• Josh Bleecher Snyder's avatar
    cmd/compile: move Node.Class to flags · 386765af
    Josh Bleecher Snyder authored
    Put it at position zero, since it is fairly hot.
    
    This shrinks gc.Node into a smaller size class on 64 bit systems.
    
    name        old time/op       new time/op       delta
    Template          193ms ± 5%        192ms ± 3%    ~     (p=0.353 n=94+93)
    Unicode          86.1ms ± 5%       85.0ms ± 4%  -1.23%  (p=0.000 n=95+98)
    GoTypes           546ms ± 3%        544ms ± 4%  -0.40%  (p=0.007 n=94+97)
    Compiler          2.56s ± 3%        2.54s ± 3%  -0.67%  (p=0.000 n=99+97)
    SSA               5.13s ± 2%        5.10s ± 3%  -0.55%  (p=0.000 n=94+98)
    Flate             122ms ± 6%        121ms ± 4%  -0.75%  (p=0.002 n=97+95)
    GoParser          144ms ± 5%        144ms ± 4%    ~     (p=0.298 n=98+97)
    Reflect           348ms ± 4%        349ms ± 4%    ~     (p=0.350 n=98+97)
    Tar               105ms ± 5%        104ms ± 5%    ~     (p=0.154 n=96+98)
    XML               200ms ± 5%        198ms ± 4%  -0.71%  (p=0.015 n=97+98)
    [Geo mean]        330ms             328ms       -0.52%
    
    name        old user-time/op  new user-time/op  delta
    Template          229ms ±11%        224ms ± 7%  -2.16%  (p=0.001 n=100+87)
    Unicode           109ms ± 5%        109ms ± 6%    ~     (p=0.897 n=96+91)
    GoTypes           712ms ± 4%        709ms ± 4%    ~     (p=0.085 n=96+98)
    Compiler          3.41s ± 3%        3.36s ± 3%  -1.43%  (p=0.000 n=98+98)
    SSA               7.46s ± 3%        7.31s ± 3%  -2.02%  (p=0.000 n=100+99)
    Flate             145ms ± 6%        143ms ± 6%  -1.11%  (p=0.001 n=99+97)
    GoParser          177ms ± 5%        176ms ± 5%  -0.78%  (p=0.018 n=95+95)
    Reflect           432ms ± 7%        435ms ± 9%    ~     (p=0.296 n=100+100)
    Tar               121ms ± 7%        121ms ± 5%    ~     (p=0.072 n=100+95)
    XML               241ms ± 4%        239ms ± 5%    ~     (p=0.085 n=97+99)
    [Geo mean]        413ms             410ms       -0.73%
    
    name        old alloc/op      new alloc/op      delta
    Template         38.4MB ± 0%       37.7MB ± 0%  -1.85%  (p=0.008 n=5+5)
    Unicode          30.1MB ± 0%       28.8MB ± 0%  -4.09%  (p=0.008 n=5+5)
    GoTypes           112MB ± 0%        110MB ± 0%  -1.69%  (p=0.008 n=5+5)
    Compiler          470MB ± 0%        461MB ± 0%  -1.91%  (p=0.008 n=5+5)
    SSA              1.13GB ± 0%       1.11GB ± 0%  -1.70%  (p=0.008 n=5+5)
    Flate            25.0MB ± 0%       24.6MB ± 0%  -1.67%  (p=0.008 n=5+5)
    GoParser         31.6MB ± 0%       31.1MB ± 0%  -1.66%  (p=0.008 n=5+5)
    Reflect          77.1MB ± 0%       75.8MB ± 0%  -1.69%  (p=0.008 n=5+5)
    Tar              26.3MB ± 0%       25.7MB ± 0%  -2.06%  (p=0.008 n=5+5)
    XML              41.9MB ± 0%       41.1MB ± 0%  -1.93%  (p=0.008 n=5+5)
    [Geo mean]       73.5MB            72.0MB       -2.03%
    
    name        old allocs/op     new allocs/op     delta
    Template           383k ± 0%         383k ± 0%    ~     (p=0.690 n=5+5)
    Unicode            343k ± 0%         343k ± 0%    ~     (p=0.841 n=5+5)
    GoTypes           1.16M ± 0%        1.16M ± 0%    ~     (p=0.310 n=5+5)
    Compiler          4.43M ± 0%        4.42M ± 0%  -0.17%  (p=0.008 n=5+5)
    SSA               9.85M ± 0%        9.85M ± 0%    ~     (p=0.310 n=5+5)
    Flate              236k ± 0%         236k ± 1%    ~     (p=0.841 n=5+5)
    GoParser           320k ± 0%         320k ± 0%    ~     (p=0.421 n=5+5)
    Reflect            988k ± 0%         987k ± 0%    ~     (p=0.690 n=5+5)
    Tar                252k ± 0%         251k ± 0%    ~     (p=0.095 n=5+5)
    XML                399k ± 0%         399k ± 0%    ~     (p=1.000 n=5+5)
    [Geo mean]         741k              740k       -0.07%
    
    Change-Id: I9e952b58a98e30a12494304db9ce50d0a85e459c
    Reviewed-on: https://go-review.googlesource.com/41797
    Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
    TryBot-Result: Gobot Gobot <gobot@golang.org>
    Reviewed-by: 's avatarBrad Fitzpatrick <bradfitz@golang.org>
    Reviewed-by: 's avatarMarvin Stenger <marvin.stenger94@gmail.com>
    386765af
order.go 36.4 KB