From: Charlie Somerville <charliesome@...>
Date: 2014-03-12T11:09:11+11:00
Subject: [ruby-core:61425] Re: [REJECT?] xmalloc/xfree: reduce atomic ops w/ thread-locals

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On Wednesday, 12 March 2014 at 11:06 am, Eric Wong wrote:
> This gives a =7E12% speedup to the bm=5Fso=5Fcount=5Fwords.rb benchmark=

> which does many small mallocs. This pattern is common in some Ruby
> scripts doing text processing, so maybe it is worth doing.


This is pretty common in large applications (eg. Rails apps), so this may=
 be beneficial there.

I=E2=80=99ll perform some experiments and report back.


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                <div><span style=3D=22color: rgb(160, 160, 168);=22>On We=
dnesday, 12 March 2014 at 11:06 am, Eric Wong wrote:</span></div>
                <blockquote type=3D=22cite=22 style=3D=22border-left-styl=
e:solid;border-width:1px;margin-left:0px;padding-left:10px;=22>
                    <span><div style=3D=22color: rgb(0, 0, 0); font-famil=
y: Helvetica; font-size: 13px; font-style: normal; font-variant: normal; =
font-weight: normal; letter-spacing: normal; line-height: normal; orphans=
: auto; text-align: start; text-indent: 0px; text-transform: none; white-=
space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width=
: 0px; background-color: rgb(255, 255, 255);=22>This gives a =7E12% speed=
up to the bm=5Fso=5Fcount=5Fwords.rb benchmark</div><div style=3D=22color=
: rgb(0, 0, 0); font-family: Helvetica; font-size: 13px; font-style: norm=
al; font-variant: normal; font-weight: normal; letter-spacing: normal; li=
ne-height: normal; orphans: auto; text-align: start; text-indent: 0px; te=
xt-transform: none; white-space: normal; widows: auto; word-spacing: 0px;=
 -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);=22=
>which does many small mallocs. This pattern is common in some Ruby</div>=
<div style=3D=22color: rgb(0, 0, 0); font-family: Helvetica; font-size: 1=
3px; font-style: normal; font-variant: normal; font-weight: normal; lette=
r-spacing: normal; line-height: normal; orphans: auto; text-align: start;=
 text-indent: 0px; text-transform: none; white-space: normal; widows: aut=
o; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: r=
gb(255, 255, 255);=22>scripts doing text processing, so maybe it is worth=
 doing.</div></span>
                =20
                =20
                =20
                =20
                </blockquote>
                =20
                <div>
                    <br>
                </div><div>This is pretty common in large applications (e=
g. Rails apps), so this may be beneficial there.</div><div><br></div><div=
>I=E2=80=99ll perform some experiments and report back.</div><div><br></d=
iv>
            
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