05-21-2013
My NIC driver didn't pass high pressure test!
My NIC driver, which is writed by myself, didn't pass high pressure test!
I writed a shell script in which the key commands are "scp" to test the driver under high pressure. The shell script loop 3000 times and in each loop, the scp command transmits 1GB data.
When the test fail, it report like this:
"... 0B/s ... stalled ... "
"write failure: broken pipe"
It means the transmission rate between client and server is fall gradually to 0Byte per second from 11MB per second when the driver run nomally. Finally, the "pipe broken"(what does it mean)! This failure often ocurred after a large amount of data transmitted, such as 36GB or 52GB and so on.
what is the problem? How should I crrect it?
li,kunlun
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JS_X(4x) JS_X(4x)
NAME
js_x - JamStudio input driver
SYNOPSIS
Section "InputDevice"
Identifier "devname"
Driver "js_x"
Option "Device" "devpath"
Option "MaxX" "int"
Option "MaxY" "int"
Option "MinX" "int"
Option "MinY" "int"
Option "PressMax" "int"
Option "PressMin" "int"
Option "PressDiv" "int"
EndSection
DESCRIPTION
js_x is an XFree86 input driver for JamStudio devices.
The js_x driver functions as a pointer input device, and may be used as the X server's core pointer.
SUPPORTED HARDWARE
This driver supports the KB-Gear JamStudio pentablet. This X-Input driver should work on any OS supporting the hiddev raw USB HID driver.
CONFIGURATION DETAILS
Please refer to XF86Config(5x) for general configuration details and for options that can be used with all input drivers. This section
only covers configuration details specific to this driver.
Option "Device" "path"
sets the path to the raw HID device to which the tablet was assigned. This option is mandatory.
Option "MinX" "int"
Option "MaxX" "int"
Option "MinY" "int"
Option "MaxY" "int"
sets the minimum and maximum values returned for the absolute X,Y axis of the pen tablet. These values default to 0-8000 for X
and 0-6000 for Y. It should generally be safe to leave these values untouched.
Option "PressMin "int"
Option "PressMax "int"
sets the minimum and maximum values returned for the pressure sensitive tip. These values default to 0-127. It should generally
be safe to leave these values untouched.
Option "PressDiv" "int"
sets the divider for the returned pressure value. This option will allow you to return a smaller set of values for the pressure
sensitive tip allowing for finer control. The returned value is computed as follows:
X / PressDiv = returned value
where X equals the value read from the tablet.
SEE ALSO
XFree86(1), XF86Config(5x), xf86config(1), Xserver(1), X(7x).
AUTHORS
Brian Goines <bgoines78@comcast.net>
XFree86 Version Version 4.3.0 JS_X(4x)