If anyone is interested in learning DTrace in detail, Amazon has a fairly comprehensive text: http://www.amazon.com/DTrace-Dynamic-Tracing-Solaris-FreeBSD...
Brendan Gregg？他能懂个啥 Solaris 嘛？！（我坐在键盘前时，手头边常备那本 DTrace 的书。这是一封粉丝信。非常感谢，你的工作让我成了一个更优秀的搞计算机的人。）
Brendan Gregg? What does he know about Solaris?!? (I keep the DTrace book within reach when I sit at the keyboard. This is fan mail. Many thanks, for your work has helped me become a better computer person.)
Brendan Gregg 的网站（和书）大概是最好的切入点（20 年前他在 Sun 的时候就参与了 DTrace 的研发和推广），而且他过去和现在都对推动 Linux 里的 eBPF 走得比当年的 DTrace 更远起到了关键作用：https://brendangregg.com/ebpf.html
Brendan Gregg's site (and book) is probably the best starting point (he was involved in DTrace work & rollout 20 years ago when at Sun) and was/is instrumental in pushing eBPF in Linux even further than DTrace ever went: https://brendangregg.com/ebpf.html
所以，背景信息是这样的。B. Gregg 在万恶的甲骨文收购之前是在 Sun 工作的。毫不夸张地说，关于 DTrace 的那本书[0]就是他写的。现在他在 Netflix（也就是说，据我所知，他在那个 Docker/Solaris 衍生品上没有任何既得利益[他的兴趣可能只是想从任何好使的工具里压榨出极佳的性能，而不是……
So, background info. B. Gregg was at Sun before the evil Oracle acquisition. He quite literally wrote the book[0] on DTrace. Now he's at Netflix (i.e., he has as far as I can tell no vested interest in either that Docker/Solaris derivative [his interest is probably just getting great performance out anything that works rather…
…kernel, and Linus has stated that he will never merge CDDL licensed code due to license incompability. Those Linux distros that distribute ZFS do so as a separate module, not part of the Linux kernel. DTrace was GPL licensed too late (2018), something even Brendan Gregg stated as he finds eBPF more capable (and he is a leading expert on DTrace).
如果有人想深入学习 DTrace，亚马逊上有一本相当全面的书：http://www.amazon.com/DTrace-Dynamic-Tracing-Solaris-FreeBSD...
If anyone is interested in learning DTrace in detail, Amazon has a fairly comprehensive text: http://www.amazon.com/DTrace-Dynamic-Tracing-Solaris-FreeBSD...
Brendan Gregg？他能懂个啥 Solaris 嘛？！（我坐在键盘前时，手头边常备那本 DTrace 的书。这是一封粉丝信。非常感谢，你的工作让我成了一个更优秀的搞计算机的人。）
Brendan Gregg? What does he know about Solaris?!? (I keep the DTrace book within reach when I sit at the keyboard. This is fan mail. Many thanks, for your work has helped me become a better computer person.)
Brendan Gregg 的网站（和书）大概是最好的切入点（20 年前他在 Sun 的时候就参与了 DTrace 的研发和推广），而且他过去和现在都对推动 Linux 里的 eBPF 走得比当年的 DTrace 更远起到了关键作用：https://brendangregg.com/ebpf.html
Brendan Gregg's site (and book) is probably the best starting point (he was involved in DTrace work & rollout 20 years ago when at Sun) and was/is instrumental in pushing eBPF in Linux even further than DTrace ever went: https://brendangregg.com/ebpf.html
所以，背景信息是这样的。B. Gregg 在万恶的甲骨文收购之前是在 Sun 工作的。毫不夸张地说，关于 DTrace 的那本书[0]就是他写的。现在他在 Netflix（也就是说，据我所知，他在那个 Docker/Solaris 衍生品上没有任何既得利益[他的兴趣可能只是想从任何好使的工具里压榨出极佳的性能，而不是……
So, background info. B. Gregg was at Sun before the evil Oracle acquisition. He quite literally wrote the book[0] on DTrace. Now he's at Netflix (i.e., he has as far as I can tell no vested interest in either that Docker/Solaris derivative [his interest is probably just getting great performance out anything that works rather…
Brendan Gregg 写过很多文章，还写过几本关于 DTrace 的书，FreeBSD 中也收录了 DTrace。
Brendan Gregg has written many articles and a few books about DTrace which is included in FreeBSD.
……内核，而且 Linus 明确表示过，因为许可证不兼容，他绝不会合并采用 CDDL 许可证的代码。那些分发 ZFS 的 Linux 发行版都是把它做成单独的内核模块，而不是作为 Linux 内核的一部分。DTrace 改用 GPL 许可证太晚了（2018年），连 Brendan Gregg 本人都这么说过，因为他觉得 eBPF 功能更强大（而他可是 DTrace 领域的顶尖专家）。
…kernel, and Linus has stated that he will never merge CDDL licensed code due to license incompability. Those Linux distros that distribute ZFS do so as a separate module, not part of the Linux kernel. DTrace was GPL licensed too late (2018), something even Brendan Gregg stated as he finds eBPF more capable (and he is a leading expert on DTrace).