10-15-2010
What is the value of (your) /proc/sys/vm/drop_caches now?
8 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I was just wondering if it would be alright to dual boot a machine with both UNIX using XTERM for the interface and windows 98 or if people consider this a bad idea? if you consider it bad do tell me some possible alternatives..also would it be better to get linux over pure unix? I'd like a visual... (8 Replies)
Discussion started by: PravusMentis
8 Replies
2. Shell Programming and Scripting
Keeping in mind that I'm relatively comfortable with programming in general but very new to unix and korn/bourne shell scripts..
I'm using awk on a CSV file, and then performing calculations and operations on specific fields within specific records. The CSV file I'm working with has about 600... (2 Replies)
Discussion started by: yongho
2 Replies
3. Shell Programming and Scripting
Hi All,
I have got an echo statement with "\c" in it to avoid getting into a newline. Ths script is using #!\bin\sh
Any idea what could make it to escape "\c" (4 Replies)
Discussion started by: asami
4 Replies
4. Shell Programming and Scripting
txt file like this,
1 2 3 4456
a bb c d 3 f e
1 k 32 d m f e
123 m 2 k
every line contains 3 or more columns, all the columns are separated by space, and every column includes 1 to 3 character.
what I wanna do is deleting the first three columns, and keep the rest no matter how long... (7 Replies)
Discussion started by: fedora
7 Replies
5. Linux
Hi all,
I am new to redhat/fedora linux.
In fedora linux 6,we created one file system(hda3 - /fs).
in this mount poing we were installed mounta vista os.
while booting we are getting below error messages.
1)
Booting 'mountaVisat(2.6.18_pro 500_pc_target-x86_586 smp)'
root(hd0,1)... (2 Replies)
Discussion started by: arjunreddy3
2 Replies
6. Shell Programming and Scripting
Hi,
I have a shell script where a lot of the code is repeated. I wanted to make the code much more compact so I spoke to a guy and he suggested using arrays, like follows:
#!/bin/bash
readonly -a nginx=('nginx' '--prefix=/opt' '-j 4'
'http://nginx.org/download/nginx-1.2.2.tar.gz'
)... (2 Replies)
Discussion started by: Spadez
2 Replies
7. Solaris
Hello Experts,
I am performing performance tests on a few mysql select queries.
I use the following command to clear the memory disk caches.
sync && echo 3 | sudo tee /proc/sys/vm/drop_caches
I however see that the above command works on RHEL6 but doesn't work on Solaris 10.
I asked... (4 Replies)
Discussion started by: Anirudh Kumar
4 Replies
8. IP Networking
Hello,
/proc/sys/net/ipv4/ip_local_port_range returns 32000 - 61000,
i have a client TCP and a Server TCP. i have used bind() only on the server, the port of socket client is given by the OS that's it ?
it retrieves this port from this range (/proc/sys/net/ipv4/ip_local_port_range) ?
... (5 Replies)
Discussion started by: chercheur111
5 Replies
LEARN ABOUT DEBIAN
cache::sizeawarecache
Cache::SizeAwareCache(3pm) User Contributed Perl Documentation Cache::SizeAwareCache(3pm)
NAME
Cache::SizeAwareCache -- extends the Cache interface.
DESCRIPTION
The SizeAwareCache interface is implemented by classes that support all of the Cache::Cache interface in addition to the limit_size and
max_size features of a size aware cache.
The default cache size limiting algorithm works by removing cache objects in the following order until the desired limit is reached:
1) objects that have expired
2) objects that are least recently accessed
3) objects that that expire next
SYNOPSIS
use Cache::SizeAwareCache;
use vars qw( @ISA );
@ISA = qw( Cache::SizeAwareCache );
CONSTANTS
Please see Cache::Cache for standard constants
$NO_MAX_SIZE
The cache has no size restrictions
METHODS
Please see Cache::Cache for the standard methods
limit_size( $new_size )
Attempt to resize the cache such that the total disk usage is under the $new_size parameter. $new_size represents t size (in bytes)
that the cache should be limited to. Note that this is only a one time adjustment. To maintain the cache size, consider using the
max_size option, although it is considered very expensive, and can often be better achieved by peridocally calling limit_size.
OPTIONS
Please see Cache::Cache for the standard options
max_size
Sets the max_size property (size in bytes), which is described in detail below. Defaults to $NO_MAX_SIZE.
PROPERTIES
Please see Cache::Cache for standard properties
(get|set)_max_size
If this property is set, then the cache will try not to exceed the max size value (in bytes) specified. NOTE: This causes the size of
the cache to be checked on every set, and can be considered *very* expensive in some implementations. A good alternative approach is
leave max_size as $NO_MAX_SIZE and to periodically limit the size of the cache by calling the limit_size( $size ) method.
SEE ALSO
Cache::Cache
AUTHOR
Original author: DeWitt Clinton <dewitt@unto.net>
Last author: $Author: dclinton $
Copyright (C) 2001-2003 DeWitt Clinton
perl v5.12.4 2009-03-01 Cache::SizeAwareCache(3pm)