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From: Alexey Tarasov <me@lexasoft.ru>
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Date: Tue, 12 Feb 2008 14:58:51 +0300
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Subject: Re: Disappointing speed with ZFS
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It is simple:


   pool: storage
  state: ONLINE
  scrub: none requested
config:

         NAME        STATE     READ WRITE CKSUM
         storage     ONLINE       0     0     0
           ad6       ONLINE       0     0     0

errors: No known data errors

On 12.02.2008, at 14:32, Ivan Voras wrote:

> Alexey Tarasov wrote:
>>      tty             ad4              ad5              =20
>> ad6             cpu
>> tin tout  KB/t tps  MB/s   KB/t tps  MB/s   KB/t tps  MB/s  us ni =20
>> sy in id
>>   0  347  7.36   1  0.01  57.35  43  2.42  42.84  44  1.84   1  0  =20=

>> 1  0 98
>>   0  606  0.00   0  0.00  58.62  31  1.76  63.02 246 15.14   0  0  =20=

>> 3  0 97
>>   2 5334  0.00   0  0.00  57.14   7  0.37  64.00 355 22.20   0  0  =20=

>> 2  0 97
>>   2 3194  0.00   0  0.00   0.00   0  0.00  63.35 295 18.26   0  0  =20=

>> 2  1 97
>>   0  148  0.00   0  0.00   0.00   0  0.00  63.90 336 20.97   0  0  =20=

>> 0  1 99
>>   0  453  0.00   0  0.00  55.87  87  4.72  64.00 290 18.14   1  0  =20=

>> 3  0 96
>
> Sorry, can't help you. I was expecting to see a lot of small
> transactions, indicating seeking across the file system, but the =20
> numbers
> seem normal enough.
>
> Is the drive & ZFS topology "normal" - you don't perhaps have a zpool
> made of multiple partitions/slices on the same drive? Can you send the
> output of "zpool status"?
>

--
Alexey Tarasov

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