I have a question about the accuracy of prstat.
I did a 'prstat -t' and it shows 99% of my memory is occupied by oracle.
NPROC USERNAME SIZE RSS MEMORY TIME CPU
194 oracle 343G 340G 99% 86:17.24 56%
However, 'top' shows I still have 7762meg of memory free.
Memory: 16G real, 7762M... (4 Replies)
Hi all, I'd like to capture the output from the 'top' command to monitor my CPU and Mem utilisation.Currently my command isecho date
`top -b -n1 | grep -e Cpu -e Mem` I get the output in 3 separate lines.Tue Feb 24 15:00:03
Cpu(s): 3.4% us, 8.5% sy .. ..
Mem: 1011480k total, 226928k used, ....... (4 Replies)
Hi Export,
i execute 'top' command to show the free memory in Solaris host, but the read is much lower than the RSS value shown in prstat command. Which one can reflect the real status and it is possible the difference caused by any patch of OS?
Top command (only 883 memory is free)... (3 Replies)
I have written shell script to send file as an attachemt of email and output of "top -o res" command as email body. it works fine if i execute manually from prompt but it does not send "top -o res" command output in email body when it is executed via crontab. Any suggestions. My script is below:... (5 Replies)
Hello;
Am trying to generate runaway proc report using ssh thusly:
===================
ssh -t -t $BOX 'TERMINAL="vt100" top -d1 -h -n 10' >> $FILE
.
.
cat $FILE | mail -s "Latest Top `date`" $MAIL_TO
====================
But the output to e-mail comes out rather garbled ..
Any ideas... (1 Reply)
hi,
I have tried the below command in RHEL5:
top|mailx -s "test" "abc@cvf.com"
But in the mail the content was not in proper format.
Is there any way to preserve the format ?
Thanks (2 Replies)
Hi All,
In the output of TOP command in my unix system, i monitored that some process has utilization more than 100% even some process has 4000% utilisation.
Please help me understand how it is possible to show more than 100% utilization.
Please see the screenshot below:... (2 Replies)
Hi All,
I want generate HP-UX overall system performance report.
I tried executing top command and write that out put to file. but am not able to view the report in proper format.
I can see report like below in file but i can see properly in terminal.
Please suggest how can i get... (2 Replies)
Hello,
I am a beginner, I have currently Solaris 11 on a vmware machine. Whenever I type a command like 'ls' the screen scrolls to the end of the screen. I am unable to see the entire list of directories and files. I have tried ls |page command, but looking out for a better option. (3 Replies)
Discussion started by: farheenprasad
3 Replies
LEARN ABOUT DEBIAN
devel::refcount
Devel::Refcount(3pm) User Contributed Perl Documentation Devel::Refcount(3pm)NAME
"Devel::Refcount" - obtain the REFCNT value of a referent
SYNOPSIS
use Devel::Refcount qw( refcount );
my $anon = [];
print "Anon ARRAY $anon has " . refcount($anon) . " reference
";
my $otherref = $anon;
print "Anon ARRAY $anon now has " . refcount($anon) . " references
";
DESCRIPTION
This module provides a single function which obtains the reference count of the object being pointed to by the passed reference value.
FUNCTIONS
$count = refcount($ref)
Returns the reference count of the object being pointed to by $ref.
COMPARISON WITH SvREFCNT
This function differs from "Devel::Peek::SvREFCNT" in that SvREFCNT() gives the reference count of the SV object itself that it is passed,
whereas refcount() gives the count of the object being pointed to. This allows it to give the count of any referent (i.e. ARRAY, HASH,
CODE, GLOB and Regexp types) as well.
Consider the following example program:
use Devel::Peek qw( SvREFCNT );
use Devel::Refcount qw( refcount );
sub printcount
{
my $name = shift;
printf "%30s has SvREFCNT=%d, refcount=%d
",
$name, SvREFCNT($_[0]), refcount($_[0]);
}
my $var = [];
printcount 'Initially, $var', $var;
my $othervar = $var;
printcount 'Before CODE ref, $var', $var;
printcount '$othervar', $othervar;
my $code = sub { undef $var };
printcount 'After CODE ref, $var', $var;
printcount '$othervar', $othervar;
This produces the output
Initially, $var has SvREFCNT=1, refcount=1
Before CODE ref, $var has SvREFCNT=1, refcount=2
$othervar has SvREFCNT=1, refcount=2
After CODE ref, $var has SvREFCNT=2, refcount=2
$othervar has SvREFCNT=1, refcount=2
Here, we see that SvREFCNT() counts the number of references to the SV object passed in as the scalar value - the $var or $othervar
respectively, whereas refcount() counts the number of reference values that point to the referent object - the anonymous ARRAY in this
case.
Before the CODE reference is constructed, both $var and $othervar have SvREFCNT() of 1, as they exist only in the current lexical pad. The
anonymous ARRAY has a refcount() of 2, because both $var and $othervar store a reference to it.
After the CODE reference is constructed, the $var variable now has an SvREFCNT() of 2, because it also appears in the lexical pad for the
new anonymous CODE block.
PURE-PERL FALLBACK
An XS implementation of this function is provided, and is used by default. If the XS library cannot be loaded, a fallback implementation in
pure perl using the "B" module is used instead. This will behave identically, but is much slower.
Rate pp xs
pp 225985/s -- -66%
xs 669570/s 196% --
SEE ALSO
o Test::Refcount - assert reference counts on objects
AUTHOR
Paul Evans <leonerd@leonerd.org.uk>
perl v5.14.2 2011-11-15 Devel::Refcount(3pm)