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| -rw-r--r-- | linuxthreads/ChangeLog | 13 |
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diff --git a/linuxthreads/ChangeLog b/linuxthreads/ChangeLog index e80114f..0335aa7 100644 --- a/linuxthreads/ChangeLog +++ b/linuxthreads/ChangeLog @@ -1,3 +1,16 @@ +2000-07-27 Jes Sorensen <jes@linuxcare.com> + + * linuxthreads/sysdeps/ia64/pspinlock.c (__pthread_spin_lock): Add + load of spin lock to prime the cache before the atomic compare and + exchange operation (cmpxchg4). This avoids the spinning on the + cmpxchg4 instruction and reduces movement of the cache line back + and forth between the processors (explanation by Asis K. Mallick + from Intel). This basically makes the implementation operate the + same as the Linux kernel implementation. + + * linuxthreads/shlib-versions: Use GLIBC_2_2 for Linux/ia64. + * linuxthreads/sysdeps/ia64/pspinlock.c: New file. + 2000-08-03 Ulrich Drepper <drepper@redhat.com> * pthread.c: Move definition of __pthread_set_own_extricate_if... |