Forum: NGINX Windows Client downloads something from nginx for Windows is too slow

Hi, all.

I am a newbie. I am using nginx for Windows to host static big files. I
find out a strange problem. When Windows client downloads files from 
nginx
for Windows server, the download rate is very very slow. The files are
bigger than 200MB.

Network: 100Mbps LAN

Server SIde: Windows XP 32bit, nginx for Windows, I test 1.0.15, 1.2.4 
and
1.3.7. They are the same.

Windows Client Side: WIndows XP 32bit, Firefox, IE, Chrome and curl are 
the
same. The download rate is not more than 300KB/s

Linux Client Side: Linux, Fedora 17 x86_64 and Ubuntu, Firefox and 
Chrome
and curl are the same. The download rate are more than 8MB/s. Almost
10MB/s.

The same network 100Mbps LAN

Server Side: Fedora 17 x86_64, nginx 1.0.15

Windows Client Side: WIndows XP 32bit, Firefox, IE, Chrome and curl are 
the
same. The download rate is more than 8MB/s. Almost 10MB/s

Linux Client Side: Linux, Fedora 17 x86_64 and Ubuntu, Firefox and 
Chrome
and curl are the same. The download rate are more than 8MB/s. Almost
10MB/s.

It looks quite strange. I just use the default configure file for nginx 
and
put the files into nginx root directory. I do not change anything. I
checked HTTP Header. I try to change Firefox user-agent on Windows to 
Linux
edition. It could not change download rate, still very very slow.  I try 
to
use Apache on Windows to host the files. The download rate is normal, 
about
8~10MB/s.

How could I debug the problem? Which logs and configure files should I
provide? If you have some good advices, Please tell me soon.

Thank you

Liang Suilong

Sent From My Heart
My Page: http:// <http://www.liangsuilong.info>www.liangsuilong.info

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? 2012?10?29? 17:24, Liang Suilong ??:
> 1.2.4 and 1.3.7. They are the same.
> Server Side: Fedora 17 x86_64, nginx 1.0.15
> anything. I checked HTTP Header. I try to change Firefox user-agent
> Liang Suilong
>
> Sent From My Heart My Page: http://
> <http://www.liangsuilong.info>www.liangsuilong.info
> <http://www.liangsuilong.info>
>
>
>
> _______________________________________________ nginx mailing list
> nginx@nginx.org http://mailman.nginx.org/mailman/listinfo/nginx
>

sounds impossible,is it caused by client configuration?

- --
Best regards,
Sharl.Jimh.Tsin (From China *Obviously Taiwan INCLUDED*)

Using Gmail? Please read this important notice:
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On Mon, Oct 29, 2012 at 5:36 PM, Sharl Jimh Tsin 
<amoiz.shine@gmail.com>wrote:

> >
> > 8MB/s. Almost 10MB/s.
> > 8MB/s. Almost 10MB/s.
> > soon.
> >
> > _______________________________________________ nginx mailing list
> > nginx@nginx.org http://mailman.nginx.org/mailman/listinfo/nginx
> >
>
> sounds impossible,is it caused by client configuration?
>
>
Thank you, Sharl

I think the problem should be impossible, however it is exactly existed. 
I
test nginx for Windows on Windows Server 2008, and the client side is
Windows 7. In the same 100Mbps LAN network environment, the download 
rate
seems to have a little improvement, about 400KB/s. It is still very 
slow.

I tried to reinstall new Windows. There is no change on nginx for 
Windows.

- --

I guess the problem come from buffers.
For big files, using asynchronous serving is recommended.

Take a look at:
http://nginx.org/en/docs/http/ngx_http_core_module.html#aio
http://wiki.nginx.org/HttpCoreModule#aio
---
*B. R.*

have you tried looking at the network layer using tcpdump/wireshark to 
see the connection properties? such as mtu, fragment packets, window 
size

-Payam

Sent from my iPhone

Thank you, B.R.

I add output_buffers 1 128k option into nginx.conf. It has a great
improvement. The download rate raise from 400KB/s to 4~5MB/s.

I think the problem may affect all version nginx on Windows. Should it 
add
output_buffer option into nginx.conf by default?

Sent From My Heart
My Page: http://www.liangsuilong.info

You needed specific configuration for your specific usage with specific
requirements.
Why should that become the default?

Keep it light and clean for the most common usage: serving lightweight
files, as every standard web page should be.
---
*B. R.*