Date: Mon, 09 Aug 2010 17:24:02 +0200 From: Ivan Voras <ivoras@freebsd.org> To: freebsd-stable@freebsd.org Subject: Re: 8-STABLE Slow Write Speeds on ESXI 4.0 Message-ID: <i3p6il$djf$1@dough.gmane.org> In-Reply-To: <AANLkTimuPnac_h-ipCyD76j%2B0HGttBxDYyTNdtdU0_sm@mail.gmail.com> References: <AANLkTi=FNZ%2B=4yMPJBu%2BucGJiHqwMwQvoGcgqB%2BtPJF2@mail.gmail.com> <i3jhn0$ovp$1@dough.gmane.org> <AANLkTik%2BS2fe-sS242OXQprsEA4Oh4t6-CvBCuBCASz7@mail.gmail.com> <AANLkTimMA6OQKt-d6ecM=GmG2ciBTis-nHNovEwvjCB-@mail.gmail.com> <AANLkTimu2JoC6bmaBcSY3e5ovBPnwZ_s_zbRK=v8h7f6@mail.gmail.com> <AANLkTimuPnac_h-ipCyD76j%2B0HGttBxDYyTNdtdU0_sm@mail.gmail.com>
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On 9.8.2010 17:12, Ivan Voras wrote: > On 9 August 2010 16:55, Joshua Boyd <boydjd@jbip.net> wrote: >> On Sat, Aug 7, 2010 at 1:58 PM, Ivan Voras <ivoras@freebsd.org> wrote: >> I'm going to try 7.3-RELEASE today, just to make sure that this isn't a >> regression of some kind. It seems from reading other posts that this used to >> work properly and satisfactorily. > > Nope, I've been messing around with VMWare for a long time and the > performance penalty was always there. Hmmm, I've been thinking a little and after retesting one of my guests on a 12-drive RAID-6 HP FC enclosure, and your 40 MB/s writes actually do seam slow. I'm getting around 110 MB/s sequential reads and writes (untuned) and the guest controller is recognized as: mpt0: <LSILogic 1030 Ultra4 Adapter> port 0x1400-0x14ff mem 0xd8820000-0xd883ffff,0xd8800000-0xd881ffff irq 17 at device 16.0 on pci0 mpt0: [ITHREAD] mpt0: MPI Version=1.2.0.0 on 7.3-release, i386, ESXi 4.0. Are you sure you are testing when no others guests generate IO?
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