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Date:      Thu, 16 Jan 2020 04:09:47 +0700
From:      Eugene Grosbein <eugen@grosbein.net>
To:        Warner Losh <imp@bsdimp.com>, Nathan Whitehorn <nwhitehorn@freebsd.org>
Cc:        Oliver Pinter <oliver.pntr@gmail.com>, Ben Woods <woodsb02@freebsd.org>, "src-committers@freebsd.org" <src-committers@freebsd.org>, "svn-src-all@freebsd.org" <svn-src-all@freebsd.org>, "svn-src-head@freebsd.org" <svn-src-head@freebsd.org>, Ed Maste <emaste@freebsd.org>
Subject:   Re: svn commit: r356758 - in head/usr.sbin/bsdinstall: . scripts
Message-ID:  <aea3e071-61bd-399d-1d1f-cce4125b2480@grosbein.net>
In-Reply-To: <CANCZdfpOw54MQsW4aohLn3ufgEqK8beTe_EdjYktViFubPPyzg@mail.gmail.com>
References:  <202001150747.00F7lqiG071097@repo.freebsd.org> <CAPjTQNHa9Um%2B0S8zMD3eeop3YSdVti0o=DSv5%2BB=455wcrq3VA@mail.gmail.com> <ed0b16af-01c8-62fe-918a-3f1f9f9dcbd8@freebsd.org> <CANCZdfpOw54MQsW4aohLn3ufgEqK8beTe_EdjYktViFubPPyzg@mail.gmail.com>

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16.01.2020 3:32, Warner Losh wrote:

> unless your work load hits the fairly narrow range where ZFS isn't so good.
> 
> [*] Netflix uses UFS because of sendfile efficiencies

There are multiple scenarios there ZFS may be sub-optimal at least: small i386 virtual guests
or 32-bit only hardware like AMD Geode, or big amd64 SSD-only systems with bhyve and multiple guests
that need lots of memory and should not fight with ZFS for RAM etc.



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