Changes between Version 10 and Version 11 of LateDmd


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Timestamp:
Aug 30, 2013 2:43:13 PM (2 years ago)
Author:
nfrisby
Comment:

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  • LateDmd

    v10 v11  
    1616
    1717  * Ask the performance czars and community for help in determining if we should make -O2 imply -flate-dmd-anal.
     18
     19  * That might involve investigating the more-reliable-looking slowdowns in the New performance numbers section. No slow down was apparent on both platforms (so far), but a couple looked reliable on a given platform. eg typecheck showed the same slowdown regardless of -flate-dmd-anal on the nofib tests (ie same in 10 and 11) and also regardless of mode=norm or mode=slow. Thus it smells like some change in a library function that the main loop of typecheck uses consistently is getting a slowdown. But it's very hard to tell from the numbers and it's take a lot of time to investigate that sort of thing.
    1820
    1921== Relation to other tickets ==
     
    194196Allocations
    195197
    196 -- NB nucliec2 and cryptarithm2 are explained in the "Old performance numbers" section below.
     198-- NB nucleic2 and cryptarithm2 are explained in the "Old performance numbers" section below.
    197199
    198200-------------------------------------------------------------------------------
     
    264266Allocations
    265267
    266 -- NB nucliec2 and cryptarithm2 are explained in the "Old performance numbers" section below.
     268-- NB nucleic2 and cryptarithm2 are explained in the "Old performance numbers" section below.
    267269
    268270-------------------------------------------------------------------------------