• Shahar Kohanim's avatar
    cmd/compile, cmd/link: record lengths in object file · 7f067c87
    Shahar Kohanim authored
    Record total number of relocations, pcdata, automatics, funcdata and files in
    object file and use these numbers in the linker to allocate contiguous
    slices to later be filled by the defined symbols.
    
    name       old secs    new secs    delta
    LinkCmdGo   0.52 ± 3%   0.49 ± 3%  -4.21%   (p=0.000 n=91+92)
    LinkJuju    4.48 ± 4%   4.21 ± 7%  -6.08%  (p=0.000 n=96+100)
    
    name       old MaxRSS  new MaxRSS  delta
    LinkCmdGo   122k ± 2%   120k ± 4%  -1.66%   (p=0.000 n=98+93)
    LinkJuju    799k ± 5%   865k ± 8%  +8.29%   (p=0.000 n=89+99)
    
    GOGC=off
    
    name       old secs    new secs    delta
    LinkCmdGo   0.42 ± 2%   0.41 ± 0%  -2.98%    (p=0.000 n=89+70)
    LinkJuju    3.61 ± 0%   3.52 ± 1%  -2.46%    (p=0.000 n=80+89)
    
    name       old MaxRSS  new MaxRSS  delta
    LinkCmdGo   130k ± 1%   128k ± 1%  -1.33%  (p=0.000 n=100+100)
    LinkJuju   1.00M ± 0%  0.99M ± 0%  -1.70%  (p=0.000 n=100+100)
    
    Change-Id: Ie08f6ccd4311bb78d8950548c678230a58635c73
    Reviewed-on: https://go-review.googlesource.com/21026Reviewed-by: 's avatarDavid Crawshaw <crawshaw@golang.org>
    Run-TryBot: David Crawshaw <crawshaw@golang.org>
    TryBot-Result: Gobot Gobot <gobot@golang.org>
    7f067c87
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