Date: Thu, 9 Feb 2006 14:37:54 +0100 From: peceka <peceka@gmail.com> To: freebsd-scsi@freebsd.org Subject: problem with low efficiency of HP Smart Array 6i under FBSD Message-ID: <f0f70e5e0602090537h497b42ach@mail.gmail.com>
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Hi, have you noticed any problems with low efficiency of HP Smart Array 6i under FBSD? We've just made some tests on HP DL380 G4 (2GB RAM, 2x HDD ULTRA320 SCSI 15k, 2 x Pentium Xeon 3.6GHz with 2MB cache, raid Smart Array 6i with HP SA6i Battery Backed Cache Enabler with FBSD 6.0 STABLE. and second machine: HP DL380 G4 (2GB RAM, 2xULTRA320 SCSI 10k, 2 x Pentium Xeon 3.4GHz with 1MB cache, raid Smart Array 6i with HP SA6i Battery Backed Cache Enabler - with Linux CentOS 4.3. Our test: #!/bin/sh START=3D"0" END=3D"10000" while [ $START -lt $END ]; do dd if=3D/dev/zero of=3D$i.iso count=3D100000 > /dev/null 2>&1 rm -f $i.iso START=3D`expr $START+1` echo $START done Time of executing this scripts: FreeBSD: 149m 28s Linux: 97m 13s Time of creating one file: dd if=3D/dev/zero of=3Dplik.iso bs=3D1000 count=3D5000000 FreeBSD: 4397s Linux: 2310s dd if=3D/dev/zero of=3Dplik.iso bs=3D100 count=3D50000000 FreeBSD: 299.6s Linux: 214.1s dd if=3D/dev/zero of=3Dplik.iso bs=3D10 count=3D50000000 FreeBSD: 277.2s Linux: 199s Has someone any ideas what to do with this problem? I really don't want to install Linux on this machines... if there is a necessity, I can create some accounts for scsi hackers.
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