[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20110627214300.GB12592@brightrain.aerifal.cx>
Date: Mon, 27 Jun 2011 17:43:00 -0400
From: Rich Felker <dalias@...ifal.cx>
To: musl@...ts.openwall.com
Subject: Re: Anti-bloat side project
On Mon, Jun 27, 2011 at 05:37:39PM -0400, Rich Felker wrote:
> On Mon, Jun 27, 2011 at 11:38:05PM +0200, Szabolcs Nagy wrote:
> > * Rich Felker <dalias@...ifal.cx> [2011-06-27 17:19:09 -0400]:
> > > Bleh. Has there been any serious work to document the causes and how
> > > the code could be changed to fix the syscall bloat though? Or just
> > > preliminat strace and wc -l?
> >
> > most of the syscalls are due to python module imports check
> > 100 different locations before finding the good one
> >
> > imho they measured it and concluded that with modern
> > filesystem caching this does not matter much..
>
> Well they're wrong. Even if the syscall did nothing but enter and
> leave kernelspace, it would still be very expensive. Using a module
> cache/registry of some sort could solve the problem, or they could
> first tackle all the non-open() syscalls which still make up a heavy
> share of the cost..
Of course a better question is... why does "hello world" need to load
any modules anyway? Perhaps a best first step to fixing the problem
would be to demodularize and static link any module that will always
be loaded...
Rich
Powered by blists - more mailing lists
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
