It's as if the arrays aren't getting garbage collected, but I've examined the reference count just prior to the reference leaving scope and it only has one reference (using Devel::Peek Dump).

Oh look, a reference count of 1 :) 

my @one;
my @two;
my @three;
push @two, \@three;
push @three,\@two;
push @one, \@two, \@three;
use Devel::Peek;
Dump(\@one );
__END__
SV = RV(0x3e8a90) at 0x3e8a84
  REFCNT = 1
  FLAGS = (TEMP,ROK)
  RV = 0x98a404
  SV = PVAV(0x3e995c) at 0x98a404
    REFCNT = 2
    FLAGS = (PADMY)
    ARRAY = 0x997dec
    FILL = 1
    MAX = 3
    ARYLEN = 0x0
    FLAGS = (REAL)
    Elt No. 0
    SV = RV(0x98a4b0) at 0x98a4a4
      REFCNT = 1
      FLAGS = (ROK)
      RV = 0x98a424
      SV = PVAV(0x3e9b84) at 0x98a424
        REFCNT = 3
        FLAGS = (PADMY)
        ARRAY = 0x9b1d7c
        FILL = 0
        MAX = 3
        ARYLEN = 0x0
        FLAGS = (REAL)
        Elt No. 0
        SV = RV(0x3e8b30) at 0x3e8b24
          REFCNT = 1
          FLAGS = (ROK)
          RV = 0x98a444
    Elt No. 1
    SV = RV(0x3e8970) at 0x3e8964
      REFCNT = 1
      FLAGS = (ROK)
      RV = 0x98a444
      SV = PVAV(0x3e9b9c) at 0x98a444
        REFCNT = 3
        FLAGS = (PADMY)
        ARRAY = 0x994b2c
        FILL = 0
        MAX = 3
        ARYLEN = 0x0
        FLAGS = (REAL)
        Elt No. 0
        SV = RV(0x3e8b80) at 0x3e8b74
          REFCNT = 1
          FLAGS = (ROK)
          RV = 0x98a424

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In reply to Re: Running out of Memory by Anonymous Monk
in thread Running out of Memory by nwboy74

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