[ic] Upgrade to Interchange-5.7.4 performance issues

[Stefan Hornburg (Racke)]

Bill Carr wrote:
> On Mar 22, 2010, at 4:11 PM, Peter wrote:
> 
>> On 23/03/10 03:51, Bill Carr wrote:
>>> I just tried again with vlink and I still get the performance
>>> problems. I posted a new strace here
>>> http://www.bottlenose-wine.com/userfiles/strace.txt. Anymore ideas? I
>>> sure don't want to be orphaned off in 5.4.0 land forever.
>>> From the looks of it, you're using your system perl which is 5.10.1.  If
>> this is a threaded perl it could explain some of the slowdown.  Can you
>> try compiling your own perl 5.8.9 and see how it works out?  There's
>> some directions at:
>> http://cloud.github.com/downloads/pajamian/stuff/Rackspace_Interchange_Setup.html
>>
>> Scroll down to "Section 10: Compiling Your own Perl".
> I don't think this perl is threaded:
> 
> www at pimmscup:~$ perl -V
> Summary of my perl5 (revision 5 version 10 subversion 1) configuration:
>    
>   Platform:
>     osname=linux, osvers=2.6.32-trunk-amd64, archname=x86_64-linux
>     uname='linux pimmscup 2.6.32-trunk-amd64 #1 smp sun jan 10 22:40:40 utc 2010 x86_64 gnulinux '
>     config_args='-des -Dprefix=/usr'
>     hint=recommended, useposix=true, d_sigaction=define
>     useithreads=undef, usemultiplicity=undef
>     useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
>     use64bitint=define, use64bitall=define, uselongdouble=undef
>     usemymalloc=n, bincompat5005=undef
>   Compiler:
>     cc='cc', ccflags ='-fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
>     optimize='-O2',
>     cppflags='-fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include'
>     ccversion='', gccversion='4.3.4', gccosandvers=''
>     intsize=4, longsize=8, ptrsize=8, doublesize=8, byteorder=12345678
>     d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16
>     ivtype='long', ivsize=8, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
>     alignbytes=8, prototype=define
>   Linker and Libraries:
>     ld='cc', ldflags =' -fstack-protector -L/usr/local/lib'
>     libpth=/usr/local/lib /lib /usr/lib /lib64 /usr/lib64
>     libs=-lnsl -ldb -ldl -lm -lcrypt -lutil -lc
>     perllibs=-lnsl -ldl -lm -lcrypt -lutil -lc
>     libc=/lib/libc-2.10.2.so, so=so, useshrplib=false, libperl=libperl.a
>     gnulibc_version='2.10.2'
>   Dynamic Linking:
>     dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
>     cccdlflags='-fPIC', lddlflags='-shared -O2 -L/usr/local/lib -fstack-protector'
> 
> 
> Characteristics of this binary (from libperl): 
>   Compile-time options: PERL_DONT_CREATE_GVSV PERL_MALLOC_WRAP USE_64_BIT_ALL
>                         USE_64_BIT_INT USE_LARGE_FILES USE_PERLIO
>   Built under linux
>   Compiled at Feb 11 2010 10:52:46
>   @INC:
>     /usr/lib/perl5/5.10.1/x86_64-linux
>     /usr/lib/perl5/5.10.1
>     /usr/lib/perl5/site_perl/5.10.1/x86_64-linux
>     /usr/lib/perl5/site_perl/5.10.1
>     /usr/lib/perl5/site_perl/5.10.0/x86_64-linux
>     /usr/lib/perl5/site_perl/5.10.0
>     /usr/lib/perl5/site_perl
>     .
> 
> Could 5.8.9 make a difference or do you just want to make sure my perl is not threaded? I think I'm using some features that are only available in > 5.10.

I don't see any massive performance problems as you reported with my Perl 5.10.1 threaded installations,
though it seems Debian's Perl seems to be well maintained :-).

Regards
	Racke

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