09-13-2010
Pipe & fifo size limit
Hi guys.
1. how much is the size of pipe?(i mean the buffer size)
2. is this size different in various UNIX derivations?
3. what happens if we write to a full pipe? does it block until get some free space(the other side receive data) or returns an error?
3. FIFO s are physical files on the system. so their size limit must be limited to the file system. am i right?
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LEARN ABOUT CENTOS
intel_panel_fitter
intel_panel_fitter(1) General Commands Manual intel_panel_fitter(1)
NAME
intel_panel_fitter - Change the panel fitter settings
SYNOPSIS
intel_panel_fitter [options]
DESCRIPTION
intel_panel_fitter is a tool that allows you to change the panel fitter settings, so you can change the size of the screen being displayed
on your monitor without changing the real pixel size of your desktop. The biggest use case for this tool is to work around overscan done by
TVs and some monitors in interlaced mode.
Options
-p [pipe]
pipe to be used (A, B or C, but C is only present on Ivy Bridge and newer).
-x [value]
final screen width size in pixels (needs -p option).
-y [value]
final screen height size in pixels (needs -p option).
-d disable panel fitter (needs -p option, ignores -x and -y options).
-l list current state of each pipe.
-h prints the help message.
EXAMPLES
intel_panel_fitter -l
will list the current status of each pipe, so you can decide what to do.
intel_panel_fitter -p A -x 1850 -y 1040
will change the pipe A size to 1850x1040 pixels.
intel_panel_fitter -p A -d
will disable the panel fitter for pipe A.
NOTES
In the future, there will be support for this feature inside the Linux Kernel.
Machines older than Ironlake are still not supported, but support may be possible to implement.
X Version 11 intel-gpu-tools 1.3 intel_panel_fitter(1)