Re: A single linked list using a futex...

From	"Chris M. Thomasson" <chris.m.thomasson.1@gmail.com>
Newsgroups	comp.lang.c++
Subject	Re: A single linked list using a futex...
Date	2021-05-25 23:21 -0700
Organization	Aioe.org NNTP Server
Message-ID	<s8kpcm$1khc$1@gioia.aioe.org> (permalink)
References	<s8kaa0$i6a$1@gioia.aioe.org> <s8kp5j$3pj$1@dont-email.me>

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On 5/25/2021 11:17 PM, Bonita Montero wrote:
> I'm too lazy to read your code.
> 
>> #define CT_L2_ALIGNMENT 128
> 
> But this is a false assumption. Except from the Intel Pentium 4 and
> the IBM POWER's L4-caches (embedded DRAM) there are AFAIK no caches
> that have 128 byte cacheline size. 128 byte cachelines have been pro-
> ven to be inefficient below a certain cache-size because the cache-
> lines become used too partitially as there's a too less reusage-be-
> haviour of the working-set.
> Better use this:
> https://en.cppreference.com/w/cpp/thread/hardware_destructive_interference_size 
> 

Yes, you are correct. std::hardware_constructive_interference_size is 
the way to go. Thanks for taking a look at my code to begin with Bonita!

:^)

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A single linked list using a futex... "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-05-25 19:03 -0700
  Re: A single linked list using a futex... Bonita Montero <Bonita.Montero@gmail.com> - 2021-05-26 04:35 +0200
    Re: A single linked list using a futex... "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-05-25 19:42 -0700
      Re: A single linked list using a futex... Bonita Montero <Bonita.Montero@gmail.com> - 2021-05-26 04:45 +0200
        Re: A single linked list using a futex... "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-05-25 19:57 -0700
        Re: A single linked list using a futex... "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-05-25 22:59 -0700
          Re: A single linked list using a futex... "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-05-25 22:59 -0700
  Re: A single linked list using a futex... Bonita Montero <Bonita.Montero@gmail.com> - 2021-05-26 08:17 +0200
    Re: A single linked list using a futex... "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-05-25 23:21 -0700

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