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| author | Ulrich Drepper <drepper@redhat.com> | 2001-08-30 02:13:26 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2001-08-30 02:13:26 +0000 |
| commit | 746802f20fae7bd377ce5d7aa9114357af48e178 (patch) | |
| tree | f8e4c7456aedf677054c4491264435137daa0d64 /linuxthreads/sysdeps/i386/i686/pt-machine.h | |
| parent | 6c3ebebd1eddb7041248125fa5e228380400c436 (diff) | |
| download | glibc-746802f20fae7bd377ce5d7aa9114357af48e178.tar.gz glibc-746802f20fae7bd377ce5d7aa9114357af48e178.tar.xz glibc-746802f20fae7bd377ce5d7aa9114357af48e178.zip | |
Update.
2001-08-29 Ulrich Drepper <drepper@redhat.com> * spinlock.c (__pthread_lock): Top max_count value with MAX_ADAPTIVE_SPIN_COUNT. * internals.h (MAX_ADAPTIVE_SPIN_COUNT): Define if not already done. * sysdeps/i386/i686/pt-machine.h (BUSY_WAIT_NOP): New macro to help P4.
Diffstat (limited to 'linuxthreads/sysdeps/i386/i686/pt-machine.h')
| -rw-r--r-- | linuxthreads/sysdeps/i386/i686/pt-machine.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/linuxthreads/sysdeps/i386/i686/pt-machine.h b/linuxthreads/sysdeps/i386/i686/pt-machine.h index 7df3e7e487..c7396024bb 100644 --- a/linuxthreads/sysdeps/i386/i686/pt-machine.h +++ b/linuxthreads/sysdeps/i386/i686/pt-machine.h @@ -64,3 +64,6 @@ __compare_and_swap (long int *p, long int oldval, long int newval) #if __ASSUME_LDT_WORKS > 0 #include "../useldt.h" #endif + +/* The P4 and above really want some help to prevent overheating. */ +#define BUSY_WAIT_NOP __asm__ ("rep; nop") |