[Proftpd-user] mod_sftp vs sshd performance

Hi,

I’m running proftpd version 1.3.6. When comparing the sftp transfer speed between sshd and proftpd, I recently noticed that proftpd sftp transfers are half as fast. My test is:

858M file
same machine
scp as the transfer client
via sshd is 9.2 seconds
via mod_sftp: 24 seconds

I’ve tried turning off compression and adjusting socket options but with practically no difference. My sftp config is basically this:

<VirtualHost ...>
...
SFTPENgine on
SFTPCompression delayed
...
</VirtualHost>

Should the transfer speeds be comparable? Both sshd and proftpd are on the same machine.

Thanks for any ideas,
  Sergei

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