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This queue is for tickets about the Storable CPAN distribution.

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The Basics
Id: 18005
Status: open
Priority: 0/
Queue: Storable

People
Owner: Nobody in particular
Requestors: maxim [...] comm2000.it
Cc:
AdminCc:

Bug Information
Severity: (no value)
Broken in: 2.15
Fixed in: (no value)



Subject: performance issue with version 2.15
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On my platform (see below), the following code use Storable; print $Storable::VERSION, "\n"; my @data = map { [ ( 0 .. 10 ) ] } ( 0 .. 26000 ); warn "storing ", int @data, "\n"; Storable::lock_store(\@data, ".temp"); takes less than 2 seconds when run under 2.13, and more than 30 when run under version 3.15. $ time perl test.pl 2.13 storing 26001 real 0m1.202s user 0m1.058s sys 0m0.063s $time perl -I/root/.cpan/build/Storable-2.15/blib/lib/ -I/root/.cpan/build/Storable-2.15/blib/arch/ test.pl 2.15 storing 26001 real 0m37.989s user 0m35.722s sys 0m0.051s Platform details: $ uname -a Linux afton 2.6.11-1 #1 Tue Mar 8 12:17:10 CET 2005 i686 GNU/Linux $ perl -V Summary of my perl5 (revision 5 version 8 subversion 4) configuration: Platform: osname=linux, osvers=2.4.27-ti1211, archname=i386-linux-thread-multi uname='linux kosh 2.4.27-ti1211 #1 sun sep 19 18:17:45 est 2004 i686 gnulinux ' config_args='-Dusethreads -Duselargefiles -Dccflags=-DDEBIAN -Dcccdlflags=-fPIC -Darchname=i386-linux -Dprefix=/usr -Dprivlib=/usr/share/perl/5.8 -Darchlib=/usr/lib/perl/5.8 -Dvendorprefix=/usr -Dvendorlib=/usr/share/perl5 -Dvendorarch=/usr/lib/perl5 -Dsiteprefix=/usr/local -Dsitelib=/usr/local/share/perl/5.8.4 -Dsitearch=/usr/local/lib/perl/5.8.4 -Dman1dir=/usr/share/man/man1 -Dman3dir=/usr/share/man/man3 -Dsiteman1dir=/usr/local/man/man1 -Dsiteman3dir=/usr/local/man/man3 -Dman1ext=1 -Dman3ext=3perl -Dpager=/usr/bin/sensible-pager -Uafs -Ud_csh -Uusesfio -Uusenm -Duseshrplib -Dlibperl=libperl.so.5.8.4 -Dd_dosuid -des' hint=recommended, useposix=true, d_sigaction=define usethreads=define use5005threads=undef useithreads=define usemultiplicity=define useperlio=define d_sfio=undef uselargefiles=define usesocks=undef use64bitint=undef use64bitall=undef uselongdouble=undef usemymalloc=n, bincompat5005=undef Compiler: cc='cc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS -DDEBIAN -fno-strict-aliasing -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64', optimize='-O2', cppflags='-D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS -DDEBIAN -fno-strict-aliasing -I/usr/local/include' ccversion='', gccversion='3.3.5 (Debian 1:3.3.5-9)', gccosandvers='' intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234 d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12 ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8 alignbytes=4, prototype=define Linker and Libraries: ld='cc', ldflags =' -L/usr/local/lib' libpth=/usr/local/lib /lib /usr/lib libs=-lgdbm -lgdbm_compat -ldb -ldl -lm -lpthread -lc -lcrypt perllibs=-ldl -lm -lpthread -lc -lcrypt libc=/lib/libc-2.3.2.so, so=so, useshrplib=true, libperl=libperl.so.5.8.4 gnulibc_version='2.3.2' Dynamic Linking: dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E' cccdlflags='-fPIC', lddlflags='-shared -L/usr/local/lib' Characteristics of this binary (from libperl): Compile-time options: MULTIPLICITY USE_ITHREADS USE_LARGE_FILES PERL_IMPLICIT_CONTEXT Built under linux Compiled at Mar 8 2005 19:51:48 @INC: /etc/perl /usr/local/lib/perl/5.8.4 /usr/local/share/perl/5.8.4 /usr/lib/perl5 /usr/share/perl5 /usr/lib/perl/5.8 /usr/share/perl/5.8 /usr/local/lib/site_perl .
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I recently "upgraded" from v2.12 to v2.16 and am seeing horrible performance there as well. I use Storable to save large data caches (50-100 MB) and v2.16 seems to write only about 20 kB per second! This is on WinXP Pro with SP2. Downgrading to v2.14 fixed the performance issue.


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