Re: File system performance, hardware performance, ext3, 3ware RAID1, etc.

[Willy Tarreau]

On Fri, Feb 13, 2004 at 11:55:16AM -0800, Linus Torvalds wrote:
 
> > the absolute worst-case write performance should be the same as read
> > performance.
> 
> That is only true if the disk block-size is smaller than the IO blocksize. 
> Can somebody fill me in on what modern disks do, especially the 
> high-density ones?

This is purely hypothetical, but perhaps write-precompensation or the signal
intensity or shape in the head implies to write at "safer" frequencies ? we're
speaking about hundreds of megahertz, and I've always wondered what the signal
looks like when it reaches the head.

Cheers,
Willy

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