I have feeling that it's a browser issue. Can somebody who knows browser upload
mechanism confirm that?
Dmitry R., [EMAIL PROTECTED]
Chief Architect, MetricStream.COM
Santa Clara, CA
-----Original Message-----
From: Tal Dayan [EMAIL PROTECTED]
Sent: Wed, 21 Feb 2001 19:05:06 -0800
To: [EMAIL PROTECTED]
Subject: RE: Slow upload speeds
We have the same low performance problem with Jason's library. The strange
things is that when the browser and server are on the same machine (using
127.0.0.1) the CPU usage is still low while transferring large files. Our
experience with other client/server applications is that the CPU usage in
such cases gets to 100% (since there is no real I/O to the NIC, all is
handled by the CPU).
I am not sure where the 'idle' time is spent.
Tal
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, January 04, 2001 3:13 PM
> To: [EMAIL PROTECTED]
> Subject: Slow upload speeds
>
>
> Hi everyone.
>
> I am using Tomcat-3.2.1 on W2K, Solaris with or without apache. Since I
> need to provide users with functionality to upload fairly big files (> 10
> MB), speed is essential.
>
> My uploader is based on Jason Hunter code. Maximum upload speed I could
> achieve is between 40 and 60 Kbytes/s (even when client and server are on
> the same machine). Bottleneck (quiet predictable) seems to be in
> ServletInputStream misc. "read()" methods. Speed does not seem to be
> dependant on a platform or web server.
>
> Anyone was able to achieve better speeds (at least around 100 kBytes/s)?
> Any ideas ?
>
> Thanks
>
> Andrus
>
>
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