Why are builds under IDE slower than outside builds?

[Ivan Soleimanipour-4]

When I build my project in the IDE, it takes 1:35.
When I build it from the shell it takes 41 seconds.

These are both clean builds.

According to my perfbar it seems that when building under the IDE I'm utilizing only one cpu
while when building from the shell I'm utilizing both of my machines cpu's.

[deepak marathe]

hi
does your project contain GUI(Forms) built by IDE?

regards
marathe

On 10/18/09, Ivan Soleimanipour <Ivan.Soleimanipour@...> wrote:

> When I build my project in the IDE, it takes 1:35.
> When I build it from the shell it takes 41 seconds.
>
> These are both clean builds.
>
> According to my perfbar it seems that when building under the IDE I'm
> utilizing only one cpu
> while when building from the shell I'm utilizing both of my machines cpu's.
>
>
>

[Ivan Soleimanipour-4]

On 10/18/09 13:09, deepak marathe wrote:
> hi
> does your project contain GUI(Forms) built by IDE?
>

No.
Why would it make a difference? It's all the same ant files being used.

[Jesse Glick]

Ivan Soleimanipour wrote:
> According to my perfbar it seems that when building under the IDE I'm
> utilizing only one cpu
> while when building from the shell I'm utilizing both of my machines cpu's.

Don't know offhand. Could have to do with maximum heap settings etc.

[Ivan Soleimanipour-4]

On 10/20/09 09:30, Jesse Glick wrote:
> Ivan Soleimanipour wrote:
>> According to my perfbar it seems that when building under the IDE I'm
>> utilizing only one cpu
>> while when building from the shell I'm utilizing both of my machines
>> cpu's.
>
> Don't know offhand. Could have to do with maximum heap settings etc.
>

Heap setting of IDE or external builds?
The builds _are_ external right?

Also, is javac parallelized? could that be turned off impeded under the IDE?
I'm asking because I see much more effective 2-cpu utilization when building
outside of the IDE.

[Jesse Glick]

Ivan Soleimanipour wrote:
> Heap setting of IDE or external builds?

Well, of IDE if you are building from the IDE, else of the JVM if you are running a build from the command line.

> is javac parallelized?

No.

[Ivan Soleimanipour-4]

Ahhh, -xMx1G and it goes from ~2 t0 < 1 minutes