Speed up test/mjsunit/d8-os by reducing sleep times

test/mjsunit/d8-os.js

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 111 matching lines @@
       os.system("ls", ["/bin/sleep"]);
     } catch (e) {
       have_sleep = false;
     }
     try {
       os.system("ls", ["/bin/echo"]);
     } catch (e) {
       have_echo = false;
     }
     if (have_sleep) {
-      assertThrows("os.system('sleep', ['2000'], 200);", "sleep 1");
+      assertThrows("os.system('sleep', ['2000'], 20);", "sleep 1");
 
       // Check we time out with total time.
-      assertThrows("os.system('sleep', ['2000'], -1, 200);", "sleep 2");
+      assertThrows("os.system('sleep', ['2000'], -1, 20);", "sleep 2");
 
       // Check that -1 means no timeout.
-      os.system('sleep', ['1'], -1, -1);
+      os.system('sleep', ['0.1'], -1, -1);
 
     }
 
     // Check that we don't fill up the process table with zombies.
     // Disabled because it's too slow.
     if (have_echo) {
       //for (var i = 0; i < 65536; i++) {
       assertEquals("baz\n", os.system("echo", ["baz"]));
       //}
     }
@@ skipping 30 matching lines @@
     str_error("os.mkdirp(e);");
     str_error("os.setenv(e, 'goo');");
     str_error("os.setenv('goo', e);");
     str_error("os.chdir(e);");
     str_error("os.rmdir(e);");
 
   } finally {
     os.system("rm", ["-r", TEST_DIR]);
   }
 }