dtrace discuss - Dec 2011 - dtrace-discuss Digest, Vol 80, Issue 6

Have you considered the mdb dcmd ::pfiles?

mfe at inker:~/Code/dtrace/examples$ *pfexec mdb -k*

Loading modules: [ unix genunix specfs dtrace mac cpu.generic uppc pcplusmp
scsi_vhci zfs ip hook neti sockfs arp usba uhci fctl s1394 stmf stmf_sbd md
lofs random idm sd crypto fcp cpc fcip smbsrv nfs ufs logindmux ptm nsmb
sppp nsctl sdbc rdc sv ii ipc ]
> *::ps ! grep clock-applet*
R   1744      1   1705   1705    101 0x4a004000 ffffff01e5183018
clock-applet
> *ffffff01e5183018::pfiles*
FD   TYPE            VNODE INFO
   0  CHR ffffff01d1180440 /devices/pseudo/mm at 0:null
   1  CHR ffffff01d1180440 /devices/pseudo/mm at 0:null
   2  CHR ffffff01d1180440 /devices/pseudo/mm at 0:null
   3 DOOR ffffff01d6751400 /var/run/name_service_door [door to
''nscd'' (procffffff01d3483000)]
...
  22 PORT ffffff01e5571b80 [event port (port=ffffff01d12fb240)]
  23 SOCK ffffff01e55ae800 socket: AF_INET 192.168.15.108 40101 remote:
AF_INET
128.241.90.58 80

I don''t know whether this poses no risk for a heavily involved process.
It
is however simpler than using DTrace, which is not well-suited for walking
a collection of data.

Regards,

Michael

On Fri, Dec 23, 2011 at 4:00 AM, <dtrace-discuss-request at
opensolaris.org>wrote:
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>   1. dtrace script (Anne Adema)
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> ----------------------------------------------------------------------
>
> Message: 1
> Date: Fri, 23 Dec 2011 11:03:17 +0100
> From: Anne Adema <aron.adema at gmail.com>
> To: dtrace-discuss at opensolaris.org
> Subject: [dtrace-discuss] dtrace script
> Message-ID: <4EF451E5.5010103 at gmail.com>
> Content-Type: text/plain; charset="iso-8859-1";
Format="flowed"
>
> Hi
>
> Does anyone has a dtrace script which determine in a life system the
> amount of open files per process id in a Non Global Zone.
>
> It is not possible with pfiles because of underlying problem
>
> Here is the direct quote from the manpages:
>
> WARNINGS
> The following proc tools stop their target processes while
> inspecting them and reporting the results: pfiles, pldd, and
> pstack.
>
> A process can do nothing while it is stopped. Stopping a
> heavily used process in a production environment, even for a
> short amount of time, can cause severe bottlenecks and even
> hangs of these processes, causing them to be unavailable to
> users. Some databases could also terminate abnormally. Thus,
> for example, a database server under heavy load could hang
> when one of the database processes is traced using the above
> mentioned proc tools. Because of this, stopping a UNIX pro-
> cess in a production environment should be avoided.
>
> SunOS 5.10
>
> GZ> lsof -z <zonename> -p pid
>
> Does not give the right output.
>
> ls /proc/<pid>/fd | wc -l gives not the open files per process id.
>
> I''m not familiar with dtrace programming. So maybe anyone create a
> dtrace script which
>
> show in a life system (without the change of interruption of process) me in
> life contiunue the amount of open files per process id in a non global
> zone.
>
> Thanks Anne Adema
>
> you can mail me aron.adema at gmail.com
>
> --
> With regards,
>
>
> Ir. A. Adema BSc
> e-mail: aron.adema at gmail.com  or
>         anne at famadema.com
> GSM:    +31 6 55687405
>
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-- 
Michael Ernest
Inkling Research, Inc.
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