Subject: Re: [linux-audio-dev] lock-free ring buffer code
From: Tim Hockin (thockin_AT_hockin.org)
Date: Sat Apr 05 2003 - 00:03:05 EEST
> >Also, several people have referred to the atomicity of int/pointer
> >read/write. This is news to me - can someone point me at the spec for this?
>
> its an architecture-specific issue. its not true on SPARCs and on some
> NUMA systems. it has nothing to do with a language per se.
Is it really true on x86? Being that you can do unaligned accesses just
fine, you can certainly do cross-cacheline accesses. Pardon the skepticism,
but I've never heard such assertions before. Can anyone offer me a
specification for this?
This archive was generated by hypermail 2b28 : Sat Apr 05 2003 - 00:10:42 EEST