Date: Mon, 26 Oct 2020 17:34:03 +0100 From: rainer@ultra-secure.de To: freebsd-virtualization@freebsd.org Cc: owner-freebsd-virtualization@freebsd.org Subject: Re: Why is it that when I run FreeBSD in a local KVM, it behaves normal, but when it run it in our OpenStack cloud, IO is painfully slow? Message-ID: <21190ba3e59dbe084511cefeee3af365@ultra-secure.de> In-Reply-To: <0466f1268c7059af6a5e9950e47db6a0@ultra-secure.de> References: <0466f1268c7059af6a5e9950e47db6a0@ultra-secure.de>
next in thread | previous in thread | raw e-mail | index | archive | help
Am 2020-10-26 17:25, schrieb rainer@ultra-secure.de: > Hi, > > I uploaded the qcow2 image of 12.2RC3 and a recent 13-snapshot to our > Openstack Cloud. > > I use dc3dd wipe to test IO because it eliminates the filesystem. > > I don't really have a particular fast SSD in my office PC, but I get > around 100MB/s from writing zeros to the harddisk in CentOS. > I also get about 100MB/s on FreeBSD on my local PC. > > Sorry, I wanted to save this for later editing, but clicked send. I get maybe 20% IO performance in FreeBSD on Openstack. I'll add more information later.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?21190ba3e59dbe084511cefeee3af365>