arch/ia64/include/asm/shmparam.h

   1 #ifndef _ASM_IA64_SHMPARAM_H
   2 #define _ASM_IA64_SHMPARAM_H
   3
   4 /*
   5  * SHMLBA controls minimum alignment at which shared memory segments
   6  * get attached.  The IA-64 architecture says that there may be a
   7  * performance degradation when there are virtual aliases within 1MB.
   8  * To reduce the chance of this, we set SHMLBA to 1MB. --davidm 00/12/20
   9  */
  10 #define SHMLBA  (1024*1024)
  11
  12 #endif /* _ASM_IA64_SHMPARAM_H */