Slow file upload on OS X server

Jamey Cribbs jamey.cribbs at
Sun Dec 23 00:39:26 MSK 2007

Well, I turned off sendfile in config.  I also changed a bunch of parameters
per an email I received from Dave Cheney (thanks Dave!).  No luck.

Just for laughs, I installed and configured Swiftiply with Mongrel and
turned off Nginx.  Same issue.

So, then I turned off Swiftiply also and started just one mongrel and told
it to listen on port 80.  It worked great.  File uploads were much faster.

So, if I am having the same issue when proxying from either Swiftiply or
Nginx, but I don't have the slowness issue when I don't proxy and just go
straight to the mongrel instance, this tells me the problem is not with
Nginx, but must be some setting on the OS X server.

Does anyone know what would cause proxying in general to be slow on an OS X
server?  I know its not the network speed from the browser to the server,
because when I was connecting directly to the mongrel instance without
proxying, file uploads were fine.

Sorry for asking this (probably) non-nginx related question on the list, but
I started it here, so I figured I would ask one more question.


Jamey Cribbs

On Dec 22, 2007 2:08 PM, Alex Egg <eggie5 at> wrote:

> no sendfile on os x
> On Dec 22, 2007 7:57 AM, Wayne E. Seguin <wayneeseguin at> wrote:
> >
> > On Dec 21, 2007 10:28 AM, Jamey Cribbs <jamey.cribbs at> wrote:
> >
> > > I have a rails app running on an OS X server, using nginx as the web
> > server, proxying to a mongrel cluster.  File uploads from the user's
> browser
> > are painfully slow when going through nginx, but if I target an
> individual
> > mongrel instance in the browser, the file upload is fast.  I have the
> latest
> > mac ports version of nginx installed ( 0.54, I believe).
> > >
> > > Any ideas?  I tried changing the log format, as suggested in a reply
> to
> > someone else's post, but could not get nginx to start, so I don't know
> if
> > nginx has to be compiled with a particular flag in order to include the
> log
> > format config directive in nginx.conf.
> > >
> > > Any help, suggestions would be greatly appreciated.
> > >
> > > Jamey Cribbs
> > >
> >
> >
> > Try turning sendfile off in the config.
> >
> >   ~Wayne
> >
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