Virtual Size actually is swapped memory + non swapped memory (physical mem amount for executable code + for data)..
Additiniol your program can probability use libraries..for this kernel present shared librarys..And your program wants memory from SHR memory space..
So according to me you maybe can use pmap tool for threshold memory limit
Hi,
First of all I appreciate this group very much for its informative discussions and posts.
Here is my question.
I have one process whose virtual memory size increases linearly from 6MB to 12MB in 20 minutes. Does that mean my process has memory leaks?
In what cases does the... (4 Replies)
Hello all
im using the ps -ef "args vsz" | some.exe
but the result is in kb , is there some kind of way or flag ( didnt found in the ps man )
to convert me this data to GB or MG in human readable format ?
Thanks (1 Reply)
Hi,
I have migrated some processing from true64 --> AIX 5.3. my problem is to process large files in memory by diff or awk program. I need to load app. 1.3 GB of data into memory but it fails that there is not enough memory.
I need following:
diff file1 file2
orig. aix diff err... (2 Replies)
Hi,
Would any one be so kind to explain me :
are ulimits defined for each user seperately ? When ?
Specialy what is the impact of :
max locked memory
and
virtual memory
on performance of applications for a user.
Many thanks.
PS :
this is what I can see in MAN :
ulimit ]
... (5 Replies)
Hi,
I am looking to work on unix systems which include (hp-ux, ibm aix, solaris and linux). I want to get the total virtual address space of a process, the used virtual memory i am able to get without any problem. I have tried using getrlimit and getrlimit64, but that gives only ... (4 Replies)
Hi All,
Does anyone know what the best commands in the UNIX command line are for obtaining this info:
current CPU usage
memory usage
virtual memory usage
preferably with date and time parameters too?
thanks
ocelot (4 Replies)
I was running a program and it stopped and showed "Out of Memory!". at that time, the RAM used by this process is around 4G and the free memory size of the machine is around 30G. Does anybody know what maybe the reason? this program is written with Perl. the OS of the machine is Solaris U8. And I... (1 Reply)
Hi all,
Is there any command which shows the virtual memory usage of a particular process in HP-UX machine.
I have tried with ps, top but could not get what I want.
Kindly provide me a solution.
Thanks in Advance
ARD (4 Replies)
Hello all
i have simple server running on linux redhat 6.1
it is build with c++
in the server i have huge std vector that holds pointers to cache objects
those cache objects holds allot of data from the DB
any way ...
in some point in time there is simple API that suppose to clean the... (2 Replies)
Hi All,
I have a java process which is showing high virtual memory utilization in client server. But the same process is showing comparitively lesser virtual memory consumption. I understand that virtual memory shown is not of much importance for the general user in normal condition, my client... (2 Replies)
Discussion started by: mritusmoi
2 Replies
LEARN ABOUT DEBIAN
vm_fault_prefault
VM_FAULT_PREFAULT(9) BSD Kernel Developer's Manual VM_FAULT_PREFAULT(9)NAME
vm_fault_prefault -- cluster page faults into a process's address space
SYNOPSIS
#include <sys/param.h>
#include <vm/vm.h>
#include <vm/pmap.h>
void
vm_fault_prefault(pmap_t pmap, vm_offset_t addra, vm_map_entry_t entry);
DESCRIPTION
The vm_fault_prefault() function provides a means of clustering pagefaults into a process's address space. It operates upon the physical map
pmap. The entry argument specifies the entry to be prefaulted; the addra argument specifies the beginning of the mapping in the process's
virtual address space.
It is typically called by vm_fault() after the first page fault. It benefits the execve(2) system call by eliminating repetitive calls to
vm_fault(), which would otherwise be made to bring the process's executable pages into physical memory.
IMPLEMENTATION NOTES
This is a machine-independent function which calls the machine-dependent pmap_is_prefaultable(9) helper function to determine if a page may
be prefaulted into physical memory.
SEE ALSO execve(2), pmap_is_prefaultable(9)AUTHORS
This manual page was written by Bruce M Simpson <bms@spc.org>.
BSD July 21, 2003 BSD