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| author | Reid Kleckner <rnk@google.com> | 2019-04-02 22:11:58 +0000 |
|---|---|---|
| committer | Reid Kleckner <rnk@google.com> | 2019-04-02 22:11:58 +0000 |
| commit | cc525c97b7df198095124ee1fb68219e5a9189a5 (patch) | |
| tree | 0f3d1162b6f3a17b815b859447cd078bfa5d8f94 /lldb/packages/Python/lldbsuite/test/expression_command/context-object-objc/TestContextObjectObjc.py | |
| parent | 1b5310c2df3f39ca96dc3f1d9239d151a7204cd0 (diff) | |
| download | bcm5719-llvm-cc525c97b7df198095124ee1fb68219e5a9189a5.tar.gz bcm5719-llvm-cc525c97b7df198095124ee1fb68219e5a9189a5.zip | |
[COFF] Reduce the size of Chunk and SectionChunk, NFC
Summary:
Reorder the fields in both to use padding more efficiently, and add more
comments on the purpose of the fields.
Replace `std::vector<SectionChunk*> AssociativeChildren` with a
singly-linked list. This avoids the separate vector allocation to list
associative children, and shrinks the 3 pointers used for the typically
empty vector down to 1.
In the end, this reduces the sum of heap allocations used to link
browser_tests.exe with NO PDB by 13.10%, going from 2,248,728 KB to
1,954,071 KB of heap. These numbers exclude memory mapped files, which
are of course a significant factor in LLD's memory usage.
Reviewers: ruiu, mstorsjo, aganea
Subscribers: jdoerfert, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59797
llvm-svn: 357535
Diffstat (limited to 'lldb/packages/Python/lldbsuite/test/expression_command/context-object-objc/TestContextObjectObjc.py')
0 files changed, 0 insertions, 0 deletions
