Some Info:
Running FreeNAS-8.0.1-RC2-amd64 (7813). My hardware allows for a 120Mb/s read speed. My network allows for a maximum of 100Mb/s transfer speed (gigabit).
I am able to write to my freenas box at 80Mb/s (using CIFS/SMB). Reading however using CIFS/SMB yields an incredible slow performance (to both windows and linux boxes). It started out at something like 1.3 Mb/s with large RW and AIO enabled. At some point I discovered that send file could be the cullprit and disabled it. Read speed went up to the expected 80 Mb/s. I decided to try tinkering with the read write buffer sizes and added some auxiliary parameters. CIFS started to transfer really slow again. Now here is the weird part, I removed the aux. settings and performance stayed bad. Suspecting a config update corruption I started checking how changing trough the web interface effected the smb.conf file. Here are my conclusions:
Clicking use sendfile gives me a "use sendfile=yes" entry. Enabling it gives me no entry in the smb.conf file. Is this correct?
Almost the same thing happened with the large readwrite setting. Enabling did not put an "use large readwrite=yes" option in my smb.conf file. It left the setting out.
putting use sendfile=no in the auxiliary setting improved my transferrate to 30mb/s. Adding use large readwrite=yes downgraded my read performance again.
my conclusions:
1) its not my network
2) its not my client
3) its not my disk transfer speed
4) its setting related to CIFS/SMB
5) Possible there is a bug in updating from the web-interface to the smb.conf file.
I am totally puzzled over this, any help on how to get my read speed over CIFS/SMB in order would be appreciated.
Running FreeNAS-8.0.1-RC2-amd64 (7813). My hardware allows for a 120Mb/s read speed. My network allows for a maximum of 100Mb/s transfer speed (gigabit).
I am able to write to my freenas box at 80Mb/s (using CIFS/SMB). Reading however using CIFS/SMB yields an incredible slow performance (to both windows and linux boxes). It started out at something like 1.3 Mb/s with large RW and AIO enabled. At some point I discovered that send file could be the cullprit and disabled it. Read speed went up to the expected 80 Mb/s. I decided to try tinkering with the read write buffer sizes and added some auxiliary parameters. CIFS started to transfer really slow again. Now here is the weird part, I removed the aux. settings and performance stayed bad. Suspecting a config update corruption I started checking how changing trough the web interface effected the smb.conf file. Here are my conclusions:
Clicking use sendfile gives me a "use sendfile=yes" entry. Enabling it gives me no entry in the smb.conf file. Is this correct?
Almost the same thing happened with the large readwrite setting. Enabling did not put an "use large readwrite=yes" option in my smb.conf file. It left the setting out.
putting use sendfile=no in the auxiliary setting improved my transferrate to 30mb/s. Adding use large readwrite=yes downgraded my read performance again.
my conclusions:
1) its not my network
2) its not my client
3) its not my disk transfer speed
4) its setting related to CIFS/SMB
5) Possible there is a bug in updating from the web-interface to the smb.conf file.
I am totally puzzled over this, any help on how to get my read speed over CIFS/SMB in order would be appreciated.
