stupid simple array allocation benchmark from https://github.com/mapnik/mapnik/blob/master/benchmark/test_array_allocation.cpp

array-alloc.txt

$ ./benchmark/out/test_array_allocation --threads 10 --iterations 10000
calloc:                                    t:10 i:10000      1620 milliseconds
malloc/memcpy:                             t:10 i:10000      1610 milliseconds
malloc/memset:                             t:10 i:10000      2360 milliseconds
new:                                       t:10 i:10000      2000 milliseconds
vector(N):                                 t:10 i:10000      5900 milliseconds
vector/resize:                             t:10 i:10000      4240 milliseconds
vector/assign:                             t:10 i:10000      5950 milliseconds
std::string range:                         t:10 i:10000      3110 milliseconds
std::string &[0]:                          t:10 i:10000      1680 milliseconds
valarray:                                  t:10 i:10000      5600 milliseconds
static_vector:                             t:10 i:10000      1610 milliseconds