The data above it comes from a yield return, although parallel.foreach was
still faster than doing it all in line. List was much much faster,
shaved 2000ms off of the process.
I read some of the books/articles mentioned and i've been following the
parallel blog for ages. But that was back when 4.0
Here is a very good (but very old) presentation about the PFX:
http://blogesh.files.wordpress.com/2009/05/getting-the-most-out-of-pfx.pptx
Slide 33 has the partitioning details.
On Tue, Jun 25, 2013 at 4:45 PM, Corneliu I. Tusnea
wrote:
> David/Greg,
>
> Ihe IEnumerable is not an issue with Para
David/Greg,
Ihe IEnumerable is not an issue with Parallel.ForEach. The PFX library will
look for few other interfaces for your object and decide the partitioning
strategy based on that.
There are multiple paritioners that will be picked up based on your source:
Range (used for IList), Chunk (used
>
> 1. Don't use IEnumerable and Parallel.ForEach, List is much faster.
>
I don't have the bigger picture here, but IEnumerable and Parallel.ForEach
go together like pancakes and ice cream. I'm even getting into the habit
these days of making public methods that return collections prefer to
retur
Hi, I found out what was causing my problems.
I replaced the outer List with a ConcurentBag and everything is
working fine.
3 Little Tips.
1. Don't use IEnumerable and Parallel.ForEach, List is much faster.
2. Use ConcurrentBag for your results, or one of the other objects in
the concurent nam
I don't know enough about Parallel.ForEach to debug this, although I
do think you existing code would need a thead-safe .Add at least.
However, could you change this to:
ICollection data = GetCustomers();
var customers = data.AsParallel().select(
(source) =>
{
DisplayableCustomer destinatio
Oops sent too quickly.
ICollection data = GetCustomers();
Parallel.ForEach(
data,
(source) =>
{
DisplayableCustomer destination = new DisplayableCustomer();
Mapper.Map(source, destination);
customers.Add(destination);
});
later on I order the data.
var sorted = from c in customer
Hi guys,
I'm having a very wierd problem.
I've got a collection that I map like this
ICollection data = GetCustomers();
Parallel.ForEach(
data,
(source) =>
{
Davy,
The US Congress voted Pizza sauce a vegetable. Don't even try to convince
me of anything in the states is sane any more!
