Dtrace does not work

mikiteleco

New Member


Messages: 2

Hi,
I want to get some specific I/O data from FreeBSD. IOStat command does not return what I want, so I think about using dtrace. The problem is that I am getting this error while executing dtrace command:
Code:
[2.3.1-RELEASE][admin@machine]/usr/share/dtrace: dtrace -s iotime.d
dtrace: failed to initialize dtrace: DTrace device not available on system
[2.3.1-RELEASE][admin@machine]/usr/share/dtrace: which dtrace
/usr/sbin/dtrace
[2.3.1-RELEASE][admin@machine]/usr/share/dtrace: dtrace -V
dtrace: Sun D 1.12.1

It seems it is loaded in kernel, but I don't know what should I do to make it works. My FreeBSD info:
Code:
[2.3.1-RELEASE][admin@machine]/usr/share/dtrace: uname -a
FreeBSD machine 10.3-RELEASE-p3 FreeBSD 10.3-RELEASE-p3 #2 1988fec(RELENG_2_3_1): Wed May 25 14:14:46 CDT 2016     root@ce23-amd64-builder:/builder/pfsense-231/tmp/obj/builder/pfsense-231/tmp/FreeBSD-src/sys/pfSense  amd64

There is a pfsense loaded in this system (if this information helps).

Thanks.
 

debguy

Well-Known Member

Reaction score: 25
Messages: 275

I can't help much, but I don't understand why SirDice gave the "not freeBSD questions" link

I do know dtrace is a port from Sun Microsystems Solaris (which was branched off BSD earlier). It's not fully supported "yet" (if ever) and questions for it would be a "ported application" questions.

as far as it not worker at all "not supported on system", i have no idea i think read the Wiki page for the dtrace port - i believe there is one
 
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Oko

Daemon

Reaction score: 799
Messages: 1,620

pFsense is not FreeBSD. It is an appliance which was in the past built on the top of FreeBSD. They also used to have their own forum.
 

SirDice

Administrator
Staff member
Administrator
Moderator

Reaction score: 13,907
Messages: 40,632

I can't help much, but I don't understand why @SirDice gave the "not freeBSD questions" link
pfSense is a FreeBSD derivative. Derivatives are not supported here.
 
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