Hello Gurus,
I am using AIX 5 and on running topas command. I can see the computational memory is 93.3% with Swap Paging memory at 2.2%. Could you please advise if there is any impact by the growth of computational memory?
Below is the stat:
Thank you
Last edited by Yogesh Sawant; 02-01-2011 at 09:29 AM..
Reason: added code tags
hi,
how can i diplay:
- the ammount RAM used /free
- ammount of ram used from a pid or prozess
we have the problem, that malloc is returing a NULL pointer errno = 12 ( not enough space).
but i think there is still ram free.
nmon : shows all memory used ?
Memory Use Physical Virtual... (7 Replies)
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I have been trying to install IMSL Computational Tool Kit on a server.
It is a Lunix Redhat V.4 with Intel pentium d processor and Intel fortran compiler 8.1 and the type of command shell we run is bash.
I dont know if the problem is with the Installation or the Lunix system.
I have... (1 Reply)
This is a general question about the practical use of computational complexity in security. Wikipedia has a good article about the theoretical background of computational complexity. In the course of conversation with colleagues, a topic that is brought up occassionally is the security of any... (2 Replies)
Hi,
I have two files say file 1 file 2
File1
1
2
4
5
File 2
asdf
adf
How to get the ouput something like
asdf1
adf1
asdf2
adf2
asdf4
adf4
asdf5 (5 Replies)
Hi,
I'm planning to write a script to monitor the memory utilization and so decided to use topas. i'm not familiar with this command
Could anyone help me with an idea on how to display the Memory section alone in the topas... :)
It will be very helpful if you could specify the command... (2 Replies)
Hi Friends,
How to capture the value of %Comp and %Noncomp values from AIX using topas command. I tried lot, but i cannot capture the value. (4 Replies)
Dear,
How to calculate %computational memory and %non computational memory from AIX server.
What command used to find out %computational memory and % non computational memory except topas.
Regards
Nowshath (1 Reply)
Discussion started by: Nowshath
1 Replies
LEARN ABOUT MINIX
chmem
CHMEM(1) General Commands Manual CHMEM(1)NAME
chmem - change memory allocation
SYNOPSIS
chmem [+] [-] [=] amount file
EXAMPLES
chmem =50000 a.out # Give a.out 50K of stack space
chmem -4000 a.out # Reduce the stack space by 4000 bytes
chmem +1000 file1 # Increase each stack by 1000 bytes
DESCRIPTION
When a program is loaded into memory, it is allocated enough memory for the text and data+bss segments, plus an area for the stack. Data
segment growth using malloc , brk , or sbrk eats up stack space from the low end. The amount of stack space to allocate is derived from a
field in the executable program's file header. If the combined stack and data segment growth exceeds the stack space allocated, the pro-
gram will be terminated.
It is therefore important to set the amount of stack space carefully. If too little is provided, the program may crash. If too much is
provided, memory will be wasted, and fewer programs will be able to fit in memory and run simultaneously. MINIX does not swap, so that
when memory is full, subsequent attempts to fork will fail. The compiler sets the stack space to the largest possible value (for the Intel
CPUs, 64K - text - data). For many programs, this value is far too large. Nonrecursive programs that do not call brk , sbrk , or malloc ,
and do not have any local arrays usually do not need more than 8K of stack space.
The chmem command changes the value of the header field that determines the stack allocation, and thus indirectly the total memory required
to run the program. The = option sets the stack size to a specific value; the + and - options increment and decrement the current value by
the indicated amount. The old and new stack sizes are printed.
SEE ALSO install(1), brk(2).
CHMEM(1)