On Sat, 10 Mar 2007, Vlad GALU wrote:
On 3/10/07, Kip Macy <[EMAIL PROTECTED]> wrote:
umtx
Is it safe/recommended to use spinlocks, like in jemalloc, for very small
portions of code? I'm particularly interested in protecting writes to a
couple of word sized ints on amd64, so the critical section wouldn't be
longer than two assignments. Of course, I could use a lockless queue for my
purposes, but I'm asking anyway.
I believe that the system malloc library is forced to use low level locking
primitives because the pthread library depends on malloc. I would suggest
using the pthread mutex primitives where at all possible. We might want to
consider adding "adaptive" mutex support to the pthread libraries if we don't
have it.
Robert N M Watson
Computer Laboratory
University of Cambridge
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