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Date: Tue, 30 Jul 2013 14:28:20 -0700 From: Andrew Morton <akpm@...ux-foundation.org> To: Dave Kleikamp <dave.kleikamp@...cle.com> Cc: linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org, "Maxim V. Patlasov" <mpatlasov@...allels.com>, Zach Brown <zab@...bo.net> Subject: Re: [PATCH V8 00/33] loop: Issue O_DIRECT aio using bio_vec On Thu, 25 Jul 2013 12:50:26 -0500 Dave Kleikamp <dave.kleikamp@...cle.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? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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