Date: Wed, 9 Nov 2011 17:37:38 +1030 From: "Daniel O'Connor" <doconnor@gsoft.com.au> To: Garrett Cooper <yanegomi@gmail.com> Cc: Kurt Touet <ktouet@gmail.com>, freebsd-current@freebsd.org, Dan The Man <dan@sunsaturn.com> Subject: Re: samba+zfs Message-ID: <82C85C01-62C4-4E75-B3F2-59D703CA5D78@gsoft.com.au> In-Reply-To: <CAGH67wRJkN%2BsDhxxMVSZx3RXQJm5xyyfW9iwiY1FrkFxLu%2BTWQ@mail.gmail.com> References: <alpine.BSF.2.00.1110272039500.50739@sunsaturn.com> <CAGH67wRZZx0hG9ug2k-5ohCOPJ9sZOU9iFVKg7hv9WM=R761GA@mail.gmail.com> <alpine.BSF.2.00.1111080259270.89703@sunsaturn.com> <alpine.BSF.2.00.1111080328010.89703@sunsaturn.com> <CALM%2B6aJkF=CFq8LA3FrSMYo8La-8txK4h2p4yZtdHshskBU6Vw@mail.gmail.com> <alpine.BSF.2.00.1111082015260.93923@sunsaturn.com> <CALM%2B6aJiM%2BNfikax9vNiYzBJqo3B8WLEXiZgrjUUQa9ngCQaKg@mail.gmail.com> <B4FEAF5B-52AC-40E5-90A3-7BD060BB7A73@gsoft.com.au> <F8AEDB62-4C76-4D95-8CBA-6C58B54C1965@gsoft.com.au> <CAGH67wRJkN%2BsDhxxMVSZx3RXQJm5xyyfW9iwiY1FrkFxLu%2BTWQ@mail.gmail.com>
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On 09/11/2011, at 17:32, Garrett Cooper wrote >> dd's of large files (spooled backups going to tape) to /dev/null are = as slow as Samba. >=20 > - Dedupe? Nope. > - Compression? On the mail spool & ports, but not on the tape spool. > - How much RAM? 8GB. > - What debug options do you have enabled in the kernel? It is 8.2-GENERIC so.. no WITNESS (for example) > I've been noticing a slowdown in some respects with NFS/SMB, but I > suspected it was because I have an re(4) based NIC. ZFS has also wired > down a lot of my system memory for the L2ARC=85 re isn't great but I wouldn't expect it to slow down over time.. Unless = bounce buffers got used more and more or something. I have an em0 card in this system - but in any case it is slow locally = (i.e. dd a large file with 64k block size). -- Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
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