[gnutls-devel] GnuTLS | Allocate pathname on heap instead of on stack (!1493)

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Tue Dec 21 07:18:38 CET 2021

Daiki Ueno commented on a discussion: https://gitlab.com/gnutls/gnutls/-/merge_requests/1493#note_790832054

I would agree with you if this was a general purpose memory allocation logic. However, in this specific change, all the allocations are immediately followed by accessing the filesystem, which I guess could have far larger latency than malloc. There are several factors that may affect this assumption (e.g., disk cache, malloc implementation may end up with sbrk/brk syscalls), but I am not sure if it is a good idea to optimize at this level, unless we find it really a bottleneck.

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