Re: PING [patch] malloc: add mxfast tunable

[Florian Weimer <fweimer at redhat dot com>]

* DJ Delorie:

>> +@deftp Tunable glibc.malloc.mxfast
>> +One of the optimizations malloc uses is to maintain a series of ''fast
>> +bins'' that hold chunks up to a specific size.  The default and
>> +maximum size which may be held this way is 80 bytes on 32-bit systems
>> +or 160 bytes on 64-bit systems.  Applications which value size over
>> +speed may choose to reduce the number of fast bins with this tunable.
>> +Note that the value specified includes malloc's internal overhead,
>> +which is normally the size of one pointer, so add 4 on 32-bit systems
>> +or 8 on 64-bit systems to the size passed to @code{malloc} for the
>> +largest bin size to enable.
>> +@end deftp

I think the quotes are wrong, they should be `` '' (ASCII, Texinfo will
transform them).  Or you could use @dfn and add an index entry.

Does the fastbin range depend on pointer or size or minimum malloc
alignment?  The latter is 16 bytes on some 32-bit architectures, even
though it is usually 8 bytes.

Thanks,
Florian