Testing GCC & OSDL (Was: RFC: Generated structure layout tests for gcc.dg/compat/struct-layout-1 (take 2))

[Joseph S. Myers]

On Fri, 17 Sep 2004, Laurent GUERBY wrote:

> My offer to buy disks if needed is still valid though,
> it is useful IMHO to keep on line bootstraped and installed compilers to
> check quickly later a given piece of code over the time - compile time,
> run time or behaviour, disk space is kind of cheap these days.

A regression tester that tests every mainline commit rather than batching 
them would be feasible on a small cluster of machines (about 30 commits a 
day to mainline, a bit more if you want to test release branches as well), 
but keeping all the installed compilers from such a process would take 
about 9GB a day (and if you want them available long-term to identify the 
exact commit at which any newly discovered regression came in, this 
storage does need to be backed up).

-- 
Joseph S. Myers               http://www.srcf.ucam.org/~jsm28/gcc/
  http://www.srcf.ucam.org/~jsm28/gcc/#c90status - status of C90 for GCC 4.0
    jsm@polyomino.org.uk (personal mail)
    jsm28@gcc.gnu.org (Bugzilla assignments and CCs)