Re: Heads-up: new parallel I/O manager merged

We should really publish a blog post about this. On Sun, Feb 24, 2013 at 8:34 AM, Don Stewart wrote:

Do we get some benchmarks -- 32x better req/sec would be a good smackdown of some recent posts floating around.

http://techblog.safaribooksonline.com/2013/02/22/go-as-an-alternative-to-nod...

etc etc.

On Tue, Feb 12, 2013 at 7:02 AM, Johan Tibell wrote:

...

Hi,

I've merged the new parallel I/O manager that Andreas Voellmy and Kazu Yamamoto have been working on. The new parallel I/O manager scales much better than the current one*: the number of requests per second scales almost linearly up to 32 cores I believe. Perhaps Andreas could post the numbers.

If you see any bugs that you think are related to the new I/O manager, please let Andreas and Kazu know.

* The current one (which replaced an even earlier one) scaled well in the number of open file descriptors and performed better than the I/O manager it replaced, but it didn't scale well to multiple cores.

Cheers, Johan

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