dump cache performance

[Peter Jeremy]

On 2010-Oct-27 20:17:06 +0200, Dag-Erling Smørgrav <des at des.no> wrote:
>Peter Jeremy <peterjeremy at acm.org> writes:
>> I've mostly convered to ZFS but still have UFS root (which is basically
>> a full base install without /var but including /usr/src - 94k inodes
>> and 1.7GB).  I've run both the 8-stable ("stable") and patched ("jfd") dump 
>> alternately 4 times with 50/250MB cache with the following results:
>>
>> x stable
>> + jfd
>> +------------------------------------------------------------+
>> |                                                           +|
>> |                                                           +|
>> |  x                                                        +|
>> |x xx                                                       +|
>> ||AM                                                        A|
>> +------------------------------------------------------------+
>>     N           Min           Max        Median           Avg        Stddev
>> x   4          9413          9673          9568        9555.5     107.12143
>> +   4         15359         15359         15359         15359             0
>
>9413 what?  Puppies?

Ooops, sorry - KB/sec as reported in the dump summary.

-- 
Peter Jeremy
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 196 bytes
Desc: not available
Url : http://lists.freebsd.org/pipermail/freebsd-hackers/attachments/20101027/30930a4c/attachment.pgp