[gentoo-dev] Re: Re: Re: Stack smash protected daemons

[Duncan]

John Richard Moser posted <4154E037.20201@×××××××.net>, excerpted below, 
on Fri, 24 Sep 2004 23:04:23 -0400:

> Duncan wrote:
> |
> | The definitive benchmark for Python in Gentoo would certainly have to be
> | portage, in terms of what's going to affect the most people.
> |
> Portage spend almost 100% of its time in other programs, i.e. gcc.  :)

While that's true in general emerges, is it /also/ true of emerge sync?

I'm not talking the actual network stuff, but the portions of it where the
network isn't active, namely, the portions that list dirs in
single lines (double lines with a percent indicate it actually had to
fetch something), and the ">>> Updating Portage cache..." and "Performing
Global Updates:" portions.  With a 4Mbps CHSI connection, even with a dual
Opteron, that process isn't network bound, but rather local bound.  Or are
all those simple calls to BASH scripts and the like?  (Even if so, if it
affects the BASH script parsing, which is after all lots of string
functions, that's certainly worth benchmarking.)

Of course, parts of that may well be disk i/o bound rather than CPU bound,
and I'm not sure Portage (Python/Bash) is multi-threading anyway, so it
may well only use one CPU (I haven't checked), but one of the claims made
for .51 is that it's a lot faster, now (well, unless crypto signing checks
are turned on, which they really should be for security), and that claim
has to be on /some/ part of it. I believe I'd generally be in favor of SSP
even if it DID seriously affect Portage and the like, but that's still
something to keep in mind, if it does.

-- 
Duncan - List replies preferred.   No HTML msgs.
"They that can give up essential liberty to obtain a little
temporary safety, deserve neither liberty nor safety." --
Benjamin Franklin



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