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freebsd-ports/benchmarks/smhasher/files/patch-smhasher-Platform.cpp
George V. Neville-Neil 016b2b0fbf Add SMHasher hashing benchmark and test system as a new port.
SMHasher is a test suite designed to test the distribution, collision,
and performance properties of non-cryptographic hash functions -
it aims to be the "DieHarder" of hash testing, and does a pretty
good job of finding flaws with a number of popular hashes.

The SMHasher suite also includes MurmurHash3, which is the latest
version in the series of MurmurHash functions - the new version is
faster, more robust, and its variants can produce 32- and 128-bit
hash values efficiently on both x86 and x64 platforms.

https://code.google.com/p/smhasher/
2015-03-31 20:25:23 +00:00

42 lines
860 B
C++

--- Platform.cpp 2015-03-30 17:26:46.000000000 -0400
+++ Platform.cpp.new 2015-03-30 17:26:56.000000000 -0400
@@ -19,6 +19,38 @@
SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_HIGHEST);
}
+#elif __FreeBSD__
+
+#include <string.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/cpuset.h>
+
+void
+SetAffinity(int cpu)
+{
+ cpuset_t mask;
+ unsigned int i;
+
+ fprintf(stdout, "SetAffinity called with arg %d\n", cpu);
+
+ CPU_ZERO(&mask);
+ i = 0;
+ do {
+ if (cpu & 1) {
+ CPU_SET(i, &mask);
+ }
+ i++;
+ cpu >>= 1;
+ } while (cpu);
+
+ if (cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1, sizeof(cpuset_t), &mask) == -1)
+ {
+ fprintf(stderr, "SetAffinity() failed. %s", strerror(errno));
+ }
+}
+
#else
#include <sched.h>