Add support for FreeBSD

The memory calculations for pgbench will need to be platform specific.
Also the system data collection may have to be platform specific.  Thus
far, just added conditions so that things will run on FreeBSD now.

2 files changed, 16 insertions, 2 deletions

diff --git a/client/perffarm-client.py b/client/perffarm-client.py
index b04138d..90810e6 100755
--- a/client/perffarm-client.py
+++ b/client/perffarm-client.py
@@ -38,7 +38,10 @@ if __name__ == '__main__':
 
         collectors = MultiCollector()
 
-        collectors.register('system', LinuxCollector(OUTPUT_DIR))
+        system = os.popen("uname").readlines()[0].split()[0]
+        if system == 'Linux':
+            collectors.register('system', LinuxCollector(OUTPUT_DIR))
+
         pg_collector = PostgresCollector(OUTPUT_DIR, dbname=DATABASE_NAME,
                                          bin_path=('%s/bin' % (BUILD_PATH)))
         collectors.register('postgres', pg_collector)
diff --git a/client/utils/misc.py b/client/utils/misc.py
index fa4e54c..05a5f8b 100644
--- a/client/utils/misc.py
+++ b/client/utils/misc.py
@@ -10,7 +10,18 @@ from tempfile import TemporaryFile
 def available_ram():
     'determine amount of RAM in the system (in megabytes)'
 
-    return int(os.popen("free -m").readlines()[1].split()[1])
+    system = os.popen("uname").readlines()[0].split()[0]
+
+    if system == 'FreeBSD':
+        mem = int(os.popen("sysctl hw.physmem").readlines()[0].split()[1])
+        mem /= 1024
+        mem /= 1024
+    elif system == 'Linux':
+        mem = int(os.popen("free -m").readlines()[1].split()[1])
+    else:
+        mem = 0
+
+    return mem
 
 
 def run_cmd(args, env=None, cwd=None):