[Assorted-commits] SF.net SVN: assorted: [394] numa-bench/trunk/src

[<yan...@us...>]

Revision: 394
          http://assorted.svn.sourceforge.net/assorted/?rev=394&view=rev
Author:   yangzhang
Date:     2008-02-12 11:16:18 -0800 (Tue, 12 Feb 2008)

Log Message:
-----------
added custom_alloc test

Modified Paths:
--------------
    numa-bench/trunk/src/Makefile

Added Paths:
-----------
    numa-bench/trunk/src/custom_alloc.cc

Modified: numa-bench/trunk/src/Makefile
===================================================================
--- numa-bench/trunk/src/Makefile	2008-02-12 18:01:24 UTC (rev 393)
+++ numa-bench/trunk/src/Makefile	2008-02-12 19:16:18 UTC (rev 394)
@@ -16,6 +16,9 @@
 threads: threads.cc $(COMMONS)
 	$(CXX)
 
+custom_alloc: custom_alloc.cc
+	$(CXX)
+
 openmp: openmp.cc
 	$(CXX) -fopenmp
 

Added: numa-bench/trunk/src/custom_alloc.cc
===================================================================
--- numa-bench/trunk/src/custom_alloc.cc	                        (rev 0)
+++ numa-bench/trunk/src/custom_alloc.cc	2008-02-12 19:16:18 UTC (rev 394)
@@ -0,0 +1,60 @@
+// TODO: add in test of tbb allocator.
+
+#include <commons/region.h>
+#include <commons/time.h>
+#include <commons/boost/threads.h>
+#include <boost/bind.hpp>
+
+using namespace boost;
+using namespace commons;
+
+void
+f(region_alloc<int>* a, int count)
+{
+  timer t("region: ");
+  int* j = NULL;
+  for (int i = 0; i < count; i++) {
+    j = a->allocate(1);
+  }
+  t.print();
+  cout << j << endl;
+}
+
+void
+g(int count)
+{
+  timer t("new: ");
+  int* j = NULL;
+  for (int i = 0; i < count; i++) {
+    j = new int;
+  }
+  t.print();
+  cout << j << endl;
+}
+
+int
+main()
+{
+  int ncores = 16;
+  int count = 1000000;
+  pthread_t ts[ncores];
+
+  // This is much faster.
+  {
+    region_alloc<int> as[ncores];
+    for (int i = 0; i < ncores; i++) {
+      check((ts[i] = spawn(bind(f, &as[i], count))) != 0);
+    }
+    waitall(ts, ncores);
+  }
+
+  // This is much slower.
+  {
+    for (int i = 0; i < ncores; i++) {
+      check((ts[i] = spawn(bind(g, count))) != 0);
+    }
+    waitall(ts, ncores);
+  }
+
+  return 0;
+}


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