Subject: Re: [boost] [lock-free] CDS -yet another lock-free library
From: Khiszinsky, Maxim (Maxim.Khiszinsky_at_[hidden])
Date: 2010-03-30 06:01:29
Tim Blechmann wrote:
>> cmp8xchg16 ... I'm not found any practical application of Itanium
>> cmp8xchg16. At least in my tasks.
> the idea is to compare only the tag
I use other implementation of tagged pointer when each pointer has its own incremental tag.
Comparing only the tag means that there is global counter incremented atomically. As a result a contention on this global counter may be encountered...
On the other hand, cmp8xchg16 lets me possibility implementing tagged pointer on Itanium...
Thanks, Tim! Your advice is really interesting for me
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