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

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2answers
1k views

Why won't Ubuntu tweak delete my Thumbnail Cache?

In Ubuntu tweak 0.8.7 which is installed in my Ubuntu 14.04 LTS running unity I could not delete a particular file called 'fail' in the thumbnail cache. I am actually trying to remove that file with ...
3
votes
1answer
22 views

View size of CPU cache through the command-line?

How do I view the size of my CPU cache using the command-line? I want to view information on L1, L2 and L3 cache. Also, would it be possible to ouput only information on cache, so that all other ...
1
vote
1answer
77 views

Cannot uninstall php-memcache using terminal

I uninstalled php5 from my computer with command sudo apt-get -y purge php.* running this command will show me this message in terminal: Errors were encountered while processing: php5-memcache ...
0
votes
2answers
431 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 ...
4
votes
1answer
52 views

How do I partition my SSD to benefit of the speed?

I've watched a few videos on Youtube and read a little bit on the internet about partitioning. But it is still unclear to me how to partition my 4 drives. Besides a Raspberry Pi and VM I have no Linux ...
0
votes
1answer
21 views

Downloading and playing audio from cache

I was wondering if there was a way to download (only audio) and play a youtube video. How does one read and download from cache using the terminal?
0
votes
1answer
44 views

L3 cache appears as disabled

In my XPS 8700 i7 4790, the comand lshw shows that the 8MB L3 cache is disabled, does this mean that the L3 cache is not working? should I not use ubuntu and go back to windows? does the operating ...
3
votes
1answer
2k views

Firefox cache2 'doomed' folder

I was recently looking in my Firefox cache as I have made it so that it does not cache: And I found this folder called doomed: ...
2
votes
0answers
310 views

huge cached memory, mostly freez system :(

I have a problem with system memory cache, i think it is bigger than normals. after 5-10 minute of usage, system become unusable and i must restart my "Asus X451-CA" laptop. this command ran upon user ...
2
votes
2answers
45 views

Prevent Ubuntu RAM increase rapidly?

I have ubuntu server 14.04 installed in my server. And i have vsftpd server that provide download file test for testing purpose. my question is why if client download the ftp file, my server ram is ...
16
votes
3answers
15k views

How to clean var/cache/apt in a way that it leaves only the latest versions of each package

I want to know a way to clean the var/cache/apt folder in a way that it only leaves the latest version of a package if it has several versions or it leaves a package if it is the only one of that ...
3
votes
1answer
104 views

Disable RAM memory caching for a particular program

I am running few benchmarks test using binaries made out of C. Is there anyway so I can ask kernel not to cache any part of these binary programs?
0
votes
1answer
32 views

cache request miss graphite sitespeed.io

I want to send data from sitespeed.io to graphite using this command sitespeed.io -u http://www.sitespeed.io --graphiteHost localhost -m 5 --graphiteNamespace sitespeed -b firefox -n 3 I think the ...
5
votes
0answers
342 views

Disable filesystem read cache

How can I disable the Linux file system read cache for Ubuntu 12.04? I don't want to only free the actual cache. echo 3 > /proc/sys/vm/drop_caches but disable the read cache completely.
-1
votes
1answer
30 views

Removal of files in sudo (Terminal) [closed]

Should I remove this file in my terminal for better performance? In a simpler explanation should I run: cd ls rm -r .cache for better performance? My assumption is that it will have to compile ...
0
votes
1answer
92 views

EnhanceIO persistent udev rules not firing on reboot - Ubuntu 14.04.3

Abstract : I've installed enhanceIO and enhanceio-dkms from the daily PPA at http://ppa.launchpad.net/enhanceio/daily/ubuntu/ giving version 0+git20130406-0~69~ubuntu14.04.1. Everything seems to be ...
0
votes
0answers
33 views

File cache slows down disk IO

I have this config: Linux peti-H97M-D3H 3.13.0-66-generic #108~precise1-Ubuntu SMP Thu Oct 8 10:08:09 UTC 2015 i686 i686 i386 GNU/Linux with 12GB RAM, Sandisk Extreme II SSD and i7-4770K. I must ...
0
votes
2answers
59 views

How to get Windows-like caching behavior for USB external drive

The problem: Thunar claims that it's written my files to a thumb drive, then I spend 15 minutes waiting for the drive to unmount. I understand it has to do with the write cache. I hope there's a way ...
5
votes
2answers
1k views

Safe to remove…?

I'm trying to customize a LiveCD, but I can't manage to fit it on a normal CD. So I investigated, and came across a few files of which I don't know if it's safe to remove them. Maybe you can help me ...
2
votes
0answers
492 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 > ...
1
vote
2answers
8k 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 ...
1
vote
1answer
56 views

Purpose of '~/.cache' directory and when is it safe to delete? [duplicate]

What is the purpose of every user's ~/.cache directory? Under which circumstances can it be deleted, when should one be careful about its contents?
9
votes
3answers
1k views

How to add packages to a squid-deb-proxy cache?

To save bandwidth and data on my Internet plan, I have installed squid-deb-proxy on a desktop, and the client on it and a few other machines I've got. However, based on the post that put me onto this ...
7
votes
2answers
3k views

How to make ubuntu use more RAM to cache a specific set of binaries?

After 2 weeks of trying, failing, trying again, still failing, I finally got Ubuntu stable and operational. My hard disk is quite old and slow but I have excessive RAM (16 GB 2133 mhz), so I was ...
48
votes
4answers
28k 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
1answer
103 views

SSD-caching vs OS on SSD - which is faster?

I have an Alienware laptop with a 750GB HDD and a 32GB SSD-cache. I currently have a Windows 10 partition that I only use for maintaining the SSD-cache and drivers. The laptop is useless for gaming ...
2
votes
1answer
403 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. ...
1
vote
1answer
46 views

Removing app cache

I recently installed cairo-dock, and it was working great, but now it is all buggy, so I tried to reinstall. I did sudo apt-get purge cairo-dock sudo apt-get clean sudo reboot now Then when I came ...
21
votes
4answers
12k views

Computer freezing on almost full RAM, possibly disk cache problem

The problem I think is somewhat similar to this thread. It doesn't matter if I have swap enabled or disabled, whenever the real used RAM amount starts going close to maximum and there is almost no ...
0
votes
0answers
78 views

deleted /var/cache on ubuntu 14.04 and apt-get and other programs crashes on terminal

I have installed Ubuntu alongside windows and have allocated only 10GB for the root. I kept getting messages that there's no space so I found according to the best voted answer in the following that ...
0
votes
0answers
47 views

Ubuntu Clearing Solid State Cache from other OS

I have a dual boot set up on my laptop with Windows 10 and Ubuntu 14.04. My laptop has a 1TB hard drive (with two partitions for the OSes) and a 24 GB SSD for caching. I have the SSD set up to cache ...
3
votes
2answers
3k views

Where is the Mozilla Firefox cache located?

I have got Mozilla Firefox installed, and am aware of the issues with nasty things like phishing scripts from images ending up in my browser's cache. And so that I don't have to just empty my cache ...
4
votes
2answers
595 views

Is it advisable to delete ~/.cache files?

~/.cache/* Is it good to delete all the files in .cache folder?
10
votes
2answers
21k views

How do I correctly enable PHP 5.5's OPCache in Ubuntu 14.04?

I'm setting up a local server to test configurations; it's a clean 14.04 LAMP server, as selected during OS install. If I understand correctly, OPCache comes with PHP 5.5 (php -v confirms this) but ...
0
votes
0answers
55 views

Delete RStudio cache in Ubuntu after Upgrade 0.99.467

After I upgrade to the newest version, which I downloaded from the website, RStudio opens with a blank window. This happened to me when I also upgraded it on Windows but I was able to resolve by ...
1
vote
0answers
115 views

Is it possible to use APCu with XAMPP on Ubuntu?

I've spent two days trying to install it with my php5.5.15 on Ubuntu 12.04.4 LTS. Just curious if anyone out there ever got it to work. If so, please help.
1
vote
0answers
48 views

Preloading Files

I want to pre-load some Files / Programs into the memory, ram, cache to open / access them faster. I already tried creating a tmpfs, ramfs System https://wiki.ubuntuusers.de/RAM-Disk_erstellen (Sorry ...
5
votes
2answers
3k 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 ...
1
vote
0answers
11 views

AptProxyCache Comparison

I have viewed this page about AptProxyCache but seems all are the same, is there any more differences between them such as performance, deploy difficulties and maintain costs? UPDATE: The ...
1
vote
1answer
288 views

How do I clear cache of ubuntu phone?

Hi my ubuntu touch phone (BQ 4.5) is running out of memory. I'm looking for GUI way to make space, most likely by clearing .cache folder. I'm happy to install app, use file manager, simply all ...
13
votes
6answers
35k views

Best way to set up DNS caching?

In order to speed up DNS lookups, I want to install a DNS cache or proxy. I can see at least three programs I think will do the job: bind9, pdnsd, or dnsmasq. I would like to make sure that if I ...
3
votes
1answer
33 views

Get firefox cache from localhost page?

So accidentally I deleted the directory of my website with rm -rf. The server is not running, but the page is open on my computer in Firefox. Is there any way to get the javascript files? I'm in ...
1
vote
0answers
48 views

How can I look for a smart radio player that automatically restart when the buffer gets empty?

I am tired to have the streaming broken. I tried rhythmbox, totem, audacious, even vlc where I configured 5 seconds of cache. The sound stops for a while then continue, most of times from the same ...
1
vote
0answers
38 views

Prevent page cache above certain RAM usage level

Someone here on AskUbuntu pointed out that disk caching is harmless thing, that only makes your disc read times faster. And that it is birds singing and flowers only. I kinda have to disagree: I ...
2
votes
0answers
429 views

Software Centre is missing icons

I have a problem with Ubuntu Software Centre not showing icons for available apps, e.g: Is there a command to refresh the icon cache for Ubuntu Software Centre?
0
votes
0answers
639 views

Squid Cache Problems

I'm new to Ubuntu (and Webmin, Squid, etc). I Installed everything and got the squid3 running, but I'm stuck in initialze cache part. When I click on it, the result shows: Error - Perl execution ...
0
votes
0answers
277 views

squid3.3 config directives help in Trusty Tahr 14.04

I have problem with my squid.conf file and I able to make some changes myself but not every change i could have done to make it work properly according my need i have a 10 to 40 client at local ...
1
vote
1answer
31 views

Mutt attachments in cache

I am planning to try out mutt (and if it feels "solid" enough, migrate from Thunderbird) Do I need to use offlineimap or some other solution to save the attachment locally, or does the built-in ...
0
votes
0answers
77 views

How to tune HDD read cache? or alternative view on WD Green problem

Setup WD Green HDDs have a feature of parking themselves after 8 sec of inactivity. The timeout can be changed. My portable PC has WD Green HDD as well as another SSD. I have Ubuntu on SSD and use HDD ...
1
vote
0answers
372 views

Steam client GUI rendering glitch (flickering, weird overlay). Also affects Strife game

I'm running Ubuntu 14.04 on a Macbook 2,1 with 4gb RAM (about 3gb usable). All other games run fine, but the Steam client itself renders all wonky, and Strife has the same problem as Steam. Links ...