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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Cached Remote Filesystem mount? [duplicate]

Possible Duplicate: How can I cache NFS shares on a local disk? I have a large directory of pictures on a Debian server that I'd like to frequently access and update on my Ubuntu (Maverick) ...
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2answers
822 views

Get flash drive to cache disk reads to primary partition

Basically I'm looking for a way to mimic Windows' ReadyBoost. I asked this question on Unix.SE to get an idea of whether this was even possible and it seems like it is. Appparently there is a cachefs ...
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1k views

How can I change the cache mode of an USB drive?

I've installed ubuntu on a USB stick, which took about 2 hours. After booting from USB, the system was extreme slow, during write operations. The problem seems to be the cache mode [sda] Assuming ...
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2answers
10k views

How do I reset the thumbnail cache?

I have a lot of images on my laptop as I work in graphics. On the same system, I also have a folder containing my family pictures. I would like to do two things: Empty the already cached images ...
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3answers
9k views

What is safe to exclude for a full system backup?

I'm looking for a list which paths/files are safe to exclude for a full system/home backup. Considering that I have a list of installed packages. /home/*/.thumbnails /home/*/.cache ...
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2answers
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Can I use all my RAM for application data?

I have yet another question about "where is my Linux memory" Question goes: can I use cache for application data? On my laptop I have 1GB ram. Situation after some time of work: browser takes 400MB ...
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6answers
31k 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 ...
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3answers
960 views

Would there be any negative side-effects of sharing /var/cache/apt/ between two systems?

In the interest of conserving bandwidth, I'm considering mounting a VirtualBox host's /var/cache/apt as /var/cache/apt in the guest. Both host and guest are Ubuntu 10.10 32-bit. Would there be any ...
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How can I disable the prefetch cache?

I run a few Ubuntu servers that have a load of django sites running on them. The sites and the httpd start at boot and after that (apart from me SSHing in to update it or using bzr to update websites) ...
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2answers
578 views

How to recreate cache for “APTonCD” after cleaning cache through apt-get clean?

I recently had to opt for cleaning my cache through apt-get clean after getting lots of GPG errors during update. But it's created another problem for me since I want to create an "APTonCD" for ...
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1answer
574 views

What do these apt commands do?

What do these commands do? Acquire::http::No-Cache=True -o Acquire::BrokenProxy=true update Acquire::http::Max-Age "0"
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How to clean caches in my homedir

My home directory is getting huge (100GB plus). When backupping it I notices that there are quite some caches there. Which important caches are there in my homedir and how should I clean them? One ...