On 12 Oct 2010, at 23:40, István wrote: > Hey, > > > I am not 100% sure this is the right list to approach with this problem but > let's try this one. > > So I am trying to use dtrace on the previously mentioned system, I followed > the usual kernel rebuild process using the following wiki: > > http://wiki.freebsd.org/DTrace > > Dtrace works fine and I am able to trace the kernel.[1] > > > My problem is: I can't trace any user land application including PostgreSQL > and Ruby. > > I added the following lines to the /etc/make.conf as it is written in the > wiki: > > STRIP= > CFLAGS+=-fno-omit-frame-pointer > > I compiled both of the softwares and trying to trace them but there are no > bindings in the dtrace -l ouput > > > # dtrace -l | grep -i ruby > > i might have overlooked something important but not sure what. > > Any help is appreciated. Pls cc my email since i am not on this list. > > > Thank you in advance. > > I. > > 1. > > [r...@freebsd9 ~]# uname -a > FreeBSD freebsd9 9.0-CURRENT FreeBSD 9.0-CURRENT #0: Fri Oct 8 21:09:20 UTC > 2010 r...@freebsd9:/usr/obj/usr/src/sys/DTRACE amd64 > [r...@freebsd9 ~]# kldstat > Id Refs Address Size Name > 1 26 0xffffffff80100000 f49bb0 kernel > 2 1 0xffffffff81212000 ad8 dtraceall.ko > 3 1 0xffffffff81213000 4a59 profile.ko > 4 11 0xffffffff81218000 3e2f opensolaris.ko > 5 3 0xffffffff8121c000 3db0 cyclic.ko > 6 9 0xffffffff81220000 13af4b dtrace.ko > 7 1 0xffffffff8135b000 fce0 systrace.ko > 8 1 0xffffffff8136b000 4128 sdt.ko > 9 1 0xffffffff81370000 44b8 lockstat.ko > 10 1 0xffffffff81375000 b94e fasttrap.ko > 11 1 0xffffffff81381000 61ab fbt.ko > 12 1 0xffffffff81388000 4a67 dtnfsclient.ko > 13 1 0xffffffff8138d000 4118 dtmalloc.ko > [r...@freebsd9 ~]# > > [r...@freebsd9 ~]# cat d.d > vfs:namecache:enter:done > { > > @distribution = quantize(strlen((string)arg1)); > } > [r...@freebsd9 ~]# dtrace -s d.d > dtrace: script 'd.d' matched 1 probe > ^C > > > value ------------- Distribution ------------- count > 2 | 0 > 4 |@@@@@@@ 1 > 8 |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ 5 > 16 | 0 > > >
The Ruby port doesn't have DTrace support, but the PostgreSQL port has a DTrace option (only the latest postgresql port). Regards, -- Rui Paulo _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
