From: Rich Felker <dalias@aerifal.cx>
To: musl@lists.openwall.com
Subject: Re: Anti-bloat side project
Date: Mon, 27 Jun 2011 17:37:39 -0400 [thread overview]
Message-ID: <20110627213739.GA12592@brightrain.aerifal.cx> (raw)
In-Reply-To: <20110627213805.GD5036@port70.net>
On Mon, Jun 27, 2011 at 11:38:05PM +0200, Szabolcs Nagy wrote:
> * Rich Felker <dalias@aerifal.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..
Rich
next prev parent reply other threads:[~2011-06-27 21:37 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-27 17:08 Rich Felker
2011-06-27 21:16 ` Szabolcs Nagy
2011-06-27 21:19 ` Rich Felker
2011-06-27 21:38 ` Szabolcs Nagy
2011-06-27 21:37 ` Rich Felker [this message]
2011-06-27 21:43 ` Rich Felker
2011-06-29 14:19 ` Szabolcs Nagy
2011-06-29 19:27 ` Rich Felker
2011-06-29 20:03 ` Szabolcs Nagy
2011-08-16 13:03 ` Moritz Wilhelmy
2011-08-16 13:06 ` Rich Felker
2011-08-16 13:16 ` Moritz Wilhelmy
2011-08-16 13:52 ` Rich Felker
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