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(ARCDENSITY): Bump to 3. Define ARCINDEX. Bump MAXARCS to 1 << 20. (struct tostruct): Use ACRINDEX as type for link field. (statuc gmonparam): Likewise for froms.

This commit is contained in:
Ulrich Drepper 2002-08-29 09:27:23 +00:00
parent 86ad5f0cf5
commit a363f8a426
1 changed files with 34 additions and 8 deletions
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42
gmon/sys/gmon.h
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@ -96,17 +96,43 @@ extern struct __bb *__bb_head;
#define HASHFRACTION 2
/*
* percent of text space to allocate for tostructs with a minimum.
* Percent of text space to allocate for tostructs.
* This is a heuristic; we will fail with a warning when profiling programs
* with a very large number of very small functions, but that's
* normally OK.
* 2 is probably still a good value for normal programs.
* Profiling a test case with 64000 small functions will work if
* you raise this value to 3 and link statically (which bloats the
* text size, thus raising the number of arcs expected by the heuristic).
*/
#define ARCDENSITY 3
/*
* Always allocate at least this many tostructs. This
* hides the inadequacy of the ARCDENSITY heuristic, at least
* for small programs.
*/
#define ARCDENSITY 2
#define MINARCS 50
#define MAXARCS ((1 << (8 * sizeof(HISTCOUNTER))) - 2)
/*
* The type used to represent indices into gmonparam.tos[].
*/
#define ARCINDEX u_long
/*
* Maximum number of arcs we want to allow.
* Used to be max representable value of ARCINDEX minus 2, but now
* that ARCINDEX is a long, that's too large; we don't really want
* to allow a 48 gigabyte table.
* The old value of 1<<16 wasn't high enough in practice for large C++
* programs; will 1<<20 be adequate for long? FIXME
*/
#define MAXARCS (1 << 20)
struct tostruct {
u_long selfpc;
long count;
u_short link;
u_short pad;
u_long selfpc;
long count;
ARCINDEX link;
};
/*
@ -132,7 +158,7 @@ struct gmonparam {
long int state;
u_short *kcount;
u_long kcountsize;
u_short *froms;
ARCINDEX *froms;
u_long fromssize;
struct tostruct *tos;
u_long tossize;