Re: Module vs Kernel main performacne

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Subject: Re: Module vs Kernel main performacne
From: Abu Rasheda <rcpilot2010@xxxxxxxxx>
Date: Fri, 1 Jun 2012 11:52:47 -0700
Cc: Chetan Nanda <chetannanda@xxxxxxxxx>, Mulyadi Santosa <mulyadi.santosa@xxxxxxxxx>
In-reply-to: <CAPrYoTFBrEqkNSG=NwarAqpAitY5HuR=Q0__YUV-O_n8HDEOow@mail.gmail.com>

If the buffer at user side is more then a page, then it may be that complete user space buffer is not available in memory and kernel spend time in processing page fault

I have attached code for module and user program. If anyone is bored over the weekend they are welcome to try and explain the behavior.

Abu Rasheda

Attachment: m.tgz
Description: GNU Zip compressed data

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