Messages in this thread | | | From | Jeff Moyer <> | Subject | Re: [PATCH] block_dev: implement readpages() to optimize sequential read | Date | Thu, 17 Jul 2014 14:31:56 -0400 |
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Akinobu Mita <akinobu.mita@gmail.com> writes:
> Sequential read from a block device is expected to be equal or faster > than from the file on a filesystem. But it is not correct due to the > lack of effective readpages() in the address space operations for > block device.
Ah, a trip down memory lane. ;-) Here's a thread showing issues with the last time this was proposed (by me, incidentally):
https://lkml.org/lkml/2009/6/2/480
At the very least, we need to see numbers on a real device, and see it booted on something with >4k page size before taking this back in.
Cheers, Jeff
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