On Thu, Apr 24, 2014 at 02:57:40PM -0400, Matthew Wilcox wrote: > By calling the device driver to write the page directly, we avoid > allocating a BIO, which allows us to free memory without allocating > memory.
I got handed some performance numbers last night! Next time you're updating the patch description, please use: By calling the device driver to write the page directly, we avoid allocating a BIO, which allows us to free memory without allocating memory. When running a swap-heavy benchmark, system time is reduced by about 20%. Tested-by: Dheeraj Reddy <[email protected]> Signed-off-by: Matthew Wilcox <[email protected]> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
