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Annotation of researchv10dc/dist/man/v4/manx/profil.2, revision 1.1.1.1

1.1       root        1: .pa 1
                      2: .he 'PROFIL (II)'3/7/73'PROFIL (II)'
                      3: .ti 0
                      4: NAME           profil -- execution time profile
                      5: .s3
                      6: .ti 0
                      7: SYNOPSIS       profil = 44.            / not in assembler
                      8: .br
                      9: sys    profil; buff; bufsiz; offset; scale
                     10: .s3
                     11: .ti 0
                     12: DESCRIPTION    buff____
                     13: points to an area of core whose length (in bytes) is given by
                     14: bufsiz______.
                     15: After this call, the user's program counter (pc)
                     16: is examined each clock tick (60th second);
                     17: offset______ is subtracted from it, and the result multiplied by
                     18: scale_____.
                     19: If the resulting number corresponds to a word
                     20: inside buff____, that word is incremented.
                     21: .s3
                     22: The scale is interpreted as an unsigned,
                     23: fixed-point fraction with binary point at the
                     24: left: 177777(8) gives a 1-1 mapping of pc's to words
                     25: in buff____; 77777(8) maps each pair of instruction words
                     26: together.
                     27: 2(8) maps all instructions onto the beginning of
                     28: buff____ (producing a non-interrupting core clock).
                     29: .s3
                     30: Profiling is turned off by giving a scale_____ of 0 or 1.
                     31: It is rendered
                     32: inffective by giving a bufsiz______ of 0.
                     33: .s3
                     34: .ti 0
                     35: SEE ALSO       [profiling subroutines]
                     36: .s3
                     37: .ti 0
                     38: BUGS           Profiling must be turned off before
                     39: an exec____(II), since incrementation of
                     40: the buffer is not automatically stopped.

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