for me it seems it sync slower than new blocks are found..
I am using newest geth (1.5.3)
maybe there is something what I could make to improve my sync speed?
Any special parameter or so?
Or how to switch to parity without losing already synced block?
Had a similar problem myself running Geth by itself - as opposed to using Parity on the back-end of the Mist wallet, normally the default package has Geth on the back-end of the Mist wallet.
After you download the basic or fast blockchain and Mist reverts to updating full size of new blocks - it runs very slow on new blocks.
You can increase the memory cache for the wallet too --cache 1024 (7 times bigger than default memory allocation), I haven't tried this with Geth on Linux yet, but it gives a 50% speed boost on Parity as long as your PC has enough ram installed in it.
In a terminal, I run Parity with this command:
parity --geth --cache 1024With Parity, a scratch new or reinstall of the fast blockchain takes much longer, like 10 hours as opposed to Geth's 1 hour download for the basic blockchain.
But, afterwards the sync of new blocks at the normal block size is still as prompt as Geth was about 2-3 months ago
So, one day of new blocks can be updated in a couple of minutes - when you start getting new blocks info for live blocks found coming up on Parity you get more details on those blocks like "Import" descriptions on live blocks or number of transaction included in live blocks found!
That, is when I start the Mist wallet on Linux.
