mtr on FreeBSD detects core count for --parallel=auto

Author: DaveGosselin-MariaDB

mysql-test/lib/My/Platform.pm

@@ -23,7 +23,7 @@ use File::Path;
 use Carp;
 
 use base qw(Exporter);
-our @EXPORT= qw(IS_CYGWIN IS_MSYS IS_WINDOWS IS_WIN32PERL IS_AIX IS_MAC
+our @EXPORT= qw(IS_CYGWIN IS_MSYS IS_WINDOWS IS_WIN32PERL IS_AIX IS_MAC IS_FREEBSD
 		native_path posix_path mixed_path
                 check_socket_path_length process_alive open_for_append);
 
@@ -79,6 +79,15 @@ BEGIN {
   }
 }
 
+BEGIN {
+  if ($^O eq "freebsd") {
+    eval 'sub IS_FREEBSD { 1 }';
+  }
+  else {
+    eval 'sub IS_FREEBSD { 0 }';
+  }
+}
+
 #
 # native_path
 # Convert from path format used by perl to the underlying

mysql-test/mysql-test-run.pl

@@ -427,7 +427,7 @@ sub main {
     {
       $opt_parallel= $ENV{NUMBER_OF_PROCESSORS} || 1;
     }
-    elsif (IS_MAC)
+    elsif (IS_MAC || IS_FREEBSD)
     {
       $opt_parallel= `sysctl -n hw.ncpu`;
     }