06-05-2002
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Dear Group,
I am not much used to UNIX. The company I am hosting wiht refuses to help me with this trouble, but as near as I can see, it is NOT my trouble.
I have had this service for over a year. I just renewed for another year and all of a sudden the disk quota has been disappearing. I... (3 Replies)
Discussion started by: cindy
3 Replies
2. UNIX for Dummies Questions & Answers
hi
I have an sun ultra 5 running a firewall which has logging enabled (essential). The disk is sliced up with /proc on / (c0t0d0s0). / is sliced at 3 gig. My problem is this, one afternoon, a manager asked me to retrieve some firewall logs, so i went into the relevant directory (also on the /... (3 Replies)
Discussion started by: hcclnoodles
3 Replies
3. What is on Your Mind?
Hi, guys !
I was wondering... how many of you are vegetarians ? and why ? (31 Replies)
Discussion started by: Sergiu-IT
31 Replies
4. Solaris
Hi,
I am not very much fmiliar with Solaris OS. My main concern for posting is One application is eating 50% of CPU and I cannot run that application, If I perform any action in that application it takes real long time.
I have solaris installed on my development machine.I have my application... (11 Replies)
Discussion started by: pandu345
11 Replies
5. Solaris
Hi,
I have installed sendmail on my solaris server. But sendmail its up high memory. its eat upto around 9-10 GB memory.
What to do in this ?
Thanks
NeeleshG (6 Replies)
Discussion started by: neel.gurjar
6 Replies
6. 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
7. Shell Programming and Scripting
Hi!
Could someone explain me why the below code is printing the contents of IF block 5 times instead of 0?
#!/bin/bash
VAR1="something"
VAR2="something"
for((i=0;i<10;i++))
do
if(($VAR1=~$VAR2))
then
echo VAR1: $VAR1
echo... (3 Replies)
Discussion started by: machinogodzilla
3 Replies
8. Shell Programming and Scripting
how to find a job which is writing a big file and eating up space? (3 Replies)
Discussion started by: rush2andy
3 Replies
9. Shell Programming and Scripting
Hi all,
using AWK iam sorting auniq data from a file the file size is 8GB, while running that script , the over all cpu usage will be nearly 8
how to avoid this ?? any other alternate is available for awk?
Thanks in Advance
Anish kumar.V (13 Replies)
Discussion started by: anishkumarv
13 Replies
10. 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
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)