kernel/git - git - PowerEL Git System

Commit Graph

Author	SHA1	Message	Date
Linus Torvalds	885a86abe2	Shrink "struct object" a bit This shrinks "struct object" by a small amount, by getting rid of the "struct type *" pointer and replacing it with a 3-bit bitfield instead. In addition, we merge the bitfields and the "flags" field, which incidentally should also remove a useless 4-byte padding from the object when in 64-bit mode. Now, our "struct object" is still too damn large, but it's now less obviously bloated, and of the remaining fields, only the "util" (which is not used by most things) is clearly something that should be eventually discarded. This shrinks the "git-rev-list --all" memory use by about 2.5% on the kernel archive (and, perhaps more importantly, on the larger mozilla archive). That may not sound like much, but I suspect it's more on a 64-bit platform. There are other remaining inefficiencies (the parent lists, for example, probably have horrible malloc overhead), but this was pretty obvious. Most of the patch is just changing the comparison of the "type" pointer from one of the constant string pointers to the appropriate new TYPE_xxx small integer constant. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	8ac4838af4	server-info: skip empty lines. Now we allow an empty line in objects/info/packs file, recognize that and stop complaining. Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	21b1aced83	objects/info/packs: work around bug in http-fetch.c::fetch_indices() The code to fetch pack index files in deployed clients have a bug that causes it to ignore the pack file on the last line of objects/info/packs file, so append an empty line to work it around. Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	2dee581667	qsort(): ptrdiff_t may be larger than int This is a companion patch to `e23eff8be9` commit. The same logic, the same rationale that a comparison function that returns an int should not just compute a ptrdiff_t and return it. Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	9cebe90bc5	server-info.c: and two functions are not used anymore. Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	f13d7db4af	server-info.c: use pack_local like everybody else. Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	3e15c67c90	server-info: throw away T computation as well. Again, dumb transport clients are too dumb to make use of the top objects information to make a choice among multiple packs, so computing these lines are useless for now. We could resurrect them if needed later. Also dumb transport clients presumably can do their own approximation by downloading idx files to see how relevant each pack is for their fetch. Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	d5eac49868	server-info: stop sorting packs by latest date. This does not seem to buy us much, for the same reason as the previous change. Dumb clients are still too dumb. Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	6f42f89c1f	server-info.c: drop unused D lines. We tried to compute pack interdependency information in $GIT_DIR/objects/info/packs, hoping that dumb transports would make use of it when choosing from multiple choice, but that has never materialized, so stop computing D lines for now. Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	27dedf0c3b	GIT 0.99.9j aka 1.0rc3 Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Sergey Vlasov	4a4e6fd74f	Rework object refs tracking to reduce memory usage Store pointers to referenced objects in a variable sized array instead of linked list. This cuts down memory usage of utilities which use object references; e.g., git-fsck-objects --full on the git.git repository consumes about 2 MB of memory tracked by Massif instead of 7 MB before the change. Object refs are still the biggest consumer of memory (57%), but the malloc overhead for a single block instead of a linked list is substantially smaller. Signed-off-by: Sergey Vlasov <vsu@altlinux.ru> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	9534f40bc4	Be careful when dereferencing tags. One caller of deref_tag() was not careful enough to make sure what deref_tag() returned was not NULL (i.e. we found a tag object that points at an object we do not have). Fix it, and warn about refs that point at such an incomplete tag where needed. Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	f6b42a81fd	Show peeled onion from upload-pack and server-info. This updates git-ls-remote to show SHA1 names of objects that are referred by tags, in the "ref^{}" notation. This would make git-findtags (without -t flag) almost trivial. git-peek-remote . \| sed -ne "s:^$target "'refs/tags/$.$^{}$:\1:p' Also Pasky could do: git-ls-remote --tags $remote \| sed -ne 's:$ refs/tags/.$^{}$:\1:p' to find out what object each of the remote tags refers to, and if he has one locally, run "git-fetch $remote tag $tagname" to automatically catch up with the upstream tags. Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
robfitz@273k.net	f22ca7c50d	Reduce memory usage in git-update-server-info. Modify parse_object_cheap() to also free all the entries from the tree data structures. Signed-off-by: Robert Fitzsimons <robfitz@273k.net> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	60d0526aaa	Unoptimize info/refs creation. The code did not catch the case where you removed an existing ref without changing anything else. We are not talking about hundreds of refs anyway, so remove that optimization. Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	0f56479d73	Retire info/rev-cache It was one of those things that were well intentioned but did not turn out to be useful in practice. Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	2c04662d89	Revert "Replace zero-length array decls with []." This reverts `6c5f9baa3b` commit, whose change breaks gcc-2.95. Not that I ignore portability to compilers that are properly C99, but keeping compilation with GCC working is more important, at least for now. We would probably end up declaring with "name[1]" and teach the allocator to subtract one if we really aimed for portability, but that is left for later rounds. Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Jason Riedy	6c5f9baa3b	Replace zero-length array decls with []. C99 denotes variable-sized members with [], not [0]. Signed-off-by: Jason Riedy <ejr@cs.berkeley.edu>	20 years ago
Linus Torvalds	4d8fa916c9	[PATCH] Fix sparse warnings A few sparse warnings have crept in again since I checked last time: undeclared variables with global scope. Fix them by marking the private variables properly "static". Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>	20 years ago
Junio C Hamano	b614e3d757	server-info: do not complain if a tag points at a non-commit. Linux 2.6 tree has one of those tree tags. Signed-off-by: Junio C Hamano <junkio@cox.net>	20 years ago
Junio C Hamano	8f3f9b09dc	[PATCH] Add update-server-info. The git-update-server-info command prepares informational files to help clients discover the contents of a repository, and pull from it via a dumb transport protocols. Currently, the following files are produced. - The $repo/info/refs file lists the name of heads and tags available in the $repo/refs/ directory, along with their SHA1. This can be used by git-ls-remote command running on the client side. - The $repo/info/rev-cache file describes the commit ancestry reachable from references in the $repo/refs/ directory. This file is in an append-only binary format to make the server side friendly to rsync mirroring scheme, and can be read by git-show-rev-cache command. - The $repo/objects/info/pack file lists the name of the packs available, the interdependencies among them, and the head commits and tags contained in them. Along with the other two files, this is designed to help clients to make smart pull decisions. The git-receive-pack command is changed to invoke it at the end, so just after a push to a public repository finishes via "git push", the server info is automatically updated. In addition, building of the rev-cache file can be done by a standalone git-build-rev-cache command separately. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>	20 years ago

20 Commits (ae20de5386f74dbde991186694cfdac323b21e47)