Date: Tue, 15 Oct 2013 15:43:48 -0700 From: Brendan Gregg <brendan.gregg@joyent.com> To: Mark Johnston <markj@freebsd.org>, Robert Mustacchi <rm@joyent.com> Cc: dtrace@freebsd.org Subject: Re: Dtrace providers wanted list Message-ID: <CA%2BXzFFiuLCsYMa3_DyR6SS%2BvkoPpYa0%2Bg3LO_pSmH5jFzS_qiw@mail.gmail.com> In-Reply-To: <20131010042544.GB65451@raichu> References: <52546385.2050203@FreeBSD.org> <20131010042544.GB65451@raichu>
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On Wed, Oct 9, 2013 at 9:25 PM, Mark Johnston <markj@freebsd.org> wrote: > On Tue, Oct 08, 2013 at 02:56:53PM -0500, Pedro Giffuni wrote: > [...] > > > > This is closely related to pmc(3) but obviously our implementation is > > completely different from the Solaris one. > > > > > > Well, just though I should share the above links in the hope of > > motivating more DTrace provider porting. At this time our base Dtrace > > port is pretty good but we have the chicken and egg problem where > > developers don't know how useful DTrace really is because there is no > > provider for their code. > > I think it's also important to have more and better documentation of > existing providers. More providers are nice, but they're not as useful > when their existence is not widely known or it's not clear how they > might be used. > > I don't really like having links to an Oracle wiki page at least partly > because none of the FreeBSD ports of those providers are 100% compatible. > I've started writing man pages for the network providers; an example is > here: > > http://people.freebsd.org/~markj/dtrace/dtrace-ip.4.txt > > But I'm open to other forms of documentation as well. > Man pages would be handy. These would be in addition to the other online docs I use: dtrace -lvn, and vi /usr/lib/dtrace/*.d! Robert Mustacchi has been getting an updated version of the original DTrace guide on http://dtrace.org/guide, from https://github.com/rmustacc/illumos-docbooks/tree/master/raw/dtrace. It's currently the "illumos Dynamic Tracing Guide", although we have talked about how to support other OSes in the same place (not sure how). Brendan -- Brendan Gregg, Joyent http://dtrace.org/blogs/brendan
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