Mercurial > hg > graal-compiler

diff src/share/vm/gc_implementation/parallelScavenge/psVirtualspace.cpp @ 535:4e400c36026f

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
6783381: NUMA allocator: don't pretouch eden space with UseNUMA Summary: Moved pretouching to MutableSpace. Also MutableSpace now turns on page interleaving for the region it covers. Reviewed-by: jmasa, jcoomes
author iveresov
date Tue, 27 Jan 2009 18:13:59 -0800
parents 9ee9cf798b59
children 0fbdb4381b99
line wrap: on
line diff
--- a/src/share/vm/gc_implementation/parallelScavenge/psVirtualspace.cpp	Mon Jan 26 12:47:21 2009 -0800
+++ b/src/share/vm/gc_implementation/parallelScavenge/psVirtualspace.cpp	Tue Jan 27 18:13:59 2009 -0800
@@ -78,7 +78,7 @@
   _special = false;
 }
 
-bool PSVirtualSpace::expand_by(size_t bytes, bool pre_touch) {
+bool PSVirtualSpace::expand_by(size_t bytes) {
   assert(is_aligned(bytes), "arg not aligned");
   DEBUG_ONLY(PSVirtualSpaceVerifier this_verifier(this));
 
@@ -92,15 +92,6 @@
     _committed_high_addr += bytes;
   }
 
-  if (pre_touch || AlwaysPreTouch) {
-    for (char* curr = base_addr;
-         curr < _committed_high_addr;
-         curr += os::vm_page_size()) {
-      char tmp = *curr;
-      *curr = 0;
-    }
-  }
-
   return result;
 }
 
@@ -255,7 +246,7 @@
   DEBUG_ONLY(verify());
 }
 
-bool PSVirtualSpaceHighToLow::expand_by(size_t bytes, bool pre_touch) {
+bool PSVirtualSpaceHighToLow::expand_by(size_t bytes) {
   assert(is_aligned(bytes), "arg not aligned");
   DEBUG_ONLY(PSVirtualSpaceVerifier this_verifier(this));
 
@@ -269,15 +260,6 @@
     _committed_low_addr -= bytes;
   }
 
-  if (pre_touch || AlwaysPreTouch) {
-    for (char* curr = base_addr;
-         curr < _committed_high_addr;
-         curr += os::vm_page_size()) {
-      char tmp = *curr;
-      *curr = 0;
-    }
-  }
-
   return result;
 }