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    SubjectRe: [tbench regression fixes]: digging out smelly deadmen.
    On Wed, Oct 29, 2008 at 12:14:05PM +0300, Evgeniy Polyakov (zbr@ioremap.net) wrote:
    > vanilla 27 : 347.222
    > no TSO/GSO : 357.331
    > no hrticks : 382.983
    > no balance : 389.802
    > 4403b4 commit : 361.184
    > dirty_ratio-50 : 361.086
    > no-sched-tweaks : 361.367
    >
    > So, probably, if we revert -tip merge to vanilla .27, add nohrtick patch
    > and nobalance tweak _only_, and apply naive TSO patch we could bring
    > system to 400 MB/s. Note, that .22 has 479.82 and .23 454.36 MB/s.

    And now I have to admit that the very last -top merge did noticebly
    improve the situation upto 391.331 MB/s (189 in domains, with tso/gso
    off and naive tcp_tso_should_defer() hange).

    So we are now essentially at the level of 24-25 trees in my tests.

    --
    Evgeniy Polyakov


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