Re: [jamboost] Performance degradation vs number of files

From: Vladimir Prus (ghost_at_[hidden])
Date: 2003-10-15 09:06:44

Pedro Ferreira wrote:

> You're welcome. If you find something I can work on right now to help you
> optimizing jam, please let me know.

Thanks,
as long I have a clean picture I'll let you (and the list) know.he list no

> I can spend some time on it because we'd really like to be able to use jam
> on the regular development cycle and stop using Visual Studio projects
> altogether. Currently, we're only using jam to create releases because it's
> impossible to wait this long every time one wants to compile.

Could you give a bit more details. The profile you've sent to me off-list 
tells bjam takes 13 seconds to start up, which, of course, it not good. What 
time would be acceptable?

Also, is your stree-test script representative of your project. I'm asking 
because I've found O(n^2) algorithm in V2 which might be the reason why it's 
does not scale well with the number of targets. However, this algorithm does 
not scale when you add many sources to a main target. E.g one target with 
1000 sources is worse for it than 20 targets with 50 sources. And 1000 
targets case is not very typical.

- Volodya