NPTL(Native Posix Thread Library) have better performance and stability, and have already become the preferred thread library of Glibc.
NPTL（本地POSIX线程库）具有较好的性能和稳定性，已成为Glibc的首选线程库。
参考来源 - 嵌入式系统线程库同步机制的实现—《电脑知识与技术·学术交流》—2008年第31期—龙源期刊网·2,447,543篇论文数据，部分数据来源于NoteExpress
Linux USES the pthread library call pthread_create to spawn a thread.
Linux使用pthread库调用pthread_create来派生线程。
For example the Linux Kernel introduced a new threading library in 2.6. This was the Native POSIX Linux thread library (NPTL).
举个例子吧，Linux Kernel 2.6引入了一个新的线程库，也就是本地的POSIX Linux线程库(NPTL)。
Middleware must be able to hide the difference of different OS, so the thread library and its model are also brought forward.
另外由于中间件必须能够隐藏平台的差异，必须提供统一的线程库给用户。
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