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Date: Wed, 06 Aug 2008 11:08:10 -0400 From: fche@...hat.com (Frank Ch. Eigler) To: Andrew Morton <akpm@...ux-foundation.org> Cc: prasad@...ux.vnet.ibm.com, linux-kernel@...r.kernel.org, dwilder@...ibm.com, hch@...radead.org, Steven Rostedt <rostedt@...dmis.org>, mathieu.desnoyers@...ymtl.ca Subject: Re: [Patch 0/2] Renaming 'trace' to 'relay' and enhancements to 'relay' Andrew Morton <akpm@...ux-foundation.org> writes: > [...] >> Please find the patches that enhance the 'trace' infrastructure >> (available in the -mm tree) and which introduce two new APIs >> relay_dump() and relay_printk(). >> [...] > I'm a bit perplexed by these trace patches > (http://userweb.kernel.org/~akpm/mmotm/broken-out/trace-code [...] > Is it useful? Will it be useful? [...] I haven't heard much noise > about it and I'm struggling to justify merging it. Right. > Also, it's starting to look somewhat similar to ftrace, which also > provides sort of high-bandwidth per-cpu channels into userspace for > tracing purposes. Perhaps ftrace ought to use this facility for its debugfs-facing bulk data interface rather than an internal one that cannot be used by anyone else. Perhaps lttng could use it. Systemtap could. I believe a grand unification at this level was the idea. - FChE -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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