03-10-2014
Show the parameters of the top command you used as well as the column headings for it.
FYI: I looks like you have approx 65 GB of ram and 4GB of paging space. Most swap specifications I have ever seen depend upon the total amount of memory in the system...so it's never "always half" or "always double".
10 More Discussions You Might Find Interesting
1. Filesystems, Disks and Memory
I need to put a program together to determine the total, available memory and total and available swap on unix machines. I have been searching for weeks and I seem to run into dead ends. Every unix platform I look at has a different way to determine memory info.
Any sugggestions or new... (4 Replies)
Discussion started by: ghe1
4 Replies
2. Solaris
Hi
Can any help me on setting the swap memory ? I would like to set swap memory for installing oracle 9i software.
RAM - 512 Mb
HDD - 40 Gb
OS - Sun Solaris 5.9 (6 Replies)
Discussion started by: sivaramat
6 Replies
3. Shell Programming and Scripting
Hi,
When I execute one of my shellscript I am getting the below mentioned error message .This application takes 2input files which have the records counts 26463 and 1178046
exec(2): insufficient swap or memory available.
exec(2): insufficient swap or memory available.
exec(2):... (2 Replies)
Discussion started by: kavithakuttyk
2 Replies
4. UNIX for Advanced & Expert Users
Hi,
When I execute one of my shellscript I am getting the below mentioned error message .This application takes 2input files which have the records counts 26463 and 1178046
exec(2): insufficient swap or memory available.
exec(2): insufficient swap or memory available.
exec(2): insufficient swap... (3 Replies)
Discussion started by: kavithakuttyk
3 Replies
5. UNIX for Dummies Questions & Answers
Hi,
I want to see used swap memory
I know that for this there is command free -m
but this shows Swap: 16383 4529 11854
by top command
while load is 1.05
max CPU % 24 mysqld
why used swap shows 4529
either it is not flushed
there is other command... (2 Replies)
Discussion started by: kaushik02018
2 Replies
6. Solaris
:wall:I'm having a bit of a problem with Solaris 10u8 and one of our applications requesting memory and being told, "no space left".
The break down:
24GB Physical Memory
8GB swap
at the time of occurance, here's what a memory breakdown looks like:
Page Summary Pages ... (21 Replies)
Discussion started by: aychbee45
21 Replies
7. UNIX for Dummies Questions & Answers
hi guys
the monitoring team is using a tool for monitoring linux boxes and they set an alarm for swap memory to 10%(critical) I really has no idea when swap memory usage is high....
Can someone recommend me a threshold for this? when is warning or critical and this parameters can affect... (3 Replies)
Discussion started by: karlochacon
3 Replies
8. HP-UX
here is the output of swapinfo command
==> swapinfo
Kb Kb Kb PCT START/ Kb
TYPE AVAIL USED FREE USED LIMIT RESERVE PRI NAME
dev 8192000 0 8184000 0% 0 - 1 /dev/vg00/swap
reserve - 8184000 -8184000
memory ... (5 Replies)
Discussion started by: mohtashims
5 Replies
9. Red Hat
Hi team,
Is there any ability to force the system to use the swap memory for a specific service? And prevent another service of using the swap memory?
Thanks (2 Replies)
Discussion started by: leo_ultra_leo
2 Replies
10. Red Hat
Admins,
How can I configure the server so that it will utilize the swap file as little as possible? Please correct me if I'm wrong, I would say change the value of sysctl - vm.swappiness? And if, how can I keep it permenatly even after rebooting the system? since no related parameters in... (7 Replies)
Discussion started by: leo_ultra_leo
7 Replies
RAM(4) Kernel Interfaces Manual RAM(4)
NAME
ram - ram disk driver
SYNOPSIS
/sys/conf/SYSTEM:
NRAM ram_size # RAM disk size (512-byte blocks)
major device number(s):
block: 3
minor device encoding:
must be zero (0)
DESCRIPTION
The ram pseudo-device provides a very fast extended memory store. It's use is intended for file systems like /tmp and applications which
need to access a reasonably large amount of data quickly.
The amount of memory dedicated to the ram device is controlled by the NRAM definition in units of 512-byte blocks. This is also patchable
in the system binary through the variable ram_size (though a patched system would have to be rebooted before any change took effect; see
adb(1)). This makes it easy to test the effects of different ram disk sizes on system performance. It's important to note that any space
given to the ram device is permanently allocated at system boot time. Dedicating too much memory can adversely affect system performance
by forcing the system to swap heavily as in a memory poor environment.
The block file accesses the ram disk via the system's buffering mechanism through a buffer sharing arrangement with the buffer cache. It
may be read and written without regard to physical disk records. There is no `raw' interface since no speed advantage is gained by such an
interface with the ram disk.
DISK SUPPORT
The ram driver does not support pseudo-disks (partitions). The special files refer to the entire `drive' as a single sequentially
addressed file.
A typical use for the ram disk would be to mount /tmp on it. Note that if this arrangement is recorded in /etc/fstab then /etc/rc will
have to be modified slightly to do a mkfs(8) on the ram disk before the standard file system checks are done.
FILES
/dev/ram block file
/dev/MAKEDEV script to create special files
/dev/MAKEDEV.local script to localize special files
SEE ALSO
hk(4), ra(4), rl(4), rk(4), rp(4), rx(4), si(4), xp(4) dtab(5), autoconfig(8)
DIAGNOSTICS
ram: no space. There is not enough memory to allocate the space needed by the ram disk. The ram disk is disabled. Any attempts to access
it will return an error.
ram: not allocated. No memory was allocated to the ram disk and an attempt was made to open it. Either not enough memory was available at
boot time or the kernel variable ram_size was set to zero.
BUGS
The ram driver is only available under 2.11BSD.
3rd Berkeley Distribution Januray 27, 1996 RAM(4)