Sponsored Content
Top Forums UNIX for Advanced & Expert Users echo 1 > /proc/sys/vm/drop_caches a good idea? Post 302463049 by achenle on Friday 15th of October 2010 02:39:23 PM
Old 10-15-2010
Unless you're trying to address a performance issue, I'd agree that there's no need to prevent any cache use.

Look at it this way: cached data will be discarded if anything else needs the RAM, and free RAM is wasted RAM.

Seriously: free RAM is wasted RAM.
 

8 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Dual Boot a good idea?

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

Limitations of awk? Good idea? Bad idea?

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

Echo escaped \c in SH Shell Any Idea

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

any good idea on this?

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

Kernal panic error& setuproot:error mounting /proc&/sys

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

Compact script with array - Good idea?

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

Drop_caches doesn't work on Solaris but works on RHEL6

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

Cat /proc/sys/net/ipv4/ip_local_port_range

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
Catalyst::Plugin::Cache::Store::FastMmap(3pm)		User Contributed Perl Documentation	     Catalyst::Plugin::Cache::Store::FastMmap(3pm)

NAME
Catalyst::Plugin::Cache::Store::FastMmap - DEPRECATED - FastMmap cache store for Catalyst::Plugin::Cache. SYNOPSIS
# instead of using this plugin, you can now do this: use Catalyst qw/ Cache /; __PACKAGE__->config( cache => { backend => { class => "Cache:FastMmap", share_file => "/path/to/file", cache_size => "16m", }, }); STATUS
This plugin is deprecated because Cache::FastMmap no longer needs to be wrapped to store plain values. It is still available on the CPAN for backwards compatibility and will still work with newer versions of Cache::FastMmap with a slight performance degredation. DESCRIPTION
This store plugin is a bit of a wrapper for Cache::FastMmap. While you could normally just configure with backend => { class => "Cache::FastMmap", share_file => ..., } Cache::FastMmap can't store plain values by default. This module ships with a subclass that will wrap all values in a scalar reference before storing. This store plugin will try to provide a default "share_file" as well, that won't clash with other apps. CONFIGURATION
See "CONFIGURATION" in Catalyst::Plugin::Cache for a general overview of cache plugin configuration. This plugin just takes a hash reference in the backend field and passes it on to Cache::FastMmap. SEE ALSO
Catalyst::Plugin::Cache, Cache::FastMmap. AUTHOR
Yuval Kogman, "nothingmuch@woobling.org" COPYRIGHT &; LICENSE Copyright (c) Yuval Kogman, 2006. All rights reserved. This library is free software, you can redistribute it and/or modify it under the same terms as Perl itself, as well as under the terms of the MIT license. perl v5.14.2 2007-07-05 Catalyst::Plugin::Cache::Store::FastMmap(3pm)
All times are GMT -4. The time now is 08:12 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy