From: "Elliott, Robert (Servers)" <elliott@hpe.com>
To: 'Arthur Shau' <arthurcshau@gmail.com>,
"fio@vger.kernel.org" <fio@vger.kernel.org>
Subject: RE: Question about rwmixread/rwmixwrite implementation
Date: Fri, 18 Jun 2021 02:31:22 +0000 [thread overview]
Message-ID: <TU4PR8401MB1055D36322B806ABF9C05AF4AB0D9@TU4PR8401MB1055.NAMPRD84.PROD.OUTLOOK.COM> (raw)
In-Reply-To: <CA+_dZJifi4+5GX1D=HELXrNkniVgVMnJgbYX+PMhuZ0s0ZiQFA@mail.gmail.com>
> -----Original Message-----
> From: Arthur Shau <arthurcshau@gmail.com>
> Sent: Thursday, June 17, 2021 8:09 PM
> To: fio@vger.kernel.org
> Subject: Question about rwmixread/rwmixwrite implementation
>
> I have a basic question about how the read/write ratio is enforced in
> fio. I am new to fio, and I am not well versed enough in C to dig into
> the source code myself, so I am asking here.
>
...
> If you could also point me to where this logic is happening in the
> source code, that would also be immensely helpful. Thanks so much!
The HOWTO file sometimes has more information than the manpage, so
that's the first place to check.
To find the applicable source code, run:
grep rwmix *.[ch]
That shows that the io handling code in io_u.c is where decisions
are made based on that argument, particularly in the rate_ddir() and
get_rw_ddir() functions.
prev parent reply other threads:[~2021-06-18 2:33 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-18 1:08 Question about rwmixread/rwmixwrite implementation Arthur Shau
2021-06-18 2:31 ` Elliott, Robert (Servers) [this message]
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