Trending: remove multitasking

Change-Id: Id331fb5bb1d2e5a4da9665b330b991010e5a11e2
Signed-off-by: Tibor Frank <tifrank@cisco.com>

1 files changed, 22 insertions, 68 deletions

diff --git a/resources/tools/presentation/input_data_parser.py b/resources/tools/presentation/input_data_parser.py
index 9c0e38073c..69731be9f4 100644
--- a/resources/tools/presentation/input_data_parser.py
+++ b/resources/tools/presentation/input_data_parser.py
@@ -1188,13 +1188,10 @@ class InputData(object):
 
         return checker.data
 
-    def _download_and_parse_build(self, pid, data_queue, job, build, repeat):
+    def _download_and_parse_build(self, job, build, repeat, pid=10000):
         """Download and parse the input data file.
 
         :param pid: PID of the process executing this method.
-        :param data_queue: Shared memory between processes. Queue which keeps
-            the result data. This data is then read by the main process and used
-            in further processing.
         :param job: Name of the Jenkins job which generated the processed input
             file.
         :param build: Information about the Jenkins build which generated the
@@ -1202,7 +1199,6 @@ class InputData(object):
         :param repeat: Repeat the download specified number of times if not
             successful.
         :type pid: int
-        :type data_queue: multiprocessing.Manager().Queue()
         :type job: str
         :type build: dict
         :type repeat: int
@@ -1283,14 +1279,6 @@ class InputData(object):
                                          format(full_name, repr(err))))
         logs.append(("INFO", "  Done."))
 
-        result = {
-            "data": data,
-            "state": state,
-            "job": job,
-            "build": build
-        }
-        data_queue.put(result)
-
         for level, line in logs:
             if level == "INFO":
                 logging.info(line)
@@ -1303,8 +1291,7 @@ class InputData(object):
             elif level == "WARNING":
                 logging.warning(line)
 
-        logging.info("Memory allocation: {0:,d}MB".format(
-            resource.getrusage(resource.RUSAGE_SELF).ru_maxrss / 1000))
+        return {"data": data, "state": state, "job": job, "build": build}
 
     def download_and_parse_data(self, repeat=1):
         """Download the input data files, parse input data from input files and
@@ -1317,67 +1304,34 @@ class InputData(object):
 
         logging.info("Downloading and parsing input files ...")
 
-        work_queue = multiprocessing.JoinableQueue()
-        manager = multiprocessing.Manager()
-        data_queue = manager.Queue()
-        cpus = multiprocessing.cpu_count()
-
-        workers = list()
-        for cpu in range(cpus):
-            worker = Worker(work_queue,
-                            data_queue,
-                            self._download_and_parse_build)
-            worker.daemon = True
-            worker.start()
-            workers.append(worker)
-            os.system("taskset -p -c {0} {1} > /dev/null 2>&1".
-                      format(cpu, worker.pid))
-
         for job, builds in self._cfg.builds.items():
             for build in builds:
-                work_queue.put((job, build, repeat))
-
-        work_queue.join()
-
-        logging.info("Done.")
-        logging.info("Collecting data:")
-
-        while not data_queue.empty():
-            result = data_queue.get()
-
-            job = result["job"]
-            build_nr = result["build"]["build"]
-            logging.info("  {job}-{build}".format(job=job, build=build_nr))
-
-            if result["data"]:
-                data = result["data"]
-                build_data = pd.Series({
-                    "metadata": pd.Series(
-                        data["metadata"].values(),
-                        index=data["metadata"].keys()),
-                    "suites": pd.Series(data["suites"].values(),
-                                        index=data["suites"].keys()),
-                    "tests": pd.Series(data["tests"].values(),
-                                       index=data["tests"].keys())})
 
-                if self._input_data.get(job, None) is None:
-                    self._input_data[job] = pd.Series()
-                self._input_data[job][str(build_nr)] = build_data
+                result = self._download_and_parse_build(job, build, repeat)
+                build_nr = result["build"]["build"]
 
-                self._cfg.set_input_file_name(
-                    job, build_nr, result["build"]["file-name"])
+                if result["data"]:
+                    data = result["data"]
+                    build_data = pd.Series({
+                        "metadata": pd.Series(
+                            data["metadata"].values(),
+                            index=data["metadata"].keys()),
+                        "suites": pd.Series(data["suites"].values(),
+                                            index=data["suites"].keys()),
+                        "tests": pd.Series(data["tests"].values(),
+                                           index=data["tests"].keys())})
 
-            self._cfg.set_input_state(job, build_nr, result["state"])
+                    if self._input_data.get(job, None) is None:
+                        self._input_data[job] = pd.Series()
+                    self._input_data[job][str(build_nr)] = build_data
 
-            logging.info("Memory allocation: {0:,d}MB".format(
-                resource.getrusage(resource.RUSAGE_SELF).ru_maxrss / 1000))
+                    self._cfg.set_input_file_name(
+                        job, build_nr, result["build"]["file-name"])
 
-        del data_queue
+                self._cfg.set_input_state(job, build_nr, result["state"])
 
-        # Terminate all workers
-        for worker in workers:
-            worker.terminate()
-            worker.join()
+                logging.info("Memory allocation: {0}kB".format(
+                    resource.getrusage(resource.RUSAGE_SELF).ru_maxrss))
 
         logging.info("Done.")