slower than the utility exp expdp!

Hello

I need to compare utilities vs exp expdp and get hours for schemas in my application... I started today with a small diagram which is 1.5 GB. With the help of export utility that it took 3 minutes and 51 seconds to export it. but using expdp it takes 6 minutes and 16 seconds to make the export! Expdp is supposed to be faster, but in my case, I see the export do much better. Can anyone help to look into this.

To export the I used after a command:

log statistics exp_ = $1_$ 3.log exp $1 / $1 file = exp_$ $1_ 3.DMP = none direct owner = y = $1 for regular export
and
Directory of $1 / $1 = dir1 dumpfile = exp_ expdp $1_$ 3.DMP logfile = exp_$ $1_ 3.log = $1 patterns for data pump...

I have passes three arguments and the second argument is schematic size small/big etc which, as well as the schema name is $1 and a number random i.e. $3 are used in the above commands.

Can someone help me determine why the utility expdp is slower for my tests?


Thank you
Cedric

Cedric,

Usually his good idea set PARALLELS the number of CPU options, you have on the server. Because the largest number (number of CPUS) can also advarsely affect performance as well. Don't forget time CPU also dealt with by other procedures and processes more you spawan can serilaize their execution resulting in a decrease in performance. So from 2 or 4 will be a good idea.

Concerning

Tags: Database

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