Octavian Rasnita wrote at Fri, 31 May 2002 11:01:38 +0200:
> Hi all,
>
> I want to upload a binary file. I know how and the upload works fine. However, I
>don't know how
> many bytes is ok to read at a time.
>
> I've seen in most examples that 1024 bytes number is used like:
>
> while ($bytesread=read($filename,$buffer,1024)) {
>
> However, I found that when I try to upload a file from localhost to my computer, for
>testing only,
> the file uploads very slow if I use 1024. If I use a bigger value like 10240 or
>102400 instead,
> the upload goes faster.
>
> Why is it important to use only 1024, and what happends if I use a bigger value? The
>file won't
> upload if the connection is too slow?
>
I think the 1024 is not very important.
But most people don't upload files with some MB size.
So it would be waste of space and time always to create a huge buffer.
Generally 1024, 2048, 4096 is a good compromiss.
(The size is most oriented on the block size of the hard disk).
When 102400 works good for you, then it's the perfect value.
Best Wishes,
Janek
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