On Aug 1, 2008, at 4:33 PM, JongAm Park wrote:
Hello..
Ahnyong haseo,
I have some codes which were written in Carbon and we want to make
its performance faster.
I found out that most of the time is spent by a series of
FSWriteFork() function. So, I would like to use any method which is
faster than that.
fwrite is one option but I also looked up a Cocoa method, writeData
message of the NSFileHandle.
Does anyone know if the writeData's performance compared to the
FSWriteFork()?
You could try it, but I don't see how it would make a difference,
since these close-to-direct I/O functions tend to be limited to the
speed of the output device rather than the CPU, unless they take
advantage of a certain feature of the file system in use (see
FSGetCatalogInfo()). Instead, you should probably re-evaluate how much
& how often the software is writing to the disk, or switch to
asynchronous I/O.
Nick Zitzmann
<http://www.chronosnet.com/>
_______________________________________________
Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com
This email sent to [EMAIL PROTECTED]
