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authorRalf Corsepius <ralf.corsepius@rtems.org>2003-01-22 05:53:29 +0000
committerRalf Corsepius <ralf.corsepius@rtems.org>2003-01-22 05:53:29 +0000
commita454e88d34be216c74e26fa196cc861fe09a1f03 (patch)
tree2e5e67bc062ba7033ee114d438692e8f635a5664 /doc/supplements/arm/wksheets.texi
parent2003-01-22 Ralf Corsepius <corsepiu@faw.uni-ulm.de> (diff)
downloadrtems-a454e88d34be216c74e26fa196cc861fe09a1f03.tar.bz2
2003-01-22 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
* wksheets.texi: Remove from CVS. * timing.texi: Remove from CVS.
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-@c ****** This comment is here to remind you not to edit the wksheets.t
-@c ****** in any directory but common.
-@c
-@c Figures ...
-@c RTEMS RAM Workspace Worksheet
-@c RTEMS Code Space Worksheet
-@c
-@c COPYRIGHT (c) 1988-2002.
-@c On-Line Applications Research Corporation (OAR).
-@c All rights reserved.
-@c
-@c $Id$
-@c
-
-
-@node Memory Requirements, Memory Requirements Introduction, Processor Dependent Information Table CPU Dependent Information Table, Top
-
-@chapter Memory Requirements
-@ifinfo
-@menu
-* Memory Requirements Introduction::
-* Memory Requirements Data Space Requirements::
-* Memory Requirements Minimum and Maximum Code Space Requirements::
-* Memory Requirements RTEMS Code Space Worksheet::
-* Memory Requirements RTEMS RAM Workspace Worksheet::
-@end menu
-@end ifinfo
-
-
-@node Memory Requirements Introduction, Memory Requirements Data Space Requirements, Memory Requirements, Memory Requirements
-
-@section Introduction
-
-Memory is typically a limited resource in real-time
-embedded systems, therefore, RTEMS can be configured to utilize
-the minimum amount of memory while meeting all of the
-applications requirements. Worksheets are provided which allow
-the RTEMS application developer to determine the amount of RTEMS
-code and RAM workspace which is required by the particular
-configuration. Also provided are the minimum code space,
-maximum code space, and the constant data space required by
-RTEMS.
-
-
-@node Memory Requirements Data Space Requirements, Memory Requirements Minimum and Maximum Code Space Requirements, Memory Requirements Introduction, Memory Requirements
-
-@section Data Space Requirements
-
-RTEMS requires a small amount of memory for its
-private variables. This data area must be in RAM and is
-separate from the RTEMS RAM Workspace. The following
-illustrates the data space required for all configurations of
-RTEMS:
-
-@itemize @bullet
-@item Data Space: na
-@end itemize
-
-
-@node Memory Requirements Minimum and Maximum Code Space Requirements, Memory Requirements RTEMS Code Space Worksheet, Memory Requirements Data Space Requirements, Memory Requirements
-
-@section Minimum and Maximum Code Space Requirements
-
-A maximum configuration of RTEMS includes the core
-and all managers, including the multiprocessing manager.
-Conversely, a minimum configuration of RTEMS includes only the
-core and the following managers: initialization, task, interrupt
-and fatal error. The following illustrates the code space
-required by these configurations of RTEMS:
-
-@itemize @bullet
-@item Minimum Configuration: na
-@item Maximum Configuration: na
-@end itemize
-
-
-@node Memory Requirements RTEMS Code Space Worksheet, Memory Requirements RTEMS RAM Workspace Worksheet, Memory Requirements Minimum and Maximum Code Space Requirements, Memory Requirements
-
-@section RTEMS Code Space Worksheet
-
-The RTEMS Code Space Worksheet is a tool provided to
-aid the RTEMS application designer to accurately calculate the
-memory required by the RTEMS run-time environment. RTEMS allows
-the custom configuration of the executive by optionally
-excluding managers which are not required by a particular
-application. This worksheet provides the included and excluded
-size of each manager in tabular form allowing for the quick
-calculation of any custom configuration of RTEMS. The RTEMS
-Code Space Worksheet is below:
-
-@ifset use-ascii
-@page
-@end ifset
-@ifset use-tex
-@page
-@end ifset
-
-@page
-@center @b{RTEMS Code Space Worksheet}
-@sp 1
-
-@ifset use-ascii
-
-The following is a list of the components of the RTEMS code space. The first
-number in parentheses is the size when the component is included,
-while the second number indicates its size when not included. If the second
-number is "NA", then the component must always be included.
-
-@itemize @bullet
-@item Core (na, NA)
-@item Initialization (na, NA)
-@item Task (na, NA)
-@item Interrupt (na, NA)
-@item Clock (na, NA)
-@item Timer (na, na)
-@item Semaphore (na, na)
-@item Message (na, na)
-@item Event (na, na)
-@item Signal (na, na)
-@item Partition (na, na)
-@item Region (na, na)
-@item Dual Ported Memory (na, na)
-@item I/O (na, na)
-@item Fatal Error (na, NA)
-@item Rate Monotonic (na, na)
-@item Multiprocessing (na, na)
-@end itemize
-@end ifset
-
-@ifset use-tex
-
-@tex
-\line{\hskip 0.50in\vbox{\offinterlineskip\halign{
-\vrule\strut#&
-\hbox to 2.25in{\enskip\hfil#\hfil}&
-\vrule#&
-\hbox to 1.00in{\enskip\hfil#\hfil}&
-\vrule#&
-\hbox to 1.00in{\enskip\hfil#\hfil}&
-\vrule#&
-\hbox to 1.25in{\enskip\hfil#\hfil}&
-\vrule#\cr
-\noalign{\hrule}
-&\bf Component && \bf Included && \bf Not Included && \bf Size &\cr\noalign{\hrule}
-&Core && na && NA && &\cr\noalign{\hrule}
-&Initialization && na && NA && &\cr\noalign{\hrule}
-&Task && na && NA && &\cr\noalign{\hrule}
-&Interrupt && na && NA && &\cr\noalign{\hrule}
-&Clock && na && NA && &\cr\noalign{\hrule}
-&Timer && na && na && &\cr\noalign{\hrule}
-&Semaphore && na && na && &\cr\noalign{\hrule}
-&Message && na && na && &\cr\noalign{\hrule}
-&Event && na && na && &\cr\noalign{\hrule}
-&Signal && na && na && &\cr\noalign{\hrule}
-&Partition && na && na && &\cr\noalign{\hrule}
-&Region && na && na && &\cr\noalign{\hrule}
-&Dual Ported Memory && na && na && &\cr\noalign{\hrule}
-&I/O && na && na && &\cr\noalign{\hrule}
-&Fatal Error && na && NA && &\cr\noalign{\hrule}
-&Rate Monotonic && na && na && &\cr\noalign{\hrule}
-&Multiprocessing && na && na && &\cr\noalign{\hrule}
-&\multispan 5 \bf\hfil Total Code Space Requirements\qquad\hfil&&&\cr\noalign{\hrule}
-}}\hfil}
-@end tex
-@end ifset
-
-@ifset use-html
-@html
-<CENTER>
- <TABLE COLS=4 WIDTH="80%" BORDER=2>
-<TR><TD ALIGN=center><STRONG>Component</STRONG></TD>
- <TD ALIGN=center><STRONG>Included</STRONG></TD>
- <TD ALIGN=center><STRONG>Not Included</STRONG></TD>
- <TD ALIGN=center><STRONG>Size</STRONG></TD></TR>
-<TR><TD ALIGN=center>Core</TD>
- <TD ALIGN=center>na</TD>
- <TD ALIGN=center>NA</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=center>Initialization</TD>
- <TD ALIGN=center>na</TD>
- <TD ALIGN=center>NA</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=center>Task</TD>
- <TD ALIGN=center>na</TD>
- <TD ALIGN=center>NA</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=center>Interrupt</TD>
- <TD ALIGN=center>na</TD>
- <TD ALIGN=center>NA</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=center>Clock</TD>
- <TD ALIGN=center>na</TD>
- <TD ALIGN=center>NA</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=center>Timer</TD>
- <TD ALIGN=center>na</TD>
- <TD ALIGN=center>na</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=center>Semaphore</TD>
- <TD ALIGN=center>na</TD>
- <TD ALIGN=center>na</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=center>Message</TD>
- <TD ALIGN=center>na</TD>
- <TD ALIGN=center>na</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=center>Event</TD>
- <TD ALIGN=center>na</TD>
- <TD ALIGN=center>na</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=center>Signal</TD>
- <TD ALIGN=center>na</TD>
- <TD ALIGN=center>na</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=center>Partition</TD>
- <TD ALIGN=center>na</TD>
- <TD ALIGN=center>na</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=center>Region</TD>
- <TD ALIGN=center>na</TD>
- <TD ALIGN=center>na</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=center>Dual Ported Memory</TD>
- <TD ALIGN=center>na</TD>
- <TD ALIGN=center>na</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=center>I/O</TD>
- <TD ALIGN=center>na</TD>
- <TD ALIGN=center>na</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=center>Fatal Error</TD>
- <TD ALIGN=center>na</TD>
- <TD ALIGN=center>NA</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=center>Rate Monotonic</TD>
- <TD ALIGN=center>na</TD>
- <TD ALIGN=center>na</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=center>Multiprocessing</TD>
- <TD ALIGN=center>na</TD>
- <TD ALIGN=center>na</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=center COLSPAN=3>
- <STRONG>Total Code Space Requirements</STRONG></TD>
- <TD><BR></TD></TR>
- </TABLE>
-</CENTER>
-@end html
-@end ifset
-
-@page
-
-@c ****** Next node is set by a sed script in the document Makefile.
-@c ****** This comment is here to remind you not to edit the wksheets.t
-@c ****** in any directory but common.
-
-
-@node Memory Requirements RTEMS RAM Workspace Worksheet, Timing Specification, Memory Requirements RTEMS Code Space Worksheet, Memory Requirements
-
-@section RTEMS RAM Workspace Worksheet
-
-The RTEMS RAM Workspace Worksheet is a tool provided
-to aid the RTEMS application designer to accurately calculate
-the minimum memory block to be reserved for RTEMS use. This
-worksheet provides equations for calculating the amount of
-memory required based upon the number of objects configured,
-whether for single or multiple processor versions of the
-executive. This information is presented in tabular form, along
-with the fixed system requirements, allowing for quick
-calculation of any application defined configuration of RTEMS.
-The RTEMS RAM Workspace Worksheet is provided below:
-
-@ifset use-ascii
-@page
-@end ifset
-@ifset use-tex
-@sp 2
-@end ifset
-
-@center @b{RTEMS RAM Workspace Worksheet}
-@sp 2
-
-@ifset use-ascii
-The total RTEMS RAM Workspace required is the sum of the following:
-
-@itemize @bullet
-@item maximum_tasks * na
-@item maximum_timers * na
-@item maximum_semaphores * na
-@item maximum_message_queues * na
-@item maximum_regions * na
-@item maximum_partitions * na
-@item maximum_ports * na
-@item maximum_periods * na
-@item maximum_extensions * na
-@item Floating Point Tasks * na
-@item Task Stacks
-@item maximum_nodes * na
-@item maximum_global_objects * na
-@item maximum_proxies * na
-@item Fixed System Requirements of na
-@end itemize
-@end ifset
-
-@ifset use-tex
-@tex
-\line{\hskip 0.75in\vbox{\offinterlineskip\halign{
-\vrule\strut#&
-\hbox to 3.0in{\enskip\hfil#\hfil}&
-\vrule#&
-\hbox to 0.75in{\enskip\hfil#\hfil}&
-\vrule#&
-\hbox to 1.25in{\enskip\hfil#\hfil}&
-\vrule#\cr
-\noalign{\hrule}
-& \bf Description && \bf Equation && \bf Bytes Required &\cr\noalign{\hrule}
-& maximum\_tasks && * na = &&&\cr\noalign{\hrule}
-& maximum\_timers && * na = &&&\cr\noalign{\hrule}
-& maximum\_semaphores && * na = &&&\cr\noalign{\hrule}
-& maximum\_message\_queues && * na = &&&\cr\noalign{\hrule}
-& maximum\_regions && * na = &&&\cr\noalign{\hrule}
-& maximum\_partitions && * na = &&&\cr\noalign{\hrule}
-& maximum\_ports && * na = &&&\cr\noalign{\hrule}
-& maximum\_periods && * na = &&&\cr\noalign{\hrule}
-& maximum\_extensions && * na = &&&\cr\noalign{\hrule}
-& Floating Point Tasks && * na = &&&\cr\noalign{\hrule}
-& Task Stacks &&\hskip 2.3em=&&&\cr\noalign{\hrule}
-& Total Single Processor Requirements &&&&&\cr\noalign{\hrule}
-}}\hfil}
-
-\line{\hskip 0.75in\vbox{\offinterlineskip\halign{
-\vrule\strut#&
-\hbox to 3.0in{\enskip\hfil#\hfil}&
-\vrule#&
-\hbox to 0.75in{\enskip\hfil#\hfil}&
-\vrule#&
-\hbox to 1.25in{\enskip\hfil#\hfil}&
-\vrule#\cr
-\noalign{\hrule}
-& \bf Description && \bf Equation && \bf Bytes Required &\cr\noalign{\hrule}
-& maximum\_nodes && * na = &&&\cr\noalign{\hrule}
-& maximum\_global\_objects && * na = &&&\cr\noalign{\hrule}
-& maximum\_proxies && * na = &&&\cr\noalign{\hrule}
-}}\hfil}
-
-\line{\hskip 0.75in\vbox{\offinterlineskip\halign{
-\vrule\strut#&
-\hbox to 3.0in{\enskip\hfil#\hfil}&
-\vrule#&
-\hbox to 0.75in{\enskip\hfil#\hfil}&
-\vrule#&
-\hbox to 1.25in{\enskip\hfil#\hfil}&
-\vrule#\cr
-\noalign{\hrule}
-& Total Multiprocessing Requirements &&&&&\cr\noalign{\hrule}
-& Fixed System Requirements && na &&&\cr\noalign{\hrule}
-& Total Single Processor Requirements &&&&&\cr\noalign{\hrule}
-& Total Multiprocessing Requirements &&&&&\cr\noalign{\hrule}
-& Minimum Bytes for RTEMS Workspace &&&&&\cr\noalign{\hrule}
-}}\hfil}
-@end tex
-@end ifset
-
-@ifset use-html
-@html
-<CENTER>
- <TABLE COLS=3 WIDTH="80%" BORDER=2>
-<TR><TD ALIGN=center><STRONG>Description</STRONG></TD>
- <TD ALIGN=center><STRONG>Equation</STRONG></TD>
- <TD ALIGN=center><STRONG>Bytes Required</STRONG></TD></TR>
-<TR><TD ALIGN=left>maximum_tasks</TD>
- <TD ALIGN=right>* na =</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=left>maximum_timers</TD>
- <TD ALIGN=right>* na =</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=left>maximum_semaphores</TD>
- <TD ALIGN=right>* na =</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=left>maximum_message_queues</TD>
- <TD ALIGN=right>* na =</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=left>maximum_regions</TD>
- <TD ALIGN=right>* na =</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=left>maximum_partitions</TD>
- <TD ALIGN=right>* na =</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=left>maximum_ports</TD>
- <TD ALIGN=right>* na =</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=left>maximum_periods</TD>
- <TD ALIGN=right>* na =</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=left>maximum_extensions</TD>
- <TD ALIGN=right>* na =</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=left>Floating Point Tasks</TD>
- <TD ALIGN=right>* na =</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=left COLSPAN=2>Task Stacks</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=left COLSPAN=2>
- <STRONG>Total Single Processor Requirements</STRONG></TD>
- <TD><BR></TD></TR>
-<TR></TR>
-<TR><TD ALIGN=center><STRONG>Description</STRONG></TD>
- <TD ALIGN=center><STRONG>Equation</STRONG></TD>
- <TD ALIGN=center><STRONG>Bytes Required</STRONG></TD></TR>
-<TR><TD ALIGN=left>maximum_nodes</TD>
- <TD ALIGN=right>* na =</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=left>maximum_global_objects</TD>
- <TD ALIGN=right>* na =</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=left>maximum_proxies</TD>
- <TD ALIGN=right>* na =</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=left COLSPAN=2>
- <STRONG>Total Multiprocessing Requirements</STRONG></TD>
- <TD><BR></TD></TR>
-<TR></TR>
-<TR><TD ALIGN=left COLSPAN=2>Fixed System Requirements</TD>
- <TD ALIGN=center>na</TD></TR>
-<TR><TD ALIGN=left COLSPAN=2>Total Single Processor Requirements</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=left COLSPAN=2>Total Multiprocessing Requirements</TD>
- <TD><BR></TD></TR>
-<TR><TD ALIGN=left COLSPAN=2>
- <STRONG>Minimum Bytes for RTEMS Workspace</STRONG></TD>
- <TD><BR></TD></TR>
- </TABLE>
-</CENTER>
-@end html
-@end ifset
-
-