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-
- NAME
- Amyload - graphically monitor Amiga CPU, blitter, and memory usage
-
- SYNOPSIS
- amyload [options] [ '{' [window options] [ '[' [record options] ']' ] ... '}' ] ...
-
- DESCRIPTION
- Amyload is a program which graphically displays information about
- current CPU, blitter, and memory usage of the Amiga. This
- information is displayed in one or more windows, each of which may
- display information about the usage of any or all of the following:
-
- CPU usage - The average length of the ready queue over the last
- n seconds (a settable time interval). When greater
- than 1, horizontal lines are drawn to reflect a
- change in the scale that CPU usage is being
- displayed in.
-
- Blitter usage - The fraction of time during the last interval
- that the blitter was in use.
-
- Chip memory usage - The fraction of chip memory in use.
-
- Fast memory usage - The fraction of fast memory in use.
-
- Both chip and fast memory usage - The combination of both above.
-
- Options: (spaces are ignored except between an option requiring
- an integer parameter, where there had better not be any)
-
- i<n> Set the time interval between updates to n seconds.
- Default is the current setting of load.device, which
- begins at 5 seconds, but may have been changed.
-
- t<n> Set the number of ticks per interval (at which samples
- of CPU and blitter usage are taken) to n. Default is
- the current setting of the load.device, which begins
- at 61. The interval time divided by the number of
- ticks should form an irregular number, so as to try
- to avoid aliasing problems. (e.g. 1 second / 10 ticks
- is probably a bad idea, because the device might get
- 'in sync' with some other task, and that would distort
- the results.)
-
- p<n> Set the priority of the measuring task to n. It should
- be higher than any tasks it is trying to measure.
- Default is the current setting of the load.device, which
- begins at 25.
-
- Following the options selection, window specifications may be
- given. They are introduced by the '{' character, and terminated
- by the '}' character.
-
- Window Options:
-
- =[WIDTH][xHEIGHT][{+-}XOFF[{+-}YOFF]]
- (similar to an X geometry specification)
- The '=' character introduces the specification. WIDTH
- and HEIGHT specify the WIDTH and HEIGHT of the window.
- XOFF and YOFF specify the position of the window relative
- to the screen's borders, the '+' or '-' characters
- indicating a position relative to the left or right border
- respectively of the screen in the case of XOFF, or top or
- bottom in the case of YOFF. Distances are measured between
- the screen's border and the nearest window edge, so the
- window can be placed in the lower right corner with
- specifications of -0-0 for XOFF and YOFF. No spaces
- are allowed within the geometry specification.
-
- d<n> Set the window's detail pen color to n.
-
- b<n> Set the window's block pen number to n.
-
- g<n> Set the background pen number for the window to n.
-
- After window options have been specified, one or more record
- descriptions may be specified. These are introduced with the
- '[' character, and terminated by the ']' character. The records
- specified earlier will have their data lines drawn on top of
- records specified later (first to last == foreground to
- background).
-
- Record Options:
-
- C This record will display CPU usage (really ready queue
- length). This is the default record type.
-
- b This record will display blitter usage.
-
- c This record will display chip memory usage.
-
- f This record will display fast memory usage.
-
- m This record will display all memory usage.
-
- d<n> Data lines for this record will be drawn with pen n.
-
- r<n> References lines (drawn when scaling) will be drawn with
- pen n. This is irrelevant unless the record is
- displaying CPU usage. Note that reference lines will
- be drawn behind all records, regardless of ordering,
- except that they will be drawn on top of the scaled
- record's data lines.
-
- Note that load.device MUST be in your DEVS: directory (or already
- loaded into the system).
-
- USER INTERFACE
- Standard system gadgets are present but invisible (except for the
- drag bar, see BUGS). The menu button causes the types of the
- records in the windows to be printed in the color of their data
- lines.
-
- EXAMPLES
- amyload
- - use the default setup
-
- amyload {[C]}
- - open a single window monitoring CPU usage
-
- amyload {=200x200-0-0[C]}
- - as above, but make the window 200 by 200 and put it in the
- lower right hand corner of the screen.
-
- amyload {[bd2][Cd3]}{[cd3][fd2]}
- - open one window displaying blitter usage in the foreground
- using pen 2 for drawing data lines, and CPU usage in the
- background using pen 3 for data lines and the default pen
- for scale reference lines. Open a second window with chip
- memory usage in the foreground using pen 3 for data lines,
- and fast memory usage in the background using pen 2 for
- data lines.
-
-
- DIAGNOSTICS
- Error numbers are returned, rather than a messages,
- to avoid DOS. Error numbers are:
- 1 - "Can't open graphics library"
- 2 - "Can't open intuition library"
- 3 - "Can't create message port"
- 4 - "Can't create IO request"
- 5 - "Can't open load device"
- 6 - "Can't open window"
- 7 - "Can't create load record"
- 8 - "Unexpected end of record description"
- 9 - "Unexpected end of window description"
- 10 - "Bad record flag"
- 11 - "Bad window flag"
- 12 - "Bad flag"
-
- BUGS
- When the window is activated/deactivated, the not so invisible drag
- bar is still drawn/masked. Can't seem to figure out how to avoid
- this.
-
- Doesn't do enough checking of options. May crash if bad ones
- are given, especially zeroes in the wrong places.
-
- Doesn't do a 3D representation, yet...
-
- There is a bug in the data line drawing procedure (I think it's in
- there, anyway) that causes scale lines to not be drawn over data lines
- that are just heigher than the scale line.
-
- Should use cback.o, so you don't have to 'run' it, but I haven't
- looked into that yet.
-
- Isn't Intuition friendly. Application gadget and menu support
- should be added to allow configuration after startup.
-
- SEE ALSO
- devices/load.doc
-
- AUTHOR
- Jeff Kelley
- Dept. of Computer Science
- University of Waterloo
- Waterloo, Ontario, Canada
- N2L 3G1
-
- Voice: (519)-578-4514
- UUCP: {ihnp4,watmath}!watcgl!jvkelley
- BITNET: jvkelley@cgl.waterloo.bitnet
- INTERNET: jvkelley@cgl.waterloo.edu
- EAN: jvkelley@cgl.waterloo.cdn
-
- Comments, suggestions, bug reports welcome.
-
- ACKNOWLEDGEMENTS
- Amyload was inspired by the 'xload' program for UN*X workstations
- running the X Window System, and, to a lesser extent, by 'pm' for
- the Amiga.
-
- Thanks to Matt Dillon for Dme, the Software Distillery for blink,
- Comspec for getting a 2M RAM expansion to me quickly (NACK to the
- <unnamed> company whose lies about delivery dates delayed this
- project by a couple months), everyone on USENET, and the
- visionaries who created the Amiga.
-