diff options
| author | dg <dg@FreeBSD.org> | 1996-04-06 01:06:06 +0000 |
|---|---|---|
| committer | dg <dg@FreeBSD.org> | 1996-04-06 01:06:06 +0000 |
| commit | ecbbba2d2cd1916ea87c2ee41e48d5b94a9529d2 (patch) | |
| tree | c77234f399b351489e6020e8949bb5dc08cd89af /sys | |
| parent | cee099d9b026d72d1ef813af34a1c5c2feb81def (diff) | |
| download | FreeBSD-src-ecbbba2d2cd1916ea87c2ee41e48d5b94a9529d2.zip FreeBSD-src-ecbbba2d2cd1916ea87c2ee41e48d5b94a9529d2.tar.gz | |
Switch 586/686 back to generic_bzero and #if 0'd the "optimized" code. It
turns out that it actually reduces performance in real-world cases.
Noticed by: bde
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/amd64/amd64/machdep.c | 4 | ||||
| -rw-r--r-- | sys/amd64/amd64/support.S | 4 | ||||
| -rw-r--r-- | sys/amd64/amd64/support.s | 4 | ||||
| -rw-r--r-- | sys/i386/i386/machdep.c | 4 | ||||
| -rw-r--r-- | sys/i386/i386/support.s | 4 |
5 files changed, 11 insertions, 9 deletions
diff --git a/sys/amd64/amd64/machdep.c b/sys/amd64/amd64/machdep.c index acf456c..d513292 100644 --- a/sys/amd64/amd64/machdep.c +++ b/sys/amd64/amd64/machdep.c @@ -35,7 +35,7 @@ * SUCH DAMAGE. * * from: @(#)machdep.c 7.4 (Berkeley) 6/3/91 - * $Id: machdep.c,v 1.179 1996/03/26 19:57:51 wollman Exp $ + * $Id: machdep.c,v 1.180 1996/04/05 03:36:02 ache Exp $ */ #include "npx.h" @@ -578,7 +578,6 @@ identifycpu() ((100 * i586_ctr_rate) >> I586_CTR_RATE_SHIFT) / 100, ((100 * i586_ctr_rate) >> I586_CTR_RATE_SHIFT) % 100); printf("586"); - bzero = i586_bzero; break; #endif #if defined(I686_CPU) @@ -587,7 +586,6 @@ identifycpu() ((100 * i586_ctr_rate) >> I586_CTR_RATE_SHIFT) / 100, ((100 * i586_ctr_rate) >> I586_CTR_RATE_SHIFT) % 100); printf("686"); - bzero = i686_bzero; break; #endif default: diff --git a/sys/amd64/amd64/support.S b/sys/amd64/amd64/support.S index df32d00..91a3b96 100644 --- a/sys/amd64/amd64/support.S +++ b/sys/amd64/amd64/support.S @@ -30,7 +30,7 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * $Id: support.s,v 1.31 1995/12/28 23:14:40 davidg Exp $ + * $Id: support.s,v 1.32 1996/03/31 04:05:03 bde Exp $ */ #include "assym.s" /* system definitions */ @@ -169,6 +169,7 @@ do0: ret #endif +#if 0 /* Actually lowers performance in real-world cases */ #if defined(I586_CPU) || defined(I686_CPU) ALTENTRY(i586_bzero) ENTRY(i686_bzero) @@ -227,6 +228,7 @@ ENTRY(i686_bzero) popl %edi ret #endif +#endif /* fillw(pat, base, cnt) */ ENTRY(fillw) diff --git a/sys/amd64/amd64/support.s b/sys/amd64/amd64/support.s index df32d00..91a3b96 100644 --- a/sys/amd64/amd64/support.s +++ b/sys/amd64/amd64/support.s @@ -30,7 +30,7 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * $Id: support.s,v 1.31 1995/12/28 23:14:40 davidg Exp $ + * $Id: support.s,v 1.32 1996/03/31 04:05:03 bde Exp $ */ #include "assym.s" /* system definitions */ @@ -169,6 +169,7 @@ do0: ret #endif +#if 0 /* Actually lowers performance in real-world cases */ #if defined(I586_CPU) || defined(I686_CPU) ALTENTRY(i586_bzero) ENTRY(i686_bzero) @@ -227,6 +228,7 @@ ENTRY(i686_bzero) popl %edi ret #endif +#endif /* fillw(pat, base, cnt) */ ENTRY(fillw) diff --git a/sys/i386/i386/machdep.c b/sys/i386/i386/machdep.c index acf456c..d513292 100644 --- a/sys/i386/i386/machdep.c +++ b/sys/i386/i386/machdep.c @@ -35,7 +35,7 @@ * SUCH DAMAGE. * * from: @(#)machdep.c 7.4 (Berkeley) 6/3/91 - * $Id: machdep.c,v 1.179 1996/03/26 19:57:51 wollman Exp $ + * $Id: machdep.c,v 1.180 1996/04/05 03:36:02 ache Exp $ */ #include "npx.h" @@ -578,7 +578,6 @@ identifycpu() ((100 * i586_ctr_rate) >> I586_CTR_RATE_SHIFT) / 100, ((100 * i586_ctr_rate) >> I586_CTR_RATE_SHIFT) % 100); printf("586"); - bzero = i586_bzero; break; #endif #if defined(I686_CPU) @@ -587,7 +586,6 @@ identifycpu() ((100 * i586_ctr_rate) >> I586_CTR_RATE_SHIFT) / 100, ((100 * i586_ctr_rate) >> I586_CTR_RATE_SHIFT) % 100); printf("686"); - bzero = i686_bzero; break; #endif default: diff --git a/sys/i386/i386/support.s b/sys/i386/i386/support.s index df32d00..91a3b96 100644 --- a/sys/i386/i386/support.s +++ b/sys/i386/i386/support.s @@ -30,7 +30,7 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * $Id: support.s,v 1.31 1995/12/28 23:14:40 davidg Exp $ + * $Id: support.s,v 1.32 1996/03/31 04:05:03 bde Exp $ */ #include "assym.s" /* system definitions */ @@ -169,6 +169,7 @@ do0: ret #endif +#if 0 /* Actually lowers performance in real-world cases */ #if defined(I586_CPU) || defined(I686_CPU) ALTENTRY(i586_bzero) ENTRY(i686_bzero) @@ -227,6 +228,7 @@ ENTRY(i686_bzero) popl %edi ret #endif +#endif /* fillw(pat, base, cnt) */ ENTRY(fillw) |
