Another way to do it is to adjust perl's input behavior slightly, in order to get it to read everything up to "Buffers" in one shot. Then, reset perl's input behavior to read line-by-line again: all that's left is the header's newline, and voila! You've got your data:

my $header = "Buffers";
#
# or do it this way:
# my $header = "Buffers   ID      Position  ID      Position   ID     
+Position";
#

$/ = $header;

my $junk = <DATA>;

$/ = "\n";

my $header_end_of_line = <DATA>;

my $data = <DATA>;

print $data;



__DATA__

DDR -- Running --

  # Event  Snoopy   Snoopy   Replay   Replay   Current  Current
  Buffers   ID      Position  ID      Position   ID     Position
  1024     1667721  2975e7c  1667717  6d44e10  1667721  2982000
  1023     1667720  2975e7b  1667716  6d44e09  1667720  2981999
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