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Re: ice-broker scan thread


  • From: David Boreham <david_list(at)boreham(dot)org>
  • To: pgsql-hackers(at)postgresql(dot)org
  • Subject: Re: ice-broker scan thread
  • Date: Mon, 28 Nov 2005 21:09:55 -0700
  • Message-id: <438BD493(dot)3070507(at)boreham(dot)org>

Gavin Sherry wrote:

MySQL, Oracle and others implement read-ahead threads to simulate async IO

I always believed that Oracle used async file I/O. Not that I've seen their
code, but I'm fairly sure they funded the addition of kernel aio to Linux
a few years back.

But....Oracle comes from a time long ago when threads and decent
filesystems didn't exist, so some of the things they do may not be appropriate
to add to a product that doesn't have them today.

Now...network async I/O...that'd be really useful in my world...





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