linux-kernel - Re: [PATCH 0/5] v2: block subsystem refcounter conversions

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Message-ID: <20170421152241.q45w3ckjax5xiddq@hirez.programming.kicks-ass.net>
Date:   Fri, 21 Apr 2017 17:22:41 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Jens Axboe <axboe@...nel.dk>
Cc:     "Reshetova, Elena" <elena.reshetova@...el.com>,
        Eric Biggers <ebiggers3@...il.com>,
        Kees Cook <keescook@...omium.org>,
        Christoph Hellwig <hch@...radead.org>,
        "james.bottomley@...senpartnership.com" 
        <james.bottomley@...senpartnership.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-block@...r.kernel.org" <linux-block@...r.kernel.org>,
        "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
        "linux-btrfs@...r.kernel.org" <linux-btrfs@...r.kernel.org>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "fujita.tomonori@....ntt.co.jp" <fujita.tomonori@....ntt.co.jp>,
        "mingo@...hat.com" <mingo@...hat.com>, "clm@...com" <clm@...com>,
        "jbacik@...com" <jbacik@...com>,
        "dsterba@...e.com" <dsterba@...e.com>
Subject: Re: [PATCH 0/5] v2: block subsystem refcounter conversions

On Fri, Apr 21, 2017 at 08:03:13AM -0600, Jens Axboe wrote:
> You have it so easy - the code is completely standalone, building a
> small test framework around it and measuring performance in _user space_
> is trivial.

Something like this you mean:

  https://lkml.kernel.org/r/20170322165144.dtidvvbxey7w5pbd@hirez.programming.kicks-ass.net