From: Mike Krinkin <krinkin.m.u@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: axboe@kernel.dk, hch@lst.de, kmo@daterainc.com, dmonakhov@openvz.org
Subject: submit bio directly from userspace
Date: Wed, 7 Oct 2015 17:42:53 +0300 [thread overview]
Message-ID: <20151007144253.GA26518@kmu-tp-x230> (raw)
Hi,
i'm developing block layer workload simulator/player and need to
generate bios as close as possible to the ones in original workload.
To play workload i employ aio + O_DIRECT, but all IOs end up as bios
with SYNC flag set. So i wonder is there any way to control bios
flags from userspace or, maybe, any other options to generate
workload from userspace except aio + O_DIRECT with more precise
control over bio flags?
next reply other threads:[~2015-10-07 14:42 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-07 14:42 Mike Krinkin [this message]
2015-10-09 11:41 ` submit bio directly from userspace Dmitry Monakhov
2015-10-09 14:32 ` Jens Axboe
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