Boost logo

Boost-Build :

From: Jurko Gospodnetiæ (jurko.gospodnetic_at_[hidden])
Date: 2008-04-10 20:52:14

   Hi Igor.

> I'm starting to think that perhaps I'm not building the same BJAM that
> you are building. Is there a way for me to check out exactly the same
> version of the trunk that you are using? Also, can you send the
> commands that you used to build BJAM?

   OK, it seems I must have done something wrong the first time. Sorry...

   I now deleted all the builds and rebuilt them again and now I get
timings matching your own - both with the original test Jamfile and the
new one you sent.

   Time to change my vote and say that the patch should be applied to
the trunk. :-) And possibly a test added based on the latest example to
guard against any regressions. Volodya, should I do this or should we
wait for more opinions?

   I retested the new builds with one of our own big projects but it
seems that we just do not hit this speedup scenario there and timings
remain the same. Ah well... :-)

>> > Directly running your test case (even after adding an empty
>> > Jamroot file) on my machine did nothing and exited instantly -
>> > most likely due to a memory allocation error (returned error code
>> > is -1073741819). To make it work I needed to remove the last 3709
>> > entries.
> This is weird. Using the BJAM which was shipped with Boost 1.34.1, I
> see it's memory footprint staying well under 30MB. I ran it using
> "bjam -f Jamfile".

   Ok, this must be something related to my machine and/or compiler
(MSVC 7.1). I now repeated the original test with newly build bjam
executables and they still fail on the original test sample. But I have
not encountered this problem in practice and do not have the time to go
tracking it down in more detail now just for the fun of it :-(.

> thanks again for looking into this!

   My pleasure! :-) Although I do not think you should look at this as a
totally selfless act, :-))) and I guess I should be thanking you as
anything you do to make Boost Build faster - makes it faster for us as
well... :-)))

   Best regards,
     Jurko Gospodnetiæ

Boost-Build list run by bdawes at, david.abrahams at, gregod at, cpdaniel at, john at