Rapid question about concurrent_vector.

[isnork]

Hi,

When declaring a concurrent_vector, i.e:

[bash]tbb::concurrent_vector v;[/bash]

if the number of elementes that the vector will contain is known beforehand, using

[bash]v.reserve( size );[/bash]

will improve the performance?

Thanks in advance.

[RafSchietekat · Accepted solution]

Using reserve() generally seems to be a good idea. For tbb::concurrent_vector, it would appear to improve access time as well as growth time, but I have not analysed or measured this.

[isnork]

Thank you Raf!