PAGED_LAL_SIZE sets the maximum size, in bytes, to use for the
    page dynamic pool lookaside lists. Use of these lookaside lists
    can reduce paged dynamic pool variable freelist fragmentation and
    improve paged pool allocation and deallocation performance.

    By default, PAGED_LAL_SIZE is set to 0, which disables the use of
    the paged dynamic pool lookaside lists.

    For environments experiencing paged pool variable freelist
    fragmentation a modest PAGED_LAL_SIZE, 512, has been adequate
    to improve paged pool performance and reduce fragmentation. If
    this parameter is made large and later decreased in size, some
    paged pool packets can be left unused until the parameter is made
    larger again, or the lookaside lists are reclaimed from due to a
    paged pool shortage. The paged dynamic pool lookaside lists will
    not occupy more than three-quarters of the available paged pool.

    PAGED_LAL_SIZE has DYNAMIC, GEN, and MAJOR attributes.