ZFS is a 128 bit file system. The performance on your 32-bit CPU will 
not be that good. ZFS was designed for a 64-bit CPU. Another GB of RAM 
might help. There are a bunch of post in the archive about 32-bit CPUs 
and performance.

-Sean




Orvar Korvar wrote:
> I am using Solaris Express Community build 67 installed on a 40GB harddrive 
> (UFS filesystem on Solaris), dual boot with Windows XP. I have a zfsraid with 
> 4 samsung drives. It is a [EMAIL PROTECTED] and 1GB RAM.
>
>
>
>
> When I copy a 1.3G file from ZFSpool to ZFSpool the command "time cp file 
> file2" gives this output:
>
> bash-3.00# time cp PAGEFILE.SYS pagefil3
> real    0m49.719s
> user    0m0.004s
> sys     0m10.160s
>
> Which gives like 26MB/sec. 
>
>
>
>
> When I copy that file from ZFS to UFS I get:
> real    0m35.091s
> user    0m0.004s
> sys     0m15.337s
>
> Which gives 37MB/sec.
>
>
> However, in each of the above scenarios, the "system monitor" shows that all 
> RAM is used up and it begins to swap (the swap uses like 40MB). My system has 
> never swapped before (Windows swaps immediately upon startup, ha!). The cpu 
> utilization is like 50%.
>
>
>
>
>
> When I copy that file from UFS to UFS I get:
> real    1m36.315s
> user    0m0.003s
> sys     0m11.327s
> However, the CPU utilization is around 20% and RAM usage never exceeds 600MB 
> - it doesnt use the swap.
>
>
>
>
>
>
> When I copy that file from ZFS to /dev/null I get this output:
> real    0m0.025s
> user    0m0.002s
> sys     0m0.007s
> which can't be correct. Is it wrong of me to use "time cp fil fil2" when 
> measuring disk performance?
>
>
>
>
>
> I mount NTFS with packages FSWfsmisc and FSWfspart, by Moinak Ghosh (and 
> based on Martin Rosenau's work and part of Moinak's BeleniX work)
>  
>  
> This message posted from opensolaris.org
> _______________________________________________
> zfs-discuss mailing list
> zfs-discuss@opensolaris.org
> http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
>
>   

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