Questions tagged [cache]

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).

Filter by
Sorted by
Tagged with
241 votes
10 answers
353k views

Refresh Icon Cache Without Rebooting

Normally, to refresh the icon cache in Windows, we have to reboot. Is there a way to refresh the icon cache in Windows 7/8 without rebooting?
Elmo's user avatar
  • 14.7k
14 votes
5 answers
13k views

How to stop ReadyBoost from rebuilding cache after every restart on SD cards and flash drives?

On my computers (running windows 7 and vista and using SD cards and flash drives) ReadyBoost rebuilds cache after every reboot. Because of this and 5400RPM HDD, it takes several minutes for computer ...
AndrejaKo's user avatar
  • 17.1k
67 votes
10 answers
166k views

How can I use my small SSD as a cache for a larger hard disk?

I would like to use a (small) SSD disk as a cache for a large hard disk. I realize there are hardware-based products that do this: HighPoint RocketHybrid HBA, Intel SmartResponse and others. There is ...
haimg's user avatar
  • 22.5k
5 votes
4 answers
12k views

Why are multiple levels of caches used in modern CPUs?

I recently read about processors (mainly multi-processor) and I came across the concept of multi-level caches. These designs have several levels of cache in this case to increase the performance. I ...
Ant's's user avatar
  • 1,356
11 votes
5 answers
46k views

No Accelerate button/tab on Intel Rapid Storage window

I have an ASUS P8Z68 motherboard with a Corsair SSD as my primary boot drive. I have a TB standard hard drive as a secondary data drive. I am attempting to use an older Intel SSD as a cache on the ...
Brad Patton's user avatar
  • 10.6k
52 votes
1 answer
38k views

How to clear Chocolatey cache in the free version?

Installation-file-cleaning is currently only available in the licensed edition of Chocolatey ($96 a year) and the developers seemingly have no plans to offer cache-cleaning support for the free ...
user198350's user avatar
  • 4,019
39 votes
3 answers
31k views

Manually flushing write cache on Windows

On *nix systems, a user can use the sync command to force any pending writes in the kernel's disk cache to be flushed to disk. Does Windows have a similar command?
Mark's user avatar
  • 1,520
13 votes
4 answers
16k views

What does "Write cache buffer flushing" mean

As in the Windows 7 Disk Policy Options: [x] Enable Write Caching on the device [ ] Turn off Windows write-cache buffer flushing on the device Is the first the cache on the physical disk, and the ...
peterchen's user avatar
  • 1,724
7 votes
4 answers
28k views

How to clear Windows File Cache?

For testing purposed I need to clear file cache (for example to measure file operation performance). I found CacheSet from sysinternals, but pressing Clear there doesn't help. A file that I just ...
Maksee's user avatar
  • 433
4 votes
2 answers
14k 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 ...
Yuriy's user avatar
  • 181
28 votes
2 answers
40k 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 works by reading Microsoft white papers, etc. However, there are relatively few documents that describe real-world performance issues (...
user22667's user avatar
  • 289
20 votes
2 answers
262k views

How do I clear the Recent Documents list in Windows 7? [duplicate]

Possible Duplicate: Clear cache/history in Windows 7? How do I remove the list of recent files in Windows 7? Are those files stored anywhere else?
user avatar
15 votes
5 answers
137k views

Why does remote desktop not work for me by computer name, and only by IP?

I have a computer at work that I can only connect to remotely when using the computer's IP address and not when using the computer's name. I can see my computer name is set up correctly as "JoshPC" (...
Josh Comley's user avatar
  • 4,102
14 votes
3 answers
54k 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 ...
Howdy_McGee's user avatar
13 votes
4 answers
5k views

To what extent is size a factor in SSD performance?

To what extent is the size of an SSD a factor in its performance? In my mind, correct me if I'm wrong, a bigger SSD should be, everything else being equal, faster than a smaller one. A bigger SSD ...
artif's user avatar
  • 281
12 votes
4 answers
22k views

Disable linux read and write file cache on partition

How do i disable the linux file cache on a xfs partition (both read an write). We have a xfs partition over a hardware RAID that stores our RAW HD Video. Most of the shoots are 50-300gb each so the ...
complistic's user avatar
12 votes
3 answers
88k views

How to Move Offline Files Cache in Windows 7?

On Vista systems, I've been using these instructions to relocate the "Offline Files Cache" from its default location of c:\csc. Works great. However, these instructions do not work on Windows 7. ...
Portman's user avatar
  • 1,240
6 votes
1 answer
47k views

How do I clear the cache / history in Windows 7?

In Windows XP there was an option off the task bar properties to clear all recently accessed webpages, recent file lists, ie. cache, temp files and so on; is there an equivalent for Windows 7?
user avatar
5 votes
1 answer
1k views

Can I use Intel RST caching on another (i.e. non-OS) hard drive?

Is it possible to cache a (non-OS) HDD with an SSD in RST? I used RST to create a regular RAID volume of 128GB (I had to put the SSD and the HDD in RAID because RST requires it). I want to configure ...
user181991's user avatar
5 votes
2 answers
17k views

How can I delete the thumbnail cache?

I would be very thankful for advice on how to delete the thumb cache files in Windows Vista without a reboot. They are stored in this folder: \Users\%username%\AppData\Local\Microsoft\Windows\...
user avatar
1 vote
3 answers
199 views

Clear recent created file names in WinSCP

I would like to know how to clear recent created file names that appearing in the dialogue box when creating a new file: I tried a lot without success
Jameel Kalwan's user avatar
0 votes
1 answer
675 views

What is CPU Cache used for?

I know that Cache is working memory that is faster than RAM, but in my system there is only 3MB of it, and most programs will require more working memory than 3MB. So that makes me question what ...
user3891149's user avatar
49 votes
4 answers
81k views

How to clear Chrome/Chromium Edge Service Worker cache?

Note that this is NOT the Cache folder. It's the Cache of Service Worker, the path should be AppData\Local\Microsoft\Edge\User Data\Default\Service Worker. Recently I noticed my hard drive is almost ...
Luke Vo's user avatar
  • 1,603
37 votes
2 answers
60k views

How can I determine the current size of the ARC in ZFS, and how does the ARC relate to free or cache memory?

ZFS uses an ARC (adaptive replacement cache) which is not accounted for in the traditional Linux "cache" memory usage. How can I determine the current size as well as size boundaries of the ZFS ARC, ...
user's user avatar
  • 29.9k
36 votes
3 answers
140k views

How often does the DNS cache clear?

How often does the DNS cache clear on a Windows 7 machine?
Harry's user avatar
  • 463
32 votes
9 answers
51k views

How to clear cached redirects in Chrome

How do you clear cached redirects in Chrome? I changed the DNS for a domain name and when I go to mydomain.com. Even though ping mydomain.com now shows it resolves to the correct IP, if I type in "...
Cerin's user avatar
  • 9,142
22 votes
6 answers
6k 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 ...
Ziggy's user avatar
  • 906
19 votes
3 answers
65k views

How to increase the disk cache of Windows 7

Under Windows 7 (64 bit), I'm reading through 9000 moderately sized files. In total, there is more than 200 MB of data. Using Java (JDK 1.6.21) I'm iterating over the files. The first 1400 or so go ...
user avatar
15 votes
4 answers
40k views

What is the difference between a cache and a buffer?

Is saying a cache is a special kind of buffer correct? They both perform similar functions, but is there some underlying difference that I am missing?
Dharini Chandrasekaran's user avatar
14 votes
2 answers
28k views

L2 and L3 Cache Difference?

While I understand that the computer cache is: A CPU cache is a cache used by the central processing unit of a computer to reduce the average time to access memory. The cache is a smaller, faster ...
L84's user avatar
  • 3,871
13 votes
6 answers
54k views

Windows 7 kills VMWare performance by disk caching?

We're running Windows 7 Enterprise 64-bit SP1 on Dell Precision T3500's (Xeon E5630 @ 2.53GHz, 4GB of RAM). On top of this is VMWare Workstation 7.1.4, up to date. Running in a VM is Windows XP ...
qid's user avatar
  • 281
12 votes
2 answers
3k views

IrfanView replaced my Settings' and Your Phone's icon

I have nearly brand new Windows 10 1903. A day after installing it from scratch, I have installed Irfan View as well. Another day later I have realised that it has (?) replaced my Settings' icon: ...
trejder's user avatar
  • 11.2k
11 votes
2 answers
11k views

Disk Write Cache Feature and Limited RAM Usage with Windows 10 Pro - 256GB DDR4

I have a Windows 10 Professional workstation I use to simulate material flow in impressions. The FEA software I use creates large 50-100GB database files for each simulation I run. Copying these files ...
GHTurbines's user avatar
11 votes
4 answers
40k views

Turn off Linux file cache

How do I turn off write cache in Linux? More specifically, SUSE 11? My problem is that heavy I/O kills the system even if the generating process is a user priority class, and the starved processes ...
n-alexander's user avatar
9 votes
5 answers
21k views

Clear Windows "Run" box cache

One thing that I use almost every minute is the Windows Run box (WINDOWS+R). It let's you type a path and auto-completes it really quickly so that you can jump to any dir in no time. My problem is ...
Julian's user avatar
  • 369
9 votes
4 answers
55k views

How could I limit or even disable file cache on Windows Server 2008R2?

There is a machine, with a very fast RAID array, and a fast internet connection. But, it only got 8gb of mem, which runs out really quick, when the upload goes up. Any ideas how could I disable, or ...
Apache's user avatar
  • 16.2k
8 votes
2 answers
6k views

Windows: Disable caching of large files

I am currently dealing with very large video files, including de/encoding them and copying them around etc. To my surprise Windows attempts to cache these video files, even though there is no point ...
robert's user avatar
  • 290
7 votes
2 answers
4k views

Possible to force all disk activity to RAM?

I want to tell the operating system to stop using my hard disk and only use RAM as a cache instead. Optimally, I want to tell Windows to: a) pre-cache executable images and necessary bootstrap data ...
htalvitie's user avatar
  • 115
6 votes
2 answers
1k views

How can I keep a file in Windows 7's cache?

Sometimes you know better than Windows what files will be re-used later. Suppose you have 8GB of memory, and you use the same 1GB file every hour in an I/O-bound application (which takes 1 second to ...
netvope's user avatar
  • 5,325
5 votes
1 answer
11k views

Is there fusion drive style solution there for Linux and Windows?

Is there fusion drive style (like in iMac where the SSD acts as storage space rather than cache) solution there for Linux and Windows?
gjone's user avatar
  • 119
5 votes
1 answer
14k views

Where does the Squid proxy stores its cache files?

Imagine that I have hosted a web server. And to speed up things I have used an http caching proxy called Squid. Where actually squid stores its cache files and how long will it remain there? I am on a ...
Anandu M Das's user avatar
4 votes
1 answer
10k views

"Acceleration" not available in Intel SRT menu

I have an Asus Z68 Motherboard on an existing system running Windows 7 x64. I now want to install an OCZ Agility 3 SSD to make use of the Intel Smart Response Technology. Apparently, it's not an easy ...
lpd's user avatar
  • 83
4 votes
1 answer
3k views

Write caching causes slower performance?

USB 2.0 External WD 2TB Elements HD. Connected to Windows XP SP3 machine, write caching disabled by default. Worked fine. Since it is intended to be a permanent fixture (never removed), and on a UPS ...
user avatar
2 votes
2 answers
3k views

How to keep yum cache from filling back up

I have a RHEL system whose disk keeps filling up. The problem is /var/cache/yum. I have read Can we clean yum cache files manually? and I know that sometimes you have to, like it says, clear out /var/...
Steve Summit's user avatar
2 votes
1 answer
2k views

How to play .qtch files?

So I have qtch files that apparently were created with QT 7+ because they can't be played (with QT 7+ or VLC) just by renaming their extension (as fileinfo.com says). Any solution out there ?
WaterBearer's user avatar
2 votes
2 answers
4k views

What is the cause and disadvantages of high memory usage as time passes on Windows 8.1? [duplicate]

My laptop is used in long time intervals without restarting. The OS tends to use extensive memory (~8GB) as time passes. Below are screenshots of two different states with exactly the same programs ...
Varaquilex's user avatar
  • 3,866
2 votes
2 answers
12k views

Too much RAM "in cache"

I am having the following problem: I am having a completely new Notebook with 8 GB RAM and Windows 8. I do not use software that requires a lot of RAM and I do not have a thousand programs running. ...
Xin Wang's user avatar
  • 155
2 votes
2 answers
15k views

VLC 2.1.5 - unable to find file caching values in preferences

I'm having some lag when playing videos over my network with VLC 2.1.5. I have plenty of bandwidth. I read that I should increase the caching values under Input/Codecs-Access modules-File, but the ...
Paul Lombardi's user avatar
2 votes
2 answers
2k views

What is "Intel Flash Cache" and when should it be used?

If it make a difference I am running VISTA 32 bit. I just found that I need to search for "Turbo Memory Module", on google to get prices etc. Is it faster then a SD flash card? (Given it costs more ...
Ian Ringrose's user avatar
  • 1,341
2 votes
2 answers
1k views

What does "address resolution at the byte level" mean?

Here is the problem I am working on The Problem :A high speed workstation has 64 bit words and 64 bit addresses with address resolution at the byte level. How many words can in be in the address ...
committedandroider's user avatar