pub const CONF: &'static [u8];Expand description
NUL-terminated: jemalloc reads this symbol as a const char *
(jemalloc/src/conf.c, jemalloc/src/jemalloc.c).
muzzy_decay_ms:0 is already jemalloc 5.3’s default – pinned explicitly
since the default has moved across releases, and because it means muzzy
pages are MADV_DONTNEED’d immediately, the opposite of what a higher
value would do.