3vincent

Seafile + Docker + Caddy Reverse Proxy on a debian/ubuntu VPS

Seafile is a great alternative to Dropbox, Google Drive or Nextcloud for sharing files either with your own devices or 3rd parties.

Prerequisites:

Your VPS should already have the minimal configuration including

• ssh with PubPriv Keys

xgugeng

seafile.example.com {
  log {
    output file /var/log/caddy/seafile.log
  }

  # Optional for Cloudflare
  tls {
    dns cloudflare {env.CF_API_TOKEN}
  }

saurabhnanda

ZFS 2-3x slower than EXT4

• With the default settings that ship with Postgres, ZFS underperforms EXT4 by a factor of 2-3x.
  • Most notable setting is shared_buffers=128MB
• When benchmarks are running on ZFS, severe write amplification is reported by iotop and txg_sync is performing a lot of IO. Example:
• The DB used for benchmarking is ~30GB. The system has a total of 64GB RAM with the ARC being given a maximum of ~32GB. Irrespective of the small value of shared_buffers, almost the entire DB should be cached in the ARC and the ZFS benchmark should not suffer so greatly.

Table of contents

• Benchmark results for Postgres on ZFS vs EXT4