Re: Using ArrayBuffer as payload for binary data to/from Web Workers from Boris Zbarsky on 2011-03-09 (public-webapps@w3.org from January to March 2011)

From: Boris Zbarsky <bzbarsky@MIT.EDU>
Date: Wed, 09 Mar 2011 15:40:59 -0500
To: Glenn Maynard <glenn@zewt.org>
CC: Chris Marrin <cmarrin@apple.com>, Web Applications Working Group WG <public-webapps@w3.org>
Message-ID: <4D77E5DB.8000004@mit.edu>

On 3/9/11 1:54 PM, Glenn Maynard wrote:
> Any system with memory protection can interrupt on write, which makes
> copy-on-write very close to free, as long as you can page-align the buffer.

That's a pretty serious caveat, though.  And you're assuming that memory 
meta-operations like "set up a custom write interrupt handler for this 
page" are free, which is not exactly the case as I understand it.

-Boris

Received on Wednesday, 9 March 2011 20:42:04 UTC