diff options
Diffstat (limited to 'speed-test')
| -rwxr-xr-x | speed-test | 14 |
1 files changed, 9 insertions, 5 deletions
@@ -15,8 +15,8 @@ # along with this program. If not, see <http://www.gnu.org/licenses/>. # Excercise my B-tree implementation, for simple benchmarking purposes. -# The benchmark gets a location and an operation count as command line -# arguments. +# The benchmark gets a location and nb of keys to use as command line +# arguments --location=LOCATION and --keys=KEYS. # # If the location is the empty string, an in-memory node store is used. # Otherwise it must be a non-existent directory name. @@ -73,13 +73,13 @@ class SpeedTest(cliapp.Application): raise Exception('You must set number of keys with --keys') if not location: - forest = larch.open_forest(key_size=key_size, node_size=node_size, + forest = larch.open_forest(allow_writes=True, key_size=key_size, node_size=node_size, node_store=larch.NodeStoreMemory) else: if os.path.exists(location): raise Exception('%s exists already' % location) os.mkdir(location) - forest = larch.open_forest(key_size=key_size, node_size=node_size, + forest = larch.open_forest(allow_writes=True, key_size=key_size, node_size=node_size, dirname=location) tree = forest.new_tree() @@ -144,7 +144,11 @@ class SpeedTest(cliapp.Application): # Report def speed(result, i): - return n / (result[i] - looptime[i]) + if result[i] == looptime[i]: + # computer too fast for the number of "keys" used... + return float("infinity") + else: + return n / (result[i] - looptime[i]) def report(label, result): cpu, wall = result print '%-16s: %5.3f s (%8.1f/s) CPU; %5.3f s (%8.1f/s) wall' % \ |