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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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 ...
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 ...
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 ...
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?
-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
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 ...
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
58 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 ...
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 ...
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?
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 ...
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 ...
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 ...
4
votes
2answers
595 views

Is it advisable to delete ~/.cache files?

~/.cache/* Is it good to delete all the files in .cache folder?
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
114 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 ...
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 ...
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 ...
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: ...
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 ...
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 ...
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
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 ...
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 ...
0
votes
0answers
115 views

gem5 - Setting up x86 fs & running cache coherency code

I am new to gem5 and am trying to run the MI_example cache coherency protocol test code for x86 system in gem5. I was trying to run the ruby_fs.py script but I came to know it has be eliminated from ...
1
vote
0answers
20 views

How do I configure the Ubuntu SDK to use a proxy cache?

The Ubuntu SDK sets up emulators for me, which seems to involve a call to click chroot which then runs debootstrap. How do I pass through my proxy server settings through to debootstrap? I want to do ...
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
133 views

Lenovo E540 SSD cache solution

My company gave me a Lenovo E540 that has an integrate 16 Gb SSD cache. I'm wondering how to use the cache with an existing Ubuntu 14.04 LTS installation, I found several posts explaining about ...
1
vote
0answers
80 views

Kdecache-user taking up lots of space

My computer has started to show signs of a bloated root partition. I checked it out using ncdu and discovered that the directory at /var/tmp/kdecache-user/ has swelled to 1.6 gigs. After doing a ls ...
0
votes
1answer
264 views

Is it possible to limit cache memory to a process?

I am using network capture tool named dumpcap and it is consuming too much cache memory. So other processes getting no memory to run. htop command shown cache memory as 29 GB in Meters. Can ...
0
votes
0answers
66 views

Maintain a local cache for offline browsing

I am building a web kiosk that I want to be available even if internet is lost. The browser is chrome and its based on Ubuntu. Is there a way to do this with a local proxy/cache server running on ...
0
votes
0answers
169 views

My laptop very slow, Is the problem with Hard Disk or RAM ( very low Timing cached reads value)

My laptop has been running very slow, I reinstalled Ubuntu and also tried Windows but didn’t find any difference. I thought this could be a problem with my HD. I tried the below tests with hdparm ...
0
votes
0answers
34 views

APC opcache works but no statistic

I installed APC opcache for my site .I think it work well but did not see any traffic: File Cache Information Cached Files (260.9 MBytes) Hits 1 Misses Request Rate (hits, misses) 0.00 cache ...
0
votes
0answers
196 views

LDAP double root password

I've changed my LDAP root password following a few guides like this one and this one. I'm in Ubuntu 14.04, and in /etc/ldap/slapd.d/cn=config I've created a subdirectory and placed my ldif file in ...
0
votes
1answer
36 views

Location or arp cache

I can see my arp cache if I enter arp into the terminal. I want to know the file location of the arp cache in Ubuntu.
0
votes
1answer
61 views

Simple html cache for Ubuntu Server 14.10

Which is the best system for html cache in Ubuntu Server? I have some sites in hosting on my dedicated server. I installed and set APC, I enable the cache of Apache. The sites are all made in ...
1
vote
0answers
229 views

Java applications do not work in Ubuntu 14.04

I have had working Java environment til Yesterday, I cleared my all files and folders in /tmp/ then restarted my computer after that I can not get any Java applications (Chrome, Firefox, Thunderbird, ...
0
votes
1answer
31 views

Installing files from archive cache

How to make a backup of apt archive cache? If I make a backup of the archive cache can I install the applications in the current system to any system, which is running the same OS, using the archive ...
1
vote
1answer
208 views

Deleted /var/cache

My computer was slowing down, and I saw that deleting /var/log and /var/cache could help, so I did it... I didn't know /var/cache was so important, I tought it would just rebuild itself and deleting ...
1
vote
0answers
536 views

Why does Firefox ignore the `304 Not Modified` status sent by the webserver?

For my site, Firefox 32.0 seems not to cache a CSS file of my Nikola 7.1.0 installation and ignores the 304 Not Modified response by the webserver. What also puzzles me, is that it sends the 2nd ...
1
vote
0answers
26 views

Difference between System monitor and free -h [duplicate]

I have a Lenovo T430 laptop with 3.7GB of RAM. Since I started using this machine I observe the following strange behavior. If I do a lot of things, say have rails server running, a few nodejs ...