Date: Wed, 21 Jun 2017 11:04:18 -0500 From: Tim Daneliuk <tundra@tundraware.com> To: FreeBSD Mailing List <freebsd-questions@freebsd.org> Subject: FreeBSD and Linux SSD Write Speeds Message-ID: <45657887-638e-bb6d-c318-7046fdea1ca6@tundraware.com>
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Disclaimer: Tests below run on lightly loaded systems, but results are ... surprising: Test Case: dd if=/dev/zero of=foo bs=8M count=512 Linux 4.4.0-21-generic on a 2.66GHz Core2 Duo w/8GB memory, older OCZ SSD/ext4: 310MB/sec writes FreeBSD 10-STABLE on an 3.2 GHz Quad Core i5 w/8GB memory, newer Kingston SSD/ufs: 210MB/sec writes Results are repeatable. So, what is the likely culprit making FreeBSD 1/3 slower? The FreeBSD system does does / nfs exported (which I don't quite yet understand since all the nfs mount points are below it) at the moment, but there is little or no nfs traffic.
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