Question regarding Eclipse plugin slowdowns

On Sun, Apr 11, 2010 at 11:33 PM, Ruediger Keller wrote:
> I am currently working with a project setup, where I have three
> dependent projects. I will call them A, B and C. B depends on A and C
> depends on A and B.
>
> For example, whenever I change something in project A, eclipse becomes
> unresponsive, "building workspace" for about 10 seconds. It seems, as
> if eclipse is always building projects B and C completely, when I
> change something in A. Even if 99% of the classes in B and C are not
> depending on the class being changed in A.
>
> Is this just my imagination, or is it actually building the projects
> completely? If yes, is it a bug, or intentional? It is quite annoying
> being unable to work for 10 seconds whenever you save your changes.

Unfortunately this is the expected behaviour currently ... the builder
is unable to build incrementally across project boundaries at the
moment.

Cheers,

Miles

I see. Thanks for your quick reply! I will try to improve my setup in
this regard.

Regards,
Ruediger

2010/4/12 Miles Sabin :
> On Sun, Apr 11, 2010 at 11:33 PM, Ruediger Keller wrote:
>> I am currently working with a project setup, where I have three
>> dependent projects. I will call them A, B and C. B depends on A and C
>> depends on A and B.
>>
>> For example, whenever I change something in project A, eclipse becomes
>> unresponsive, "building workspace" for about 10 seconds. It seems, as
>> if eclipse is always building projects B and C completely, when I
>> change something in A. Even if 99% of the classes in B and C are not
>> depending on the class being changed in A.
>>
>> Is this just my imagination, or is it actually building the projects
>> completely? If yes, is it a bug, or intentional? It is quite annoying
>> being unable to work for 10 seconds whenever you save your changes.
>
> Unfortunately this is the expected behaviour currently ... the builder
> is unable to build incrementally across project boundaries at the
> moment.
>
> Cheers,
>
>
> Miles
>
> --
> Miles Sabin
> tel: +44 (0)7813 944 528
> skype:  milessabin
> http://www.chuusai.com/
> http://twitter.com/milessabin
>

Miles, I have one more question. Is the build happening in a separate
thread in Eclipse? I'm asking because Eclipse is getting very
unresponsive during builds, to the point of being unable to edit text,
even on my Core2 Duo.

Regards,
Ruediger

2010/4/12 Miles Sabin :
> On Sun, Apr 11, 2010 at 11:33 PM, Ruediger Keller wrote:
>> I am currently working with a project setup, where I have three
>> dependent projects. I will call them A, B and C. B depends on A and C
>> depends on A and B.
>>
>> For example, whenever I change something in project A, eclipse becomes
>> unresponsive, "building workspace" for about 10 seconds. It seems, as
>> if eclipse is always building projects B and C completely, when I
>> change something in A. Even if 99% of the classes in B and C are not
>> depending on the class being changed in A.
>>
>> Is this just my imagination, or is it actually building the projects
>> completely? If yes, is it a bug, or intentional? It is quite annoying
>> being unable to work for 10 seconds whenever you save your changes.
>
> Unfortunately this is the expected behaviour currently ... the builder
> is unable to build incrementally across project boundaries at the
> moment.
>
> Cheers,
>
>
> Miles
>
> --
> Miles Sabin
> tel: +44 (0)7813 944 528
> skype:  milessabin
> http://www.chuusai.com/
> http://twitter.com/milessabin
>

On Mon, Apr 12, 2010 at 7:34 PM, Ruediger Keller wrote:
> Miles, I have one more question. Is the build happening in a separate
> thread in Eclipse? I'm asking because Eclipse is getting very
> unresponsive during builds, to the point of being unable to edit text,
> even on my Core2 Duo.

The presentation compiler will re-typecheck the source file that
you're working on as you type, though that will kick in after a brief
period of inactivity, so it shouldn't normally be noticeable.
Otherwise incremental building happens on save. Additionally there
will be indexing going on in a background thread, but after initial
index building I wouldn't expect that to be problematic.

What JVM heap configuration do you have? Have you followed the guidelines here,

http://www.scala-lang.org/node/94

Cheers,

Miles

Thanks for your reply. I didn't have the suggested heap configuration
for eclipse. I will change my configuration and try if it makes a
difference.

Regards,
Ruediger

2010/4/12 Miles Sabin :
> On Mon, Apr 12, 2010 at 7:34 PM, Ruediger Keller wrote:
>> Miles, I have one more question. Is the build happening in a separate
>> thread in Eclipse? I'm asking because Eclipse is getting very
>> unresponsive during builds, to the point of being unable to edit text,
>> even on my Core2 Duo.
>
> The presentation compiler will re-typecheck the source file that
> you're working on as you type, though that will kick in after a brief
> period of inactivity, so it shouldn't normally be noticeable.
> Otherwise incremental building happens on save. Additionally there
> will be indexing going on in a background thread, but after initial
> index building I wouldn't expect that to be problematic.
>
> What JVM heap configuration do you have? Have you followed the guidelines here,
>
>  http://www.scala-lang.org/node/94
>
> Cheers,
>
>
> Miles
>
> --
> Miles Sabin
> tel: +44 (0)7813 944 528
> skype:  milessabin
> http://www.chuusai.com/
> http://twitter.com/milessabin
>