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- Committer: John Arbash Meinel
- Date: 2009-10-17 04:43:14 UTC
- Revision ID: john@arbash-meinel.com-20091017044314-nlvrrqnz0f2wzcp4
change the GroupcompressBlock code a bit.
If the first decompress request is big enough, just decompress everything.
And when we do that, let go of the decompressobj.
After digging through the zlib code, it looks like 1 zlib stream object
contains a 5kB internal state, and another 4*64kB buffers. (about 260kB
of total state.)
That turns out to be quite a lot if you think about it.
In the case of branching a copy of 'bzr.dev' locally, this turned out
to be 383MB w/ bzr.dev and 345MB w/ only this patch. (So ~11% of peak).
Also, this was 'unreferenced' memory, because it is hidden in the
zlib internal state in working buffers. So it wasn't memory that Meliae
could find. \o/.
If the first decompress request is big enough, just decompress everything.
And when we do that, let go of the decompressobj.
After digging through the zlib code, it looks like 1 zlib stream object
contains a 5kB internal state, and another 4*64kB buffers. (about 260kB
of total state.)
That turns out to be quite a lot if you think about it.
In the case of branching a copy of 'bzr.dev' locally, this turned out
to be 383MB w/ bzr.dev and 345MB w/ only this patch. (So ~11% of peak).
Also, this was 'unreferenced' memory, because it is hidden in the
zlib internal state in working buffers. So it wasn't memory that Meliae
could find. \o/.
| Filename | Latest Rev | Last Changed | Committer | Comment | Size | ||
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__init__.py |
4183.7.1 | 16 years ago | Sabin Iacob | update FSF mailing address | 1.8 KB |
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test_branch.py |
4183.7.1 | 16 years ago | Sabin Iacob | update FSF mailing address | 1.5 KB |
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test_cat.py |
4183.7.1 | 16 years ago | Sabin Iacob | update FSF mailing address | 2 KB |
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test_checkout.py |
4183.7.1 | 16 years ago | Sabin Iacob | update FSF mailing address | 1.4 KB |
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test_commit.py |
4183.7.1 | 16 years ago | Sabin Iacob | update FSF mailing address | 2.5 KB |
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test_init.py |
4183.7.1 | 16 years ago | Sabin Iacob | update FSF mailing address | 1.2 KB |
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test_init_repository.py |
4183.7.1 | 16 years ago | Sabin Iacob | update FSF mailing address | 1.3 KB |
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test_merge.py |
4183.7.1 | 16 years ago | Sabin Iacob | update FSF mailing address | 1.4 KB |
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test_missing.py |
4183.7.1 | 16 years ago | Sabin Iacob | update FSF mailing address | 1.4 KB |
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test_pull.py |
4183.7.1 | 16 years ago | Sabin Iacob | update FSF mailing address | 2 KB |
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test_push.py |
4183.7.1 | 16 years ago | Sabin Iacob | update FSF mailing address | 1.6 KB |
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test_update.py |
4183.7.1 | 16 years ago | Sabin Iacob | update FSF mailing address | 1.4 KB |
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