What bottlenecks blockchain sync?

Technology zcashd client
1

I’ve got the latest version from GitHub releases into a docker container (Dockerfile). It is syncing very slow but uses very little resources:

CPU: 137.61% / 2400%
RAM: 1.691GiB / 31.38GiB
I/O WAIT: 6% 
NET RECV: 1324 KB/sec

Currently it sits on 39% after more than a day syncing. I’m trying to understand what the bottleneck is, the machine it sits on has lots of spare resources. It it single threaded or something?

2

You can give it more threads & increase cache size etc, ‘zcashd --help’ will show you all the options.

1 Like