Update autotest tests to use make -j where possible.

client/site_tests/hardware_SAT/hardware_SAT.py

 # Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import logging, os, re
 
 from autotest_lib.client.bin import test, utils
 from autotest_lib.client.common_lib import error
 
 class hardware_SAT(test.test):
@@ skipping 30 matching lines @@
             var_flags += ' CXXFLAGS="-nopie ' + cflags + '"'
             var_flags += ' CFLAGS="-nopie ' + cflags + '"'
         else:
             var_flags += ' CXXFLAGS="' + cflags + '"'
             var_flags += ' CFLAGS="' + cflags + '"'
         var_flags += ' LIBS="-static -laio"'
 
         os.chdir(self.srcdir)
         # ./configure stores relevant path and environment variables.
         utils.configure(configure=var_flags + ' ./configure')
-        utils.system('make -j %d' % utils.count_cpus())
+        utils.make()
 
 
     def run_once(self, seconds=60):
         # Allow shmem access to all of memory. This is used for 32 bit
         # access to > 1.4G. Virtual address space limitation prevents
         # directly mapping the memory.
         utils.run('mount -o remount,size=100% /dev/shm')
         cpus = max(utils.count_cpus(), 1)
         mbytes = max(int(utils.freememtotal() * .95 / 1024), 512)
         # SAT should use as much memory as possible, while still
@@ skipping 17 matching lines @@
         # or disk cache problems. Two threads ensure multiple
         # outstanding transactions to the disk, if supported.
         args += ' -f sat.diskthread.a'  # disk thread
         args += ' -f sat.diskthread.b'
 
         os.chdir(os.path.join(self.srcdir, 'src'))
         sat = utils.run('./stressapptest' + args)
         logging.debug(sat.stdout)
         if not re.search('Status: PASS', sat.stdout):
             raise error.TestFail(sat.stdout)