my $str = "SNMPv2-MIB::sysUpTime.0 = Timeticks: (2137215391) 247 days, 8:42:33.91\n";

my @bits = split ' ', $str;

print "\$bits[$_] = '$bits[$_]'\n" for 0..$#bits;

print join ' ', 'Split:', @bits[4..6], "\n";

# alternatively fixing the RE ....
print "RE: $1 | $2\n" if $str =~ m|\)\s+(\d[\w ]+),\s+([0-9:\.]+)$|;


__DATA__
$bits[0] = 'SNMPv2-MIB::sysUpTime.0'
$bits[1] = '='
$bits[2] = 'Timeticks:'
$bits[3] = '(2137215391)'
$bits[4] = '247'
$bits[5] = 'days,'
$bits[6] = '8:42:33.91'
Split: 247 days, 8:42:33.91
RE: 247 days | 8:42:33.91