Hi Ken,

Thanks for your reply.

if my below understanding correct?
if i add below to the end of /etc/fstab,
tmpfs /usr/local/freeswitch/db tmpfs defaults 0 0

and then reboot machine, the system will auto mount the tmpfs.
i don't need run mannually mount /usr/local/freeswitch/db before start freeswitch...

Thanks.

Regards,
Charles

2011/4/23 Ken Rice <krice@freeswitch.org>

Tmpfs is not a program... Read that page a little closer... That’s particular line is for your fstab...

If you want to mount it from the command line its
mount –o tmpfs tmpfs /usr/local/freeswitch/db    

K



On 4/22/11 10:50 PM, "fieldpeak" <fieldpeak@gmail.com <http://fieldpeak@gmail.com> > wrote:

i'm trying tuning the FS to max performance on centos 5.5, and referred to
http://wiki.freeswitch.org/wiki/Performance_testing_and_configurations#FreeSWITCH.27s_core.db_I.2FO_bottleneck

#1,  i configure the DB of FS to ramdisk ,

when i run "tmpfs /opt/freeswitch/db tmpfs defaults 0 0", it output: "-bash: tmpfs: command not found"

#2,  i run "ethtool -g eth0", the output is below, what value i should config for RX and TX for max performance...
Ring parameters for eth0:
Pre-set maximums:
RX:             4096
RX Mini:        0
RX Jumbo:       0
TX:             4096
Current hardware settings:
RX:             256
RX Mini:        0
RX Jumbo:       0
TX:             256

Apprecited if anyone help how to configure it... thanks!

Regards,
Charles

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