Heads-up: new parallel I/O manager merged

Don Stewart dons00 at gmail.com
Sun Feb 24 17:34:34 CET 2013

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


etc etc.

On Tue, Feb 12, 2013 at 7:02 AM, Johan Tibell <johan.tibell at gmail.com>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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