Date: Wed, 16 Sep 2015 18:40:49 -0700 From: Matthew Ahrens <mahrens@delphix.com> To: freebsd-fs <freebsd-fs@freebsd.org> Subject: Re: changing space map blksz, commit from illumos Message-ID: <CAJjvXiFgXm-FKH38itKR0GOEEqA%2BU9GeaOqscbV3UaXqbE5wTg@mail.gmail.com> In-Reply-To: <CAJjvXiGKBY_45Kk%2BwBC6wwkw0zprbLRReHQS8rYSwsAc8h6%2BSA@mail.gmail.com> References: <CAJjvXiGKBY_45Kk%2BwBC6wwkw0zprbLRReHQS8rYSwsAc8h6%2BSA@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Xin pointed out that this change is in head. The problem is that I was looking at release/10.1.0. Looks like it's already in releng/10.2 so that's great, sorry for the noise! --matt On Wed, Sep 16, 2015 at 6:09 PM, Matthew Ahrens <mahrens@delphix.com> wrote: > I would like to change the space map block size on FreeBSD, to improve > performance on a system with very large vdevs. This was made possible in > illumos (exactly!) a year ago by the commit below. Does anyone know if > there's a technical reason that this was not ported to FreeBSD? If not, it > would be great if someone wants to pick it up, otherwise I'll try to do so > when I have time. > > commit b1be2892dd07cf9a97d47ad06334cdc879196aaf > Author: Matthew Ahrens <mahrens@delphix.com> > Date: Tue Sep 16 11:53:58 2014 -0800 > > 5164 space_map_max_blksz causes panic, does not work > 5165 zdb fails assertion when run on pool with recently-enabled > spacemap_histogram feature > Reviewed by: Christopher Siden <christopher.siden@delphix.com> > Reviewed by: George Wilson <george.wilson@delphix.com> > Reviewed by: Saso Kiselkov <skiselkov.ml@gmail.com> > Approved by: Dan McDonald <danmcd@omniti.com> > > --matt >
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CAJjvXiFgXm-FKH38itKR0GOEEqA%2BU9GeaOqscbV3UaXqbE5wTg>