Profiling shared libraries

[Daniel O'Connor]

On 31 Mar 2014, at 0:37, Ryan Stone <rysto32 at gmail.com> wrote:

> On Sat, Mar 29, 2014 at 10:43 PM, Daniel O'Connor <doconnor at gsoft.com.au> wrote:
>> Hi,
>> I have a shared library which is loaded into a Tcl interpreter and also loads submodules and I would like to profile it. Unfortunately it seems gprof does not grok shared libraries. I did some googling and it look like Linux has sprof for this but I can't see a port for FreeBSD.
>> 
>> Does anyone have any other ideas?
>> I have looked at DTrace but it's a bit fiddly to get working with my systems in the field so I'd prefer a pure userland solution if possible.
>> 
>> Thanks
> 
> hwpmc can do it:
> 
> kldload hwpmc
> pmcstat -S unhalted-cycles -O /tmp/samples.out sleep 10
> pmcstat -R /tmp/samples.out -G /tmp/callgraph.txt

Great, thanks!

--
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
  -- Andrew Tanenbaum
GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C






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