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  • Committer: John Arbash Meinel
  • Date: 2009-12-22 16:28:47 UTC
  • mto: This revision was merged to the branch mainline in revision 4922.
  • Revision ID: john@arbash-meinel.com-20091222162847-tvnsc69to4l4uf5r
Implement a permute_for_extension helper.

Use it for all of the 'simple' extension permutations.
It basically permutes all tests in the current module, by setting TestCase.module.
Which works well for most of our extension tests. Some had more advanced
handling of permutations (extra permutations, custom vars, etc.)

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bzrlib/benchmarks/bench_pack.py
 
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# Copyright (C) 2007 Canonical Ltd
 
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#
 
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# This program is free software; you can redistribute it and/or modify
 
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# it under the terms of the GNU General Public License as published by
 
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# the Free Software Foundation; either version 2 of the License, or
 
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# (at your option) any later version.
 
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#
 
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# This program is distributed in the hope that it will be useful,
 
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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# GNU General Public License for more details.
 
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#
 
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# You should have received a copy of the GNU General Public License
 
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# along with this program; if not, write to the Free Software
 
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
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"""Benchmarks for pack performance"""
 
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import os
 
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from bzrlib import (
 
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    pack,
 
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    )
 
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from bzrlib.benchmarks import Benchmark
 
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class BenchPack(Benchmark):
 
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    """Benchmark pack performance."""
 
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    def test_insert_one_gig_1k_chunks_no_names_disk(self):
 
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        # test real disk writing of many small chunks.
 
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        # useful for testing whether buffer sizes are right
 
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        transport = self.get_transport()
 
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        stream = transport.open_write_stream('pack.pack')
 
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        writer = pack.ContainerWriter(stream.write)
 
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        self.write_1_gig(writer)
 
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        stream.close()
 
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    def test_insert_one_gig_1k_chunks_no_names_null(self):
 
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        # write to dev/null so we test the pack processing.
 
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        transport = self.get_transport()
 
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        dev_null = open('/dev/null', 'wb')
 
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        writer = pack.ContainerWriter(dev_null.write)
 
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        self.write_1_gig(writer)
 
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        dev_null.close()
 
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    def write_1_gig(self, writer):
 
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        one_k = "A" * 1024
 
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        writer.begin()
 
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        def write_1g():
 
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            for hunk in xrange(1024 * 1024):
 
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                writer.add_bytes_record(one_k, [])
 
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        self.time(write_1g)
 
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        writer.end()