Re: [ANNOUNCE] Apache::Dispatch-0.03
Roger Espel Llima wrote:
@{"${class}::ISA"}
Incidentally, does anyone know of a way to do this that works under
strict? The above requires a "no strict 'refs'" to work.
Something like this we3nt by on p5p a while ago (IIRCC):
@{$main::{"$class\::"}-{ISA}}
but that's a lot more cryptic that
{
no strict 'refs' ;
@{"${class}::ISA"} ;
}
- Barrie
RE: [ANNOUNCE] Apache::Dispatch-0.03
On Mon, 7 Aug 2000, Geoffrey Young wrote:
ok, here's a pre-PAN
http://morpheus.laserlink.net/~gyoung/modules/Apache-Dispatch-0.04.tar.gz
I borrowed some code from Apache::StatINC to add a single module reload.
Unfortunately, this doesn't cover inherited circumstances, although I don't
know how important that is going to be to folks.
I really wanted to have DispatchStat be On, Off, or ISA, where ISA reloaded
the asked for module and all it's parents - since given Class-method(),
method() might not actually be in Class. Basically, I wasn't able to find a
way to get to @Class::ISA where Class is unknown until run-time (that is,
it's held in $class). I figured I should be able to use some symbolic
referencing or something, but I couldn't get it to work.
@{"${class}::ISA"}
--
Matt/
Fastnet Software Ltd. High Performance Web Specialists
Providing mod_perl, XML, Sybase and Oracle solutions
Email for training and consultancy availability.
http://sergeant.org | AxKit: http://axkit.org
Re: [ANNOUNCE] Apache::Dispatch-0.03
Matt Sergeant wrote:
I really wanted to have DispatchStat be On, Off, or ISA, where ISA reloaded
the asked for module and all it's parents - since given Class-method(),
method() might not actually be in Class. Basically, I wasn't able to find a
way to get to @Class::ISA where Class is unknown until run-time (that is,
it's held in $class). I figured I should be able to use some symbolic
referencing or something, but I couldn't get it to work.
@{"${class}::ISA"}
Yep, that's one weird bit of syntax. I just needed this recently to
write a test.pl, and it took quite a bit of testing to get it working. :)
Incidentally, does anyone know of a way to do this that works under
strict? The above requires a "no strict 'refs'" to work.
--
Roger Espel Llima, [EMAIL PROTECTED]
http://www.iagora.com/~espel/index.html
RE: [ANNOUNCE] Apache::Dispatch-0.03
-Original Message- From: Roger Espel Llima [mailto:[EMAIL PROTECTED]] Sent: Tuesday, August 08, 2000 12:52 PM To: [EMAIL PROTECTED] Subject: Re: [ANNOUNCE] Apache::Dispatch-0.03 [snip] Yep, that's one weird bit of syntax. I just needed this recently to write a test.pl, and it took quite a bit of testing to get it working. :) this showed up in p5p in late june... $foo = "bar"; @$foo = (1,2,3); $foo-[1] = 4; print @bar; wicked cool... --Geoff Incidentally, does anyone know of a way to do this that works under strict? The above requires a "no strict 'refs'" to work. -- Roger Espel Llima, [EMAIL PROTECTED] http://www.iagora.com/~espel/index.html
Re: [ANNOUNCE] Apache::Dispatch-0.03
Geoffrey Young wrote: -Original Message- From: Roger Espel Llima [mailto:[EMAIL PROTECTED]] Sent: Tuesday, August 08, 2000 12:52 PM To: [EMAIL PROTECTED] Subject: Re: [ANNOUNCE] Apache::Dispatch-0.03 [snip] Yep, that's one weird bit of syntax. I just needed this recently to write a test.pl, and it took quite a bit of testing to get it working. :) this showed up in p5p in late june... $foo = "bar"; @$foo = (1,2,3); $foo-[1] = 4; print @bar; wicked cool... standard symbolic referencing. --Geoff Incidentally, does anyone know of a way to do this that works under strict? The above requires a "no strict 'refs'" to work. nope. purposely does not work under strict. -- ___cliff [EMAIL PROTECTED]http://www.genwax.com/
Re: [ANNOUNCE] Apache::Dispatch-0.03
On Tue, 8 Aug 2000, Roger Espel Llima wrote:
@{"${class}::ISA"}
Yep, that's one weird bit of syntax. I just needed this recently to
write a test.pl, and it took quite a bit of testing to get it working. :)
Incidentally, does anyone know of a way to do this that works under
strict? The above requires a "no strict 'refs'" to work.
No, thats a standard thing that is disabled under strict. Of course you'd
only be doing that in some neat hack, so locally disabling strict isn't a
big deal (strict is a lexical pragma, so it only applies in the current
scope).
--
Matt/
Fastnet Software Ltd. High Performance Web Specialists
Providing mod_perl, XML, Sybase and Oracle solutions
Email for training and consultancy availability.
http://sergeant.org | AxKit: http://axkit.org
RE: [ANNOUNCE] Apache::Dispatch-0.03
for anyone who is interested (apparently not many :) I ran a quick "hello
world" LWP::Simple based benchmark using Apache::Registry (with
RegistryLoader), a normal PerlHandler, and Apache::Dispatch...
Benchmark: timing 5000 iterations of dispatch, handler, registry...
dispatch: 108 wallclock secs (24.21 usr + 5.73 sys = 29.94 CPU) @
167.00/s (n=5000)
handler: 91 wallclock secs (22.88 usr + 5.71 sys = 28.59 CPU) @ 174.89/s
(n=5000)
registry: 98 wallclock secs (23.77 usr + 5.45 sys = 29.22 CPU) @ 171.12/s
(n=5000)
and also uncovered a small bug:
--- Dispatch.pm 2000/08/04 15:36:32 1.8
+++ Dispatch.pm 2000/08/07 12:00:41
@@ -105,9 +105,8 @@
# since the uri is dispatchable, check each of the extras
#-
- my @extras = $dcfg-{_extras} ?
- @{$dcfg-{_extras}} :
- @{$scfg-{_extras}};
+ my @extras = $dcfg-{_extras} ? @{$dcfg-{_extras}} :
+$scfg-{_extras} ? @{$scfg-{_extras}} : undef;
foreach my $extra (@extras) {
if ($extra eq "PRE") {
just FYI...
--Geoff
RE: [ANNOUNCE] Apache::Dispatch-0.03
On Mon, 7 Aug 2000, Geoffrey Young wrote: for anyone who is interested (apparently not many :) I ran a quick "hello world" LWP::Simple based benchmark using Apache::Registry (with RegistryLoader), a normal PerlHandler, and Apache::Dispatch... Benchmark: timing 5000 iterations of dispatch, handler, registry... dispatch: 108 wallclock secs (24.21 usr + 5.73 sys = 29.94 CPU) @ 167.00/s (n=5000) handler: 91 wallclock secs (22.88 usr + 5.71 sys = 28.59 CPU) @ 174.89/s (n=5000) registry: 98 wallclock secs (23.77 usr + 5.45 sys = 29.22 CPU) @ 171.12/s (n=5000) Does Dispatch stat() the module on every hit? It might be useful to provide a switch to turn that off, if so. -- Matt/ Fastnet Software Ltd. High Performance Web Specialists Providing mod_perl, XML, Sybase and Oracle solutions Email for training and consultancy availability. http://sergeant.org | AxKit: http://axkit.org
RE: [ANNOUNCE] Apache::Dispatch-0.03
-Original Message-
From: Matt Sergeant [mailto:[EMAIL PROTECTED]]
Sent: Monday, August 07, 2000 8:57 AM
To: Geoffrey Young
Cc: '[EMAIL PROTECTED]'
Subject: RE: [ANNOUNCE] Apache::Dispatch-0.03
On Mon, 7 Aug 2000, Geoffrey Young wrote:
for anyone who is interested (apparently not many :) I ran
a quick "hello
world" LWP::Simple based benchmark using Apache::Registry (with
RegistryLoader), a normal PerlHandler, and Apache::Dispatch...
Benchmark: timing 5000 iterations of dispatch, handler, registry...
dispatch: 108 wallclock secs (24.21 usr + 5.73 sys = 29.94 CPU) @
167.00/s (n=5000)
handler: 91 wallclock secs (22.88 usr + 5.71 sys =
28.59 CPU) @ 174.89/s
(n=5000)
registry: 98 wallclock secs (23.77 usr + 5.45 sys =
29.22 CPU) @ 171.12/s
(n=5000)
Does Dispatch stat() the module on every hit? It might be useful to
provide a switch to turn that off, if so.
here's the only strace fragment with stat calls (with PerlSendHeaders Off)
read(3, "GET /Dispatch/foo HTTP/1.0\r\nConn"..., 4096) = 854
rt_sigaction(SIGUSR1, {SIG_IGN}, {SIG_IGN}, 8) = 0
time(NULL) = 965653681
gettimeofday({965653681, 395188}, NULL) = 0
rt_sigprocmask(SIG_BLOCK, NULL, [RT_0], 8) = 0
stat("/usr/local/apache/spinnaker/Dispatch/foo", 0xb7cc) = -1 ENOENT (No
such file or directory)
stat("/usr/local/apache/spinnaker/Dispatch", 0xb7cc) = -1 ENOENT (No
such file or directory)
stat("/usr/local/apache/spinnaker", {st_mode=S_IFDIR|0755, st_size=1024,
...}) = 0
rt_sigprocmask(SIG_BLOCK, NULL, [RT_0], 8) = 0
rt_sigaction(SIGALRM, NULL, {0x40099490, [], SA_INTERRUPT|0x400}, 8) = 0
dup2(15, 2) = 2
which I would guess is just apache doing apache translation things, right?
After determining the proper class-method() by parsing the uri and making
some assumptions, Dispatch.pm calls class-can(method), which does magic
things, of which I know little about the inner workings...
I was interested in somehow trying to cache known methods to avoid
successive can() calls, but I wasn't quite sure how to go about that one
yet...
does that help?
--Geoff
--
Matt/
Fastnet Software Ltd. High Performance Web Specialists
Providing mod_perl, XML, Sybase and Oracle solutions
Email for training and consultancy availability.
http://sergeant.org | AxKit: http://axkit.org
RE: [ANNOUNCE] Apache::Dispatch-0.03
On Mon, 7 Aug 2000, Geoffrey Young wrote: Does Dispatch stat() the module on every hit? It might be useful to provide a switch to turn that off, if so. which I would guess is just apache doing apache translation things, right? Yes, as the guide says, you could install an Apache::OK trans handler to get rid of those. After determining the proper class-method() by parsing the uri and making some assumptions, Dispatch.pm calls class-can(method), which does magic things, of which I know little about the inner workings... I was interested in somehow trying to cache known methods to avoid successive can() calls, but I wasn't quite sure how to go about that one yet... does that help? No, because it's not what I meant :-) Assuming you're in a development stage, I might expect Dispatch to stat the module that it's loading, like StatINC does, to check if it needs reloading again. And I'd turn that off for development. This gives you the advantage that Apache::Registry has of re-loading new scripts (except in Dispatch's case, its a module not a script). And it won't stat _all_ the modules installed on every hit, like StatINC does, so the overhead should be reasonable. -- Matt/ Fastnet Software Ltd. High Performance Web Specialists Providing mod_perl, XML, Sybase and Oracle solutions Email for training and consultancy availability. http://sergeant.org | AxKit: http://axkit.org
RE: [ANNOUNCE] Apache::Dispatch-0.03
-Original Message- From: Matt Sergeant [mailto:[EMAIL PROTECTED]] Sent: Monday, August 07, 2000 9:29 AM To: Geoffrey Young Cc: '[EMAIL PROTECTED]' Subject: RE: [ANNOUNCE] Apache::Dispatch-0.03 On Mon, 7 Aug 2000, Geoffrey Young wrote: Does Dispatch stat() the module on every hit? It might be useful to provide a switch to turn that off, if so. which I would guess is just apache doing apache translation things, right? Yes, as the guide says, you could install an Apache::OK trans handler to get rid of those. After determining the proper class-method() by parsing the uri and making some assumptions, Dispatch.pm calls class-can(method), which does magic things, of which I know little about the inner workings... I was interested in somehow trying to cache known methods to avoid successive can() calls, but I wasn't quite sure how to go about that one yet... does that help? No, because it's not what I meant :-) oh :) Assuming you're in a development stage, I might expect Dispatch to stat the module that it's loading, like StatINC does, to check if it needs reloading again. And I'd turn that off for development. This gives you the advantage that Apache::Registry has of re-loading new scripts (except in Dispatch's case, its a module not a script). And it won't stat _all_ the modules installed on every hit, like StatINC does, so the overhead should be reasonable. well, I had assumed that for development, one could just install StatINC and have that work, but I didn't actually try it. until now, that is, and yes, it works... so, you are desiring a StatINC like feature within Dispatch itself? sounds like overkill to me - after all, you're in development, so stat()ing everything shouldn't be a big deal... --Geoff -- Matt/ Fastnet Software Ltd. High Performance Web Specialists Providing mod_perl, XML, Sybase and Oracle solutions Email for training and consultancy availability. http://sergeant.org | AxKit: http://axkit.org
RE: [ANNOUNCE] Apache::Dispatch-0.03
On Mon, 7 Aug 2000, Geoffrey Young wrote: Assuming you're in a development stage, I might expect Dispatch to stat the module that it's loading, like StatINC does, to check if it needs reloading again. And I'd turn that off for development. This gives you the advantage that Apache::Registry has of re-loading new scripts (except in Dispatch's case, its a module not a script). And it won't stat _all_ the modules installed on every hit, like StatINC does, so the overhead should be reasonable. well, I had assumed that for development, one could just install StatINC and have that work, but I didn't actually try it. until now, that is, and yes, it works... so, you are desiring a StatINC like feature within Dispatch itself? sounds like overkill to me - after all, you're in development, so stat()ing everything shouldn't be a big deal... OK, so take development out of the picture, and put in there a server that you can't restart, but would like to be able to tweak your scripts on... -- Matt/ Fastnet Software Ltd. High Performance Web Specialists Providing mod_perl, XML, Sybase and Oracle solutions Email for training and consultancy availability. http://sergeant.org | AxKit: http://axkit.org
RE: [ANNOUNCE] Apache::Dispatch-0.03
-Original Message- From: Matt Sergeant [mailto:[EMAIL PROTECTED]] Sent: Monday, August 07, 2000 9:45 AM To: Geoffrey Young Cc: '[EMAIL PROTECTED]' Subject: RE: [ANNOUNCE] Apache::Dispatch-0.03 so, you are desiring a StatINC like feature within Dispatch itself? sounds like overkill to me - after all, you're in development, so stat()ing everything shouldn't be a big deal... OK, so take development out of the picture, and put in there a server that you can't restart, but would like to be able to tweak your scripts on... yeah, yeah... :) actually, someone else asked me off the list for the same type of thing - I wasn't so sure about it, but I guess now I'm out numbered... DispatchStat On|Off coming soon to a server near you... --Geoff -- Matt/ Fastnet Software Ltd. High Performance Web Specialists Providing mod_perl, XML, Sybase and Oracle solutions Email for training and consultancy availability. http://sergeant.org | AxKit: http://axkit.org
RE: [ANNOUNCE] Apache::Dispatch-0.03
ok, here's a pre-PAN http://morpheus.laserlink.net/~gyoung/modules/Apache-Dispatch-0.04.tar.gz I borrowed some code from Apache::StatINC to add a single module reload. Unfortunately, this doesn't cover inherited circumstances, although I don't know how important that is going to be to folks. I really wanted to have DispatchStat be On, Off, or ISA, where ISA reloaded the asked for module and all it's parents - since given Class-method(), method() might not actually be in Class. Basically, I wasn't able to find a way to get to @Class::ISA where Class is unknown until run-time (that is, it's held in $class). I figured I should be able to use some symbolic referencing or something, but I couldn't get it to work. other than that, it seems to work ok... suggestions welcome :) --Geoff
