FILL = 999 MAX = 999 #### FILL = 999 MAX = 1021 #### SV *make_aoa_c( int n_rows, int n_cols ) { int i, j; char *foo = "foo"; AV *table = newAV(); av_extend(table, n_rows-1); /* <---------- */ for ( i = 0; i < n_rows; ++i ) { AV *row = newAV(); av_extend(row, n_cols-1); /* <---------- */ for ( j = 0; j < n_cols; ++j ) { av_push( row, newSVpv( foo, 0 ) ); } av_push( table, newRV_noinc( row ) ); } return newRV_noinc( table ); } #### FILL = 999 MAX = 999 #### $ perl test_aoa.pl 1: 78688 (184871 us) 2: 78696 (298376 us) 3: 78696 (196999 us) 4: 78696 (204391 us) 5: 78696 (225786 us) $ perl test_aoa.pl use_xs 1: 78604 (321481 us) 2: 78616 (360377 us) 3: 78616 (219468 us) 4: 78616 (211587 us) 5: 78616 (209231 us)