Re: Why is O_DSYNC on linux so slow / what's wrong with my SSD?

From: Christoph Hellwig
Date: Wed Nov 20 2013 - 07:54:57 EST

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On Wed, Nov 20, 2013 at 01:12:43PM +0100, Stefan Priebe - Profihost AG wrote:
> Can anyone explain to me why O_DSYNC for my app on linux is so slow?

Because FreeBSD ignores O_DSYNC on block devices, it never sends a FLUSH
to the device.

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Next message: Andy Shevchenko: "Re: [PATCH v1.2] gpiolib: append SFI helpers for GPIO API"
Previous message: Kirill A. Shutemov: "Re: [PATCH 34/34] mm: dynamically allocate page->ptl if it cannot beembedded to struct page"
In reply to: Stefan Priebe - Profihost AG: "Why is O_DSYNC on linux so slow / what's wrong with my SSD?"
Next in thread: Chinmay V S: "Re: Why is O_DSYNC on linux so slow / what's wrong with my SSD?"
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