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| author | DJ Delorie <dj@delorie.com> | 2016-02-09 17:18:28 -0500 |
|---|---|---|
| committer | DJ Delorie <dj@delorie.com> | 2016-02-09 17:18:28 -0500 |
| commit | 850602a447235f209cb35b6d8e6ae947e10225d1 (patch) | |
| tree | 924247a1ac1beb8228d35fcf0e18adf089b94e0e /scripts/check-execstack.awk | |
| parent | d2bb040b2a2f58b1ef80f01292bd722fce01d36a (diff) | |
| download | glibc-850602a447235f209cb35b6d8e6ae947e10225d1.tar.xz glibc-850602a447235f209cb35b6d8e6ae947e10225d1.zip | |
Initial attempt at a per-thread cache
If a malloc of size MAX_TCACHE_SIZE or smaller is asked for, a
thread-local cache is used. An entry in the cache is returned if
available, else a chunk of size N*8 is requested from the arena,
and broken into 8 (TCACHE_FILL_COUNT+1) N-sized chunks. One chunk
is returned and the rest are stored in the cache.
free() can also fill the cache, as long as there are fewer than
7 items in the cache, else the chunk is free'd as usual.
The cache is per-size so no searching is required.
Diffstat (limited to 'scripts/check-execstack.awk')
0 files changed, 0 insertions, 0 deletions