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
550 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 ...
3
votes
1answer
207 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 ...
2
votes
1answer
435 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
238 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
1answer
234 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
290 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
14 views

How do I know the cache-line settings of my Ubuntu 14.04?

I am working on a 32-bit Ubuntu 14.04 machine, and I am asked to provide the "cache-line setting" of my machine. I am wondering can I directly inquire this information from the OS? Or I need to dig ...
0
votes
1answer
78 views

How do I setup multiple memcached instances running on different ports?

I am running Ubuntu 15.10 and already have memcached installed on my system. My current project requirement is to run two instances of memcached on the same server but with different ports. I start ...
0
votes
1answer
45 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
79 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
1answer
223 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
1answer
408 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
1answer
461 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
194 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
778 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
3k 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
1k 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 partition....
0
votes
1answer
228 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?
2
votes
0answers
196 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.
2
votes
0answers
489 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?
2
votes
0answers
409 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
0answers
280 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
171 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 ...
2
votes
0answers
504 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
0answers
23 views

apt-xapian-index, how to limit its disk usage or safely move it away?

My /var/cache/apt-xapian-index has 4.5GB. I like the synaptic search functionality a lot, but that price is too much for my small SSD... I was thinking what I can do about it, to keep it available ...
1
vote
0answers
73 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
68 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
529 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 ...
1
vote
0answers
24 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 ...
1
vote
0answers
110 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 -...
1
vote
0answers
254 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, ...
1
vote
0answers
689 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
601 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
137 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
21 views

tools for files extraction from squid cache

I need to know how RESTful api works. So I cache traffic from an app to a server using squid proxy. Is there any tool to extract json data (and files) from squid cache? Or... May be I'm missing ...
0
votes
0answers
32 views

fastcgi cache in nginx is not caching the same page for all users

I'm using Ubuntu 14.04 server, and I just found out that fastcgi cache is not caching the same page for everybody. I thought it did. I ran some new PHP GeoIp code that displays the user's country name,...
0
votes
0answers
18 views

how can I configure server for dns cache for my ISP

I want to configure server for public users to use my dns sever and my server can cache all ip and domain name to better responsibilies
0
votes
0answers
15 views

Write data to USB flash drive directly (write-around)

is it possible to enable writing data directly to flash drive only when it have defined by me in udev-rules by ATTRS{idVendor}? I made rule for this flash in /etc/udev/rules.d/: KERNEL=="sd?[0-9]", ...
0
votes
0answers
19 views

squid server configuration issue

I installed the squid3 cache server in Ubuntu sucessfully and I configured squid.conffile (http access allow) and made http proxy ip changes in Firefox browser. Whenever I try to access something in ...
0
votes
0answers
35 views

squid cache not working properly

I installed the squid3 cache server in Ubuntu sucessfully and I configured squid.conffile (http access allow) and made http proxy ip changes in Firefox browser. Whenever I try to access something in ...
0
votes
0answers
15 views

squid caching problem

I installed the squid3 cache server in ubuntu sucessfully and i configured squid.conf file ("http access allow") and made http proxy ip changes in firefox browser. When ever i tried to access some ...
0
votes
0answers
12 views

Cache files from a Windows share

Is there a option to cache files from a Windows share? Branch Cache for Linux/Ubuntu? I would think the best option would be in Samba, but I can't find anything. The Windows Sever would be in the ...
0
votes
0answers
27 views

How to fix init system

I would like to know how to fix systemd when it gives me an error at boot time (such as the welcome to emergency mode error). I've had that problem before and I had to reinstall Ubuntu. I heard from ...
0
votes
0answers
31 views

video caching server

I am willing to configure any open access video caching server that will be placed at the main server of an organization and which does not demand client to change network setings(http proxy) in their ...
0
votes
0answers
48 views

Drop cache pages and memory (cleaning the cache) as normal user

Some times I need to clean the system cache by doing the steps below: sync su echo 3 > /proc/sys/vm/drop_caches as you can see, I need root privileges for this purpose. Is there any way to do ...
0
votes
0answers
50 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
0answers
117 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
48 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 ...
0
votes
0answers
117 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 ...
0
votes
0answers
12 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 ...