Displaying 20 results from an estimated 400 matches similar to: "Variable mpid - what is it?"
2008 Nov 12
2
hotuser in multicore system
Incase of multi-core systems where multiple threads maybe scheduled
for execution, does the below dscript (from hotuser in DTraceToolkit)
collect information for multiple libraries/functions that would be
getting executed at a given point of time. I have been able to test it
to check if it does or doesn''t. I assume it does.
This was a query I have about profiling in general.
#pragma D
2008 Jan 18
33
LatencyTop
I see Intel has released a new tool. Oh, it requires some patches to
the kernel to record
latency times. Good thing people don''t mind patching their kernels, eh?
So who can write the equivalent latencytop.d the fastest? ;-)
http://www.latencytop.org/
--
cburgess at qnx.com
2007 Jul 25
2
proc:::exit not firing
I have a funny issue whereby when a application exits the proc:::exit
probe doesn''t seem to be firing.
A customer has written a dtrace script that outputs some info whenever
proc:::exit fires but on occasion (random, no pattern in behaviour)
dtrace exits without outputting the data.
They are running dtrace via ''dtrace -s exit_trace.d -p <pid>''
Can anyone think
2006 Oct 24
15
How to emit associative array after ^C
Boy am I a dummy. I want to simply dump out unfreed allocations when I terminate the script. What''s the secret sauce?
#!/usr/sbin/dtrace -s
pid$1::MyAlloc:return
{
bufs[arg1] = walltimestamp;
}
pid$1::MyFree:entry
/bufs[arg0]/
{
bufs[arg0] = 0;
}
This message posted from opensolaris.org
2009 Apr 22
6
PID provider can not create memcpy:return probe for 64bit process
I have found that pid provider can not create memcpy:return probe for
64bit process on snv_110. For example, the pid is 10603, I will have
following output for dtrace command:
#dtrace -n pid10603:libc.so.1:memcpy:return
dtrace: invalid probe specifier pid10603:libc.so.1:memcpy:return:
probe description pid10603:libc.so.1:memcpy:return does not match any probes
This just
2009 Sep 18
7
Why is plockstat provider only present for 1 process
Hi,
I would like to know why dtrace -l |grep plockstat show plockstat28099
lines.
Process with pid 28099 is a java process.
Why can I not examine other processes with the plockstat provider?
Is it a java startup option?
Regards Hans
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
2012 Dec 05
3
FreeBSDD Upgrade Failing
Hi FreeBSD Community,
i got warning that 9.1RC3 is approaching end of its life, i should upgrade
with in two week. when i started the upgrade, i get the following error.
any solution anyone knows?
[root at rock]# freebsd-update -r 9.1-RELEASE upgrade
Looking up update.FreeBSD.org mirrors... 3 mirrors found.
Fetching metadata signature for 9.1-RC3 from update5.FreeBSD.org... done.
Fetching
2012 Dec 05
2
Update Failing FreeBSD 9.1-Release
anyone knows what to do?
[root at rock]# freebsd-update -r 9.1-RELEASE upgrade
Looking up update.FreeBSD.org mirrors... 3 mirrors found.
Fetching metadata signature for 9.1-RC3 from update5.FreeBSD.org... done.
Fetching metadata index... done.
Fetching 1 metadata patches. done.
Applying metadata patches... done.
Inspecting system... done.
The following components of FreeBSD seem to be installed:
2006 Jan 25
6
failed to resolve SS_TCP_FAST_ACCEPT
Folks,
I came across an IPv6 snv_31 network driver problem during
testing. I can "ping" an IPv6 address, but when I try and log
on to the IPv6 address I get an RPC failure. Not knowing much about dtrace,
I thought I would give some of the networking dtrace scripts
a try that I found here:
http://www.opensolaris.org/os/community/dtrace/dtracetoolkit/
(tcptop or any other script in the
2005 Nov 18
6
expected system load from DTrace scripts/probes
Does anyone out there have any thoughts on the type of load common
DTrace scripts would cause on a system if run 24x7? I know "common
DTrace scripts" and their underlining probe calls a vague statement. So
for the lack of a common and establish set of scripts in the OS, I''ll
use the most popular right for my question...the DTraceToolkit from
Brendan Gregg. Which by the
2016 Feb 15
3
Issues in Example code
Hi
My name is Shiv and I am student at IIIT-D ( http://www.iiitd.edu.in/ )
pursuing my undergrad education in Computer Science. I am currently in my
final year.
I am following the Xapian Gsoc guide (
https://trac.xapian.org/wiki/GSoC%20Guide#Mentoring). I have successfully
checked out and built the code. I am trying out the python codes given at (
2008 Feb 12
1
measuring sleep time in synchronization objects
Hi,
I am fairly new to DTrace, and wanted to ask something regarding
synchronization objects.
I have a multithreaded C++ program in which I use semaphores (POSIX version)
for synchronization. I was interested in using DTrace to figure out the
total time for which each thread in my application sleeps, blocked on a
semaphore, i.e., as a result of sem_wait() call. In order to measure this, I
2012 May 21
3
Bind Died CentOS 6.2 64Bit
Dear all,
bind cannot load zone files, i see the following in the log for all domains.
i have tried with 777 to all zone files but does not make difference. main
directories are also owned by named:named
May 21 15:45:23 nsfo1 named-sdb[2482]: zone dot.com.gh/IN: loading from
master file master/db.gh.com.dot failed: permission denied
help would be very much appreciated
Thanks
2007 Nov 27
7
Solaris Dynamic Tracing Guide gets Wikified!
Tracers,
Good news! The Solaris Dynamic Tracing Guide has entered
the participation age at last and has been converted into
wiki format. The new and shiny guide can be found at:
http://wikis.sun.com/display/DTrace/Documentation
The guide has fallen behind with developments in DTrace
since it was first released and needs some revising and
some bug fixing as well. However, now that it''s
2008 Jul 14
15
CPC provider - input welcome
Tracing Fans,
I know it''s been a long time in coming but the CPU Performance
Counter (CPC) provider is almost here! The code is currently in
for review and a proposed architecture document is attached here
for review.
Any and all feedback/questions on the proposed implementation
is welcome.
Thanks.
Jon.
-------------- next part --------------
An embedded and charset-unspecified text
2012 Sep 25
1
Sa-Update Error - CentOS 6.3
Dear CentOS community Greetings,
i was waiting for few days before sending this email message, i thought
some server may have problem. That might causing the issue, will resolve
its own. but since a week now i am getting this message. because i have
not come across this error before, is anyone have across what is it? why
my server is unable to download the file
ERROR:
http: GET
2005 Jun 11
3
swapinfo.d
G''Day Folks,
Check out this DTrace script,
# ./swapinfo.d
RAM _______Total 511 Mb
RAM Unusable 8 Mb
RAM Kernel 96 Mb
RAM Locked 0 Mb
RAM Used 318 Mb
RAM Avail 88 Mb
Disk _______Total 1023 Mb
Disk Used 9 Mb
Disk Avail 1014 Mb
Swap _______Total 1367 Mb
Swap Used 327
2005 Nov 15
6
Oracle 9 process on Sol 10 container, doing a pollsys, using high CPU
We''re running a Solaris 10 container, with an Oracle 9.2.0.4 database - every 5-10 min, an Oracle process shoots up (using 20% + CPU) and then goes down in CPU %, doing a [i]pollsys [/i](see it via dtruss). I tried using some of the trace scripts in the Dtracetoolkit to see what the process is doing, but without any luck - also tried with the following, but dtrace process goes up to 30%
2008 Nov 23
4
Visualizing a call graph
Hello all,
I have been taking basic steps with DTrace and subscribed today to
this list. I have written a simple DTrace script to trace all the
function entry/exit from a given function:
#pragma D option flowindent
pid$1::*mysql_select*:entry
{
self -> start = vtimestamp ;
}
pid$1::*mysql_select*:return
/self -> start/
{
self -> start =0 ;
}
pid$1:::entry,
pid$1:::return
2008 May 20
6
Dtrace queries - predicates & func arg tracing
[1] Predicates in one-liners
I would like to list the probe modules in my executable and then
dynamically create a dscript to trace execution of those modules alone
(by excluding the 3rd party and system libraries). I tried the below
script without success. The conditional given in the predicate is not
taking effect. Why is this so ?
$ dtrace -ln ''pid$target:::