JehanneOS/mksh
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

lesson learned from http://k1024.org/~iusty/blog/entry/perf-null/ – add -DMKSH_SMALL_BUT_FAST which gives more speed (8/20K less cycles, 5/9K less insns, 1.8/2.4k less branches, 65/275 less branch misses) on Debian/amd64 (klibc-static/eglibc) at cost of 0/2 more page faults and 6K/6K more text size

Browse Source
This commit is contained in:
tg
2012-07-01 15:55:00 +00:00
parent 798cfdc982
commit 4778a2a62f
7 changed files with 19 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
sh.h
View File

@@ -157,9 +157,9 @@
#endif
#ifdef EXTERN
__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.571 2012/07/01 15:44:31 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.572 2012/07/01 15:54:57 tg Exp $");
#endif
#define MKSH_VERSION "R40 2012/06/28"
#define MKSH_VERSION "R40 2012/07/01"
/* arithmetic types: C implementation */
#if !HAVE_CAN_INTTYPES
@@ -498,7 +498,7 @@ im_sorry_dave(void)
(dst) = (src) + utf_ptradj(src); \
} while (/* CONSTCOND */ 0)
#ifdef MKSH_SMALL
#if defined(MKSH_SMALL) && !defined(MKSH_SMALL_BUT_FAST)
#define strdupx(d, s, ap) do { \
(d) = strdup_i((s), (ap)); \
} while (/* CONSTCOND */ 0)
@@ -1859,7 +1859,7 @@ char *do_realpath(const char *);
void simplify_path(char *);
void set_current_wd(const char *);
int c_cd(const char **);
#ifdef MKSH_SMALL
#if defined(MKSH_SMALL) && !defined(MKSH_SMALL_BUT_FAST)
char *strdup_i(const char *, Area *);
char *strndup_i(const char *, size_t, Area *);
#endif
@@ -1877,7 +1877,7 @@ ssize_t shf_read(char *, ssize_t, struct shf *);
char *shf_getse(char *, ssize_t, struct shf *);
int shf_getchar(struct shf *s);
int shf_ungetc(int, struct shf *);
#ifdef MKSH_SMALL
#if defined(MKSH_SMALL) && !defined(MKSH_SMALL_BUT_FAST)
int shf_getc(struct shf *);
int shf_putc(int, struct shf *);
#else