| Date | Tue, 30 Jul 2013 14:28:20 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH V8 00/33] loop: Issue O_DIRECT aio using bio_vec |
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On Thu, 25 Jul 2013 12:50:26 -0500 Dave Kleikamp <dave.kleikamp@oracle.com> wrote:
> This patch series adds a kernel interface to fs/aio.c so that kernel code can > issue concurrent asynchronous IO to file systems. It adds an aio command and > file system methods which specify io memory with pages instead of userspace > addresses. > > This series was written to reduce the current overhead loop imposes by > performing synchronus buffered file system IO from a kernel thread. These > patches turn loop into a light weight layer that translates bios into iocbs.
Do you have any performance numbers?
Does anyone care much about loop performance? What's the value here?
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