comment on

Hi!

I have to parse a 50MB file and HAVE TO put the WHOLE file in a dynamic created structure (pointers to arrays of pointers to arrays...;-) into memory. Well it's hard enough that the memory consumption is near to 19 times the filesize > 950MB, but the real hard problem is that the perl script terminiates with "Out of memory!" statment.

So this would not be surprise if i would have not more than ca 1GB of RAM but the machine has 14GB free memory (and NO the GB is no typo ;-)

what i have checked:
====================
* enough free memory (physical and swap)
* I also have ulimitied access rights to the memory.
* Compiling perl with the the -DPACK_MALLOC and -DTWO_POT_OPTIMIZE opions also doesn't help!
* The program crashes every time at the same memory consumption, not related to the input file!
* because of the things I will have to do with the data it would be very complicated handle smaler parts of the file at a time...

so the question(s):
===================
* is it a perl bug? or is there a comiler/runtime option i can set that more memory can be used?
* any other suggestions?

info:
=====

$>uname -a
HP-UX edsserv3 B.11.00 U 9000/800 613309356 unlimited-user license
$>ulimit -a
time(seconds)        unlimited
file(blocks)         unlimited
data(kbytes)         unlimited
stack(kbytes)        147456
memory(kbytes)       unlimited
coredump(blocks)     4194303
$>perl -V
Summary of my perl5 (revision 5.0 version 6 subversion 0) configuratio
+n:
  Platform:
    osname=hpux, osvers=11.00, archname=PA-RISC2.0
    uname='hp-ux hostname b.11.00 u 9000800 613309356 unlimited-user l
+icense '
    config_args=''
    hint=recommended, useposix=true, d_sigaction=define
    usethreads=undef use5005threads=undef useithreads=undef usemultipl
+icity=undef
    useperlio=undef d_sfio=undef uselargefiles=define 
    use64bitint=undef use64bitall=undef uselongdouble=undef usesocks=u
+ndef
  Compiler:
    cc='cc', optimize='-O +Onolimit', gccversion=
    cppflags='-Ae'
    ccflags =' -Ae -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 '
    stdchar='unsigned char', d_stdstdio=define, usevfork=false
    intsize=4, longsize=4, ptrsize=4, doublesize=8
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=1
+6
    ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t',
+ lseeksize=8
    alignbytes=8, usemymalloc=y, prototype=define
  Linker and Libraries:
    ld='ld', ldflags =''
    libpth=/usr/local/lib /lib /usr/lib /usr/ccs/lib
    libs=-lnsl -lnm -lndbm -ldld -lm -lc -lndir -lcrypt -lsec
    libc=/lib/libc.sl, so=sl, useshrplib=false, libperl=libperl.a
  Dynamic Linking:
    dlsrc=dl_hpux.xs, dlext=sl, d_dlsymun=undef, ccdlflags='-Wl,-E -Wl
+,-B,deferred '
    cccdlflags='+z', lddlflags='-b -s -a shared'


Characteristics of this binary (from libperl): 
  Compile-time options: USE_LARGE_FILES
  Built under hpux
  Compiled at Mar  6 2001 18:11:51
  %ENV:
    PERL5LIB=".:/home/ucsab/bin:/hot_work/develop/main/tools"
    PERL_DEBUG_MSTATS="2"
  @INC:
    .
    /home/ucsab/bin
    /hot_work/develop/main/tools
    /opt/perl5/lib/5.6.0/PA-RISC2.0
    /opt/perl5/lib/5.6.0
    /opt/perl5/lib/site_perl/5.6.0/PA-RISC2.0
    /opt/perl5/lib/site_perl/5.6.0
    /opt/perl5/lib/site_perl
    .
$>top
System: hostname                                  Tue Feb 10 07:31:39 
+2004
Load averages: 0.57, 0.52, 0.47
250 processes: 245 sleeping, 5 running
Cpu states:
CPU   LOAD   USER   NICE    SYS   IDLE  BLOCK  SWAIT   INTR   SSYS
 0    0.45   1.0%   0.0%   4.0%  95.0%   0.0%   0.0%   0.0%   0.0%
 1    0.72   9.1%   0.0%   7.3%  83.5%   0.0%   0.0%   0.0%   0.0%
 2    1.00 100.0%   0.0%   0.0%   0.0%   0.0%   0.0%   0.0%   0.0%
 3    0.52  23.4%   0.0%   4.2%  72.4%   0.0%   0.0%   0.0%   0.0%
 4    0.43  11.5%   0.0%  10.9%  77.6%   0.0%   0.0%   0.0%   0.0%
 5    0.41   9.5%   0.0%   3.6%  86.9%   0.0%   0.0%   0.0%   0.0%
 6    0.41   3.0%   0.0%   6.7%  90.3%   0.0%   0.0%   0.0%   0.0%
 7    0.64   8.3%   0.0%   3.4%  88.3%   0.0%   0.0%   0.0%   0.0%
---   ----  -----  -----  -----  -----  -----  -----  -----  -----
avg   0.57  20.8%   0.0%   5.1%  74.1%   0.0%   0.0%   0.0%   0.0%

Memory: 1373464K (1254588K) real, 1364092K (1263948K) virtual, 1366568
+8K free  Page# 1/32

CPU TTY    PID USERNAME PRI NI   SIZE    RES STATE    TIME %WCPU  %CPU
+ COMMAND
 2 pts/1  8404 ucsab    241 20   905M   898M run      9:24 99.78 99.60
+ perl
 3   ?    8678 ora_rman 241 20 45404K 17088K run      1:00 62.25 61.76
+ oracleOBAA
$>skript.pl
...
Out of memory!
Error: Script <skript.pl> returned exit value <1>!
$>
[download]

Thanks for any advice
alex

Edited by BazB. Added readmore tags.

_{janitored by ybiC: Retitled from "Out of memory! at 950MB with 14GB free RAM!!!"}

In reply to Out Of Memory error at 950MB with 14GB free RAM by aburker

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