Thanks. I supposed that I was loading from the cache. It's a pity. It was too nice to load 10,000 files x 4KB each, in only 1.2 secs. Maybe one day, when I will be not longer on this planet :-) Just to mention I run MacOSX 10.6.2 and I build against 10.5 (32 bit).
Anyway I would like to say a thing that I wanted to say for years. Despite to the faster and faster processors and machines, the better and better OSs... still today with a Core 2 Duo Intel 2.4GHz and MacOS X 10.6.2 at 64 bits (which is considered mainly as an improvement of the stability and speed), when I open my /Applications folder, I have to wait for 3, 4 or 5 seconds to see the contents of the folder. I recall that my Mac II with the System Mac 1.0 (in 1988) was faster. Think over ;-) Regards -- Leonardo > Da: Shawn Erickson <[email protected]> > Data: Thu, 3 Dec 2009 07:38:11 -0800 > A: "gMail.com" <[email protected]> > Cc: <[email protected]> > Oggetto: Re: Reboot? Slow First Run > > On Thu, Dec 3, 2009 at 3:47 AM, gMail.com <[email protected]> wrote: >> Hi, >> my app executes a given task in 1.2 seconds, all the time. I can quit the >> application, relaunch it, run the same task several times and it always >> takes 1.2 seconds. >> But if I reboot the machine, I launch the application and run the same task >> for the first time, it takes 13 seconds! This problem occurs at any reboot. >> Then if I run the task again it always takes 1.2 seconds. > > The OS maintains a cache of data in RAM as much as it can while > running. This "universal buffer cache" caches pages of data from > loaded files, applications, etc. > > So the long initial load time is likely a result of having to load the > data you need from disk (and possibly bringing online services your > application needs that haven't yet been needed by other applications). > The later load times are loading data from cache hence much much > faster. > > -Shawn _______________________________________________ Cocoa-dev mailing list ([email protected]) 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]
