On 08/06/2018 02:07 AM, ToddAndMargo wrote:
On 08/06/2018 01:02 AM, Simon Proctor wrote:
Sorry I wrote my earlier email on my phone without a computer to hand.
Here's a quick rundown on what I'm talking about.
--stagestats gives you the breakdown on how much time is spent doing
various steps (note that using time instead of date; date gives you a
better timing of how long something took.
time perl6 --stagestats -e ""
Stage start : 0.000
Stage parse : 0.089
Stage syntaxcheck: 0.000
Stage ast : 0.000
Stage optimize : 0.001
Stage mast : 0.004
Stage mbc : 0.000
Stage moar : 0.000
real 0m0.144s
user 0m0.155s
sys 0m0.032s
And generally that's going to be the case for most short programs, in
these cases especially moving to having the core of your code in
modules with give you a speed boost.
Sorry if my comments earlier were unhelpful.
Simon
On Mon, 6 Aug 2018 at 08:56 ToddAndMargo <toddandma...@zoho.com
<mailto:toddandma...@zoho.com>> wrote:
>> On Sun, 5 Aug 2018, 23:45 Elizabeth Mattijsen, <l...@wenzperl.nl
<mailto:l...@wenzperl.nl>
>> <mailto:l...@wenzperl.nl <mailto:l...@wenzperl.nl>>> wrote:
>>
>> > On 1 Aug 2018, at 20:14, ToddAndMargo
<toddandma...@zoho.com <mailto:toddandma...@zoho.com>
>> <mailto:toddandma...@zoho.com
<mailto:toddandma...@zoho.com>>> wrote:
>> > Is it just me or does Perl 6 take about three times as
long to
>> > start up as Perl 5? I do have a very fast machine and it
takes
>> > about seven see for some of my Perl 6 stuff to get past
the
>> > ruminating phase and start running.
>>
>> Seven seconds? Seven? That seems *very* long indeed.
>>
>> How long does it take to do:
>>
>> perl6 -e ‘’
>>
>> ? That should be in the order of 130 msecs. If that’s the
case,
>> then you’re probably doing a lot of grammar changes to Perl
6. But
>> without the actual code, this remains guessing.
>>
>>
>> > Any workaround for this, or is this just growing pains
for Perl 6?
>>
>> Not sure :-)
>>
>>
>>
>> Liz
>>
>> --
>> Simon Proctor
>> Cognoscite aliquid novum cotidie
On 08/05/2018 10:57 PM, Simon Proctor wrote:
> Have you tried running with --stagestats which gives you a break
down of
> where the time is being spent?
>
> On thing is if you are running large script files it came take a
while.
> Moving your code into modules, which get precompiled can give a
> significant speed boost.
Does this tell you anything?
$ curl --fail --head https://google.com; echo $?
HTTP/2 301
location: https://www.google.com/
content-type: text/html; charset=UTF-8
date: Mon, 06 Aug 2018 05:19:51 GMT
expires: Wed, 05 Sep 2018 05:19:51 GMT
cache-control: public, max-age=2592000
server: gws
content-length: 220
x-xss-protection: 1; mode=block
x-frame-options: SAMEORIGIN
alt-svc: quic=":443"; ma=2592000; v="44,43,39,35"
0
--
Simon Proctor
Cognoscite aliquid novum cotidie
real 0m14.580s
user 0m13.723s
sys 0m0.418s
The program is 6160 line long plus a bunch of imported
modules.
The Perl 5 version of this program that starts three
times faster is 6354 lines long plus a bunch if imported
modules.
The slow start is not a reason to go back to p5 for
any reason. It would just be nice if it started faster.
