$InfoData = sprintf("$targetname Avg.Time= $o_target");
$PerfData = sprintf(
    "value1=%f value2=%f value3=%f",
    $value1,
    $value2,
    $value3
);
push @results, {
    InfoData => $InfoData,
    PerfData => $PerfData,
);

##</code><code>##

foreach (@results) {
    my $info_data = $_->{InfoData};
    my $perf_data = $_->{PerfData};
    
    # Do whatever you need to...
}

# Or maybe:
my $arb_info = $results[$arbitrary_idx]->{InfoData};
my $arb_perf = $results[$arbitrary_idx]->{PerfData};