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Questions tagged [caching]

Caching is the local storage of network data for re-use, to cut down on transfer time for future requests.

Caching is the local storage of network data for re-use, to cut down on transfer time for future requests. With Web pages, static caching simply serves objects -- typically images, JavaScript, stylesheets -- as long as they haven't passed their expiration date. But static caching can generally only be used for about 30 percent of HTTP requests, and that does not typically include high-value dynamic data.

Dynamic caching completely changes the caching model, making it possible to cache a much broader variety of content including highly dynamic Web pages, query responses, and XML objects.

Source:F5

16 questions
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Got a new SSD, don't want to wear it out but I still want to use some of it to store data files together with the old HDD

I bought a new 250GB Samsung 850 EVO SSD for my laptop that I want to use as primary storage device, together with the old but still functioning 250GB 7500 RPM HDD that I put in the former DVD bay with an adapter caddy. Right now the HDD has only…
Fabio A.
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How to disable the disk write cache in Ubuntu 13.10?

Based on this answer I used: sudo hdparm -W 0 /dev/sda to try and disable the write cache on my Ubuntu 13.10 box running on bare hardware. Additionally in /etc/hdparm.conf I also uncommented from the line #write_cache = off When I run: hdparm -i…
simgineer
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Clearing caches in ubuntu

I need to clear system cache in order to record the time taken by a postgres query in cold cache. For clearing the system cache I am executing the following commands as root on Ubuntu server 12.04: sync; echo 1 > /proc/sys/vm/drop_caches sync; echo…
Rose Beck
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2 answers

On Ubuntu 12.04.2, what happens if I disable dnsmasq?

I am using Ubuntu 12.04.2 LTS. If I issue the following command sudo gedit /etc/NetworkManager/NetworkManager.conf and change the line dns=dnsmasq to #dns=dnsmasq What will happen? Will I disable or enable DNS caching? Additional notes: I have…
n00b
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Can I setup ubuntu to use more ram, currently having 12GB of ram?

On windows machine which I use for development purpose, I did use some software like primocache which cache the disk and the files are loaded from ram (if I setup the drive). This way my program is loading in second and things going a little…
Anirudha Gupta
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I was installing ubuntu and this happened

I'm installing ubuntu into an old computer. Everything was going great, I was in the installination phase, I got to the part where it asked me for what I would like to name this computer and then this came up. I don't know a lot about computers,…
Leslie K
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Ubuntu 14.10 -TPM error(7) occured

Ubuntu 14.10 no caching page found on all hard drives 2 sata and two IDE also same if I mount avusb drive. After upgraded from 14.04.1 and also from a clean install of 14.10 During boot I get error on all hard drives no caching page found. I never…
Ant Jackson
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0
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2 answers

Instal memcached with php7

How can I install memcached from php.net and work it with php7+? I tried a couple of tutorials from other sites (I do not remember now) but it does not work. Can anyone help me to do this, I am quite new with Ubuntu and web development, so anything…
googol8080
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Can I configure dm-cache to only cache small files?

We're deploying an Active Directory domain controller slash file server in a small NGO, using Ubuntu Server/Samba and a conventional HDD, due to budgetary concerns. I'm concerned about the dismal random 4K access rate of conventional spinning drives…
MrValueType
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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 WordPress. I tried to install Varnish, but I would not…
Web Siena
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Ubuntu 14.10 no caching page found on all hard drives

Ubuntu 14.10 no caching page found on all hard drives 2 sata and two ide also same if I mount avusb drive After upgraded from 14.04.1 and also from a clean install of 14.10 During boot I get error on all hard drives no caching page found. I never…
Ant Jackson
  • 11
0
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2 answers

Using BIND9 as a Caching Server, is there a way to set the expiration of the cached items/names?

My BIND9 is currently running fine but is there a way to set the expiration time/date of the cached names? If so, how? Thanks in advance guys
Abel Melquiades Callejo
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Server to cache HTTP data

I'm looking for software for ubuntu where I can place my ubuntu server on my network in such a way that at the very least all HTTP traffic is filtered through the ubuntu server. This way, I can make the software cache data HTTP data. Basically I…
user13491
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Should an old-age-failing caching SSD work as swap?

I have an old ThinkPad E540 that suddenly shut down on Windows 7 in the fall of 2019. The 1TB HDD reported a fault and the laptop immediately shut down allowing me to later retrieve the data with a live Ubuntu usb. Quite a useful feature from…
MostlyRational
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lvchange -ay on a lvmcached logical volume memory leak Ubuntu 22.04

Ubuntu 22.04, I configured SSD cached LVs using lvmcache (type writecache) following lvmcache man page. The system boots fine but the cached LVs status is always NOT available. LV Path /dev/vg_fast3/disk3_lv LV Name …
shog7eam
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