.5344 sec
zlib.compress 0.5320 sec
ECPubkey.encrypt_message 0.1837 sec
This commit is contained in:
SomberNight
2021-01-06 21:27:10 +01:00
parent 67ae678137
commit d86138a1a5
1 changed files with 1 additions and 1 deletions
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2
electrum/storage.py
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@@ -176,7 +176,7 @@ class WalletStorage(Logger):
s = plaintext s = plaintext
if self.pubkey: if self.pubkey:
s = bytes(s, 'utf8') s = bytes(s, 'utf8')
c = zlib.compress(s) c = zlib.compress(s, level=zlib.Z_BEST_SPEED)
enc_magic = self._get_encryption_magic() enc_magic = self._get_encryption_magic()
public_key = ecc.ECPubkey(bfh(self.pubkey)) public_key = ecc.ECPubkey(bfh(self.pubkey))
s = public_key.encrypt_message(c, enc_magic) s = public_key.encrypt_message(c, enc_magic)