From: "Evan Weaver" <evan-72XWLPH10WVXUHR/Jj/Uug@public.gmane.org>
To: mongrel-development-GrnCvJ7WPxnNLxjTenLetw@public.gmane.org
Subject: Re: [PATCH] http11: ~6% performance increase in header parsing
Date: Tue, 25 Mar 2008 00:53:16 -0400 [thread overview]
Message-ID: <b6f68fc60803242153i65dbb67re6bc9457060ee03f@mail.gmail.com> (raw)
In-Reply-To: <20080325034307.GA13379@soma>
> I never committed the Ragel 6 upgrade to trunk because I couldn't figure
> out why it was broken. I was hoping someone else would step in and fix
> it for us :)
Maybe Ry knows. Otherwise, I'll try to hack through it. I think
something might have to happen in the state transitions to make up for
the inability to explicitly close the output (is that even remotely
close?).
> Digging into the revision history (with git :), the nasty_pound_header
> test was committed in its commented form in r361 and has never changed
> until now.
I'm not surprised, but there was no comment as to why it was disabled,
so I enabled it and let it fail. We should maybe remove that test
entirely and document multiline headers as not supported.
Thanks for looking in to this.
Evan
> >
> > On Sat, Mar 8, 2008 at 6:02 PM, Eric Wong <normalperson-rMlxZR9MS24@public.gmane.org> wrote:
> > > Evan Weaver <evan-72XWLPH10WVXUHR/Jj/Uug@public.gmane.org> wrote:
> > >
> > > > Upgrading ragel is fine with me.
> > >
> > > Here's my work-in-progress. The changes below are pretty much copied
> > > from ry's changes in ebb.
> > >
> > > I haven't been able to figure out why
> > > test_horrible_queries(HttpParserTest) is failing, so any help here would
> > > be appreciated.
> > >
> > > Thanks.
> > >
> > > diff --git a/Rakefile b/Rakefile
> > > index f47d7a2..07a89c2 100644
> > > --- a/Rakefile
> > > +++ b/Rakefile
> > > @@ -55,13 +55,15 @@ task :ragel do
> > > Dir.chdir "ext/http11" do
> > > target = "http11_parser.c"
> > > File.unlink target if File.exist? target
> > > - sh "ragel http11_parser.rl | rlgen-cd -G2 -o #{target}"
> > > + # sh "ragel http11_parser.rl | rlgen-cd -G2 -o #{target}" # ragel 5.x
> > > + sh "ragel -G2 http11_parser.rl" # ragel 6.0
> > > raise "Failed to build C source" unless File.exist? target
> > > end
> > > Dir.chdir "ext/http11" do
> > > target = "../../ext/http11_java/org/jruby/mongrel/Http11Parser.java"
> > > File.unlink target if File.exist? target
> > > - sh "ragel -J http11_parser.java.rl | rlgen-java -o #{target}"
> > > + # sh "ragel -J http11_parser.java.rl | rlgen-java -o #{target}" # ragel 5.x
> > > + sh "ragel -J -o #{target} http11_parser.java.rl" # ragel 6.0
> > > raise "Failed to build Java source" unless File.exist? target
> > > end
> > > end
> > > diff --git a/ext/http11/http11_parser.rl b/ext/http11/http11_parser.rl
> > > index a418605..0c4e2d4 100644
> > > --- a/ext/http11/http11_parser.rl
> > > +++ b/ext/http11/http11_parser.rl
> > > @@ -114,7 +114,7 @@ size_t http_parser_execute(http_parser *parser, const char *buffer, size_t len,
> > > p = buffer+off;
> > > pe = buffer+len;
> > >
> > > - assert(*pe == '\0' && "pointer does not end on NUL");
> > > + /* assert(*pe == '\0' && "pointer does not end on NUL"); */
> > > assert(pe - p == len - off && "pointers aren't same distance");
> > >
> > >
> > > @@ -130,23 +130,11 @@ size_t http_parser_execute(http_parser *parser, const char *buffer, size_t len,
> > > assert(parser->field_len <= len && "field has length longer than whole buffer");
> > > assert(parser->field_start < len && "field starts after buffer end");
> > >
> > > - if(parser->body_start) {
> > > - /* final \r\n combo encountered so stop right here */
> > > - %%write eof;
> > > - parser->nread++;
> > > - }
> > > -
> > > return(parser->nread);
> > > }
> > >
> > > int http_parser_finish(http_parser *parser)
> > > {
> > > - int cs = parser->cs;
> > > -
> > > - %%write eof;
> > > -
> > > - parser->cs = cs;
> > > -
> > > if (http_parser_has_error(parser) ) {
> > > return -1;
> > > } else if (http_parser_is_finished(parser) ) {
> > > @@ -161,5 +149,5 @@ int http_parser_has_error(http_parser *parser) {
> > > }
> > >
> > > int http_parser_is_finished(http_parser *parser) {
> > > - return parser->cs == http_parser_first_final;
> > > + return parser->cs >= http_parser_first_final;
> > > }
> > > --
> > >
> > >
> > > Eric Wong
> > --
> > Evan Weaver
> > Cloudburst, LLC
>
>
> _______________________________________________
> Mongrel-development mailing list
> Mongrel-development-GrnCvJ7WPxnNLxjTenLetw@public.gmane.org
> http://rubyforge.org/mailman/listinfo/mongrel-development
>
--
Evan Weaver
Cloudburst, LLC
next prev parent reply other threads:[~2008-03-25 4:54 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20080229015309.GA9080@untitled>
[not found] ` <20080303044659.5a550c19.zedshaw@zedshaw.com>
[not found] ` <20080302123712.GA13979@hand.yhbt.net>
[not found] ` <20080306075421.GA1583@hand.yhbt.net>
[not found] ` <3ae7f4480803060153v18e955a5j9038f93e558f81d1@mail.gmail.com>
[not found] ` <3ae7f4480803060153v18e955a5j9038f93e558f81d1-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-03-08 8:12 ` [PATCH] http11: ~6% performance increase in header parsing Eric Wong
[not found] ` <20080308081210.GA30702-r0bfCMRs158eIZ0/mPfg9Q@public.gmane.org>
2008-03-08 8:14 ` Evan Weaver
[not found] ` <b6f68fc60803080014x3241d9b0n6430c5ec93f7ea2d-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-03-08 22:02 ` Eric Wong
2008-03-24 18:39 ` Evan Weaver
[not found] ` <b6f68fc60803241139g70b2d8a3v5d01e7472367fb74-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-03-25 3:43 ` Eric Wong
2008-03-25 4:53 ` Evan Weaver [this message]
[not found] ` <b6f68fc60803242153i65dbb67re6bc9457060ee03f-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-03-25 8:13 ` ry dahl
2008-03-08 12:37 ` Luis Lavena
2008-03-08 17:37 ` ry dahl
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