Passing large or complex data structures to threads

[Joseph Rushton Wakeling]

On 05/24/2013 05:59 PM, Ali Çehreli wrote:
> The following simple example uses mutable data but it should work with 'const' too.

Limiting ourselves to read-only, won't there still be a slowdown caused by
multiple threads trying to access the same data?  The particular case I have
will involve continuous reading from the data concerned.