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[89.95.107.230]) by smtp.gmail.com with ESMTPSA id t69-v6sm10913762wmt.40.2018.08.09.08.56.05 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 09 Aug 2018 08:56:06 -0700 (PDT) From: Christian Couder X-Google-Original-From: Christian Couder To: git@vger.kernel.org Cc: Junio C Hamano , Jeff King , Duy Nguyen , Johannes Schindelin , Stefan Beller , Christian Couder Subject: [PATCH v3 7/8] pack-objects: move tree_depth into 'struct packing_data' Date: Thu, 9 Aug 2018 17:55:31 +0200 Message-Id: <20180809155532.26151-8-chriscool@tuxfamily.org> X-Mailer: git-send-email 2.18.0.555.g17f9c4abba In-Reply-To: <20180809155532.26151-1-chriscool@tuxfamily.org> References: <20180809155532.26151-1-chriscool@tuxfamily.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org This reduces the size of 'struct object_entry' and therefore makes packing objects more efficient. This also renames cmp_tree_depth() into tree_depth_compare(), as it is more modern to have the name of the compare functions end with "compare". Helped-by: Jeff King Helped-by: Duy Nguyen Signed-off-by: Christian Couder --- builtin/pack-objects.c | 4 ++-- delta-islands.c | 27 ++++++++++++++++++--------- pack-objects.c | 6 ++++++ pack-objects.h | 21 ++++++++++++++++++++- 4 files changed, 46 insertions(+), 12 deletions(-) diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c index 30ef48dc43..fd3e514b31 100644 --- a/builtin/pack-objects.c +++ b/builtin/pack-objects.c @@ -2716,8 +2716,8 @@ static void show_object(struct object *obj, const char *name, void *data) depth++; ent = packlist_find(&to_pack, obj->oid.hash, NULL); - if (ent && depth > ent->tree_depth) - ent->tree_depth = depth; + if (ent && depth > oe_tree_depth(&to_pack, ent)) + oe_set_tree_depth(&to_pack, ent, depth); } } diff --git a/delta-islands.c b/delta-islands.c index 448ddcbbe4..3c8fe60801 100644 --- a/delta-islands.c +++ b/delta-islands.c @@ -224,17 +224,23 @@ static void mark_remote_island_1(struct remote_island *rl, int is_core_island) island_counter++; } -static int cmp_tree_depth(const void *va, const void *vb) +struct tree_islands_todo { + struct object_entry *entry; + unsigned int depth; +}; + +static int tree_depth_compare(const void *a, const void *b) { - struct object_entry *a = *(struct object_entry **)va; - struct object_entry *b = *(struct object_entry **)vb; - return a->tree_depth - b->tree_depth; + const struct tree_islands_todo *todo_a = a; + const struct tree_islands_todo *todo_b = b; + + return todo_a->depth - todo_b->depth; } void resolve_tree_islands(int progress, struct packing_data *to_pack) { struct progress *progress_state = NULL; - struct object_entry **todo; + struct tree_islands_todo *todo; int nr = 0; int i; @@ -250,16 +256,19 @@ void resolve_tree_islands(int progress, struct packing_data *to_pack) */ ALLOC_ARRAY(todo, to_pack->nr_objects); for (i = 0; i < to_pack->nr_objects; i++) { - if (oe_type(&to_pack->objects[i]) == OBJ_TREE) - todo[nr++] = &to_pack->objects[i]; + if (oe_type(&to_pack->objects[i]) == OBJ_TREE) { + todo[nr].entry = &to_pack->objects[i]; + todo[nr].depth = oe_tree_depth(to_pack, &to_pack->objects[i]); + nr++; + } } - QSORT(todo, nr, cmp_tree_depth); + QSORT(todo, nr, tree_depth_compare); if (progress) progress_state = start_progress(_("Propagating island marks"), nr); for (i = 0; i < nr; i++) { - struct object_entry *ent = todo[i]; + struct object_entry *ent = todo[i].entry; struct island_bitmap *root_marks; struct tree *tree; struct tree_desc desc; diff --git a/pack-objects.c b/pack-objects.c index 92708522e7..30314572e6 100644 --- a/pack-objects.c +++ b/pack-objects.c @@ -160,6 +160,9 @@ struct object_entry *packlist_alloc(struct packing_data *pdata, if (!pdata->in_pack_by_idx) REALLOC_ARRAY(pdata->in_pack, pdata->nr_alloc); + + if (pdata->tree_depth) + REALLOC_ARRAY(pdata->tree_depth, pdata->nr_alloc); } new_entry = pdata->objects + pdata->nr_objects++; @@ -175,5 +178,8 @@ struct object_entry *packlist_alloc(struct packing_data *pdata, if (pdata->in_pack) pdata->in_pack[pdata->nr_objects - 1] = NULL; + if (pdata->tree_depth) + pdata->tree_depth[pdata->nr_objects - 1] = 0; + return new_entry; } diff --git a/pack-objects.h b/pack-objects.h index 8eecd67991..3cb5527eeb 100644 --- a/pack-objects.h +++ b/pack-objects.h @@ -101,7 +101,6 @@ struct object_entry { unsigned no_try_delta:1; unsigned in_pack_type:TYPE_BITS; /* could be delta */ - unsigned int tree_depth; /* should be repositioned for packing? */ unsigned char layer; unsigned preferred_base:1; /* @@ -145,6 +144,9 @@ struct packing_data { struct packed_git **in_pack; uintmax_t oe_size_limit; + + /* delta islands */ + unsigned int *tree_depth; }; void prepare_packing_data(struct packing_data *pdata); @@ -350,4 +352,21 @@ static inline void oe_set_delta_size(struct packing_data *pack, "where delta size is the same as entry size"); } +static inline unsigned int oe_tree_depth(struct packing_data *pack, + struct object_entry *e) +{ + if (!pack->tree_depth) + return 0; + return pack->tree_depth[e - pack->objects]; +} + +static inline void oe_set_tree_depth(struct packing_data *pack, + struct object_entry *e, + unsigned int tree_depth) +{ + if (!pack->tree_depth) + ALLOC_ARRAY(pack->tree_depth, pack->nr_objects); + pack->tree_depth[e - pack->objects] = tree_depth; +} + #endif -- 2.18.0.555.g17f9c4abba