• =?UTF-8?Q?About_=e2=80=9cwrite_combining_store_buffers=e2=80=9d=2e?= =?

    From Wisdom91@21:1/5 to All on Thu Jul 30 13:59:36 2020

    About “write combining store buffers”..

    Modern CPUs employ lots of techniques to counteract the latency cost
    of going to main memory. These days CPUs can process hundreds of
    instructions in the time it takes to read or write data to the DRAM
    memory banks.

    The major tool used to hide this latency is multiple layers of SRAM
    cache. In addition, SMP systems employ message-passing protocols to
    achieve coherence between caches. Unfortunately CPUs are now so fast
    that even these caches cannot keep up at times. So to further hide this latency a number of less well-known buffers are used.

    This article explores “write combining store buffers” and how we can
    write code that uses them effectively.

    Read more here:


    Thank you,
    Amine Moulay Ramdane.

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