Re: [RFC] ktap: Another dynamic tracing tool for Linux
From: Frank Ch. Eigler
Date: Mon Dec 31 2012 - 13:58:34 EST
bookjovi wrote:
> [...] This mail is RFC for discuss on a new dynamic tracing tool, I
> name it ktap. (only experimental project now)
Welcome to the problem domain!
> [...]
> what ktap differentiates with Systemtap is:
> [...]
> 2). ktap have good portability, because it compile source file to
> bytecode, like python and Java.
(From this PoV, systemtap is just as portable as the kernel, as it
generates the same sort of C code the kernel is built from.)
> [...]
> 5). ktap will be open source completely, with GPL license, it might be
> merge into mainline in someday, that's very convince for tracing user.
(systemtap has always been GPLv2, ever since its beginning in 2005.)
> [...]
> ktap use lua language syntax and bytecode as initial implementation,
Interesting approach. I recall we considered it way back when, but
rejected it for a couple of reasons, including the at-the-time
perceived unwelcomeness of a serious bytecode interpreter within the
kernel.
> it could support kprobe, uprobe, userspace probe, etc.
Great.
> I wish you can give me some technical architecture pre-review for
> ktap, before ktap release 1.0.
> Any comments is welcome, thanks very much.
Have you made any source code available yet?
- FChE
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