Before this commit, we claim that glibc's malloc implementation uses 2 arenas by default. But that's true only on 32-bit systems, and even there, it uses up to 2 arenas.
This commit fixes the wrong statement. The new statement is intentionally vague to reduce our maintenance burden.
For details, see: https://www.gnu.org/software/libc/manual/html_node/Memory-Allocation-Tunables.html#index-glibc_002emalloc_002earena_005fmax
Noticed in: #27642 (comment)
Before this commit, we claim that glibc's malloc implementation uses 2
arenas by default. But that's true only on 32-bit systems, and even
there, it uses *up* to 2 arenas.
This commit fixes the wrong statement. The new statement is
intentionally vague to reduce our maintenance burden.
For details, see:
https://www.gnu.org/software/libc/manual/html_node/Memory-Allocation-Tunables.html#index-glibc_002emalloc_002earena_005fmax
Noticed in:
https://github.com/bitcoin/bitcoin/pull/27642#issuecomment-1728103427
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lgtm 12f7257
ACK 12f7257b8f6ba0de1fb05b598e916c8b14bcab8c