Date: Wed, 4 Jan 2017 18:51:42 +0000 From: Gary Palmer <gpalmer@freebsd.org> To: Freddie Cash <fjwcash@gmail.com> Cc: FreeBSD Filesystems <freebsd-fs@freebsd.org> Subject: Re: Check status of background destroy Message-ID: <20170104185142.GB95857@in-addr.com> In-Reply-To: <CAOjFWZ55AOeURtzeOZX_oR%2BJ=exm-9pUnHi9%2BSFcVVNkxm2n3A@mail.gmail.com> References: <CAOjFWZ4S42mebL15iT8=TLcfvabBWeUdLDzi_d3WfhKTpuGdOw@mail.gmail.com> <CAGMYy3uU6bUfjufXFQXbNT2krnRnOj-YC2069ep_2tNjDJuw4A@mail.gmail.com> <CAOjFWZ55AOeURtzeOZX_oR%2BJ=exm-9pUnHi9%2BSFcVVNkxm2n3A@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Wed, Jan 04, 2017 at 10:48:28AM -0800, Freddie Cash wrote: > On Wed, Jan 4, 2017 at 10:43 AM, Xin LI <delphij@gmail.com> wrote: > > > Try setting vfs.zfs.free_max_blocks to 100000 (this is an arbitrary > > number, can be larger, limits maximum blocks being freed per txg; see > > https://svnweb.freebsd.org/base?view=revision&revision=271532 for > > details). > > > > You can inspect the progress with DTrace by looking at zfs-dbgmsg. > > > > ???Forgot to mention, this server is running 64-bit FreeBSD 9.3-p5.??? That > sysctl OID doesn't exist. > > ???From the sounds of the comments on that revision, this would probable be a > useful feature to have. > > I'll have to see about upgrading this system (there's a separate pool for > the OS), I guess. > > Which FreeBSD version(s) include that feature? Would 10.3 be okay, or > would I have to go all the way to 11.0? The sysctl is in 10.3 $ uname -r 10.3-RELEASE-p15 $ sysctl -d vfs.zfs.free_max_blocks vfs.zfs.free_max_blocks: Maximum number of blocks to free in one TXG $ sysctl vfs.zfs.free_max_blocks vfs.zfs.free_max_blocks: 18446744073709551615 $ Regards, Gary
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20170104185142.GB95857>