Re: Restore data transfer rate

[Colin Percival <cperciva@tarsnap.com>]

On 01/13/11 10:03, George MacKerron wrote:
> What sort of transfer rates are people getting when reading/restoring tarsnap archives? 
> 
> I'm on a very fast university connection, but invariably only see speeds of between 50 and 80 kB/s. I'm wondering if this is normal.

Judging by your email address, I presume you're in the UK... the speeds you're
seeing are a bit slower than typical but not dramatically so.  If you extract
archives (or different parts of the same archive, for that matter) in parallel
you should be able to get more bits through.

(The technical details: Tarsnap extracts are currently latency-limited since
Tarsnap needs to read each block before it can figure out which block needs to
be fetched next.  I'm hoping to have this fixed in the next version of the
Tarsnap client code.)

-- 
Colin Percival
Security Officer, FreeBSD | freebsd.org | The power to serve
Founder / author, Tarsnap | tarsnap.com | Online backups for the truly paranoid