Re: [PATCH] various fix for usb sniffing

["Abeni Paolo" <paolo.abeni () telecomitalia it>]

on  Sun 1/14/2007 9:13 PM Guy Harris wrote:
> Is there a significant performance improvement from memory-mapped 
> access?  

I don't have performed any significant performance intensive test. The memory mapped save to the capture code a copy of 
the full data (header included). Moreover it allow to receive multiple packet with only one system call, while the 
'normal' path use a system call for each packet. The issue is I don't have any usb device suitable to stress the 
receive code. 

> 1) the host reading a capture file can determine the byte order of the 
> host on which the capture was done,

I did not know this. Can you plase explain me how ? (So, if this is the way, I can update the wireshark dissector 
accordingly).

Thanks for the feedback,

Paolo
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