Re: Why is subversion so slow?

       Am I reading the original report correctly?

       He claims that CVS creates a working copy of 370 files in *3*
       seconds? I know that the client and server are connected over
       a 100baseT LAN, but that's more than 120 files per second! Is
       a normal "copy" even that fast??

I don't know about CVS or the accuracy of the original report, but
unless I mistyped into M-x calc (always a possibility) his 1800kb tree
is around 7x below below the _raw_ bandwidth of the network (if
uncompressed -- 14x if compressed).

He's claiming 1/21 or 1/42 of the raw network bandwidth.

Googling around for file system benchmarks -- I don't see any reason
for skepticism there, either.

Suppose the tree being checked out were packaged as a tar file or
compressed tar file. How fast would you expect it to be to pipe a get
of that into `tar'?

It doesn't sound like that ridiculous a claim looking just at the
network and disk bandwidth. Looking at CVS protocol and
implementation details may or may not yield different results, though
-- I wouldn't know.

-t

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@subversion.tigris.org
For additional commands, e-mail: dev-help@subversion.tigris.org
Received on Wed Apr 9 04:49:05 2003