10 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
Hello,
I am running ubuntu 14.04 in a server with 32GB ram.
Due to receiving "high load" errors during ssh connection, I took a look at what's happening from command line. I detected that 20GB of total memory was allocated to a program.
Below you can see some initial part of installation... (4 Replies)
Discussion started by: baris35
4 Replies
2. Red Hat
So we have a RHEL 7.6 workstation with 128 gigs of ram. The OS sees all the ram and 80 cors (40 HT)
We have 1 guest with 8 CPUs and 32gigs of ram running RHEL 7.6 workstation as well. We are trying to create another guest with 64 CPUs and 80 gigs of ram. We setup the system using... (0 Replies)
Discussion started by: joeg1484
0 Replies
3. Solaris
Hi,
the /tmp size is less whereas the size allocated to swap is quite big. how to increase the size of /tmp -
#: swap -l
swapfile dev swaplo blocks free
/dev/md/dsk/d20 85,20 8 273096 273096
#: swap -s
total: 46875128k bytes allocated + 2347188k reserved =... (2 Replies)
Discussion started by: psb74
2 Replies
4. Programming
I want to find the size of the total memory allocated on the heap for the following statement:
int* a = new int;How can I use the sizeof operator for this?
I used:
printf("\t===> %d\n",sizeof(*a));
Is this statement correct?
I have asked the question because when I checked the memory of... (13 Replies)
Discussion started by: rupeshkp728
13 Replies
5. UNIX for Dummies Questions & Answers
Hello,
I need to find the total allocated disk space for the home directory.
How can i find that in unix?(in GB).
Thanks. (4 Replies)
Discussion started by: kailash19
4 Replies
6. Programming
In a 'C' program,when I am trying to allocate memory with the help of malloc () function, it is allocating the memory up to a certain limit for e.g. in my case, it is 670 MB (approx). malloc() returns NULL if I allocate more than this amount of memory.When I tried
to allocate memory in chunks of... (1 Reply)
Discussion started by: vipinsachan
1 Replies
7. Programming
Actually for a process to run it needs text, stack , heap and data segments. All these find a place in the physical memory.
Out of these 4 only heap does exist after the termination of the process that created it. I want to know the exact reason why this happens. Also why the other process need to... (20 Replies)
Discussion started by: karthiktceit
20 Replies
8. AIX
We just set up a system to use large pages. I want to know if there is a command to see how much of the memory is being used for large pages. For example if we have a system with 8GB of RAm assigned and it has been set to use 4GB for large pages is there a command to show that 4GB of the *GB is... (1 Reply)
Discussion started by: daveisme
1 Replies
9. Solaris
Guys,
How to find memory size on solaris zone? We have total 16 GB and have 3 zone, but not sure how to find memory size for each zone? Please help. (1 Reply)
Discussion started by: mokkan
1 Replies
10. Solaris
Hi,
How to find out what is the maximum memory allocated to TOMCAT server in SunOS 5.8?
The Tomcat server crashes down during peak times....
Regards (1 Reply)
Discussion started by: baanprog
1 Replies
Ns_Alloc(3aolserver) AOLserver Library Procedures Ns_Alloc(3aolserver)
__________________________________________________________________________________________________________________________________________________
NAME
ns_calloc, ns_free, ns_malloc, ns_realloc - Memory allocation functions
SYNOPSIS
#include "ns.h"
void *
ns_calloc(size_t num, size_t esize)
void
ns_free(void *ptr)
void *
ns_malloc(size_t size)
void *
ns_realloc(void *ptr, size_t size)
_________________________________________________________________
DESCRIPTION
The AOLserver memory storage allocation code was moved into Tcl core beginning with Tcl 8.4.0. Starting with AOLserver 3.5, these memory
allocation functions are wrappers that call Tcl_Alloc and Tcl_Free. Earlier versions of AOLserver used this fast memory storage allocator
internally, or the platform's memory allocator depending on how you configured it.
The actual amount of memory allocated or freed will be different from the requested amount. This is because the fast memory allocation
code pools memory into chunks and manages that memory internally. In addition, the Tcl distribution may be compiled to allocate even more
memory which is used internally for diagnostic reasons. Using ns_free to free memory created by routines other than ns_malloc, ns_realloc
and ns_calloc will almost certainly result in segmentation faults or undefined behavior.
The lowercase and mixed-case versions are identical; the lowercase versions are preferred.
ns_calloc(num, esize)
Allocates a block of memory that is num * esize large, zeros it, and returns a pointer to the beginning of the memory block or NULL
if the operation fails.
ns_free(ptr)
ns_free() frees the memory space pointed to by ptr. This pointer must have been created with a previous call to ns_malloc(), ns_cal-
loc() or ns_realloc(). If ptr is NULL, no operation is performed. ns_free() returns no value.
ns_malloc(size)
ns_malloc() allocates size bytes and returns a pointer to the allocated memory. The memory is not cleared. The value returned is a
pointer to the allocated memory or NULL if the request fails. The memory must be freed by ns_free.
ns_realloc(ptr, size)
ns_realloc changes the size of the memory block pointed to by ptr to size bytes. The contents will be unchanged to the minimum of
the old and new sizes. Newly allocated memory will be uninitialized. If ptr is NULL, the call is equivalent to ns_malloc(size); if
size is equal to zero, the call is equivalent to ns_free(ptr). Unless ptr is NULL, it must have been returned by an earlier call to
ns_malloc(), ns_calloc() or ns_realloc().
SEE ALSO
Tcl_Alloc(3), Tcl_Free(3)
KEYWORDS
memory, allocation
AOLserver 4.0 Ns_Alloc(3aolserver)