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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2
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2answers
460 views

SSD cache for Lenovo Y500

I have a Lenovo Y500 with a dual GTX650M, 16Gb SSD and 1Tb HDD. I just install a clean Ubuntu 13.04 then upgrade to 13.10. Previously I had windows 8 but I cleaned it off and only use Ubuntu 13.10 ...
1
vote
2answers
62 views

How to start in background a list of applications on login

I observed the following thing: I login on my computer account. I run in the Terminal some-app I wait about 20 seconds to start. Then I close it. I run same command in terminal. It start in about 1 ...
1
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2answers
48 views

select packages related to some program in apt archive

Suppose that I have installed a program "someProgram". Now, I want to select the .deb packages that were downloaded into /var/cache/apt/archive folder. How can I select the packages related to ...
0
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2answers
28 views

How to update a machine from packages downloaded on a different but similarly configured machine?

I have two laptops with similar configuration. I have updated one and would like to use the cached packages of this to update the other one. I cannot find a way. I did Ctrl+A then Enter but machine ...
0
votes
2answers
172 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.
5
votes
1answer
862 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 ...
3
votes
1answer
73 views

Disable memory cache - real reason

OK, before you mark my thread a duplicate I want to say, that I know this very good answer: How do I clean or disable the memory cache? But this is not case for me. I am making some performance tests ...
2
votes
1answer
115 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 ...
1
vote
1answer
187 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 ...
1
vote
1answer
192 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
1answer
38 views

There is a file in ~/.cache/deja-dup/.. with 899G size

I am running my mail server on ubuntu which has 1.2 TB in total space. Today I realized there was an issue on my mail server, it was refusing sending/receiving mails due to storage which triggers ...
0
votes
1answer
76 views

Should I put /boot on SSD or HDD

I am running Lubuntu 14.04 64bit. I am planning to implement EnhanceIO to use my new 25GB SSD drive for caching my 4TB RAID 0 array. The raid array is partitioned as: 500MB /boot, 20GB /, 200GB ...
0
votes
1answer
186 views

How to cache (more) data on SSD/RAM to avoid spin up?

I have Ubuntu server 12.04 running on a 40GB SSD with a raid 5 mounted for media files. I access the files often via samba either with a Raspberry Pi for music playback or with another PC for the ...
0
votes
1answer
2k 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
1answer
733 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
1answer
85 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?
0
votes
1answer
703 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 ...
0
votes
1answer
998 views

Packages (gstreamer, etc.) cause Broken Cache

When installing "Teamviewerx64", a package error occurs. Output of the error: Title: Package operation failed In a nutshell: The installation or removal of a software package failed. Details: ...
0
votes
1answer
109 views

How can I set up URL Caching in Ubuntu?

I'd like to set up Linux to cache some commonly requested URLs so that it doesn't have to go out to the net to get them every time. This would be a system-wide URL cache, not just in a particular ...
2
votes
0answers
90 views

INCONSISTENT usb write/copy speeds; cache problem?

Foremost, slow USB write/copy speeds seem to be a hackneyed topic. But this issue is one I've not seen presented elsewhere. Thanks for showing this novice your support. I'm copying the same .iso ...
2
votes
0answers
366 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 > ...
2
votes
0answers
262 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
0answers
31 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 ...
1
vote
0answers
108 views

Can't configure NGINX to cache the images

I have been trying to cache images that are stored in nginx server, I am quite new here and to nginx I have installed it and configure it with php5-fpm, I have been reading many tutorial regarding ...
1
vote
0answers
70 views

Error when starting ubuntu laptop.

My laptop is a modified Toshiba Satellite L355. It has a Intel core 2 duo 1.83ghz Cpu and 3gb ddr2 Ram. I'm using Saucy Salamander 13.10 I installed Ubuntu Studio a while back when my friend gave it ...
1
vote
0answers
32 views

Set XDG Cache for Chromium

I want to use the XDG standard to export Chromium's cache to /tmp/chromium, which I've mounted in RAM. I'll do this with a script in /etc/profile.d. But the contents of the file I don't know. If I ...
1
vote
0answers
122 views

No automatic thumbnail generation

I recently decided to do a fresh install of 13.10 and ran into a quite peculiar problem. It seems that thumbnails are not generated automatically, when I open a folder in nautilus I can only see a ...
1
vote
0answers
198 views

Can't Start Carbon - 12.04 - Python Error

I am really hoping someone can help me as I have spent at-least 15 hours trying to fix this problem. I have been given a task by a potential employer and my solution is to use ...
1
vote
0answers
114 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 ...
1
vote
0answers
120 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
0answers
14 views

How often is the thumbnail cache cleared?

I'm not sure which application is the culprit (Nautilus, with the help of another library, I would assume), but if you take a look at ~/.cache/thumbnails you will notice that Ubuntu stores the ...
0
votes
0answers
12 views

Clear history of words typed in the dialog run (ALT + F2)?

wanted to erase all the words that remain as an option, every time tightening ALT + F2
0
votes
0answers
25 views

Disable filesystem read cache

How can I disable the Linux filesystem read cache for Ubuntu 12.04? I do not want to only free the actual cache ( echo 3 > /proc/sys/vm/drop_caches ) but disable the read cache completly.
0
votes
0answers
3 views

Distributed share storage across WAN

I'd like to build something which looks like "BranchCache" in Windows Server with Ubuntu. That is : - publish/share a folder on an Ubuntu Server in site A - have a user located in site B access the ...
0
votes
0answers
21 views

Putting Firefox in a truecrypt disk

Hello I am new to Ubuntu, my priority is to move the cache to a mounted truecrypt disk, my biggest problem is that I am confused about "directories", because in Windows it was easy to just put the ...
0
votes
0answers
43 views

Ubuntu NAS, cache files to ram for enhanced transfers?

I have a little dual core celeron computer that I will be using as a NAS. I have 8 GB of ram, and I was wondering if there was anyway to leverage that ram to increase file transfer speeds, especially ...
0
votes
0answers
35 views

Changes not reflecting back to the browser. Editing files remotely through FTP. Ubuntu Server.

I am developing and editing files through FTP. The changes are not reflecting back on the browser. I have cleared cache on the browser using key combination but still the changes are not reflected. I ...
0
votes
0answers
562 views

EnhanceIO: Write-through vs Read-only

I have installed an EnhanceIO SSD cache on my notebook. EnhanceIO supports three caching modes: read-only, write-through, and write-back. Read-only caching mode causes EnhanceIO to direct ...
0
votes
0answers
84 views

about strange cache usage on ubuntu13.10

Ok, i have just installed ubuntu 13.10, and likes its cool, however, it also make me surprised that when I download files from Internet by using the scp or wget or firefox download, the cache usage ...