Re: Apache::SharedMem

2002-10-06 Thread Perrin Harkins 

[EMAIL PROTECTED] wrote:
 We are using IPC::MM and it works great.

IPC::MM is the fastest game in town.  It's only drawback is that the 
data is not persistent, so if you want your cache to persist across 
restarts it won't work for you.

Apache::SharedMem and all the other modules based IPC::ShareLite or 
IPC::Shareable are slow.  If IPC::MM won't work for you, I'd suggest 
MLDBM::Sync, Cache::FileCache, or Cache::Mmap.

- Perrin

Re: Apache::SharedMem

2002-10-05 Thread siberian 

We are using IPC::MM and it works great. We use it to 
cache about 5000 strings for our internationlized systems 
( EFIGS-J right now, going to 15 languages soon ). Its 
pretty easy, in our startup handler we have :

my $MM_SIZE = 500;
my $MM_FILE = 'st_cache_mm_file';
my $st_cache_mm = IPC::MM::mm_create($MM_SIZE, $MM_FILE);
my $st_cache_btree = 
IPC::MM::mm_make_btree_table($st_cache_mm);
tie %CACHE::mmcache, 'IPC::MM::BTree', $st_cache_btree;

Then we access it via the $CACHE::mmcache variable by 
language ID/Message ID hashes.

The performance is pretty good, a huge huge improvement 
over direct to database calls. The way we have it 
configured is that each child calls a function per string. 
This function checkes the apache wide MM cache, if it 
doesn't find it then it grabs it from the DB and sticks it 
there for the next child to come along. We were using 'per 
child' caching but it was slow, expensive and gave page 
load speeds with a lot of variance ( .5-1.5 seconds for 
cache, 10 seconds for uncachced ). It was pretty nasty.

We are not really expiring our cache, we just HUP apache 
to re-initialize it since MM is local to the root apache 
process.

Your mileage may vary, ours is pretty good.

John

On Sat, 05 Oct 2002 15:40:05 -0300
  Cristóvão Dalla Costa [EMAIL PROTECTED] wrote:
Does anyone have experience with Apache::SharedMem? I'd 
like to use it to store an in-perl cache of a few 
thousand database items, in order to decrease load, but I 
noticed that it's version 0.09 and not updated in a year, 
so I became a little suspicious. Any comments?

Thanks.

Re: Apache::SharedMem 0.07 installation problem

2001-10-02 Thread Olivier Poitrey 

What this command return on your system:

$ perl -MIPC::SysV -e 'print IPC::SysV::ftok($ENV{PWD}, $), \n'

best regards

--
___
 O  l  i  v  i  e  rP  o  i  t  r  e  y

USA disaster support http://www.osdn.com/911.shtml

- Original Message -
From: Alexei Barantsev [EMAIL PROTECTED]
To: Modperl List [EMAIL PROTECTED]
Sent: Tuesday, October 02, 2001 8:32 AM
Subject: Apache::SharedMem 0.07 installation problem


 I have problems with Apache::SharedMem 0.07 installation.

 Here is my configuration:

   bash$ uname -a
   Linux dallas 2.2.14-5.0 #1 Tue Mar 7 21:07:39 EST 2000 i686 unknown

   bash$ perl -v
   This is perl, v5.6.1 built for i686-linux

 And here is 'make test' report:

 bash$ make test TEST_VERBOSE=1
 PERL_DL_NONLAZY=1

/usr/bin/perl5.00503 -Iblib/arch -Iblib/lib -I/usr/lib/perl5/5.00503/i386-li
 nux -I/usr/lib/perl5/5.005
 03 -e 'use Test::Harness qw(runtests $verbose); $verbose=1; runtests
 @ARGV;' t/*.t
 t/assign..1..8
 ok 1
 Use of uninitialized value at blib/lib/Apache/SharedMem.pm line 1073.
 Use of uninitialized value at blib/lib/Apache/SharedMem.pm line 1075.
 Apache::SharedMem object creation missing rootkey parameter. at t/assign.t
 line 14
 dubious
 Test returned status 2 (wstat 512, 0x200)
 DIED. FAILED tests 2-8
 Failed 7/8 tests, 12.50% okay
 t/import..1..5
 ok 1
 ok 2
 ok 3
 ok 4
 ok 5
 ok
 t/smartlock...1..16
 ok 1
 Use of uninitialized value at blib/lib/Apache/SharedMem.pm line 1073.
 Use of uninitialized value at blib/lib/Apache/SharedMem.pm line 1075.
 Apache::SharedMem object creation missing rootkey parameter. at
 t/smartlock.t line 14
 dubious
 Test returned status 2 (wstat 512, 0x200)
 DIED. FAILED tests 2-16
 Failed 15/16 tests, 6.25% okay
 t/timedoutlock1..8
 ok 1
 Use of uninitialized value at blib/lib/Apache/SharedMem.pm line 1073.
 Use of uninitialized value at blib/lib/Apache/SharedMem.pm line 1075.
 Apache::SharedMem object creation missing rootkey parameter. at
 t/timedoutlock.t line 14
 dubious
 Test returned status 2 (wstat 512, 0x200)
 DIED. FAILED tests 2-8
 Failed 7/8 tests, 12.50% okay
 t/zdestroy1..3
 Use of uninitialized value at blib/lib/Apache/SharedMem.pm line 1073.
 Use of uninitialized value at blib/lib/Apache/SharedMem.pm line 1075.
 Apache::SharedMem object creation missing rootkey parameter. at
t/zdestroy.t
 line 14
 dubious
 Test returned status 2 (wstat 512, 0x200)
 DIED. FAILED tests 1-3
 Failed 3/3 tests, 0.00% okay
 Failed Test  Stat Wstat Total Fail  Failed  List of Failed
 --
--
 ---
 t/assign.t  2   512 87  87.50%  2-8
 t/smartlock.t   2   51216   15  93.75%  2-16
 t/timedoutlock.t2   512 87  87.50%  2-8
 t/zdestroy.t2   512 33 100.00%  1-3
 Failed 4/5 test scripts, 20.00% okay. 32/40 subtests failed, 20.00% okay.
 make: *** [test_dynamic] Error 2

 --
 Alexei Barantsev, ISP RAS
 E-mail: [EMAIL PROTECTED]
 ICQ   : 3959207

RE: Apache::SharedMem 0.07 installation problem

2001-10-02 Thread Alexei Barantsev 

Nothing, sir! :) The matter is that $ENV{PWD} is empty.

Neither works this one:
$ perl -MIPC::SysV -e 'print IPC::SysV::ftok(`pwd`, $), \n'

This variant works though:
$ perl -MIPC::SysV -e 'chomp($pwd = `pwd`); print IPC::SysV::ftok($pwd, $),
\n'
-1760399103

 -Original Message-
 From: Olivier Poitrey [mailto:[EMAIL PROTECTED]]
 Sent: Tuesday, October 02, 2001 12:24 PM
 To: [EMAIL PROTECTED]; Modperl List
 Subject: Re: Apache::SharedMem 0.07 installation problem


 What this command return on your system:

 $ perl -MIPC::SysV -e 'print IPC::SysV::ftok($ENV{PWD}, $), \n'

 best regards

 --
 __
 _
  O  l  i  v  i  e  rP  o  i  t  r  e  y

 USA disaster support http://www.osdn.com/911.shtml

 - Original Message -
 From: Alexei Barantsev [EMAIL PROTECTED]
 To: Modperl List [EMAIL PROTECTED]
 Sent: Tuesday, October 02, 2001 8:32 AM
 Subject: Apache::SharedMem 0.07 installation problem


  I have problems with Apache::SharedMem 0.07 installation.
 
  Here is my configuration:
 
bash$ uname -a
Linux dallas 2.2.14-5.0 #1 Tue Mar 7 21:07:39 EST 2000 i686 unknown
 
bash$ perl -v
This is perl, v5.6.1 built for i686-linux
 
  And here is 'make test' report:
 
  bash$ make test TEST_VERBOSE=1
  PERL_DL_NONLAZY=1
 
 /usr/bin/perl5.00503 -Iblib/arch -Iblib/lib
 -I/usr/lib/perl5/5.00503/i386-li
  nux -I/usr/lib/perl5/5.005
  03 -e 'use Test::Harness qw(runtests $verbose); $verbose=1; runtests
  @ARGV;' t/*.t
  t/assign..1..8
  ok 1
  Use of uninitialized value at blib/lib/Apache/SharedMem.pm line 1073.
  Use of uninitialized value at blib/lib/Apache/SharedMem.pm line 1075.
  Apache::SharedMem object creation missing rootkey parameter. at
 t/assign.t
  line 14
  dubious
  Test returned status 2 (wstat 512, 0x200)
  DIED. FAILED tests 2-8
  Failed 7/8 tests, 12.50% okay
  t/import..1..5
  ok 1
  ok 2
  ok 3
  ok 4
  ok 5
  ok
  t/smartlock...1..16
  ok 1
  Use of uninitialized value at blib/lib/Apache/SharedMem.pm line 1073.
  Use of uninitialized value at blib/lib/Apache/SharedMem.pm line 1075.
  Apache::SharedMem object creation missing rootkey parameter. at
  t/smartlock.t line 14
  dubious
  Test returned status 2 (wstat 512, 0x200)
  DIED. FAILED tests 2-16
  Failed 15/16 tests, 6.25% okay
  t/timedoutlock1..8
  ok 1
  Use of uninitialized value at blib/lib/Apache/SharedMem.pm line 1073.
  Use of uninitialized value at blib/lib/Apache/SharedMem.pm line 1075.
  Apache::SharedMem object creation missing rootkey parameter. at
  t/timedoutlock.t line 14
  dubious
  Test returned status 2 (wstat 512, 0x200)
  DIED. FAILED tests 2-8
  Failed 7/8 tests, 12.50% okay
  t/zdestroy1..3
  Use of uninitialized value at blib/lib/Apache/SharedMem.pm line 1073.
  Use of uninitialized value at blib/lib/Apache/SharedMem.pm line 1075.
  Apache::SharedMem object creation missing rootkey parameter. at
 t/zdestroy.t
  line 14
  dubious
  Test returned status 2 (wstat 512, 0x200)
  DIED. FAILED tests 1-3
  Failed 3/3 tests, 0.00% okay
  Failed Test  Stat Wstat Total Fail  Failed  List of Failed
 
 --
 --
  ---
  t/assign.t  2   512 87  87.50%  2-8
  t/smartlock.t   2   51216   15  93.75%  2-16
  t/timedoutlock.t2   512 87  87.50%  2-8
  t/zdestroy.t2   512 33 100.00%  1-3
  Failed 4/5 test scripts, 20.00% okay. 32/40 subtests failed,
 20.00% okay.
  make: *** [test_dynamic] Error 2
 
  --
  Alexei Barantsev, ISP RAS
  E-mail: [EMAIL PROTECTED]
  ICQ   : 3959207

Re: Apache::SharedMem 0.07 installation problem

2001-10-02 Thread Olivier Poitrey 

Ok, the test failed because your $ENV{PWD} is empty, I'll trap this error on
0.08. By the way,
why is your $ENV{PWD} empty ?

regards

--
___
 O  l  i  v  i  e  rP  o  i  t  r  e  y

USA disaster support http://www.osdn.com/911.shtml*

- Original Message -
From: Alexei Barantsev [EMAIL PROTECTED]
To: Olivier Poitrey [EMAIL PROTECTED]; Modperl List
[EMAIL PROTECTED]
Sent: Tuesday, October 02, 2001 10:50 AM
Subject: RE: Apache::SharedMem 0.07 installation problem


 Nothing, sir! :) The matter is that $ENV{PWD} is empty.

 Neither works this one:
 $ perl -MIPC::SysV -e 'print IPC::SysV::ftok(`pwd`, $), \n'

 This variant works though:
 $ perl -MIPC::SysV -e 'chomp($pwd = `pwd`); print IPC::SysV::ftok($pwd,
$),
 \n'
 -1760399103

  -Original Message-
  From: Olivier Poitrey [mailto:[EMAIL PROTECTED]]
  Sent: Tuesday, October 02, 2001 12:24 PM
  To: [EMAIL PROTECTED]; Modperl List
  Subject: Re: Apache::SharedMem 0.07 installation problem
 
 
  What this command return on your system:
 
  $ perl -MIPC::SysV -e 'print IPC::SysV::ftok($ENV{PWD}, $), \n'
 
  best regards
 
  --
  __
  _
   O  l  i  v  i  e  rP  o  i  t  r  e  y
 
  USA disaster support http://www.osdn.com/911.shtml
 
  - Original Message -
  From: Alexei Barantsev [EMAIL PROTECTED]
  To: Modperl List [EMAIL PROTECTED]
  Sent: Tuesday, October 02, 2001 8:32 AM
  Subject: Apache::SharedMem 0.07 installation problem
 
 
   I have problems with Apache::SharedMem 0.07 installation.
  
   Here is my configuration:
  
 bash$ uname -a
 Linux dallas 2.2.14-5.0 #1 Tue Mar 7 21:07:39 EST 2000 i686 unknown
  
 bash$ perl -v
 This is perl, v5.6.1 built for i686-linux
  
   And here is 'make test' report:
  
   bash$ make test TEST_VERBOSE=1
   PERL_DL_NONLAZY=1
  
  /usr/bin/perl5.00503 -Iblib/arch -Iblib/lib
  -I/usr/lib/perl5/5.00503/i386-li
   nux -I/usr/lib/perl5/5.005
   03 -e 'use Test::Harness qw(runtests $verbose); $verbose=1; runtests
   @ARGV;' t/*.t
   t/assign..1..8
   ok 1
   Use of uninitialized value at blib/lib/Apache/SharedMem.pm line 1073.
   Use of uninitialized value at blib/lib/Apache/SharedMem.pm line 1075.
   Apache::SharedMem object creation missing rootkey parameter. at
  t/assign.t
   line 14
   dubious
   Test returned status 2 (wstat 512, 0x200)
   DIED. FAILED tests 2-8
   Failed 7/8 tests, 12.50% okay
   t/import..1..5
   ok 1
   ok 2
   ok 3
   ok 4
   ok 5
   ok
   t/smartlock...1..16
   ok 1
   Use of uninitialized value at blib/lib/Apache/SharedMem.pm line 1073.
   Use of uninitialized value at blib/lib/Apache/SharedMem.pm line 1075.
   Apache::SharedMem object creation missing rootkey parameter. at
   t/smartlock.t line 14
   dubious
   Test returned status 2 (wstat 512, 0x200)
   DIED. FAILED tests 2-16
   Failed 15/16 tests, 6.25% okay
   t/timedoutlock1..8
   ok 1
   Use of uninitialized value at blib/lib/Apache/SharedMem.pm line 1073.
   Use of uninitialized value at blib/lib/Apache/SharedMem.pm line 1075.
   Apache::SharedMem object creation missing rootkey parameter. at
   t/timedoutlock.t line 14
   dubious
   Test returned status 2 (wstat 512, 0x200)
   DIED. FAILED tests 2-8
   Failed 7/8 tests, 12.50% okay
   t/zdestroy1..3
   Use of uninitialized value at blib/lib/Apache/SharedMem.pm line 1073.
   Use of uninitialized value at blib/lib/Apache/SharedMem.pm line 1075.
   Apache::SharedMem object creation missing rootkey parameter. at
  t/zdestroy.t
   line 14
   dubious
   Test returned status 2 (wstat 512, 0x200)
   DIED. FAILED tests 1-3
   Failed 3/3 tests, 0.00% okay
   Failed Test  Stat Wstat Total Fail  Failed  List of Failed
  

 --
  --
   ---
   t/assign.t  2   512 87  87.50%  2-8
   t/smartlock.t   2   51216   15  93.75%  2-16
   t/timedoutlock.t2   512 87  87.50%  2-8
   t/zdestroy.t2   512 33 100.00%  1-3
   Failed 4/5 test scripts, 20.00% okay. 32/40 subtests failed,
  20.00% okay.
   make: *** [test_dynamic] Error 2
  
   --
   Alexei Barantsev, ISP RAS
   E-mail: [EMAIL PROTECTED]
   ICQ   : 3959207

RE: Apache::SharedMem 0.07 installation problem

2001-10-02 Thread Alexei Barantsev 

Actually, it is strange.

bash$ echo $PWD
/home/barancev
bash$ perl -e 'print $ENV{PWD}'
bash$ perl -e 'print Oops!\n unless exists $ENV{PWD}'
Oops!
bash$

By the way, `env` command does not show PWD variable too.

Somebody khows what the reason can be?

Once again my system configuration is
bash$ uname -a
Linux dallas 2.2.14-5.0 #1 Tue Mar 7 21:07:39 EST 2000 i686 unknown

Looks like it is not mod_perl related topic, sorry for noise.

 -Original Message-
 From: Olivier Poitrey [mailto:[EMAIL PROTECTED]]
 Sent: Tuesday, October 02, 2001 1:05 PM
 To: [EMAIL PROTECTED]; Modperl List
 Subject: Re: Apache::SharedMem 0.07 installation problem
 
 
 Ok, the test failed because your $ENV{PWD} is empty, I'll trap 
 this error on
 0.08. By the way,
 why is your $ENV{PWD} empty ?
 
 regards
 
 --
 __
 _
  O  l  i  v  i  e  rP  o  i  t  r  e  y
 
 USA disaster support http://www.osdn.com/911.shtml*
 
 - Original Message -
 From: Alexei Barantsev [EMAIL PROTECTED]
 To: Olivier Poitrey [EMAIL PROTECTED]; Modperl List
 [EMAIL PROTECTED]
 Sent: Tuesday, October 02, 2001 10:50 AM
 Subject: RE: Apache::SharedMem 0.07 installation problem
 
 
  Nothing, sir! :) The matter is that $ENV{PWD} is empty.
 
  Neither works this one:
  $ perl -MIPC::SysV -e 'print IPC::SysV::ftok(`pwd`, $), \n'
 
  This variant works though:
  $ perl -MIPC::SysV -e 'chomp($pwd = `pwd`); print IPC::SysV::ftok($pwd,
 $),
  \n'
  -1760399103