Re: Reboot? Slow First Run
Re: Reboot? Slow First Run
- Subject: Re: Reboot? Slow First Run
- From: Jerry Krinock <email@hidden>
- Date: Thu, 3 Dec 2009 06:32:35 -0800
On 2009 Dec 03, at 04:45, gMail.com wrote:
> I add some important info:
> I have now duplicated the folder containing the 10,000 files and even if I
> don't reboot, the first scan over this new folder takes 13 seconds too. So,
> I guess the OS caches some info about the files I have already read. Is
> anyone who can explain that better? Can I avoid this long time?
Not me, but yes it is caching of some kind. I've seen this behavior in other apps, though not to the 10x degree that you are seeing, and have always assumed that this is one of the tricks Apple is using to compensate for the fact that processor speeds are not increasing as fast as they were 10 years ago. Traversing the filesystem obviously involves much disk access and is therefore slow, so it is reasonable that your app would be more affected than others. I'd say it's normal, expected behavior and there's not much you can do about it.
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