HDParm is not meant as a benchmark tool, and i would generally ignore it's results past the "it looks slow" or "it looks fast" type. Try bonnie++. On May 13, 2014 1:39 AM, "Daejuan Jacobs" <[email protected]> wrote:
> What do you get when you run ? > > hdparm -Tt /dev/sda > > > > On Mon, May 12, 2014 at 3:18 PM, Philippe Schwarz <[email protected]>wrote: > >> -----BEGIN PGP SIGNED MESSAGE----- >> Hash: SHA1 >> >> >> Hi, >> on Proxmox 3.1 with LInux KVM guest : >> >> # hdparm -t /dev/vda >> >> /dev/vda: >> Timing buffered disk reads: 896 MB in 3.02 seconds = 296.78 MB/sec >> >> On the prxomox host itself: >> >> hdparm -t /dev/sda >> >> /dev/sda: >> Timing buffered disk reads: 388 MB in 3.01 seconds = 129.09 MB/sec >> >> >> So, ....the VM is more than twice faster than the real disk >> subsystem... Weird.... >> >> Did i hit a cache problem ? >> >> Thanks >> >> Best regards >> -----BEGIN PGP SIGNATURE----- >> Version: GnuPG v1.4.12 (GNU/Linux) >> Comment: Using GnuPG with Icedove - http://www.enigmail.net/ >> >> iEYEARECAAYFAlNxLJUACgkQlhqCFkbqHRbMIACbBvX0SNLZQNR75Hpig0ArGSJ0 >> sVYAoJMisShiCTlqz1Ni0nM29wSb1OQJ >> =WjZH >> -----END PGP SIGNATURE----- >> _______________________________________________ >> pve-user mailing list >> [email protected] >> http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user >> > > > _______________________________________________ > pve-user mailing list > [email protected] > http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user > >
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