a cache stores temporary data nearby so that it can be retrieved much more quickly than fetching it from the real backing store (disk, network), or recalculating some result all over again
0
votes
1answer
11 views
connect to another proxy through squid
i have an HTTPS proxy outside which uses username/password for authentication and i want to configure squid on ubuntu 12.10 to direct all connections which are not in it's cache to that proxy. how can ...
0
votes
0answers
14 views
Cache NFS Shares on Local Disk through Virtual Machine
I'm running 64-bit Ubuntu 12.04 and trying to set up FS-Cache using CacheFS as the backend on a virtual machine which is using Ubuntu 12.04 32-bit After following this tutorial to use cachefilesd,
How ...
2
votes
1answer
12 views
Ubuntu sudden crash - Cache_Error
I was drawing svg in a text editor when, suddenly, Ubuntu 13.04 crashed on me displaying a few lines, similar to each other. Here are the two first :
[30714.772014] nouveau E[ 1265] failed to ...
0
votes
1answer
51 views
New XPS, Starting on Linux, Still a Windows power user, configuration question
I just bought a Dell XPS with Windows 8. Spent several months making the choice. The OS is on the 500GB HDD, and the 32GB SSD is used as cache.. seems standard.
I've been wanting to get into Linux ...
0
votes
1answer
104 views
Error opening cache E: read error -read (5:input/output error)
I tried to install 13.04 after downloading and burning on a boot disc, or 12.04 from a disc from a magazine over windows 7 on a netbook but got the following code
an error occurred, please run ...
0
votes
0answers
212 views
Error while updating via terminal from Ubuntu 12.10 to Ubuntu 13.04
I get this error multiple times (and these codes underneath still run for some reason)
This likely means that your installation is broken.
Try running the command:
gdk-pixbuf-query-loaders > ...
0
votes
2answers
51 views
How can I clean my software caches from the command line?
In the upgrade from 12.10 to 13.04 I lost the ability to use Ubuntu Tweak's Janitor to clean caches so I would like to know how to do it from the command line.
0
votes
1answer
71 views
How can i enable adobe flash player to use local cache
As the title says: using ubuntu 12.04LTS, how can i enable adobe flash player to use local cache?
0
votes
0answers
13 views
caching images with apache reverse proxy
I'm trying to set up an apache2 reverse proxy to cache images. (Apache, not nginx required)
There appear to be headers being cached, but not images,css etc.
My config:
CacheEnable disk /
...
0
votes
0answers
73 views
dump cache of bind dns
when I do rndc dumpdb then this file has no new cache dumped (18.04 was yesterday, I don't know how I did this dump) and looks like:
> ; ; Start view _default ; ; ; Cache dump of view '_default' ...
0
votes
0answers
10 views
location of usb write cache
I've been having issues writing large file transfers to my USB stick. Many times it sits for hours "writing" but i'm not sure if it is frozen or actually writing.
2
votes
2answers
1k views
What is recommended as optimal SSD+HDD Setup for Ubuntu?
With lots of guides and setup variations all over the internet, I find it confusing which is which to really follow. Normally, in Windows 8 my setup would be install everything in the HDD and use ...
1
vote
1answer
144 views
What is icon-theme.cache?
When I run the following command on my Lubuntu 12.10
[11:09 PM] ~ $ find /usr/share/icons/ -iname icon-theme.cache -type f
I get the following (after adding the last modified date and size):
...
0
votes
1answer
89 views
how to check if cache is working
is there a way to check if disk cache is working on a regular sata disk?
i see "asking for disk cache failed" error messages, but discovered my laptop has a 1gb solid state drive without a ...
0
votes
0answers
14 views
Fonts are missing on fresh boot
When I boot my ubuntu studio 12.10 i sometimes experience that fonts are missing. Clearing the font cache and executing fc-cache solves it but I have to do it all the time.
Also I get a warning about ...
0
votes
0answers
30 views
How do I set up (rel)atime with nfs correctly?
I have the /home directory mounted over nfs (v3) with local cache. For some programs to work (mutt for instance), atime support has to be enabled or set to relatime in the home folder.
In order to ...
2
votes
0answers
69 views
How can I make squid-deb-proxy work with proxy authentication?
I have squid-deb-proxy working fine without a problem without apt proxy authentication.
However when I add a proxy file to /etc/apt/apt.conf.d and put in my proxy authentication inside this file. ...
0
votes
1answer
185 views
How do I flush out the DNS resolver cache? [duplicate]
On Microsoft Windows OS, at the command prompt, I issue the command ipconfig /flushdns to flush out the DNS resolver cache.
On Ubuntu 12.10, what is the corresponding command?
0
votes
0answers
21 views
how do i install ubuntu on ssd cache and maintain windows acceleration? [duplicate]
I hope this is the right place to ask this question.
I just bought a lenovo u310 preinstalled with windows 7. It has a 32 GB ssd cache drive and a 500 GB hard drive. I want to install Ubuntu root ...
0
votes
0answers
81 views
How to turn off HDD write cache?
I want to turn off HDD write cache permanently. Is there a better way to do this than running hdparm -W0 /dev/sda some time during start up?
3
votes
1answer
194 views
How do I activate a local caching nameserver?
I want to have strong DNS cache server on my local host (server). So I need to change name server to my localhost.
How can I change it?
byt this config it seems I must don't change it via editor so ...
3
votes
0answers
33 views
What is the optimal configuration for a laptop with a 24GB SSD cache? [duplicate]
I have a Sony Vaio ultrabook that contains a 24GB ssd drive and a 750GB hard disk. What is the optimal configuration for installing ubuntu on this to get the most out of the hardware?
Would I be ...
1
vote
0answers
60 views
How to remove caching of NFS shares on local disk
My desktop don't have an internal hard drive. I installed Ubuntu in a crappy old portable hard disk which is very slow. I mounted the home folder of my laptop to the desktop using NFS. My desktop and ...
28
votes
1answer
1k views
How do I install and use flashcache/bcache to cache HDD to SSD?
I want to know if there is anyone who has tried installing and running their kernel built with flashcache or bcache for SSD caching?
How did you manage to do it?
0
votes
0answers
25 views
Why does my Music Zipped folder not stay in RhythmBox? [duplicate]
Ubuntu 12.04.
I have downloaded a few songs (And they are legal, before you say they were a virus.) and they came in a zipped folder. When the Archive Manger opens, I click on a song, and RhythmBox ...
3
votes
1answer
852 views
Can I cache an mdadm raid with an ssd?
I have a 1TB array set up in raid 1 using mdadm on Ubuntu 8, to store mission-critical files. I'd like to speed up read/write, especially for large files by caching to an SSD. Is this possible? Does ...
0
votes
1answer
122 views
Configuring a HTTP and HTTPS web accelerator using Varnish
I have installed and configured varnish on my new server. The server is currently working for http traffic.
I would like to also forward SSL traffic to my webserver. It is not necessary to cache this ...
1
vote
0answers
90 views
Disk cache is sometimes dropped/erased
I have a memory/cpu monitor running, and sometimes see the graph line for “cached memory” drop, for no apparent reason.
Earlier today Cache memory was at about 4.8GB but then dropped in two steps ( a ...
0
votes
1answer
207 views
how clear/clean unneeded files or cache for my customized distro
Can you help me to find out how do I clear the Cache files or unnecessary or lib that can be updated on new ubuntu install
i used "ubuntu 12.10"
this my top size file/folder list:
4380MiB /usr
...
1
vote
3answers
110 views
Making up cacher server for older ubuntu releases
we have ubuntu 10.04 and ubuntu 10.10 operating systems. However our software works only in these versions. We are facing some problems in the new versions 12.04 (LTS) we are working in it. But ...
0
votes
1answer
417 views
Can we install Xcache 2.0 or 3 on Ubuntu 12.04?
Xcache have already reached the version 3.0. But in Ubuntu 12.04, we still have version 1. How can we install Xcache 2 or 3 in Ubuntu 12.04?
2
votes
1answer
509 views
Install deb package with all dependencies in same folder?
I need to install multiple deb files of same software from apt cache in another ubuntu installation.
For example, I have all deb files of vlc in same folder(/var/cache/apt/archives). I need to ...
6
votes
3answers
281 views
Tell the kernel to strongly cache a particular directory
This question is a rephrasing of Optimizing EXT4 performance.
I have a directory that contains build files, most very small, but totaling 5.6G.
I usually access the same subset of files (some ...
0
votes
1answer
36 views
Install packages in cache automatically
I have restored all my packages to cache using aptoncd. Now I want to reinstall the packages without having to choose each package. Is there any way?
6
votes
3answers
264 views
How do I tell what type of CPU cache is in my laptop?
Is there an application for Ubuntu that could tell me details about CPU, CPU cache memory, memory hierarchy, cache architecture implemented in my system, cpu cache size, cpu cache, access cycle and ...
1
vote
1answer
112 views
Dump video data from RAM DISK to the HARD DISK?
This is the story:
Some online video streaming sites like www.putlocker.com won't allow Adobe Flash Player to cache the streaming videos on your Hard Disk, so the users can't watch them offline.
...
0
votes
3answers
310 views
How can I use up all RAM by cache?
I am using Ubuntu 12.10 with 4G RAM. I have changed SWAP to 10 and installed Preload. However, My system only use less than 1G RAM to cache and It remains more than 2G RAM standby.
How can I use up ...
2
votes
3answers
284 views
What is the write-mode policy that is used in Ubuntu?
Is there anyway to see whether Ubuntu uses write through or write back policy?
I know that write back is much better, but when I write a program in C to test the cache, it appears that Ubuntu uses ...
3
votes
1answer
331 views
KVM host: Ubuntu 12.04 3.2 Kernel showing incorrect “cache size” in cpuinfo?
2x Xeon E5620 .
16 Cores altogether.
/proc/cpuinfo shows cache is only @ 4096kb
According to intel this should have 12MB of "smart cache".
Doing searched for E5620 and CPUinfo shows the correct ...
0
votes
1answer
419 views
Will my nginx reverse proxy cache work?
I have a website running Nginx and Apache
Apache deals with PHP files, and Nginx the html static files
We have now changed the site so there are no html static files, only PHP files and this has ...
1
vote
0answers
111 views
How can I stop Nautilus from caching thumbnails?
In Nautilus, I want to see thumbnails on the fly, but I don't want them to be cached. Any way to do this?
0
votes
2answers
345 views
Clearing firefox's cache [duplicate]
Possible Duplicate:
How can I get the menu bar in firefox?
I have ubuntu installed on my mac with VirutalBox. Firefox is installed and I want to clear the cache of Firefox. I don't find any ...
0
votes
2answers
291 views
Are the deb files stored in /var/cache important?
I have nearly 800 MB of .deb files in cache folder ....
I went through other posts related to this query but I wan not convinced.
Should I just save all theses files somewhere ?
I guess it won't ...
7
votes
5answers
6k views
How do I use zRam?
I installed zRam as described on webupd8.org. I installed it from the terminal. Is that all I have to do or do I have to do some configuration or something? Does the zram-enabler do everything by ...
0
votes
1answer
2k views
How to change default location of Thunderbird cache directory?
Mozilla Firefox has the key browser.cache.parent_directory for this but in Thunderbird I couldn't find it.
2
votes
1answer
129 views
Why does Zeitgeist use ~/.local/share/ instead of ~/.cache?
I have noticed that many applications like Chromium, MC, and Ubuntu One use one common ~/.cache directory, so why doesn't Zeitgeist?
0
votes
1answer
357 views
Why is downloading repository updates so slow?
Okay, I have Ubuntu version 11.10 and I wish to upgrade to 12.04. Whenever I open the Update Manager and click "Check," it has taken literally over an hour to download the cache. I cannot update ...
3
votes
2answers
6k views
How do I clean or disable the memory cache?
After the system starts, in a few minutes my memory cache fills up and it starts using the swap. Here's a screenshot of /proc/meminfo.
However, if I can disable this process / clean the cache once ...
0
votes
0answers
176 views
ubuntu is very slow
Hello all. I am new with Ubuntu, and it is very slow(even in Ubuntu 2D). The performance is degraded for almost any task. I just reinstalled with amd64, and tried updating the Nvidia drivers with ...
4
votes
1answer
82 views
Is it possible to recover unflushed data from the disk/page cache?
In Ubuntu, I move some file to a USB stick, using mv dir/file /media/7EXXX/swap/. When finishing this, I forget to "safely remove" before physically removing usb stick. Now, the file is not shown in ...
