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Unified Diff: tools/testrunner/network/perfdata.py

Issue 11035053: Rollback trunk to bleeding_edge revision 12525 (Closed) Base URL: https://v8.googlecode.com/svn/trunk
Patch Set: Created 8 years, 2 months ago
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Index: tools/testrunner/network/perfdata.py
diff --git a/tools/testrunner/network/perfdata.py b/tools/testrunner/network/perfdata.py
deleted file mode 100644
index 2979dc48661b9b48662a37a0555133b470ee25c3..0000000000000000000000000000000000000000
--- a/tools/testrunner/network/perfdata.py
+++ /dev/null
@@ -1,120 +0,0 @@
-# Copyright 2012 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
-# with the distribution.
-# * Neither the name of Google Inc. nor the names of its
-# contributors may be used to endorse or promote products derived
-# from this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-import os
-import shelve
-import threading
-
-
-class PerfDataEntry(object):
- def __init__(self):
- self.avg = 0.0
- self.count = 0
-
- def AddResult(self, result):
- kLearnRateLimiter = 99 # Greater value means slower learning.
- # We use an approximation of the average of the last 100 results here:
- # The existing average is weighted with kLearnRateLimiter (or less
- # if there are fewer data points).
- effective_count = min(self.count, kLearnRateLimiter)
- self.avg = self.avg * effective_count + result
- self.count = effective_count + 1
- self.avg /= self.count
-
-
-class PerfDataStore(object):
- def __init__(self, datadir, arch, mode):
- filename = os.path.join(datadir, "%s.%s.perfdata" % (arch, mode))
- self.database = shelve.open(filename, protocol=2)
- self.closed = False
- self.lock = threading.Lock()
-
- def __del__(self):
- self.close()
-
- def close(self):
- if self.closed: return
- self.database.close()
- self.closed = True
-
- def GetKey(self, test):
- """Computes the key used to access data for the given testcase."""
- flags = "".join(test.flags)
- return str("%s.%s.%s" % (test.suitename(), test.path, flags))
-
- def FetchPerfData(self, test):
- """Returns the observed duration for |test| as read from the store."""
- key = self.GetKey(test)
- if key in self.database:
- return self.database[key].avg
- return None
-
- def UpdatePerfData(self, test):
- """Updates the persisted value in the store with test.duration."""
- testkey = self.GetKey(test)
- self.RawUpdatePerfData(testkey, test.duration)
-
- def RawUpdatePerfData(self, testkey, duration):
- with self.lock:
- if testkey in self.database:
- entry = self.database[testkey]
- else:
- entry = PerfDataEntry()
- entry.AddResult(duration)
- self.database[testkey] = entry
-
-
-class PerfDataManager(object):
- def __init__(self, datadir):
- self.datadir = os.path.abspath(datadir)
- if not os.path.exists(self.datadir):
- os.makedirs(self.datadir)
- self.stores = {} # Keyed by arch, then mode.
- self.closed = False
- self.lock = threading.Lock()
-
- def __del__(self):
- self.close()
-
- def close(self):
- if self.closed: return
- for arch in self.stores:
- modes = self.stores[arch]
- for mode in modes:
- store = modes[mode]
- store.close()
- self.closed = True
-
- def GetStore(self, arch, mode):
- with self.lock:
- if not arch in self.stores:
- self.stores[arch] = {}
- modes = self.stores[arch]
- if not mode in modes:
- modes[mode] = PerfDataStore(self.datadir, arch, mode)
- return modes[mode]
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