[dotest] Remove multiprocessing

Now that the Xcode project is removed, I want to focus on dotest as a
test framework, and remove its driver capabilities for which we already
rely on llvm's lit. Removing multiprocessing is the first step in that
direction.

Differential revision: https://reviews.llvm.org/D65311

llvm-svn: 367331

lldb/docs/resources/test.rst

@@ -88,22 +88,6 @@ Many more options that are available. To see a list of all of them, run:
 
    > python dotest.py -h
 
-The ``dotest.py`` script runs tests in parallel by default. To disable the
-parallel test running feature, use the ``--no-multiprocess`` flag. The number
-of concurrent tests is controlled by the ``LLDB_TEST_THREADS`` environment
-variable or the ``--threads command`` line parameter. The default value is the
-number of CPU cores on your system.
-
-The parallel test running feature will handle an additional ``--test-subdir
-SUBDIR`` arg. When specified, ``SUBDIR`` is relative to the root test directory
-and will limit all parallel test running to that subdirectory's tree of tests.
-
-The parallel test runner will run all tests within a given directory serially,
-but will run multiple directories concurrently. Thus, as a test writer, we
-provide serialized test run semantics within a directory. Note child
-directories are considered entirely separate, so two child directories could be
-running in parallel with a parent directory.
-
 Running the Test Suite Remotely
 -------------------------------
 
@@ -157,7 +141,7 @@ A quick guide to getting started with PTVS is as follows:
     #. If you want to enabled mixed mode debugging, check Enable native code debugging (this slows down debugging, so enable it only on an as-needed basis.)
 #. Set the command line for the test suite to run.
     #. Right click the project in solution explorer and choose the Debug tab.
-    #. Enter the arguments to dotest.py. Note you must add --no-multiprocess
+    #. Enter the arguments to dotest.py.
     #. Example command options:
 
 ::
@@ -178,8 +162,6 @@ A quick guide to getting started with PTVS is as follows:
    -p TestPaths.py
    # Root of test tree
    D:\src\llvm\tools\lldb\packages\Python\lldbsuite\test
-   # Required in order to be able to debug the test.
-   --no-multiprocess
 
 ::
 

lldb/packages/Python/lldbsuite/test/configuration.py

@@ -117,12 +117,6 @@
 # takes precedence.
 exclusive_test_subdir = None
 
-# Parallel execution settings
-is_inferior_test_runner = False
-num_threads = None
-no_multiprocess_test_runner = False
-test_runner_name = None
-
 # Test results handling globals
 results_filename = None
 results_port = None