~bzr-pqm/bzr/bzr.dev : changes

~bzr-pqm/bzr/bzr.dev » Changes from revision 2474.1.66

Rev	Summary	Authors	Date
2474.1.46	Finish implementing _c_read_dirblocks for any number of pare... Finish implementing _c_read_dirblocks for any number of parents. bench_dirstate.BenchmarkDirState.test__c_read_dirblocks_20k_tree_0_parents OK 367ms/ 4353ms bench_dirstate.BenchmarkDirState.test__c_read_dirblocks_20k_tree_1_parent OK 594ms/ 8958ms bench_dirstate.BenchmarkDirState.test__c_read_dirblocks_20k_tree_2_parents OK 842ms/ 10490ms bench_dirstate.BenchmarkDirState.test__py_read_dirblocks_20k_tree_0_parents OK 560ms/ 4298ms bench_dirstate.BenchmarkDirState.test__py_read_dirblocks_20k_tree_1_parent OK 692ms/ 8658ms bench_dirstate.BenchmarkDirState.test__py_read_dirblocks_20k_tree_2_parents OK 1006ms/ 10710ms So overall the performance benefit is about 15-30%	John Arbash Meinel	17 years ago
2474.1.45	Add benchmarks to see how reading the dirstate changes when ... Add benchmarks to see how reading the dirstate changes when you have parents. Currently, the C implementation is slower than python, but partially that is because it is not optimized (at all).	John Arbash Meinel	17 years ago
2474.1.44	Use cmp_by_dirs in _iter_changes, it saves a bit of time. Use cmp_by_dirs in _iter_changes, it saves a bit of time. When I initially wrote it, I thought they wouldn't be called often, but I realize now they are evaluated when we have unknown/ignored files on disk.	John Arbash Meinel	17 years ago
2474.1.43	[merge] bzr.dev 2483 [merge] bzr.dev 2483	John Arbash Meinel	17 years ago
2474.1.42	fix benchmark names, refactor to avoid 'create_path_names' o... fix benchmark names, refactor to avoid 'create_path_names' overhead.	John Arbash Meinel	17 years ago
2474.1.41	Change the name of cmp_dirblock_strings to cmp_by_dirs Change the name of cmp_dirblock_strings to cmp_by_dirs And refactor the test cases so that we test both the python version and the C version. Also, add benchmarks for both. It shows that the C version is approx 10x faster.	John Arbash Meinel	17 years ago
2474.1.40	(python-only) Shave a bit of time off by calling binascii.b2... (python-only) Shave a bit of time off by calling binascii.b2a_base64 I should have looked closer, base64.encodestring() is a Legacy api, which just wraps binascii.b2a_base64. On 21k pack_stat calls, it drops us from around 784ms to 281ms	John Arbash Meinel	17 years ago
2474.1.39	Clean up and remove unused functions. Clean up and remove unused functions.	John Arbash Meinel	17 years ago
2474.1.38	Finally, faster than text.split() (156ms) Finally, faster than text.split() (156ms) By iterating over the fields directly, we don't have to create Python strings for the dirname field (only when it changes), or for the size field or is_executable fields. A lot fewer python objects means faster parsing.	John Arbash Meinel	17 years ago
2474.1.37	get_next() returns the length of the string, get_next() returns the length of the string, preparing for having a _get_entry... which parses rather than extracting to a list first	John Arbash Meinel	17 years ago
2474.1.36	Move functions into member functions on reader() class. Move functions into member functions on reader() class. Drops time down to 212ms	John Arbash Meinel	17 years ago
2474.1.35	Read the entries one at a time, rather than all at the begin... Read the entries one at a time, rather than all at the beginning.	John Arbash Meinel	17 years ago
2474.1.34	Delay reading fields until in parse loop Delay reading fields until in parse loop	John Arbash Meinel	17 years ago
2474.1.33	Using text.split() is down to 174ms Using text.split() is down to 174ms We'll need some work to get the Reader version faster.	John Arbash Meinel	17 years ago
2474.1.32	Skip past the first entry while reading, Skip past the first entry while reading, rather than while processing.	John Arbash Meinel	17 years ago
2474.1.31	Avoiding the string format unless there is actually a proble... Avoiding the string format unless there is actually a problem saves us almost 50ms (down to 242ms)	John Arbash Meinel	17 years ago
2474.1.30	Start working towards a parser which uses a Reader (producer... Start working towards a parser which uses a Reader (producer) rather than working on a list of fields. Currently slower than text.split('\0'), but should be possible to avoid the intermediate list entirely.	John Arbash Meinel	17 years ago
2474.1.29	Refactor, so that the inner _fields_to_entries function is t... Refactor, so that the inner _fields_to_entries function is the doing the path comparison, and it will re-use the dirname object, rather than copying a new string each time. This should have equivalent performance, but have a rather large memory savings, because we don't maintain N copies of the dirname for N files in that directory. It (theoretically) will speed up some comparisons, too, because the string hash, etc, will be properly cached.	John Arbash Meinel	17 years ago
2474.1.28	Ask the field converter to determine the current directory Ask the field converter to determine the current directory rather than parsing it out of the returned entry.	John Arbash Meinel	17 years ago
2474.1.27	Switching to direct access of members of the list drops us d... Switching to direct access of members of the list drops us down to 305ms	John Arbash Meinel	17 years ago