AMD64位系统如何优化编译glibc？

我想让我的glibc速度更快一些，更精简一些。我需要使用哪些参数？

Don't do that！

刚把glibc升级成2.10.1，参考了Fedora的spec

glibc2.10的一些更新：

* New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
Implemented by Ulrich Drepper.

* New Linux interfaces: accept4, fallocate, fallocate64.
Implemented by Ulrich Drepper.

* Correct declarations of string function when used in C++ code. This
could lead to compile errors for invalid C++ code.

* XPG7/POSIX 2008 compilation environment. Many GNU-specific functions
are now in POSIX.

* New POSIX 2008 interface: psiginfo
Implemented by Ulrich Drepper.

* New ISO C++1x interfaces: quick_exit, at_quick_exit
Implemented by Ulrich Drepper.

* Support for selecting between multiple function definitions at runtime
using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.

* The libcrypt library can now use the hash function implementations in
NSS. Implemented by Ulrich Drepper.

* The malloc implementation can be compiled to be less memory efficient
but higher performing in multi-threaded programs.
Implemented by Ulrich Drepper.

* New locales: nan_TW@latin, ks_IN

* Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for
x86-64. Implemented by Ulrich Drepper.

* Extended printf hook support. It is possible to use user-defined
types and extend existing format specifiers.
Implemented by Ulrich Drepper.

* Handling for group shadow files has been added.
Implemented by Ulrich Drepper.

楼上，cvs 发布的 glibc 那来的 2.10.1，稍稍让人满意些的是准备切换到 git 发布。

另，eglibc 已进入 debian sid，您不妨直接上 eglibc-2.10 替换 glibc-2.10，看看效果如何。
http://www.eglibc.org/
http://www.eglibc.org/repository
http://www.eglibc.org/faq

cvs上的确有2.10.1，不过我是从git下的

今天看见 SVN book 的 changelog 连同相关的 bug report，说维护者他们看了 Fedora 及 DIY Linux 都为 glibc 优化，於是随之加入了 -O3 及 -pipe 参数，并说为优化的警告经已过时

详见：

http://www.linuxfromscratch.org/lfs/...changelog.html

http://wiki.linuxfromscratch.org/lfs/ticket/2299

一反以往常态，晕死！