9 More Discussions You Might Find Interesting
1. Solaris
Hi Experts,
Our servers running Solaris 10 with SAP Application. The memory utilization always >90%, but the process on SAP is too less even nothing.
Why memory utilization on solaris always looks high?
I have statement about memory on solaris, is this true:
Memory in solaris is used for... (4 Replies)
Discussion started by: edydsuranta
4 Replies
2. Solaris
Is it possible to restrict physical memory in solaris zone with zone.max-locked-memory just like we can do with rcapd ? I do not want to used rcapd (1 Reply)
Discussion started by: fugitive
1 Replies
3. Programming
Hi,
I'm trying to learn how to manage memory when I have to deal with lots of data.
Basically I'm indexing a huge file (5GB, but it can be bigger), by creating tables that
holds offset <-> startOfSomeData information. Currently I'm mapping the whole file at
once (yep!) but of course the... (1 Reply)
Discussion started by: emitrax
1 Replies
4. Solaris
Hi,
Im working on Solaris 9 on SPARC-32 bit running on an Ultra-80, and I have to find out the following:-
1. Total Physical Memory in the system(total RAM).
2. Available Physical Memory(i.e. RAM Usage)
3. Total (Logical) Memory in the system
4. Available (Logical) Memory.
I know... (4 Replies)
Discussion started by: 0ktalmagik
4 Replies
5. AIX
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)
Discussion started by: big123456
5 Replies
6. HP-UX
Refer from title:
How can i get memory used or anything that can show memory from sar file
example on solaris:-
we can use sar with option to show memory used at time that sar crontab run.
on HP-UX, it not has option to see memory used. But i think it may be have some parameter or some... (1 Reply)
Discussion started by: panithat
1 Replies
7. Programming
Just a simple question (which may seem silly so bear with me) that arose in my mind the other day. Do ASCII characters by themselves (e.g. /n, 0, a) have an actual memory address ?
My question arises, because Im aware that each time I create and initalise a pointer like this for example
int... (7 Replies)
Discussion started by: JamesGoh
7 Replies
8. Programming
you have three variables of type char, int and float in continous memory locations. How do you print the contents of each of these.???
Thanks in advance. (0 Replies)
Discussion started by: areef4u
0 Replies
9. Programming
Hi, I try to marshal a unsigned int and a char * into a buffer, and then unmarshal them later to get them out. I need to put the char * in the front and unsigned int at the end of the buffer. However, my system always give me "BUS ERROR". I am using Sun Sparcs Sloris 2.10.
My code to marshal... (6 Replies)
Discussion started by: nj302
6 Replies
MEM(4) Kernel Interfaces Manual MEM(4)
NAME
mem, kmem - main memory
SYNOPSIS
major device number(s):
raw: 1
minor device encoding:
mem: 0; kmem: 1; null: 2
DESCRIPTION
Mem is a special file that is an image of the main memory of the computer. It may be used, for example, to examine (and even to patch) the
system.
Byte addresses in mem are interpreted as physical memory addresses. References to non-existent locations cause errors to be returned.
The file kmem is the same as mem except that kernel virtual memory rather than physical memory is accessed. Only kernel virtual addresses
that are mapped to memory are allowed. Examining and patching device registers is likely to lead to unexpected results when read-only or
write-only bits are present.
On PDP-11s, the I/O page begins at location 0160000 of kmem and the per-process data segment for the current process begins at 0140000 and
is USIZE clicks (64 bytes each) long.
FILES
/dev/mem
/dev/kmem
/dev/MAKEDEV script to create special files
/dev/MAKEDEV.local script to localize special files
BUGS
On PDP-11's, specifying an odd kernel or user address, or an odd transfer count is [generally] slower than using all even parameters.
On machines with ENABLE/34(tm) memory mapping boards the I/O page can be accessed only through kmem.
3rd Berkeley Distribution January 28, 1988 MEM(4)
