Date: Fri, 15 Mar 2013 07:58:50 -0700 From: Freddie Cash <fjwcash@gmail.com> To: Andriy Gapon <avg@freebsd.org> Cc: FreeBSD Filesystems <freebsd-fs@freebsd.org> Subject: Re: Strange slowdown when cache devices enabled in ZFS Message-ID: <CAOjFWZ5e2t0Y_KOxm%2BGhX%2BzXNPfOXb8HKF4uU%2BQ%2BN5eWQqLtdg@mail.gmail.com> In-Reply-To: <51430744.6020004@FreeBSD.org> References: <CAOjFWZ6Q=Vs3P-kfGysLzSbw4CnfrJkMEka4AqfSrQJFZDP_qw@mail.gmail.com> <51430744.6020004@FreeBSD.org>
next in thread | previous in thread | raw e-mail | index | archive | help
How does one do that? I've never done that before. Point me to some docs, and I'll see what I can find out. On Fri, Mar 15, 2013 at 4:34 AM, Andriy Gapon <avg@freebsd.org> wrote: > on 14/03/2013 20:13 Freddie Cash said the following: > > the l2arc_feed_thread of zfskern will spin until it takes up 100% > > of a CPU core > > If you see a thread taking 100% where it shouldn't, then just profile it > and > actually see what it's doing. > > -- > Andriy Gapon > -- Freddie Cash fjwcash@gmail.com
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CAOjFWZ5e2t0Y_KOxm%2BGhX%2BzXNPfOXb8HKF4uU%2BQ%2BN5eWQqLtdg>