linux-kernel - Re: Tux3 Report: How fast can we fsync?

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Message-ID: <64c18eff-355a-454d-bacf-24362fe61c11@phunq.net>
Date:	Tue, 28 Apr 2015 23:56:11 -0700
From:	Daniel Phillips <daniel@...nq.net>
To:	Richard Weinberger <richard.weinberger@...il.com>
Cc:	Mike Galbraith <umgwanakikbuti@...il.com>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>, <tux3@...3.org>,
	Theodore Ts'o <tytso@....edu>
Subject: Re: Tux3 Report: How fast can we fsync?

On Tuesday, April 28, 2015 11:20:08 PM PDT, Richard Weinberger wrote:
> On Wed, Apr 29, 2015 at 8:01 AM, Daniel Phillips <daniel@...nq.net> wrote:
>> On Tuesday, April 28, 2015 7:21:11 PM PDT, Mike Galbraith wrote: ...
>
> Where can I find the fsync code?
> IOW how to reproduce your results? :)

Hi Richard,

If you can bear with us, the latest code needs to make it through
Hirofumi's QA before it appears on github. If you are impatient, the
fsync in current head benchmarks pretty well too, I don't think I need
to apologize for it.

In any case, you build userspace tools from the hirofumi-user branch,
by doing make in fs/tux3/user. This builds the tux3 command, and you
make a filesystem with "tux3 mkfs <volume>".

You can build the kernel including Tux3 from the hirofumi branch, or
the hirofumi-user branch, providing you do make clean SUBDIRS=fs/tux3
before building the kernel or make clean in tux3/user before building
the user space, so user and kernel .o files don't collide. A little
awkward indeed, but still it is pretty cool that we can even build
that code for user space.

The wiki might be helpful:

   https://github.com/OGAWAHirofumi/linux-tux3/wiki
   https://github.com/OGAWAHirofumi/linux-tux3/wiki/Compile

This is current, except you want to build from hirofumi and hirofumi-user 
rather than master and user because the latter is a bit old.

Regards,

Daniel

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