Date: Fri, 19 Jul 2013 17:37:21 +0200 From: Nicolas Roosen <nicolas.roosen@gmail.com> To: freebsd-stable@freebsd.org Subject: Virtio drivers and FreeBSD 9.1 Message-ID: <51E95D31.3060103@gmail.com>
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello everybody, I have some trouble with the following configuration: - - a Samsung SSD 840 Pro drive of 128 GB - - a Debian Wheezy (7.1) as a KVM host - - multiple Debian 7.1 and FreeBSD 9.1 guests on top of it I have installed the virtio drivers (from http://people.freebsd.org/~kuriyama/virtio/) on all guests, and configured the KVM domain.xml files accordingly. Then I ran some I/O tests using iozone. And as you can see on the results below, there is a big difference between the Debian guest and the FreeBSD guest. Is there any option I could have forgotten to set up in FreeBSD that could explain this difference? On the host server: iozone -s 64M -r 4k -i 0 -i 1 -i 2 random random KB reclen write rewrite read reread read write 65536 4 258532 553602 922146 969225 1523242 530324 On the FreeBSD guest: random random KB reclen write rewrite read reread read write 65536 4 61687 128261 574681 580237 537510 20690 On the Debian guest: random random KB reclen write rewrite read reread read write 65536 4 119604 481670 878853 935172 1328093 473255 Thank you. - -- Vos conversations sont privées, sécurisez-les. Your conversations are private, secure them. https://gpgtools.org or http://gpg4win.org -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.20 (MingW32) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJR6V0qAAoJEIylYwQV0UQcGAgIAJB6PCo6Bc5ewpBPVFf1ZaoU aePblYD2YNgkIRA074WHMFgdudoIzc+U/0IpVSM+N+OvpRwyFXrAW8PuY46Hrdxp Qnh+d9uYFaN8tZqKbpbWvmSziwepHBfozrsIugoP+7fohNAro0/ycpC8EYvuqJI6 JuOqVAOK87fuTXKV0GbwSuhxVvrvaxOTY083QxGoiS0isieEE2DCwFa5y/blmQPe yJTMn45ykbkkskDUWrdNne3lsmM1PFktfyFkslxSuaaNN1Nm+tWKgRDQm4lusRup 3IRy/ZNVI2Gu0/fnqs3Z6nY+LSke1qsKL9WveQEZCZLt/BhkyHCQVlclwGKhZjA= =Kl+S -----END PGP SIGNATURE-----
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