Date: Wed, 21 Jun 2017 13:27:32 -0500 From: Tim Daneliuk <tundra@tundraware.com> To: FreeBSD Mailing List <freebsd-questions@freebsd.org> Subject: Re: FreeBSD and Linux SSD Write Speeds Message-ID: <5e983ac1-ffb0-4e2e-307d-6be0985389d0@tundraware.com> In-Reply-To: <CADyrUxMkV5sRgQBzZ2_KwyaNKPULmcCJP0L4EA2oJz8CpUqSbw@mail.gmail.com> References: <45657887-638e-bb6d-c318-7046fdea1ca6@tundraware.com> <CADyrUxMkV5sRgQBzZ2_KwyaNKPULmcCJP0L4EA2oJz8CpUqSbw@mail.gmail.com>
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On 06/21/2017 11:23 AM, Jov wrote:
> Try add sync option to dd and write twice of memory size data(16gb for your hw).
>
>
> Jov
OK, reran with:
dd if=/dev/zero of=foo bs=8M count=1024 conv=sync
Results (fastest of several runs):
Linux: 265MB/sec
FreeBSD: 180MB/sec
The fact that there is some variability us unremarkable. What is
remarkable is that the FreeBSD is more powerful and has a much
newer SSD drive.
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Tim Daneliuk tundra@tundraware.com
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