An intermediate data storage area with high performance but limited capacity. The term "cache" can refer to hardware cache (on a processor) or software cache (which stores commonly used values in a computer's memory).

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237 views

ECC on harddisks

I have completely re-written my post here as I noticed I was a bit unclear before. In an older post the user sawdust explained very well that there is an SRAM buffer on the HDD controller which uses ...
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1answer
938 views

Accelerate tab missing after reinstall

I had SSD caching enabled and working without problems, but I had to reinstall my Windows 8 and now can't reenable it, because the tab is missing. I have read many similar threads and tried all ...
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1answer
986 views

which of the following memory has the shortest access time?

which of the following memory has the shortest access time? Virtual memory Cache memory External memory Register When I try to select the correct answer, I feel like it must be cache memory ...
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1answer
40 views

Is it possible to disable implicit connection cache while using connection pooling in Oracle OAS?

Hi we are using implicit connection cache under Oracle Application Server (http://www.oracle.com/technetwork/topics/oc4j-ds-083633.html). I am not a system guy, I am just a programmer but I just ...
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1answer
6k views

What is app cache in android? [closed]

What is the cache used for in android? Will clearing it cause loss of data?
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4answers
762 views

Firefox changing tabs is slow

How can I diagnose the problem behind the delay I get when changing tabs in Firefox? It is up to about 1.5 seconds. To provide some background, I use three monitors and often have three Firefox ...
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0answers
160 views

memcached issue on multi-core windows server with virtualization

i am having an issue running memcached (v1.4.4) on multiple cores. Here's my environment: Windows Server 2008 R2 SP1 running VMware, Intel Processor, only one core (out of eight) is enabled for the ...
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1answer
68 views

Windows XP - what is the best way of implementing a file cache on a shared internet connection

In the early days when we were on dialup, in order to share the internet connection we ran a program called Wingate on the PC that acted as a gateway, and on all the clients. Wingate had a file cache ...
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1answer
396 views

Keep GnuPG credentials cached for entire user session

GnuPG can, with gpg-agent, cache access to a private key. How can I keep that cache active for the entire user session? When I unlock the key for gpg-agent, it only stays cached for a limited time. ...
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2answers
3k views

Why doesn't “ipconfig /flushdns” completely wipe your DNS?

I've consistently had a problem where "ipconfig /flushdns" + restarting computer doesn't get rid of all the DNS records. Should it completely flush any and all records in DNS? Why doesn't it usually ...
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2answers
5k views

When streaming a song, in what folder does the song get saved?

When streaming a song, the song is downloaded and placed into a temporary folder on the computer, that much I know. However, while streaming the media file – mostly from Pandora – I have been ...
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1answer
148 views

Does Chrome reloadButton ignores the cache?

I am using Chrome and monitoring the http connections. I load a page and the response returned by the server contains Cache-Control: max-age=86400 Expires: Thu, 18 Jul 2013 14:51:22 GMT Therefore, ...
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1answer
374 views

How to crawl your own website to save to cache

I'm using Squid, a caching program, to cache my website. However to do so it appears that each page has to be accessed at least once before Squid can cache it. My question is, is there a program which ...
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0answers
232 views

Setting up mSSD caching on Acer M3-581TG

Apparently the Acer M3-581TG supports some kind of caching using its 20GB internal SSD. I reformatted the hard drive to get rid of all the crapware it came with, and I can't seem to get this feature ...
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1answer
53 views

“Who” decides whether to use a webpage from cache or from the server?

When browsing to a website, "who" makes makes the choice of determining whether to pull a webpage from the local cache or from the server? Is it the browser? Web server? Webpage-specific coding? How ...
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1answer
198 views

How can you tell when the browser is retrieving from a cache?

Is it possible to tell when a browser is retrieving a page from a cache? I've thought that opening a new tab and directly browsing to the URL would make a fresh pull request from the server, but ...
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2answers
843 views

disk write cache buffer and separate power supply

Windows has a setting to turn off the write-cache buffer (see image) Turn off Windows write-cache buffer flushing on the device To prevent data loss, do not select this check box unless the ...
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2answers
793 views

Mac OS X Finder: Folder Color Labels are not staying across computers on connected to SAN

I'm trying to label certain folders on a SAN drive, however certain computers can see these colors and others cannot. I'm curious if there's a way to clear the finder cache for the color labels, as ...
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1answer
215 views

Making TT-RSS cache images

Due to Google Reader's untimely demise, I've installed tiny-tiny RSS on my Linux machine under Apache 2. It's mostly a good enough replacement and I can at least go back to reading RSS feeds in my web ...
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1answer
53 views

Is it a big downside for a cpu to not report the L1 Cache?

I am reading information for a processorAMD FX-8320 Eight-Core My primary question is why the L1 cache is not in the information. Would this imply that it does not have registers that it can access ...
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1answer
271 views

Google Chrome cache - can I view images/snapshots of webpages?

I was working on WordPress writing up blogs, but unknown to me was the the WordPress server for my website was down. so I was essentially working into nothing, the blogs are lost, and the revised ...
3
votes
1answer
123 views

How much of a difference is my squid cache making?

I'm on an ADSL connection that has a bandwidth limit (I can download 100 gig per month). For a bit of a test I set up Squid as a transparent web proxy to capture all HTTP traffic and attempt to cache ...
3
votes
2answers
5k views

Intel Rapid Storage refuses to work (no button in SRT utility)

I've got a fresh Dell Inspiron 15R SE with pre-installed Windows 8, 1Tb HDD and 32Gb SSD on mSATA included by manufacturer specifically for caching purposes and advertised as such. The problem is that ...
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1answer
292 views

How to force a virtual machine to uncache windows domain credentials

I have a Windows 8 host (latest patches) in an AD domain. a windows 7 (latest patches) virtualbox VM also within the the same domain The issue is that I've been through 2 password change cycles ...
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1answer
307 views

How can I use SRT to cache a non boot hard drive?

In a comment on my answer to the question Making SSD & HDD work together like a hybrid I was informed that my statement that SRT can only cache a Windows boot drive is no longer valid. I have ...
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votes
3answers
553 views

Xeon vs overclocked i7 Extreme for lowest latency

I am aware that the differences between high-end i7 and Xeon are: compatibility with dual socket motherboards, total L2/L3 cache size. overclocking capability. extra cores - Haswell ...
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0answers
285 views

Unknown process using 50% of HDD periodically and slows down PC heavily

The PC is new, i3-3220 and with Windows 8 x64. Sometimes (couple days cycle) it starts crashing and slowing down instantly for no reason for like couple minutes. All programs stops, music stops ...
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1answer
67 views

Win7 makes my fat32 fs corrupt when i create some files in linux, in dual boot environment

all I setup a dual boot environment with linux 3.9.2 and win7. I used a fat32 partition to share some files between them. After booting into linux, create/delete some files and then switch back to ...
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1answer
38 views

clear md5 cache on Mac

I noticed that calculating the md5 sums, for large files, take much less time the second time you run the md5 command on them. Is there any way to clear the cache? I'm actually writing a parallel ...
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1answer
60 views

mod_deflate - possible to compress 1k or higher only? cache?

Is there a way to tell mod_deflate in .htaccess to only compress files if they are at least 1kb? Also, can it cache compression results? Once it compresses a file, I want it to use that again instead ...
2
votes
1answer
2k views

Should I format an SSD cache drive before reinstalling Windows 7?

I bought a laptop which has a 500gb hard drive, and a small SSD drive for caching (24gb). It runs Windows 7 64-bit. I would like to format the hard drive and reinstall windows. Should I also format ...
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0answers
133 views

Linux kernel 3.9 new storage features howto?

Linux kernel 3.9 has been released, which brings new features for storage cache devices (dm-cache), as well as BTRFS RAID 5/6. These features are undoubtedly sexy, but are all but completely ...
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1answer
37 views

Cache Organisation

Whats's the difference between Direct Mapping and Four-way Set Associative? They both mean that certain blocks of the cache are associated with certain parts of the main memory. The only difference ...
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1answer
5k views

RamMap “Empty standby list” drastically speeds up PC. Is there a better way to do this?

Many people are educated on how Windows Memory manager caching work by reading Microsoft white papers, etc. However, there are relatively few documents that describe real-world performance issues ...
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1answer
3k views

How many registers does Intel® Core™ i7-3770T Processor have?

I've been looking at this website: http://ark.intel.com/products/65525/Intel-Core-i7-3770T-Processor-8M-Cache-up-to-3_70-GHz But I can't figure out the number of registers.
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1answer
35 views

Bizarre domain/host file/browser issues. A real chin-scratcher

I was working on a dev site yesterday (of which I have a modified host file to view) when all of the sudden Chrome stopped being able to load the site. Or the production site (no host file mods ...
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1answer
151 views

How can I locally cache pictures from a web-page so it loads faster?

I am, on a nearly daily basis, accessing my companies staff directory that is hosted on our wiki. The "problem" (and I use the term loosely) is that when I load the page everybody has a picture ...
5
votes
3answers
784 views

Firefox says “server not found” because it's adding WWW. How do I stop this?

This is very frustrating. I have been accessing servername.local on Firefox. That's its URL. No www. At some time, servername.local ceased to be available and I got an error message: "Server not ...
2
votes
2answers
2k views

How can I clean HOME folder in linux?

There is a way to clean in a controlled way the $HOME folders than usually save cache files? E.g: I have a .config folder with more than 300MB. How can I clean it?. Is there a program that can be ...
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1answer
42 views

OS X is not refreshing my site properly

I admin a website for a student group here at my university, and I usually edit either with Dreamweaver (not in WYSIWYG mode, mind you) or by ssh-ing into the server and editing via nano. Just today, ...
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0answers
41 views

Stop certain websites from using local cache in Firefox

In Firefox you can limit the amount of data that's allowed to be stored in the local cache, or you can let Firefox manage it. Is there was a way to set it to not cache anything from certain sites - ...
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0answers
2k views

How To force firefox to store FLV files in %TEMP%\acro_rd_dir instead of Firefox cache?

I am using VideoCacheView to save videos that I have already watched, VideoCacheView saves FLV files from the folder %TEMP%\acro_rd_dir but sometimes, the embedded flash player does not save FLV files ...
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1answer
129 views

What happens to files when cache is cleared

Browser caches are just files, so clearing the cache of your browser is nothing more than deleting the files & skipping sending them to recycle bin first, correct? They would be completely ...
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2answers
119 views

Reducing cache waste in Windwows VMs

At Is there a way to reset Windows file cache? we learnt how to use RamMap to free up the all-you-can-eat Windows file cache, which was nice. Am I the only person to think that reducing cache sizes ...
2
votes
2answers
164 views

What cache makes a file search faster for the second time exactly?

On Windows on a HDD partition with Total Commander, if I make a file search on the file system root e.g. C:\, it will take considerable time: it display as it walks the entire directory structure ...
1
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3answers
138 views

Place entire folder tree into DDR's cache?

I was playing Starcraft 2 on my machine with 32GB RAM. I was thinking on how the game only ever maxes out at ~2GB, but it still has to load the different single player maps. I see the memory ...
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6answers
2k views

Can we run linux in something faster than RAM?

This is perhaps a silly question, and may be the result of a misunderstanding. I'm studying CPU's right now, and memory in particular. I was just reading about how much faster SRAM is than DRAM but ...
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2answers
378 views

Fancycache + HDD vs SSD

My girlfriend's three years old Sony Vaio laptop is getting really slow so I will perform a clean Win7 install on it in a couple of weeks. While at it, I'm considering getting her to upgrade a ...
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5answers
137 views

Are there CPUs with true shared memory? [closed]

I work on parallel algorithms and want to validate certain theoretic claims by runtime experiments. As it turns out, most (?) modern multicore CPUs use NUMA which inherently breaks many models to the ...
2
votes
0answers
2k views

Windows cache and temp on RAM disk

I have 16 GB of memory and have just started to experiment with having a 1 GB RAMdisk. Currently, I only have the browser cache there, but I am thinking of moving the Windows7 cache and temp ...