Setup guide

If the device bandwidth keeps degrading, then the bandwidth
manager starts reducing bandwidth proportionally from the
low-bandwidth values towards zero for all applications.
■ <writing_bandwidth> represents the minimum writing bandwidth
required by the application, expressed in megabytes per second. If
more bandwidth is available on the device, the Bandwidth Manager
gives the application as much bandwidth as possible. If this parameter
is not specified, the Bandwidth Manager automatically calculates a
default value, based on <reading_bandwidth> and on the total
configured read and write bandwidth values of the device.
■ <low_writing_bandwidth> represents the minimum value towards
which writing bandwidth for this application is reduced in
low-bandwidth situations. The Bandwidth Manager will attempt to
give the application this minimum amount of bandwidth for as long
as possible. If the device bandwidth keeps degrading, then the
bandwidth manager starts reducing bandwidth proportionally from
the low-bandwidth values towards zero for all applications.
For example:
Reservation1=flame 500 (300)
Reservation2=flare artist@flare1 200 (100)
5 Save and close the configuration file, and restart Stone and Wire by
typing:
/etc/init.d/stone+wire restart
NOTE Bandwidth for an application is actually reserved only when that application
is running. Processes that do not have a bandwidth reservation setting in the
sw_bwmgr.cfg file fall under the default combined reservation of 10 MB/s.
Defining Groups of Applications
The Stone and Wire Bandwidth Manager allows you to set up bandwidth
reservations for custom groups of applications. All the applications in a group
will share the same reservation.
By default, the configuration file already contains a definition for the “IFFFS”
group, which includes the “inferno”, “flame”, “flint”, and “smoke” application
tokens.
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