Date: Sat, 29 Mar 2014 08:07:38 -0500 From: Mark Felder <feld@FreeBSD.org> To: Big Lebowski <spankthespam@gmail.com> Cc: freebsd-xen@freebsd.org Subject: Re: Terrible performance of XenServer 6.2 and FreeBSD 10.0-RELEASE guest Message-ID: <8FDB514D-1A94-48B2-AE19-62923F327938@FreeBSD.org> In-Reply-To: <CAHcXP%2BeLEKP%2BrZ5gXo_fg1Q_jQQ7-G-_E8Bn5co-FjvSV2G22Q@mail.gmail.com> References: <CAHcXP%2BeLEKP%2BrZ5gXo_fg1Q_jQQ7-G-_E8Bn5co-FjvSV2G22Q@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Is all this work being done over SSH? Do you have a pf firewall? Have = you disabled TSO? ifconfig xn0 -tso or sysctl net.inet.tcp.tso=3D0 My suspicion is that the slowness of the shell over the network is = making the machine seem slower than it should be. There are terrible = network issues with pf and tso on a XenServer environment. I'm not = otherwise aware of severe I/O issues on XenServer. I have a fairly large = cluster running almost all FreeBSD guests without any sort of issues = related to I/O.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?8FDB514D-1A94-48B2-AE19-62923F327938>