linux-kernel - Re: [PATCH 0/9 v3] locks: avoid thundering-herd wake-ups

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Message-ID: <2dfa9cf81411feafa2c7426be0e1363945dd388f.camel@suse.de>
Date:   Thu, 25 Oct 2018 21:27:43 +0200
From:   Martin Wilck <mwilck@...e.de>
To:     "J. Bruce Fields" <bfields@...ldses.org>,
        NeilBrown <neilb@...e.com>
Cc:     Jeff Layton <jlayton@...nel.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        linux-fsdevel@...r.kernel.org,
        Frank Filz <ffilzlnx@...dspring.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/9 v3] locks: avoid thundering-herd wake-ups

On Thu, 2018-10-25 at 12:04 -0400, J. Bruce Fields wrote:
> On Wed, Oct 24, 2018 at 09:43:54AM +1100, NeilBrown wrote:
> > This took longer that I had wanted, due to various reasons - sorry.
> > And I'm now posting it in a merge window, which is not ideal.  I
> > don't
> > expect it to be included in this merge window and I won't be at all
> > impatient for review, but I didn't want to delay it further.
> 
> Yes, apologies, I've been looking forward to finding out how this
> turned
> out, but I'd like to track down a bug or two and also review Olga's
> copy
> patches....  Bug me if I haven't gotten to this in a week or two.
> 
> I'd also be really interested in any details of the performance
> experiments that you could share.

I pushed my test code to https://github.com/mwilck/lockscale.

Cheers,
Martin