Date: Mon, 17 Nov 2014 12:08:34 +0100 From: Mark Schouten <mark@tuxis.nl> To: freebsd-hackers@freebsd.org Subject: Re: Slow nfsd write performance, tweaks needed Message-ID: <3176881007-17726@kerio.tuxis.nl> In-Reply-To: <2826701214-10966@kerio.tuxis.nl>
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--=-3Zzp9AtdhjR9S0QcWG6Q Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Hi, Mark Schouten <mark@tuxis.nl> , 13-11-2014 11:17: I am in the process of switching from a ZFS On Linux-based NFS-server to a = FreeBSD-based NFS-server. The FreeBSD implementation of ZFS is way superiou= r over ZoL, and the box serves as storage for a virtualizationplatform, so = stability is welcome. :)=20 =20 =20 The box is stable, but performs terribly. Surely, I'm doing something wrong= , but I would like some tips and tricks to speed things up.=20 Thanks for all your responses. I've setup a testserver to do some benchmark= s, here are the results. Things are tested from inside a VM, that runs insi= de a Proxmox-VM, that runs on my Desktop (that performs pretty good, BTW :)= ) So, command used to benchmark is: 'bonnie++ -u root -d . -r 1024' Locally on the zfs/nfs/ctl-server itself: =C2=A0 =C2=A01m42.91s iscsi (using the new ctld on FreeBSD 10): =C2=A0 =C2=A01m55.203s nfs on linux desktop (on which the vms are running too) =C2=A0 =C2=A04m42.267s ufs via nfs from FreeBSD 10: =C2=A0 =C2=A020m35.644s zfs via nfs from FreeBSD 10: =C2=A0 =C2=A024m23.225s zfs with sync disabled via nfs from FreeBSD 10: =C2=A0 =C2=A021m0.191s The same FreeBSD testbox is used for all tests, which was doing nothing but= the benchmark. What I've learned from these benchmarks is this: * NFS on FreeBSD just sucks, bigtime * NFS on Linux performs 'ok' * iScsi on FreeBSD is fast, very fast Two questions remain:=C2=A0 * How stable is ctl(d)? * How does it perform with more iops and clients? If anyone has any input on that, I'd be grateful. Regards,=C2=A0 --=C2=A0 Kerio Operator in de Cloud? https://www.kerioindecloud.nl/ Mark Schouten | Tuxis Internet Engineering KvK:=C2=A061527076=C2=A0| http://www.tuxis.nl/ T: 0318 200208 | info@tuxis.nl = --=-3Zzp9AtdhjR9S0QcWG6Q Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Disposition: attachment; filename="smime.p7s" Content-Description: Electronic Signature S/MIME Content-Transfer-Encoding: base64 MIIRwQYJKoZIhvcNAQcCoIIRsjCCEa4CAQExCzAJBgUrDgMCGgUAMAsGCSqGSIb3DQEHAaCCDt4w ggUbMIIEA6ADAgECAhAsv+VdGX6YsSHI/WRu2j2JMA0GCSqGSIb3DQEBBQUAMIGTMQswCQYDVQQG EwJHQjEbMBkGA1UECBMSR3JlYXRlciBNYW5jaGVzdGVyMRAwDgYDVQQHEwdTYWxmb3JkMRowGAYD VQQKExFDT01PRE8gQ0EgTGltaXRlZDE5MDcGA1UEAxMwQ09NT0RPIENsaWVudCBBdXRoZW50aWNh dGlvbiBhbmQgU2VjdXJlIEVtYWlsIENBMB4XDTE0MDcwMTAwMDAwMFoXDTE1MDcwMTIzNTk1OVow HjEcMBoGCSqGSIb3DQEJARYNbWFya0B0dXhpcy5ubDCCASIwDQYJKoZIhvcNAQEBBQADggEPADCC AQoCggEBANHu3SxlMZOG5GA0/mqtRXR1QmWwhUXzmCIprI0IPtSBWSA31YBJ5qcmXRhLzaiTB3Fr 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