On Mon, Apr 15, 2013 at 1:53 PM, Pietro Paolini <pulsarpietro@xxxxxxx> wrote:
Thanks for the smart question, I know the answer for some of them but I realised I have to
On Apr 15, 2013, at 6:26 PM, Valdis.Kletnieks@xxxxxx wrote:
> On Mon, 15 Apr 2013 16:24:17 +0200, Pietro Paolini said:
>> I have to compare different filesystems options for an embedded platform
>
> Step 0: Get an accurate list of what requirements the embedded platform
> has. Is the storage flash based? Spinning oxide? What are the relative
> read/write ratios (some systems will have almost no writes, but a Tivo
> will have almost as many writes as reads (possibly more, even). What
> sustained rates of file I/O and metadata activity will you expect?
> Do you have a fairly high CPU budget and can afford more cycles, or are
> you using a slower ARM and have to do it with as few cycles as possible?
> How big will the filesystem be? How many meg/gig of data, and how many
> files? Small numbers of honking-huge files, or zillions of 139 byte files?
> Does the filesystem have to support TRIM or whiteouts? Plus any application
> specific issues I may have overlooked...
>
> Step 1: for i in $filesystems; do compare_specs($needed_specs, $i); done.
>
> You get the idea.
do further investigation on regarding my system needs.
Regarding the Step 1 : where do you usually find specs ? There is somethings like RFC for filesystem ?
This is a pretty exhaustive list, but good as a starting point.
http://en.wikipedia.org/wiki/Comparison_of_file_systems#Features
http://en.wikipedia.org/wiki/Comparison_of_file_systems#Features
needed_specs=$() ? :-)
Thanks
Pietro.
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Thanks -
Manish
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