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Re: [patch] massive libtool speedup for large libs
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Re: [patch] massive libtool speedup for large libs


  • Subject: Re: [patch] massive libtool speedup for large libs
  • From: Laurence Harris <email@hidden>
  • Date: Thu, 1 Mar 2007 10:00:45 -0500


On Mar 1, 2007, at 7:13 AM, Jonas Maebe wrote:

On 1 mrt 2007, at 10:58, Olivier Tristan wrote:

Note that judicious use of plain writes without internal caching can also have a quite detrimental effect on speed. E.g, Apple's ld64 does that (in 10.4 at least) and it's really a lot slower than the regular ld (which seems to write in blocks of at least 32KB). ld64 moreover even does a lot of zero-byte writes (from fs_usage):

[...]

But even without the zero byte writes, performing a system call for writing anything less than 32KB or so is asking for slow performance.

Yes, I still have to file a radar for this (although I'm hesitant to spend time on it, since I suppose that ld64 will have gained significant improvements in 10.5 given that it's much more used there).

This sounds dangerously like an assumption to me. ;-)

Larry

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 >Re: [patch] massive libtool speedup for large libs (From: Jonas Maebe <email@hidden>)

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