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From john...@apache.org
Subject [1/2] git commit: [#4691] Added scm benchmark script for evaluating LCD solutions
Date Thu, 10 Jan 2013 22:49:58 GMT
[#4691] Added scm benchmark script for evaluating LCD solutions

Signed-off-by: Cory Johns <johnsca@geek.net>


Project: http://git-wip-us.apache.org/repos/asf/incubator-allura/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-allura/commit/9f6e16d7
Tree: http://git-wip-us.apache.org/repos/asf/incubator-allura/tree/9f6e16d7
Diff: http://git-wip-us.apache.org/repos/asf/incubator-allura/diff/9f6e16d7

Branch: refs/heads/cj/4691
Commit: 9f6e16d78e77ec45d4bbedc0252a1c0234e963d3
Parents: 3edfd03
Author: Cory Johns <johnsca@geek.net>
Authored: Thu Jan 10 16:19:59 2013 +0000
Committer: Cory Johns <johnsca@geek.net>
Committed: Thu Jan 10 21:37:36 2013 +0000

----------------------------------------------------------------------
 scripts/benchmark-scm.py |  125 +++++++++++++++++++++++++++++++++++++++++
 1 files changed, 125 insertions(+), 0 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/incubator-allura/blob/9f6e16d7/scripts/benchmark-scm.py
----------------------------------------------------------------------
diff --git a/scripts/benchmark-scm.py b/scripts/benchmark-scm.py
new file mode 100755
index 0000000..a5cb9e4
--- /dev/null
+++ b/scripts/benchmark-scm.py
@@ -0,0 +1,125 @@
+#!/bin/env python
+
+import os
+import sys
+import argparse
+from datetime import datetime
+
+import git
+import pysvn
+from mercurial import ui, hg, cmdutil
+
+
+def main(opts):
+    if opts.type == 'git':
+        repo = git.Repo(opts.repo_path, odbt=git.GitCmdObjectDB)
+        cid = opts.cid
+        path = opts.path.strip('/')
+        tree = repo.commit(opts.cid).tree
+        if path:
+            tree = tree[path]
+        names = [n.name for n in tree]
+        impl = impl_git_tree if opts.full_tree else impl_git_node
+    elif opts.type == 'hg':
+        repo = hg.repository(HgUI(), opts.repo_path)
+        cid = None if opts.cid == 'HEAD' else ['%s:0' % opts.cid]
+        path = opts.path.strip('/')
+        filenames = repo['tip' if opts.cid == 'HEAD' else opts.cid].manifest().keys()
+        filenames = [name for name in filenames if name.startswith(('%s/' % path).lstrip('/'))]
+        names = set()
+        for name in filenames:
+            names.add(name.split('/')[0])
+        names = list(names)
+        impl = impl_hg_tree if opts.full_tree else impl_hg_node
+    elif opts.type == 'svn':
+        repo = pysvn.Client()
+        if opts.cid == 'HEAD':
+            cid = pysvn.Revision(pysvn.opt_revision_kind.head)
+        else:
+            cid = pysvn.Revision(pysvn.opt_revision_kind.number, opts.cid)
+        path = opts.path.strip('/')
+        names = []
+        impl = impl_svn_tree if opts.full_tree else impl_svn_node
+
+    sys.stdout.write('Timing %s' % ('full tree' if opts.full_tree else 'node'))
+    sys.stdout.flush()
+    total = 0.0
+    for i in range(opts.count):
+        sys.stdout.write('.')
+        sys.stdout.flush()
+        start = datetime.now()
+        impl(repo, cid, path, names, opts.repo_path)
+        end = datetime.now()
+        total += (end - start).total_seconds()
+    print
+    print 'Total time:           %s' % total
+    print 'Average time per run: %s' % (total / opts.count)
+
+
+def impl_git_tree(repo, cid, path, names, *args):
+    data = {}
+    for name in names:
+        #data[name] = repo.git.rev_list(cid, '--', os.path.join(path, name), max_count=1)
+        data[name] = git.Commit.iter_items(repo, cid, os.path.join(path, name), max_count=1).next().hexsha
+    return data
+
+def impl_git_node(repo, cid, path, *args):
+    #return repo.git.rev_list(cid, '--', path, max_count=1)
+    return git.Commit.iter_items(repo, cid, path, max_count=1).next().hexsha
+
+
+def impl_hg_tree(repo, cid, path, names, *args):
+    m = cmdutil.match(repo, pats=[path], default=path)
+    data = {}
+    for name in names:
+        rev_iter = cmdutil.walkchangerevs(repo, m, {'rev': cid}, lambda c,f: None)
+        data[name] = rev_iter.next().hex()
+    return data
+
+def impl_hg_node(repo, cid, path, *args):
+    m = cmdutil.match(repo, pats=[path], default=path)
+    rev_iter = cmdutil.walkchangerevs(repo, m, {'rev': cid}, lambda c,f: None)
+    return rev_iter.next().hex()
+
+def impl_svn_tree(repo, cid, path, names, repo_path, *args):
+    infos = repo.info2(
+            'file://%s/%s' % (repo_path, path),
+            revision=cid,
+            depth=pysvn.depth.immediates)
+    data = {}
+    for name, info in infos[1:]:
+        data[name] = info.last_changed_rev
+    return data
+
+def impl_svn_node(repo, cid, path, names, repo_path, *args):
+    logs = repo.log(
+            'file://%s/%s' % (repo_path, path),
+            revision_start=cid,
+            limit=1)
+    return logs[0].revision.number
+
+
+class HgUI(ui.ui):
+    '''Hg UI subclass that suppresses reporting of untrusted hgrc files.'''
+    def __init__(self, *args, **kwargs):
+        super(HgUI, self).__init__(*args, **kwargs)
+        self._reportuntrusted = False
+
+def parse_opts():
+    parser = argparse.ArgumentParser(description='Benchmark getting LCD from repo tool')
+    parser.add_argument('--type', default='git', dest='type',
+            help='Type of repository being tested.')
+    parser.add_argument('--repo-path', dest='repo_path', required=True,
+            help='Path to the repository to test against')
+    parser.add_argument('--commit', default='HEAD', dest='cid',
+            help='Commit ID or revision number to test against')
+    parser.add_argument('--path', default='', dest='path',
+            help='Path within the repository to test against')
+    parser.add_argument('--count', type=int, default=100, dest='count',
+            help='Number of times to execute')
+    parser.add_argument('--full-tree', action='store_true', default=False, dest='full_tree',
+            help='Time full tree listing instead of just the single node')
+    return parser.parse_args()
+
+if __name__ == '__main__':
+    main(parse_opts())


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