Date: Sun, 25 Mar 2012 15:37:44 -0500 From: Dan Nelson <dnelson@allantgroup.com> To: Moritz Schlarb <mail@moritz-schlarb.de> Cc: freebsd-questions@freebsd.org Subject: Re: Performance of Geli compared to Luks Message-ID: <20120325203744.GB55964@dan.emsphone.com> In-Reply-To: <jknp5q$m29$1@dough.gmane.org> References: <jknp5q$m29$1@dough.gmane.org>
next in thread | previous in thread | raw e-mail | index | archive | help
In the last episode (Mar 25), Moritz Schlarb said: > My HP Proliant Microserver, which I want to use as a NAS, is using an AMD > Turion II Neo N40L processor. The plain disks give me about 100 MB/s > using filebench with the fivestreamwrite/multistreamwrite workloads (as > software RAID-1 under Linux and zpool mirror under FreeBSD). > > In Linux, using LUKS with cipher aes-xts-plain64 on a software RAID-1 I > get the same ~100 MB/s for the same benchmarks. > > In FreeBSD, using a mirror zfs pool with underlying GELI with AES-XTS I > get only ~50 MB/s. > > As the encryption algorithms should be the same, I'm wondering why FreeBSD > is that slow for nearly exactly the same use case. Any ideas how I could > tweak my settings in FreeBSD? As a first step, I'd try reading/writing from the raw GELI and LUKS devices to rule out performance differences due to the filesystems you're using. -- Dan Nelson dnelson@allantgroup.com
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20120325203744.GB55964>