ZFS tuning [was: hardware for home use large storage]

[Barry Pederson]

On 2/15/10 7:49 PM, jhell wrote:

> As I make final modifications to the script I will keep the below URLs
> updated and welcome any bug reports or modification requests to me
> personally.
>
> Here is the URLs:
> http://jhell.googlecode.com/files/arc_summary.pl
> http://jhell.googlecode.com/files/arc_summary.pl.asc

Nice.  How about including relevant lines from /boot/loader.conf, maybe 
something like this tacked on the end of the script (excuse my Perl, I'm 
a Python guy).

----
#### Loader Settings #############
open(LOADER, '/boot/loader.conf');
print "\n/boot/loader.conf settings:\n";
while (<LOADER>){
     chomp;
     if (/^\s*(zfs|vfs\.zfs|vm\.kmem)/){
         print "\t$_\n";
     }
}
----

Yes, it should more or less duplicate the sysctl values, but it may make 
it more obvious where the settings are coming from, or if the user has 
bad or ignored settings

	Barry