Re: tftp vs http for downloading big files

On Fri, Jun 3, 2011 at 4:46 PM, H. Peter Anvin <[email protected]> wrote:
> On 03/16/2011 01:54 PM, hai wu wrote:
>> Just for downloading files like vmlinuz/initrd.img, wouldn't it be
>> better to use tftp instead of using http when the image files would be
>> very large?
>
> No, quite the opposite.
>
> tftp is very slow for anything but very small files (it is actually
> quite efficient for files that only a few kilobytes or less.)
>
> =A0 =A0 =A0 =A0-hpa

We run a large shop of thin clients that pull a 30meg ramdisk image at
boot time, and for us the switch from tftp to http meant:

* Faster download
* Easier troubleshooting
* Accurate download timing data from http server logfiles
* More efficient resource usage at high volumes of transfers (50x
concurrent transfers with tftp killed the server, whereas 100x
concurrent transfers were handled with ease with apache)

--
Matt

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