Re: [boost] Re: 1.31.0 regressions

From: Beman Dawes (bdawes_at_[hidden])
Date: 2004-02-15 22:32:23

At 03:31 AM 2/13/2004, Raoul Gough wrote:
 >Beman Dawes <bdawes_at_[hidden]> writes:
 >
 >> At 12:35 PM 2/12/2004, Martin Wille wrote:
 >[snip]
 >>  >3. Compile time may become very large for large test
 >>  >    programs or heavy template usage. E.g. in one case,
 >>  >    we had to split a test into three (Spirit's switch_p
 >>  >    tests) in order to make testing feasible.
 >>
 >> It is hard to know the overall effect without accurate timings. My
 >> personal belief is that on average the total time will drop. But we
 >> need timings to know for sure.
 >
 >There are some cases when really big tests would certainly be slower.
 >I had to split some of my Python container library tests into separate
 >modules because g++ was starting to thrash the swapfile(s) on my home
 >machine (with 256MB of RAM). I would guess that otherwise one big test
 >module would certainly be faster, but there is a practical limit there
 >somewhere.

Yes. GCC is a particular problem because of its tendency to run away with 
RAM. I even have trouble sometimes with a 1 Gigabyte system.

--Beman