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

~bzr-pqm/bzr/bzr.dev » Changes from revision 0.23.17

Rev	Summary	Authors	Date
0.23.17	Create a wrapper function, so that lsprof will properly attr... Create a wrapper function, so that lsprof will properly attribute time spent.	John Arbash Meinel	15 years ago
0.23.16	Properly restore the label functionality. Properly restore the label functionality.	John Arbash Meinel	15 years ago
0.23.15	Handle when self._index is NULL, mostly because the source t... Handle when self._index is NULL, mostly because the source text was the empty strig. Start using DeltaIndex as part of the stardard compressing.	John Arbash Meinel	15 years ago
0.23.14	Implement a DeltaIndex wrapper. Implement a DeltaIndex wrapper. This splits out the create_delta_index from the create_delta code. Which should also help for profiling purposes.	John Arbash Meinel	15 years ago
0.23.13	Factor out the ability to have/not have labels. Factor out the ability to have/not have labels. It turns out that labels now cost overall 10% increase in repo size. A rather large 40% increase for inventory pages. Perhaps since label == sha1 we could get away doing something differently. Note also that repository-details doesn't take into account the indexes. The .cix index for a conversion is approx 380kB, which starts to be an important factor when you consider the total content for all chk pages is less than 1.5MB.	John Arbash Meinel	15 years ago
0.23.12	Add a 'len:' field to the data. Add a 'len:' field to the data. With this field, we can now fully populate an index from expanding the group-compress pages. There might be an issue with expanding the zlib pages, though if we switched to using gzip pages that would certainly go away. (perhaps zlib would have a 'trailing bytes', though, that would make it ok.) Checking to see how much this impacts final compressed size. Next step is to try removing all labels, and see what that final size becomes.	John Arbash Meinel	15 years ago
0.23.11	Insert a fulltext if the delta is more than half the total s... Insert a fulltext if the delta is more than half the total size. Also, gcr deltas are more pithy, they probably are approx the same after compression, but decrease the range limits since the copy instructions are effectively pre-compressed.	John Arbash Meinel	15 years ago
0.23.10	Allowing the source bytes to be longer than expected. Allowing the source bytes to be longer than expected. This makes a huge difference for extraction speed. 10s versus 45s. Versus 17s for the original groupcompress code. Also, the compiled version in _groupcompress_c seems ~ the same speed as the patch-delta.c version. At the very least, the extra memory copy overhead negates any benefit.	John Arbash Meinel	15 years ago
0.23.9	We now basically have full support for using diff-delta as t... We now basically have full support for using diff-delta as the compressor. Will still need some tuning/tweaking to see how we want to proceed.	John Arbash Meinel	15 years ago
0.23.8	Add another test text. Add another test text.	John Arbash Meinel	15 years ago
0.23.7	Add a apply_delta2 function, just in case it matters. Add a apply_delta2 function, just in case it matters.	John Arbash Meinel	15 years ago
0.23.6	Start stripping out the actual GroupCompressor Start stripping out the actual GroupCompressor in preparation for using the diff-delta code. Add some tests that we can generate and apply diff deltas. We need to start adding some exceptions, and consider moving the core of the patch-delta loop back into a pure C function, as the generated code is very messy.	John Arbash Meinel	15 years ago
0.23.5	Minor changes to get diff-delta.c and patch-delta.c to compi... Minor changes to get diff-delta.c and patch-delta.c to compile. This includes bringing in 'delta.h'	John Arbash Meinel	15 years ago
0.23.4	Merge in the latest updates to the gc trunk. Merge in the latest updates to the gc trunk.	John Arbash Meinel	15 years ago
0.23.3	Fix a couple more locations. Fix a couple more locations.	John Arbash Meinel	15 years ago
0.23.2	Add the diff-delta.c and patch-delta.c files. Add the diff-delta.c and patch-delta.c files.	Nicolas Pitre	15 years ago
0.23.1	Start a quick experimentation with a different 'diff' algori... Start a quick experimentation with a different 'diff' algorithm.	John Arbash Meinel	15 years ago
0.20.20	Setting _fetch_order='topological' gives sub-optimal orderin... Setting _fetch_order='topological' gives sub-optimal ordering for gc=>gc fetches. This is because the 'autopack' code will convert to 'gc-optimal', which means that 'unordered' will then continue the 'gc-optimal' route.	John Arbash Meinel	15 years ago
0.20.19	Groupcompress now supports 'autopack' and 'pack'. Groupcompress now supports 'autopack' and 'pack'. It does this by just creating a new pack file, wrapping a GCVersionedFiles around it, and streaming in the data in 'gc-optimal' ordering. This actually seems to work fairly well.	John Arbash Meinel	15 years ago
0.20.18	Implement new handling of get_bytes_as(), and get_missing_co... Implement new handling of get_bytes_as(), and get_missing_compression_parent_keys() Now works on bzr.dev's new streaming code.	John Arbash Meinel	15 years ago

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