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List:       suse-linux-e
Subject:    RE: [SLE] OO: If you can make it, I can break it!
From:       "Carlos E. R." <robin1.listas () tiscali ! es>
Date:       2005-12-31 0:44:38
Message-ID: Pine.LNX.4.61.0512310139150.10626 () nimrodel ! valinor
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The Thursday 2005-12-29 at 19:30 -0900, Greg Wallace wrote:

> Right.  Assuming it works like 'doze, the first load causes a memory to
> memory copy to create a cached version.  This should happen very quickly.
> The majority of the time spent on the initial load is getting the binary(s)
> off of the disk, which would happen even if there were no caching done.

Correct; but not only binaries, but everything.

By the way, I forgot to mention a thing that slows a bit disk access in 
Linux: the filesystem stores in disk the timestamp when any file is read, 
ie, a write operation for every an each read. The operation is cached, of 
course, but it does slow things.

You can disable this with the option "noatime" in fstab. I have all my 
partitions that way for over a year or two and I haven't seen side effects 
yet.


- -- 
Cheers,
       Carlos Robinson
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