Hi There,
I have upgraded the DELL poweredge 2600 server memory from 2GB to 4GB. However, the memory only showed at 2GB of utilization. How to make sure that the server is full utilize of 4GB of memory. Is there the Virtual memory need to be reconfigure as this server is run on windows 2000 and... (2 Replies)
Hi All
Any idea? why am I having this memory issue?
perforce@ixca-pforce-bak:/home/p4-demo-root$ diff checkpoint_offline ../p4-demo-root2/checkpoint.1150
diff: memory exhausted
Thanks a lot
C Saha (0 Replies)
Hi friends..
Help to solve this issue...
Is there any parameter setting to control or limit the size of the shared memory a process can attach for the below specified environment?
The man pages says it can attach upto segments of size 2GB. But when our process (which also connects to... (0 Replies)
Hi all,
I was compiling my glibc 2.6.1 source files on a new kernel 2.66.22.6 and it seems that i am running into issues with the Virtual Memory. It displays the error message:
virtual memory exhausted: Cannot allocate memory
I saw an article on how to adjust the parameters but i can't... (5 Replies)
One of our project has exceeded its assigned max-memory-locked by 3 times .. The said project is using around 9 gigs as described by rss parameter in prstat -J .. and the max-project-memory parameter has been defined as 3gigs .. is it normal or we are monitoring the project memory usage in wrong... (2 Replies)
I have parallels container running on Suse. From top command, I am not able to see, what is eating up so big amount of memory.
top - 07:44:24 up 172 days, 18:52, 1 user, load average: 0.01, 0.02, 0.00
Tasks: 44 total, 1 running, 43 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.0%us, ... (1 Reply)
I have a server with 300Gb allocated to it. Some times I observed in topas
Comp% 73 and Non comp 35% and client is also 35% and my paging is showing 92%. If my physical memory utilized only 70% then why paging is so high.
And what is relation between Comp, noncomp and client? If the memory... (1 Reply)
I could not find what is consuming the memory, generated DSET reports and NO hardware wise memory issue. 64 GB RAM on a server yet all I could see is a very limited memory available. I am not sure if I am reading this correct or not. I have used free -t -m and cat /proc/meminfo (results below)... (3 Replies)
Hi,
In our production box i can see the Swap space using the below command
free
total used free shared buffers cached
Mem: 65963232 41041084 24922148 0 877160 35936292
-/+ buffers/cache: 4227632 61735600
Swap: 4192880 ... (6 Replies)
Friends,
I have 8CPU/24gb RAM in my Linux servers around 30+. All the servers are running with Java based application with NFS mounted.
The problem what I have is, When I reboot servers the server memory looks decent. But after some time the "cached" memory increasing and "free" memory... (5 Replies)
Discussion started by: baluchen
5 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)