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author | Corinna Vinschen <corinna@vinschen.de> | 2022-08-22 12:01:15 +0200 |
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committer | Corinna Vinschen <corinna@vinschen.de> | 2022-08-22 12:01:15 +0200 |
commit | 07ec40170a32cc614818ec8fa13cacef0a8252a0 (patch) | |
tree | 1b26e74ed9338d738f24bf9140f960ddb9ec92ff /winsup/cygwin/spawn.cc | |
parent | 1b3a0effd40a0d75887ee9d2909dd4e8c5f20d37 (diff) | |
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Cygwin: smallprint.cc: Convert tmpbuf to lockless
The old technique was from a time when we had to reduce stack pressure
by moving 64K buffers elsewhere. It was implemented using a static
global buffer, guarded by a muto. However, that adds a lock which may
unnecessarily serialize threads.
Use Windows heap buffers per invocation instead. HeapAlloc/HeapFree are
pretty fast, scale nicely in multithreaded scenarios and don't serialize
threads unnecessarily.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Diffstat (limited to 'winsup/cygwin/spawn.cc')
0 files changed, 0 insertions, 0 deletions