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From: Nguyễn Thái Ngọc Duy  <pclouds@gmail.com>
To: pclouds@gmail.com
Cc: avarab@gmail.com, e@80x24.org, git@vger.kernel.org,
	gitster@pobox.com, peff@peff.net
Subject: [PATCH v7 11/13] pack-objects: shrink size field in struct object_entry
Date: Sat, 24 Mar 2018 07:33:51 +0100
Message-ID: <20180324063353.24722-12-pclouds@gmail.com> (raw)
In-Reply-To: <20180324063353.24722-1-pclouds@gmail.com>

It's very very rare that an uncompressed object is larger than 4GB
(partly because Git does not handle those large files very well to
begin with). Let's optimize it for the common case where object size
is smaller than this limit.

Shrink size field down to 32 bits [1] and one overflow bit. If the
size is too large, we read it back from disk. As noted in the previous
patch, we need to return the delta size instead of canonical size when
the to-be-reused object entry type is a delta instead of a canonical
one.

Add two compare helpers that can take advantage of the overflow
bit (e.g. if the file is 4GB+, chances are it's already larger than
core.bigFileThreshold and there's no point in comparing the actual
value).

Another note about oe_get_size_slow(). This function MUST be thread
safe because SIZE() macro is used inside try_delta() which may run in
parallel. Outside parallel code, no-contention locking should be dirt
cheap (or insignificant compared to i/o access anyway). To exercise
this code, it's best to run the test suite with something like

    make test GIT_TEST_OE_SIZE_BITS=2

which forces this code on all objects larger than 3 bytes.

[1] it's actually already 32 bits on Windows

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 builtin/pack-objects.c | 100 +++++++++++++++++++++++++++++++----------
 pack-objects.c         |   9 +++-
 pack-objects.h         |  53 +++++++++++++++++++++-
 t/README               |   6 +++
 4 files changed, 142 insertions(+), 26 deletions(-)

diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index f054ba9dfa..caeef086d3 100644
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -30,6 +30,8 @@
 #include "packfile.h"
 
 #define IN_PACK(obj) oe_in_pack(&to_pack, obj)
+#define SIZE(obj) oe_size(&to_pack, obj)
+#define SET_SIZE(obj,size) oe_set_size(&to_pack, obj, size)
 #define DELTA(obj) oe_delta(&to_pack, obj)
 #define DELTA_CHILD(obj) oe_delta_child(&to_pack, obj)
 #define DELTA_SIBLING(obj) oe_delta_sibling(&to_pack, obj)
@@ -274,7 +276,7 @@ static unsigned long write_no_reuse_object(struct hashfile *f, struct object_ent
 
 	if (!usable_delta) {
 		if (oe_type(entry) == OBJ_BLOB &&
-		    entry->size > big_file_threshold &&
+		    oe_size_greater_than(&to_pack, entry, big_file_threshold) &&
 		    (st = open_istream(entry->idx.oid.hash, &type, &size, NULL)) != NULL)
 			buf = NULL;
 		else {
@@ -384,12 +386,13 @@ static off_t write_reuse_object(struct hashfile *f, struct object_entry *entry,
 	unsigned char header[MAX_PACK_OBJECT_HEADER],
 		      dheader[MAX_PACK_OBJECT_HEADER];
 	unsigned hdrlen;
+	unsigned long entry_size = SIZE(entry);
 
 	if (DELTA(entry))
 		type = (allow_ofs_delta && DELTA(entry)->idx.offset) ?
 			OBJ_OFS_DELTA : OBJ_REF_DELTA;
 	hdrlen = encode_in_pack_object_header(header, sizeof(header),
-					      type, entry->size);
+					      type, entry_size);
 
 	offset = entry->in_pack_offset;
 	revidx = find_pack_revindex(p, offset);
@@ -406,7 +409,7 @@ static off_t write_reuse_object(struct hashfile *f, struct object_entry *entry,
 	datalen -= entry->in_pack_header_size;
 
 	if (!pack_to_stdout && p->index_version == 1 &&
-	    check_pack_inflate(p, &w_curs, offset, datalen, entry->size)) {
+	    check_pack_inflate(p, &w_curs, offset, datalen, entry_size)) {
 		error("corrupt packed object for %s",
 		      oid_to_hex(&entry->idx.oid));
 		unuse_pack(&w_curs);
@@ -1407,6 +1410,8 @@ static void cleanup_preferred_base(void)
 
 static void check_object(struct object_entry *entry)
 {
+	unsigned long canonical_size;
+
 	if (IN_PACK(entry)) {
 		struct packed_git *p = IN_PACK(entry);
 		struct pack_window *w_curs = NULL;
@@ -1444,7 +1449,7 @@ static void check_object(struct object_entry *entry)
 		default:
 			/* Not a delta hence we've already got all we need. */
 			oe_set_type(entry, entry->in_pack_type);
-			entry->size = in_pack_size;
+			SET_SIZE(entry, in_pack_size);
 			entry->in_pack_header_size = used;
 			if (oe_type(entry) < OBJ_COMMIT || oe_type(entry) > OBJ_BLOB)
 				goto give_up;
@@ -1501,9 +1506,9 @@ static void check_object(struct object_entry *entry)
 			 * circular deltas.
 			 */
 			oe_set_type(entry, entry->in_pack_type);
-			entry->size = in_pack_size; /* delta size */
+			SET_SIZE(entry, in_pack_size); /* delta size */
 			SET_DELTA(entry, base_entry);
-			entry->delta_size = entry->size;
+			entry->delta_size = in_pack_size;
 			entry->delta_sibling_idx = base_entry->delta_child_idx;
 			SET_DELTA_CHILD(base_entry, entry);
 			unuse_pack(&w_curs);
@@ -1519,9 +1524,10 @@ static void check_object(struct object_entry *entry)
 			 * object size from the delta header.
 			 */
 			delta_pos = entry->in_pack_offset + entry->in_pack_header_size;
-			entry->size = get_size_from_delta(p, &w_curs, delta_pos);
-			if (entry->size == 0)
+			canonical_size = get_size_from_delta(p, &w_curs, delta_pos);
+			if (canonical_size == 0)
 				goto give_up;
+			SET_SIZE(entry, canonical_size);
 			unuse_pack(&w_curs);
 			return;
 		}
@@ -1535,13 +1541,18 @@ static void check_object(struct object_entry *entry)
 		unuse_pack(&w_curs);
 	}
 
-	oe_set_type(entry, sha1_object_info(entry->idx.oid.hash, &entry->size));
-	/*
-	 * The error condition is checked in prepare_pack().  This is
-	 * to permit a missing preferred base object to be ignored
-	 * as a preferred base.  Doing so can result in a larger
-	 * pack file, but the transfer will still take place.
-	 */
+	oe_set_type(entry, sha1_object_info(entry->idx.oid.hash,
+					    &canonical_size));
+	if (entry->type_valid) {
+		SET_SIZE(entry, canonical_size);
+	} else {
+		/*
+		 * Bad object type is checked in prepare_pack().  This is
+		 * to permit a missing preferred base object to be ignored
+		 * as a preferred base.  Doing so can result in a larger
+		 * pack file, but the transfer will still take place.
+		 */
+	}
 }
 
 static int pack_offset_sort(const void *_a, const void *_b)
@@ -1581,6 +1592,7 @@ static void drop_reused_delta(struct object_entry *entry)
 	unsigned *idx = &to_pack.objects[entry->delta_idx - 1].delta_child_idx;
 	struct object_info oi = OBJECT_INFO_INIT;
 	enum object_type type;
+	unsigned long size;
 
 	while (*idx) {
 		struct object_entry *oe = &to_pack.objects[*idx - 1];
@@ -1593,7 +1605,7 @@ static void drop_reused_delta(struct object_entry *entry)
 	SET_DELTA(entry, NULL);
 	entry->depth = 0;
 
-	oi.sizep = &entry->size;
+	oi.sizep = &size;
 	oi.typep = &type;
 	if (packed_object_info(IN_PACK(entry), entry->in_pack_offset, &oi) < 0) {
 		/*
@@ -1603,10 +1615,11 @@ static void drop_reused_delta(struct object_entry *entry)
 		 * and dealt with in prepare_pack().
 		 */
 		oe_set_type(entry, sha1_object_info(entry->idx.oid.hash,
-						    &entry->size));
+						    &size));
 	} else {
 		oe_set_type(entry, type);
 	}
+	SET_SIZE(entry, size);
 }
 
 /*
@@ -1746,7 +1759,8 @@ static void get_object_details(void)
 	for (i = 0; i < to_pack.nr_objects; i++) {
 		struct object_entry *entry = sorted_by_offset[i];
 		check_object(entry);
-		if (entry->type_valid && big_file_threshold < entry->size)
+		if (entry->type_valid &&
+		    oe_size_greater_than(&to_pack, entry, big_file_threshold))
 			entry->no_try_delta = 1;
 	}
 
@@ -1775,6 +1789,8 @@ static int type_size_sort(const void *_a, const void *_b)
 	const struct object_entry *b = *(struct object_entry **)_b;
 	enum object_type a_type = oe_type(a);
 	enum object_type b_type = oe_type(b);
+	unsigned long a_size = SIZE(a);
+	unsigned long b_size = SIZE(b);
 
 	if (a_type > b_type)
 		return -1;
@@ -1788,9 +1804,9 @@ static int type_size_sort(const void *_a, const void *_b)
 		return -1;
 	if (a->preferred_base < b->preferred_base)
 		return 1;
-	if (a->size > b->size)
+	if (a_size > b_size)
 		return -1;
-	if (a->size < b->size)
+	if (a_size < b_size)
 		return 1;
 	return a < b ? -1 : (a > b);  /* newest first */
 }
@@ -1843,6 +1859,41 @@ static pthread_mutex_t progress_mutex;
 
 #endif
 
+unsigned long oe_get_size_slow(struct packing_data *pack,
+			       const struct object_entry *e)
+{
+	struct packed_git *p;
+	struct pack_window *w_curs;
+	unsigned char *buf;
+	enum object_type type;
+	unsigned long used, avail, size;
+
+	if (e->type_ != OBJ_OFS_DELTA && e->type_ != OBJ_REF_DELTA) {
+		read_lock();
+		if (sha1_object_info(e->idx.oid.hash, &size) < 0)
+			die(_("unable to get size of %s"),
+			    oid_to_hex(&e->idx.oid));
+		read_unlock();
+		return size;
+	}
+
+	p = oe_in_pack(pack, e);
+	if (!p)
+		die("BUG: when e->type is a delta, it must belong to a pack");
+
+	read_lock();
+	w_curs = NULL;
+	buf = use_pack(p, &w_curs, e->in_pack_offset, &avail);
+	used = unpack_object_header_buffer(buf, avail, &type, &size);
+	if (used == 0)
+		die(_("unable to parse object header of %s"),
+		    oid_to_hex(&e->idx.oid));
+
+	unuse_pack(&w_curs);
+	read_unlock();
+	return size;
+}
+
 static int try_delta(struct unpacked *trg, struct unpacked *src,
 		     unsigned max_depth, unsigned long *mem_usage)
 {
@@ -1877,7 +1928,7 @@ static int try_delta(struct unpacked *trg, struct unpacked *src,
 		return 0;
 
 	/* Now some size filtering heuristics. */
-	trg_size = trg_entry->size;
+	trg_size = SIZE(trg_entry);
 	if (!DELTA(trg_entry)) {
 		max_size = trg_size/2 - 20;
 		ref_depth = 1;
@@ -1889,7 +1940,7 @@ static int try_delta(struct unpacked *trg, struct unpacked *src,
 						(max_depth - ref_depth + 1);
 	if (max_size == 0)
 		return 0;
-	src_size = src_entry->size;
+	src_size = SIZE(src_entry);
 	sizediff = src_size < trg_size ? trg_size - src_size : 0;
 	if (sizediff >= max_size)
 		return 0;
@@ -2009,7 +2060,7 @@ static unsigned long free_unpacked(struct unpacked *n)
 	free_delta_index(n->index);
 	n->index = NULL;
 	if (n->data) {
-		freed_mem += n->entry->size;
+		freed_mem += SIZE(n->entry);
 		FREE_AND_NULL(n->data);
 	}
 	n->entry = NULL;
@@ -2459,7 +2510,8 @@ static void prepare_pack(int window, int depth)
 			 */
 			continue;
 
-		if (!entry->type_valid || entry->size < 50)
+		if (!entry->type_valid ||
+		    oe_size_less_than(&to_pack, entry, 50))
 			continue;
 
 		if (entry->no_try_delta)
diff --git a/pack-objects.c b/pack-objects.c
index 13f2b2bff2..59c6e40a02 100644
--- a/pack-objects.c
+++ b/pack-objects.c
@@ -120,8 +120,15 @@ struct object_entry *packlist_alloc(struct packing_data *pdata,
 {
 	struct object_entry *new_entry;
 
-	if (!pdata->nr_objects)
+	if (!pdata->nr_objects) {
 		prepare_in_pack_by_idx(pdata);
+		if (getenv("GIT_TEST_OE_SIZE_BITS")) {
+			int bits = atoi(getenv("GIT_TEST_OE_SIZE_BITS"));;
+			pdata->oe_size_limit = 1 << bits;
+		}
+		if (!pdata->oe_size_limit)
+			pdata->oe_size_limit = 1 << OE_SIZE_BITS;
+	}
 	if (pdata->nr_objects >= pdata->nr_alloc) {
 		pdata->nr_alloc = (pdata->nr_alloc  + 1024) * 3 / 2;
 		REALLOC_ARRAY(pdata->objects, pdata->nr_alloc);
diff --git a/pack-objects.h b/pack-objects.h
index d23e17050c..8bb082f22f 100644
--- a/pack-objects.h
+++ b/pack-objects.h
@@ -5,6 +5,7 @@
 #define OE_DEPTH_BITS		12
 #define OE_IN_PACK_BITS		10
 #define OE_Z_DELTA_BITS		16
+#define OE_SIZE_BITS		31
 
 /*
  * State flags for depth-first search used for analyzing delta cycles.
@@ -72,7 +73,8 @@ enum dfs_state {
  */
 struct object_entry {
 	struct pack_idx_entry idx;
-	unsigned long size;	/* uncompressed size */
+	uint32_t size_:OE_SIZE_BITS;
+	uint32_t size_valid:1;
 	unsigned in_pack_idx:OE_IN_PACK_BITS;	/* already in pack */
 	off_t in_pack_offset;
 	uint32_t delta_idx;	/* delta base object */
@@ -117,6 +119,8 @@ struct packing_data {
 	 */
 	struct packed_git **in_pack_by_idx;
 	struct packed_git **in_pack;
+
+	uintmax_t oe_size_limit;
 };
 
 struct object_entry *packlist_alloc(struct packing_data *pdata,
@@ -256,4 +260,51 @@ static inline void oe_set_delta_sibling(struct packing_data *pack,
 		e->delta_sibling_idx = 0;
 }
 
+unsigned long oe_get_size_slow(struct packing_data *pack,
+			       const struct object_entry *e);
+static inline unsigned long oe_size(struct packing_data *pack,
+				    const struct object_entry *e)
+{
+	if (e->size_valid)
+		return e->size_;
+
+	return oe_get_size_slow(pack, e);
+}
+
+static inline int oe_size_less_than(struct packing_data *pack,
+				    const struct object_entry *lhs,
+				    unsigned long rhs)
+{
+	if (lhs->size_valid)
+		return lhs->size_ < rhs;
+	if (rhs < pack->oe_size_limit) /* rhs < 2^x <= lhs ? */
+		return 0;
+	return oe_get_size_slow(pack, lhs) < rhs;
+}
+
+static inline int oe_size_greater_than(struct packing_data *pack,
+				       const struct object_entry *lhs,
+				       unsigned long rhs)
+{
+	if (lhs->size_valid)
+		return lhs->size_ > rhs;
+	if (rhs < pack->oe_size_limit) /* rhs < 2^x <= lhs ? */
+		return 1;
+	return oe_get_size_slow(pack, lhs) > rhs;
+}
+
+static inline void oe_set_size(struct packing_data *pack,
+			       struct object_entry *e,
+			       unsigned long size)
+{
+	if (size < pack->oe_size_limit) {
+		e->size_ = size;
+		e->size_valid = 1;
+	} else {
+		e->size_valid = 0;
+		if (oe_get_size_slow(pack, e) != size)
+			die("BUG: 'size' is supposed to be the object size!");
+	}
+}
+
 #endif
diff --git a/t/README b/t/README
index c6130ff16d..da117ca734 100644
--- a/t/README
+++ b/t/README
@@ -306,6 +306,12 @@ GIT_TEST_FULL_IN_PACK_ARRAY exercises the uncommon pack-objects code
 path where there are more than 1024 packs even if the actual number of
 packs in repository is below this limit.
 
+GIT_TEST_OE_SIZE_BITS=<bits> exercises the uncommon pack-objects
+code path where we do not cache objecct size in memory and read it
+from existing packs on demand. This normally only happens when the
+object size is over 2GB. This variable forces the code path on any
+object larger than 2^<bits> bytes.
+
 Naming Tests
 ------------
 
-- 
2.17.0.rc0.348.gd5a49e0b6f


  parent reply index

Thread overview: 272+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-02-28  9:27 Reduce pack-objects memory footprint? Duy Nguyen
2018-02-28 10:17 ` Jeff King
2018-02-28 10:58   ` Duy Nguyen
2018-02-28 11:11     ` Jeff King
2018-02-28 11:24       ` Duy Nguyen
2018-02-28 18:22 ` Eric Wong
2018-03-01  9:00   ` Duy Nguyen
2018-03-01  9:10 ` [PATCH 00/11] Reduce pack-objects memory footprint Nguyễn Thái Ngọc Duy
2018-03-01  9:10   ` [PATCH 01/11] pack-objects: document holes in struct object_entry.h Nguyễn Thái Ngọc Duy
2018-03-01  9:10   ` [PATCH 02/11] pack-objects: turn type and in_pack_type to bitfields Nguyễn Thái Ngọc Duy
2018-03-01  9:10   ` [PATCH 03/11] pack-objects: use bitfield for object_entry::dfs_state Nguyễn Thái Ngọc Duy
2018-03-01  9:10   ` [PATCH 04/11] pack-objects: use bitfield for object_entry::depth Nguyễn Thái Ngọc Duy
2018-03-01 18:00     ` Junio C Hamano
2018-03-01  9:10   ` [PATCH 05/11] pack-objects: note about in_pack_header_size Nguyễn Thái Ngọc Duy
2018-03-01  9:10   ` [PATCH 06/11] pack-objects: move in_pack_pos out of struct object_entry Nguyễn Thái Ngọc Duy
2018-03-01  9:10   ` [PATCH 07/11] pack-objects: move in_pack " Nguyễn Thái Ngọc Duy
2018-03-01 12:37     ` Ævar Arnfjörð Bjarmason
2018-03-01 14:49     ` Jeff King
2018-03-02  0:02       ` Duy Nguyen
2018-03-01 18:05     ` Junio C Hamano
2018-03-01  9:10   ` [PATCH 08/11] pack-objects: faster reverse packed_git lookup Nguyễn Thái Ngọc Duy
2018-03-01  9:10   ` [PATCH 09/11] pack-objects: refer to delta objects by index instead of pointer Nguyễn Thái Ngọc Duy
2018-03-01 18:08     ` Junio C Hamano
2018-03-01  9:10   ` [PATCH 10/11] pack-objects: reorder 'hash' to pack struct object_entry Nguyễn Thái Ngọc Duy
2018-03-01  9:10   ` [PATCH 11/11] pack-objects: increase pack file limit to 4096 Nguyễn Thái Ngọc Duy
2018-03-01 13:33   ` [PATCH 00/11] Reduce pack-objects memory footprint Ævar Arnfjörð Bjarmason
2018-03-02  0:14     ` Duy Nguyen
2018-03-02 10:57       ` Jeff King
2018-03-03  2:46   ` [PATCH/RFC v2 0/9] " Nguyễn Thái Ngọc Duy
2018-03-03  2:46     ` [PATCH/RFC v2 1/9] pack-objects: document holes in struct object_entry.h Nguyễn Thái Ngọc Duy
2018-03-03  2:46     ` [PATCH/RFC v2 2/9] pack-objects: turn type and in_pack_type to bitfields Nguyễn Thái Ngọc Duy
2018-03-03  2:47     ` [PATCH/RFC v2 3/9] pack-objects: use bitfield for object_entry::dfs_state Nguyễn Thái Ngọc Duy
2018-03-03  2:47     ` [PATCH/RFC v2 4/9] pack-objects: use bitfield for object_entry::depth Nguyễn Thái Ngọc Duy
2018-03-03  2:47     ` [PATCH/RFC v2 5/9] pack-objects: note about in_pack_header_size Nguyễn Thái Ngọc Duy
2018-03-03  2:47     ` [PATCH/RFC v2 6/9] pack-objects: move in_pack_pos out of struct object_entry Nguyễn Thái Ngọc Duy
2018-03-03  2:47     ` [PATCH/RFC v2 7/9] pack-objects: move in_pack " Nguyễn Thái Ngọc Duy
2018-03-03  2:47     ` [PATCH/RFC v2 8/9] pack-objects: refer to delta objects by index instead of pointer Nguyễn Thái Ngọc Duy
2018-03-03  2:47     ` [PATCH/RFC v2 9/9] pack-objects: reorder 'hash' to pack struct object_entry Nguyễn Thái Ngọc Duy
2018-03-05  9:28     ` [PATCH/RFC v2 0/9] Reduce pack-objects memory footprint Duy Nguyen
2018-03-08 11:42     ` [PATCH/RFC v3 00/12] " Nguyễn Thái Ngọc Duy
2018-03-08 11:42       ` [PATCH/RFC v3 01/12] pack-objects: a bit of document about struct object_entry Nguyễn Thái Ngọc Duy
2018-03-09 22:34         ` Junio C Hamano
2018-03-08 11:42       ` [PATCH/RFC v3 02/12] pack-objects: turn type and in_pack_type to bitfields Nguyễn Thái Ngọc Duy
2018-03-09 22:54         ` Junio C Hamano
2018-03-12 17:51           ` Duy Nguyen
2018-03-08 11:42       ` [PATCH/RFC v3 03/12] pack-objects: use bitfield for object_entry::dfs_state Nguyễn Thái Ngọc Duy
2018-03-08 11:42       ` [PATCH/RFC v3 04/12] pack-objects: use bitfield for object_entry::depth Nguyễn Thái Ngọc Duy
2018-03-09 23:07         ` Junio C Hamano
2018-03-08 11:42       ` [PATCH/RFC v3 05/12] pack-objects: note about in_pack_header_size Nguyễn Thái Ngọc Duy
2018-03-08 11:42       ` [PATCH/RFC v3 06/12] pack-objects: move in_pack_pos out of struct object_entry Nguyễn Thái Ngọc Duy
2018-03-08 11:42       ` [PATCH/RFC v3 07/12] pack-objects: move in_pack " Nguyễn Thái Ngọc Duy
2018-03-09 23:21         ` Junio C Hamano
2018-03-08 11:42       ` [PATCH/RFC v3 08/12] pack-objects: refer to delta objects by index instead of pointer Nguyễn Thái Ngọc Duy
2018-03-14 16:18         ` Junio C Hamano
2018-03-08 11:42       ` [PATCH/RFC v3 09/12] pack-objects: reorder 'hash' to pack struct object_entry Nguyễn Thái Ngọc Duy
2018-03-08 11:42       ` [PATCH/RFC v3 10/12] pack-objects: shrink z_delta_size field in " Nguyễn Thái Ngọc Duy
2018-03-08 11:42       ` [PATCH/RFC v3 11/12] pack-objects: shrink size " Nguyễn Thái Ngọc Duy
2018-03-08 11:42       ` [PATCH/RFC v3 12/12] pack-objects: shrink delta_size " Nguyễn Thái Ngọc Duy
2018-03-16 18:31       ` [PATCH v4 00/11] nd/pack-objects-pack-struct updates Nguyễn Thái Ngọc Duy
2018-03-16 18:31         ` [PATCH v4 01/11] pack-objects: a bit of document about struct object_entry Nguyễn Thái Ngọc Duy
2018-03-16 20:32           ` Junio C Hamano
2018-03-17 11:59             ` Duy Nguyen
2018-03-16 18:31         ` [PATCH v4 02/11] pack-objects: turn type and in_pack_type to bitfields Nguyễn Thái Ngọc Duy
2018-03-16 20:49           ` Junio C Hamano
2018-03-16 18:31         ` [PATCH v4 03/11] pack-objects: use bitfield for object_entry::dfs_state Nguyễn Thái Ngọc Duy
2018-03-16 18:31         ` [PATCH v4 04/11] pack-objects: use bitfield for object_entry::depth Nguyễn Thái Ngọc Duy
2018-03-16 18:31         ` [PATCH v4 05/11] pack-objects: move in_pack_pos out of struct object_entry Nguyễn Thái Ngọc Duy
2018-03-16 18:31         ` [PATCH v4 06/11] pack-objects: move in_pack " Nguyễn Thái Ngọc Duy
2018-03-26 20:39           ` Stefan Beller
2018-03-16 18:31         ` [PATCH v4 07/11] pack-objects: refer to delta objects by index instead of pointer Nguyễn Thái Ngọc Duy
2018-03-16 20:59           ` Junio C Hamano
2018-03-16 18:31         ` [PATCH v4 08/11] pack-objects: shrink z_delta_size field in struct object_entry Nguyễn Thái Ngọc Duy
2018-03-16 19:40           ` Junio C Hamano
2018-03-16 18:31         ` [PATCH v4 09/11] pack-objects: shrink size " Nguyễn Thái Ngọc Duy
2018-03-16 19:49           ` Junio C Hamano
2018-03-16 21:34             ` Junio C Hamano
2018-03-16 18:31         ` [PATCH v4 10/11] pack-objects: shrink delta_size " Nguyễn Thái Ngọc Duy
2018-03-16 18:32         ` [PATCH v4 11/11] pack-objects.h: reorder members to shrink " Nguyễn Thái Ngọc Duy
2018-03-16 21:02           ` Junio C Hamano
2018-03-17 12:07             ` Duy Nguyen
2018-03-17 14:10         ` [PATCH v5 00/11] nd/pack-objects-pack-struct updates Nguyễn Thái Ngọc Duy
2018-03-17 14:10           ` [PATCH v5 01/11] pack-objects: a bit of document about struct object_entry Nguyễn Thái Ngọc Duy
2018-03-17 14:10           ` [PATCH v5 02/11] pack-objects: turn type and in_pack_type to bitfields Nguyễn Thái Ngọc Duy
2018-03-17 14:10           ` [PATCH v5 03/11] pack-objects: use bitfield for object_entry::dfs_state Nguyễn Thái Ngọc Duy
2018-03-17 14:10           ` [PATCH v5 04/11] pack-objects: use bitfield for object_entry::depth Nguyễn Thái Ngọc Duy
2018-03-17 21:26             ` Ævar Arnfjörð Bjarmason
2018-03-17 14:10           ` [PATCH v5 05/11] pack-objects: move in_pack_pos out of struct object_entry Nguyễn Thái Ngọc Duy
2018-03-17 14:10           ` [PATCH v5 06/11] pack-objects: move in_pack " Nguyễn Thái Ngọc Duy
2018-03-17 14:10           ` [PATCH v5 07/11] pack-objects: refer to delta objects by index instead of pointer Nguyễn Thái Ngọc Duy
2018-03-17 14:10           ` [PATCH v5 08/11] pack-objects: shrink z_delta_size field in struct object_entry Nguyễn Thái Ngọc Duy
2018-03-17 14:10           ` [PATCH v5 09/11] pack-objects: shrink size " Nguyễn Thái Ngọc Duy
2018-03-17 19:57             ` Ævar Arnfjörð Bjarmason
2018-03-18  5:09             ` Junio C Hamano
2018-03-18  8:23               ` Duy Nguyen
2018-03-17 14:10           ` [PATCH v5 10/11] pack-objects: shrink delta_size " Nguyễn Thái Ngọc Duy
2018-03-17 14:10           ` [PATCH v5 11/11] pack-objects.h: reorder members to shrink " Nguyễn Thái Ngọc Duy
2018-03-17 19:53             ` Ævar Arnfjörð Bjarmason
2018-03-18  8:49               ` Duy Nguyen
2018-03-17 19:45           ` [PATCH v5 00/11] nd/pack-objects-pack-struct updates Ævar Arnfjörð Bjarmason
2018-03-17 19:47             ` Ævar Arnfjörð Bjarmason
2018-03-18 14:25           ` [PATCH v6 " Nguyễn Thái Ngọc Duy
2018-03-18 14:25             ` [PATCH v6 01/11] pack-objects: a bit of document about struct object_entry Nguyễn Thái Ngọc Duy
2018-03-18 14:25             ` [PATCH v6 02/11] pack-objects: turn type and in_pack_type to bitfields Nguyễn Thái Ngọc Duy
2018-03-18 14:25             ` [PATCH v6 03/11] pack-objects: use bitfield for object_entry::dfs_state Nguyễn Thái Ngọc Duy
2018-03-18 14:25             ` [PATCH v6 04/11] pack-objects: use bitfield for object_entry::depth Nguyễn Thái Ngọc Duy
2018-03-18 14:25             ` [PATCH v6 05/11] pack-objects: move in_pack_pos out of struct object_entry Nguyễn Thái Ngọc Duy
2018-03-18 14:25             ` [PATCH v6 06/11] pack-objects: move in_pack " Nguyễn Thái Ngọc Duy
2018-03-18 14:25             ` [PATCH v6 07/11] pack-objects: refer to delta objects by index instead of pointer Nguyễn Thái Ngọc Duy
2018-03-18 14:25             ` [PATCH v6 08/11] pack-objects: shrink z_delta_size field in struct object_entry Nguyễn Thái Ngọc Duy
2018-03-18 14:25             ` [PATCH v6 09/11] pack-objects: shrink size " Nguyễn Thái Ngọc Duy
2018-03-18 14:49               ` Ævar Arnfjörð Bjarmason
2018-03-19 16:19               ` Junio C Hamano
2018-03-19 16:23                 ` Duy Nguyen
2018-03-19 16:43               ` Junio C Hamano
2018-03-19 16:54                 ` Duy Nguyen
2018-03-19 18:29                   ` Junio C Hamano
2018-03-19 18:45                     ` Duy Nguyen
2018-03-19 20:10                       ` Junio C Hamano
2018-03-20 18:08                         ` Duy Nguyen
2018-03-20 18:22                           ` Junio C Hamano
2018-03-21  8:03                           ` Jeff King
2018-03-21 16:12                             ` Duy Nguyen
2018-03-20 18:17                 ` Duy Nguyen
2018-03-18 14:25             ` [PATCH v6 10/11] pack-objects: shrink delta_size " Nguyễn Thái Ngọc Duy
2018-03-18 14:25             ` [PATCH v6 11/11] pack-objects: reorder members to shrink " Nguyễn Thái Ngọc Duy
2018-03-18 14:51             ` [PATCH v6 00/11] nd/pack-objects-pack-struct updates Ævar Arnfjörð Bjarmason
2018-03-21  8:24             ` Jeff King
2018-03-21 15:59               ` Duy Nguyen
2018-03-21 16:17                 ` Ævar Arnfjörð Bjarmason
2018-03-21 16:22                   ` Duy Nguyen
2018-03-21 16:46                 ` Duy Nguyen
2018-03-21 19:11                   ` Junio C Hamano
2018-03-22  9:32                 ` Jeff King
2018-03-22  9:46                   ` Jeff King
2018-03-22 10:57                   ` Duy Nguyen
2018-03-22 11:52                     ` Jeff King
2018-03-22 17:04                       ` Duy Nguyen
2018-03-23  1:28                   ` Ramsay Jones
2018-03-23  2:46                     ` Jeff King
2018-03-23  5:50                       ` Jeff King
2018-03-23 16:01                         ` Ramsay Jones
2018-03-24  6:40                           ` Jeff King
2018-03-23  7:05                       ` Duy Nguyen
2018-03-23 14:03                       ` Ramsay Jones
2018-03-21 16:31               ` Ævar Arnfjörð Bjarmason
2018-03-21 16:53                 ` Junio C Hamano
2018-03-21 17:00                   ` Duy Nguyen
2018-03-22  8:07                 ` Jeff King
2018-03-22  8:23                   ` Duy Nguyen
2018-03-22 10:01                     ` Jeff King
2018-03-24  6:33             ` [PATCH v7 00/13] " Nguyễn Thái Ngọc Duy
2018-03-24  6:33               ` [PATCH v7 01/13] pack-objects: a bit of document about struct object_entry Nguyễn Thái Ngọc Duy
2018-03-24  6:33               ` [PATCH v7 02/13] pack-objects: turn type and in_pack_type to bitfields Nguyễn Thái Ngọc Duy
2018-03-30 20:18                 ` Jeff King
2018-03-24  6:33               ` [PATCH v7 03/13] pack-objects: use bitfield for object_entry::dfs_state Nguyễn Thái Ngọc Duy
2018-03-30 20:23                 ` Jeff King
2018-03-24  6:33               ` [PATCH v7 04/13] pack-objects: use bitfield for object_entry::depth Nguyễn Thái Ngọc Duy
2018-03-30 20:26                 ` Jeff King
2018-03-24  6:33               ` [PATCH v7 05/13] pack-objects: move in_pack_pos out of struct object_entry Nguyễn Thái Ngọc Duy
2018-03-30 20:30                 ` Jeff King
2018-03-24  6:33               ` [PATCH v7 06/13] pack-objects: move in_pack " Nguyễn Thái Ngọc Duy
2018-03-24  9:42                 ` Ævar Arnfjörð Bjarmason
2018-03-24 12:26                   ` Duy Nguyen
2018-03-24 12:13                 ` Ævar Arnfjörð Bjarmason
2018-03-30 20:48                 ` Jeff King
2018-03-31  4:51                   ` Duy Nguyen
2018-03-31 10:20                     ` Jeff King
2018-03-31 10:45                       ` Duy Nguyen
2018-03-24  6:33               ` [PATCH v7 07/13] pack-objects: refer to delta objects by index instead of pointer Nguyễn Thái Ngọc Duy
2018-03-30 20:53                 ` Jeff King
2018-03-24  6:33               ` [PATCH v7 08/13] pack-objects: shrink z_delta_size field in struct object_entry Nguyễn Thái Ngọc Duy
2018-03-30 20:59                 ` Jeff King
2018-03-31  4:40                   ` Duy Nguyen
2018-03-31 10:17                     ` Jeff King
2018-03-24  6:33               ` [PATCH v7 09/13] pack-objects: don't check size when the object is bad Nguyễn Thái Ngọc Duy
2018-03-24  6:33               ` [PATCH v7 10/13] pack-objects: clarify the use of object_entry::size Nguyễn Thái Ngọc Duy
2018-03-30 21:04                 ` Jeff King
2018-03-31  4:35                   ` Duy Nguyen
2018-03-31 10:13                     ` Jeff King
2018-03-24  6:33               ` Nguyễn Thái Ngọc Duy [this message]
2018-03-30 21:18                 ` [PATCH v7 11/13] pack-objects: shrink size field in struct object_entry Jeff King
2018-03-24  6:33               ` [PATCH v7 12/13] pack-objects: shrink delta_size " Nguyễn Thái Ngọc Duy
2018-03-30 21:24                 ` Jeff King
2018-03-31  4:21                   ` Duy Nguyen
2018-03-31  9:10                   ` Duy Nguyen
2018-03-24  6:33               ` [PATCH v7 13/13] pack-objects: reorder members to shrink " Nguyễn Thái Ngọc Duy
2018-03-30 21:26                 ` Jeff King
2018-03-31  4:10                   ` Duy Nguyen
2018-03-26 15:13               ` [PATCH v7 00/13] nd/pack-objects-pack-struct updates Jeff King
2018-03-26 17:04                 ` Duy Nguyen
2018-03-27 16:53                   ` Jeff King
2018-03-31 10:02               ` [PATCH v8 00/15] " Nguyễn Thái Ngọc Duy
2018-03-31 10:02                 ` [PATCH v8 01/15] t/README: mention about running the test suite in special modes Nguyễn Thái Ngọc Duy
2018-03-31 10:02                 ` [PATCH v8 02/15] pack-objects: a bit of document about struct object_entry Nguyễn Thái Ngọc Duy
2018-03-31 10:02                 ` [PATCH v8 03/15] pack-objects: turn type and in_pack_type to bitfields Nguyễn Thái Ngọc Duy
2018-03-31 10:03                 ` [PATCH v8 04/15] pack-objects: use bitfield for object_entry::dfs_state Nguyễn Thái Ngọc Duy
2018-03-31 10:03                 ` [PATCH v8 05/15] pack-objects: use bitfield for object_entry::depth Nguyễn Thái Ngọc Duy
2018-03-31 10:03                 ` [PATCH v8 06/15] pack-objects: move in_pack_pos out of struct object_entry Nguyễn Thái Ngọc Duy
2018-03-31 10:03                 ` [PATCH v8 07/15] pack-objects: move in_pack " Nguyễn Thái Ngọc Duy
2018-03-31 10:03                 ` [PATCH v8 08/15] pack-objects: refer to delta objects by index instead of pointer Nguyễn Thái Ngọc Duy
2018-03-31 10:03                 ` [PATCH v8 09/15] pack-objects: shrink z_delta_size field in struct object_entry Nguyễn Thái Ngọc Duy
2018-03-31 10:03                 ` [PATCH v8 10/15] pack-objects: don't check size when the object is bad Nguyễn Thái Ngọc Duy
2018-03-31 10:03                 ` [PATCH v8 11/15] pack-objects: clarify the use of object_entry::size Nguyễn Thái Ngọc Duy
2018-03-31 10:03                 ` [PATCH v8 12/15] pack-objects: shrink size field in struct object_entry Nguyễn Thái Ngọc Duy
2018-03-31 10:03                 ` [PATCH v8 13/15] pack-objects: shrink delta_size " Nguyễn Thái Ngọc Duy
2018-03-31 10:03                 ` [PATCH v8 14/15] pack-objects: reorder members to shrink " Nguyễn Thái Ngọc Duy
2018-03-31 10:03                 ` [PATCH v8 15/15] ci: exercise the whole test suite with uncommon code in pack-objects Nguyễn Thái Ngọc Duy
2018-03-31 11:36                 ` [PATCH v8 00/15] nd/pack-objects-pack-struct updates Ævar Arnfjörð Bjarmason
2018-03-31 12:08                   ` Duy Nguyen
2018-03-31 15:43                     ` Ævar Arnfjörð Bjarmason
2018-04-06 21:47                 ` Jeff King
2018-03-01  9:20 ` [PATCH/RFC 0/1] Avoid expensive 'repack -ad' in gc --auto Nguyễn Thái Ngọc Duy
2018-03-01  9:20   ` [PATCH/RFC 1/1] gc --auto: exclude the largest giant pack in low-memory config Nguyễn Thái Ngọc Duy
2018-03-01 18:14     ` Junio C Hamano
2018-03-02  0:00       ` Duy Nguyen
2018-03-05 14:00     ` Ævar Arnfjörð Bjarmason
2018-03-06 10:41   ` [PATCH v2 0/5] Avoid expensive 'repack -ad' in gc --auto Nguyễn Thái Ngọc Duy
2018-03-06 10:41     ` [PATCH v2 1/5] fixup! Add a test showing that 'git repack' throws away grafted-away parents Nguyễn Thái Ngọc Duy
2018-03-06 18:01       ` Junio C Hamano
2018-03-06 10:41     ` [PATCH v2 2/5] repack: add --keep-pack option Nguyễn Thái Ngọc Duy
2018-03-06 18:25       ` Junio C Hamano
2018-03-07 10:19         ` Duy Nguyen
2018-03-06 10:41     ` [PATCH v2 3/5] gc --auto: exclude base pack if not enough mem to "repack -ad" Nguyễn Thái Ngọc Duy
2018-03-06 19:19       ` Junio C Hamano
2018-03-07 10:48         ` Duy Nguyen
2018-03-07 18:38           ` Junio C Hamano
2018-03-12 18:56             ` Ævar Arnfjörð Bjarmason
2018-03-12 21:16               ` Junio C Hamano
2018-03-12 22:01                 ` Ævar Arnfjörð Bjarmason
2018-03-15 16:48               ` Duy Nguyen
2018-03-07 10:48       ` Johannes Schindelin
2018-03-07 18:40         ` Junio C Hamano
2018-03-12 19:30       ` Ævar Arnfjörð Bjarmason
2018-03-15 17:00         ` Duy Nguyen
2018-03-15 19:21           ` Ævar Arnfjörð Bjarmason
2018-03-16 17:47             ` Duy Nguyen
2018-03-06 10:41     ` [PATCH v2 4/5] pack-objects: show some progress when counting kept objects Nguyễn Thái Ngọc Duy
2018-03-12 18:32       ` Ævar Arnfjörð Bjarmason
2018-03-16 19:14         ` Duy Nguyen
2018-03-16 20:13           ` Duy Nguyen
2018-03-06 10:41     ` [PATCH v2 5/5] pack-objects: display progress in get_object_details() Nguyễn Thái Ngọc Duy
2018-03-06 17:49     ` [PATCH v2 0/5] Avoid expensive 'repack -ad' in gc --auto Junio C Hamano
2018-03-16 19:27     ` [PATCH v3 0/7] nd/repack-keep-pack updates Nguyễn Thái Ngọc Duy
2018-03-16 19:27       ` [PATCH v3 1/7] repack: add --keep-pack option Nguyễn Thái Ngọc Duy
2018-03-16 19:27       ` [PATCH v3 2/7] gc: add --keep-base-pack Nguyễn Thái Ngọc Duy
2018-03-16 21:05         ` Ævar Arnfjörð Bjarmason
2018-03-19 17:26           ` Duy Nguyen
2018-03-19 19:04             ` Ævar Arnfjörð Bjarmason
2018-03-16 21:25         ` Ævar Arnfjörð Bjarmason
2018-03-16 19:27       ` [PATCH v3 3/7] gc: detect base packs based on gc.bigPackThreshold config Nguyễn Thái Ngọc Duy
2018-03-16 21:02         ` Ævar Arnfjörð Bjarmason
2018-03-16 19:27       ` [PATCH v3 4/7] gc --auto: exclude base pack if not enough mem to "repack -ad" Nguyễn Thái Ngọc Duy
2018-03-16 21:14         ` Ævar Arnfjörð Bjarmason
2018-03-16 19:27       ` [PATCH v3 5/7] gc: handle a corner case in gc.bigPackThreshold Nguyễn Thái Ngọc Duy
2018-03-16 21:10         ` Ævar Arnfjörð Bjarmason
2018-03-16 19:27       ` [PATCH v3 6/7] pack-objects: show some progress when counting kept objects Nguyễn Thái Ngọc Duy
2018-03-16 19:27       ` [PATCH v3 7/7] pack-objects: display progress in get_object_details() Nguyễn Thái Ngọc Duy
2018-03-24  7:25       ` [PATCH v4 0/7] nd/repack-keep-pack updates Nguyễn Thái Ngọc Duy
2018-03-24  7:25         ` [PATCH v4 1/7] t7700: have closing quote of a test at the beginning of line Nguyễn Thái Ngọc Duy
2018-03-24  7:25         ` [PATCH v4 2/7] repack: add --keep-pack option Nguyễn Thái Ngọc Duy
2018-03-24  7:25         ` [PATCH v4 3/7] gc: add --keep-largest-pack option Nguyễn Thái Ngọc Duy
2018-03-24  7:25         ` [PATCH v4 4/7] gc: add gc.bigPackThreshold config Nguyễn Thái Ngọc Duy
2018-03-24  7:25         ` [PATCH v4 5/7] gc: handle a corner case in gc.bigPackThreshold Nguyễn Thái Ngọc Duy
2018-03-24  7:25         ` [PATCH v4 6/7] gc --auto: exclude base pack if not enough mem to "repack -ad" Nguyễn Thái Ngọc Duy
2018-03-24  7:25         ` [PATCH v4 7/7] pack-objects: show some progress when counting kept objects Nguyễn Thái Ngọc Duy
2018-03-02 10:18 ` Reduce pack-objects memory footprint? Duy Nguyen
2018-03-02 10:37   ` Eric Wong
2018-03-02 10:54   ` Jeff King
2018-03-02 10:55     ` Duy Nguyen
2018-03-02 14:38     ` Duy Nguyen
2018-03-17 22:05 ` Why does pack-objects use so much memory on incremental packing? Ævar Arnfjörð Bjarmason
2018-03-18  8:37   ` Duy Nguyen
2018-03-20  5:28   ` Jeff King

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