Date: Sat, 30 Apr 2011 22:28:26 -0400 (GMT-04:00) From: typo W <aqqa11@earthlink.net> To: freebsd-emulation@freebsd.org Subject: virtualbox I/O 3 times slower than KVM? Message-ID: <6157936.1304216907022.JavaMail.root@mswamui-blood.atl.sa.earthlink.net>
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Hi, I'm brand new to virtualbox, so pardon me in case I made stupid mistakes. I created a FreeBSD guest out of the regular virtualbox port (3.2.12) on FreeBSD 8.2, then timed the copying of a 320MB binary file to another file, which took 4 seconds, ie, 80MB/s. On an identical hardware I created a CentOS guest out of KVM running on CentOS, and the same operation only takes 1 second. On both hosts, the copy takes 1 second. That is, virtualbox slowed the copying to 1/4 speed on my guest FreeBSD. Both hosts are Dell R710, with 6 x 600GB 15K SAS drives forming a RAID6 with R700 controller with 512MB cache. I'm testing in preparation of production servers, so would prefer regular ports, ie, 4.0.6 tar ball is out of question for now.
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