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| author |  Nicolas Pitre <nico@cam.org> | 2007-07-12 17:07:59 -0400 |
|---|---|---|
| committer |  Junio C Hamano <gitster@pobox.com> | 2007-07-12 14:36:09 -0700 |
| commit | 5a235b5ed02fa0f9f67c4fbec703e3126eb3c7f5 (patch) | |
| tree | 3943b9738ca7feb29419cf70c3ffeda9925cb88c /builtin-pack-objects.c | |
| parent | Add documentation for --window-memory, pack.windowMemory (diff) | |
| download | tgif-5a235b5ed02fa0f9f67c4fbec703e3126eb3c7f5.tar.xz | |
reduce git-pack-objects memory usage a little more
The delta depth doesn't have to be stored in the global object array
structure since it is only used during the deltification pass.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin-pack-objects.c')
| -rw-r--r-- | builtin-pack-objects.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/builtin-pack-objects.c b/builtin-pack-objects.c index a94ec78971..a43d6040ca 100644 --- a/builtin-pack-objects.c +++ b/builtin-pack-objects.c @@ -26,9 +26,6 @@ git-pack-objects [{ -q | --progress | --all-progress }] \n\ struct object_entry { struct pack_idx_entry idx; unsigned long size; /* uncompressed size */ - - unsigned int hash; /* name hint hash */ - unsigned int depth; /* delta depth */ struct packed_git *in_pack; /* already in pack */ off_t in_pack_offset; struct object_entry *delta; /* delta base object */ @@ -38,6 +35,7 @@ struct object_entry { */ void *delta_data; /* cached delta (uncompressed) */ unsigned long delta_size; /* delta data size (uncompressed) */ + unsigned int hash; /* name hint hash */ enum object_type type; enum object_type in_pack_type; /* could be delta */ unsigned char in_pack_header_size; @@ -1274,6 +1272,7 @@ struct unpacked { struct object_entry *entry; void *data; struct delta_index *index; + unsigned depth; }; static int delta_cacheable(struct unpacked *trg, struct unpacked *src, @@ -1332,7 +1331,7 @@ static int try_delta(struct unpacked *trg, struct unpacked *src, return 0; /* Let's not bust the allowed depth. */ - if (src_entry->depth >= max_depth) + if (src->depth >= max_depth) return 0; /* Now some size filtering heuristics. */ @@ -1342,9 +1341,9 @@ static int try_delta(struct unpacked *trg, struct unpacked *src, ref_depth = 1; } else { max_size = trg_entry->delta_size; - ref_depth = trg_entry->depth; + ref_depth = trg->depth; } - max_size = max_size * (max_depth - src_entry->depth) / + max_size = max_size * (max_depth - src->depth) / (max_depth - ref_depth + 1); if (max_size == 0) return 0; @@ -1388,17 +1387,17 @@ static int try_delta(struct unpacked *trg, struct unpacked *src, if (trg_entry->delta_data) { /* Prefer only shallower same-sized deltas. */ if (delta_size == trg_entry->delta_size && - src_entry->depth + 1 >= trg_entry->depth) { + src->depth + 1 >= trg->depth) { free(delta_buf); return 0; } delta_cache_size -= trg_entry->delta_size; free(trg_entry->delta_data); + trg_entry->delta_data = NULL; } - trg_entry->delta_data = 0; trg_entry->delta = src_entry; trg_entry->delta_size = delta_size; - trg_entry->depth = src_entry->depth + 1; + trg->depth = src->depth + 1; if (delta_cacheable(src, trg, src_size, trg_size, delta_size)) { trg_entry->delta_data = xrealloc(delta_buf, delta_size); @@ -1511,7 +1510,7 @@ static void find_deltas(struct object_entry **list, int window, int depth) * depth, leaving it in the window is pointless. we * should evict it first. */ - if (entry->delta && depth <= entry->depth) + if (entry->delta && depth <= n->depth) continue; next: |