Date: Thu, 13 Nov 2014 10:46:46 +0100 From: Mark Schouten <mark@tuxis.nl> To: freebsd-hackers@freebsd.org Subject: Slow nfsd write performance, tweaks needed Message-ID: <2826701214-10966@kerio.tuxis.nl>
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--=-QclVn6YRa6m6ltd6cwMJ Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Hi, 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. :) 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. Here's my setup: CPU: Intel(R) Xeon(R) CPU E5-2620 v2 @ 2.10GHz (HyperThreading is enabled) RAM: 64GB NIC: 2x igb in lagg0 (loadbalancing) Disks:=C2=A0 export1 =C2=A0 =C2=A0 1.81T =C2=A0 914G =C2=A0 942G =C2=A0 =C2=A049% =C2=A0= 1.00x =C2=A0ONLINE =C2=A0- =C2=A0 mirror =C2=A0 =C2=A0 928G =C2=A0 457G =C2=A0 471G =C2=A0 =C2=A0 =C2= =A0 =C2=A0 - =C2=A0 =C2=A0 da0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 - =C2=A0 =C2=A0 =C2=A0- =C2= =A0 =C2=A0 =C2=A0- =C2=A0 =C2=A0 =C2=A0 =C2=A0 - =C2=A0 =C2=A0 da1 =C2=A0 =C2=A0 =C2=A0 =C2=A0 - =C2=A0 =C2=A0 =C2=A0- =C2= =A0 =C2=A0 =C2=A0- =C2=A0 =C2=A0 =C2=A0 =C2=A0 - =C2=A0 mirror =C2=A0 =C2=A0 928G =C2=A0 457G =C2=A0 471G =C2=A0 =C2=A0 =C2= =A0 =C2=A0 - =C2=A0 =C2=A0 da2 =C2=A0 =C2=A0 =C2=A0 =C2=A0 - =C2=A0 =C2=A0 =C2=A0- =C2= =A0 =C2=A0 =C2=A0- =C2=A0 =C2=A0 =C2=A0 =C2=A0 - =C2=A0 =C2=A0 da3 =C2=A0 =C2=A0 =C2=A0 =C2=A0 - =C2=A0 =C2=A0 =C2=A0- =C2= =A0 =C2=A0 =C2=A0- =C2=A0 =C2=A0 =C2=A0 =C2=A0 - =C2=A0 mirror =C2=A0 =C2=A09.94G =C2=A0 173M =C2=A09.77G =C2=A0 =C2=A0 =C2= =A0 =C2=A0 - =C2=A0 =C2=A0 da4p1 =C2=A0 =C2=A0 =C2=A0 - =C2=A0 =C2=A0 =C2=A0- =C2=A0 =C2= =A0 =C2=A0- =C2=A0 =C2=A0 =C2=A0 =C2=A0 - =C2=A0 =C2=A0 da5p1 =C2=A0 =C2=A0 =C2=A0 - =C2=A0 =C2=A0 =C2=A0- =C2=A0 =C2= =A0 =C2=A0- =C2=A0 =C2=A0 =C2=A0 =C2=A0 - cache =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 - =C2=A0 =C2=A0 =C2=A0- =C2=A0 =C2= =A0 =C2=A0- =C2=A0 =C2=A0 =C2=A0- =C2=A0 =C2=A0 =C2=A0- =C2=A0 =C2=A0 =C2= =A0- =C2=A0 da4p2 =C2=A0 =C2=A0 =C2=A0223G =C2=A0 223G =C2=A0 =C2=A0 8M =C2=A0 = =C2=A0 =C2=A0 =C2=A0 - =C2=A0 da5p2 =C2=A0 =C2=A0 =C2=A0223G =C2=A0 223G =C2=A0 =C2=A0 8M =C2=A0 = =C2=A0 =C2=A0 =C2=A0 - da0-3 are 1TB WDs da4-5 are 240GB=C2=A0Samsung SSD 840s Here's (related) info from rc.conf. nfs_server_enable=3D"YES" nfs_server_flags=3D"-u -t -n 128" rpcbind_enable=3D"YES" mountd_enable=3D"YES" rpc_lockd_enable=3D"YES" rpc_statd_enable=3D"YES" I have compression enabled on all the ZFS-filesystems, and jumboframes are = enabled on the nics. As soon as one of the (Linux) clients start to do some IO, NFS responsetime= s go up bigtime (yesterday up to 13 seconds), while the hardware is pretty = much idle, I must be doing something very wrong. I'm mostly a Linux-guy, so= any hit with a FreeBSD cluebat is appreciated. Regards, --=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= --=-QclVn6YRa6m6ltd6cwMJ 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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