#2005: Parrot no longer builds on Darwin/PPC
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Reporter: jkeenan | Owner:
Type: bug | Status: new
Priority: critical | Milestone:
Component: build | Version: 3.0.0
Severity: fatal | Keywords:
Lang: | Patch: applied
Platform: darwin |
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Comment(by jkeenan):
Last night bacek suggested I test commit 77b57cc on my Darwin/PPC box.
This commit '''did''' fix the build error reported in the Description of
this ticket. However, performance collapsed: time needed to run `make`
and `make test` soared to approximately 63 minutes. While I don't
normally record this time, my sense is that these days building and
testing usually take 20-25 minutes on this machine.
bacek then encouraged me to build with `--optimize` at the same commit
point. I did so. While that significantly improved the build and test
time to 29:66 -- still worse than I am used to.
(I should note that on this particular build I used `cc=g++`, where
normally I use `cc=gcc` and use `g++` only for `link` and `ld`. At the
moment, I am starting a run using my normal procedure -- a procedure I
have used consistently since December 2006. No `--optimize` is also my
normal procedure, in part out of habit and in part out of the fact that I
get failures with `--optimize` on this box; see TT #1930. As I have
previously argued, even if this machine is old enough that it falls
outside the scope of our 'support' policy, there is value in facing up to
the fact that our software performs worse on it than it did four years ago
-- and we ought to know why it performs worse.)
On my Linux/i386 (a Debian Linode), the situation is much more optimistic.
At 77b57cc I got a combined build and test time of 7:40 without
`--optimize` and 5:66 and 4:58 on two runs with `--optimize`. At
8ae02700, with `--optimize` I got a combined time of 6:57. This
represents only a few runs, but it does suggest that gen_gc is capable of
improving this broad measure of performance whether you optimize or not.
Thank you very much.
kid51
--
Ticket URL: <https://trac.parrot.org/parrot/ticket/2005#comment:5>
Parrot <https://trac.parrot.org/parrot/>
Parrot Development
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