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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).

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Client w/ SSD; server w/ HDD; SMB shares and offline files performance hit: Group Policy fix?

I have a SSD (Samsung 960 EVO; write speed 1500MB/s) in my client system. One of my folders ("Downloads") is on located HDD-based NAS (write speed 10MB/s): downloading and extracting files in this ...
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1answer
27 views

Is there a performance gain for running a web browser and/or swap from SSD?

What's the bird's eye view of running a specific application from an SSD for improved i/o in comparison to a standard hard drive? Would this help with browser speed? The list of applications which ...
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1answer
473 views

How to open Edge's temp folder?

Does anyone know how to open Microsoft Edge temp folder or where it’s located? I can’t seem to find or open it.
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26 views

denied rodc password replication group, screen splashes when login

I am trying to login in my domain using the users screen in ubuntu. After entring username it asks for password then it splashes and again go back to users option in thee lock screen menu. smb.conf ...
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35 views

So big cache files take up so much space on my C disk, which ones I can delete?

Today I used the Dism++ x64 scan my computer, and found many large cache folders, mainly: Package Cache Folder - 6.74G NET assembly cache(by dpzjsy) - 4.09G New visual studio installation source ...
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14 views

Evince and large thumbnails in Ubuntu 16.04

What are the policies of the Document Viewer (Evince) for creating large thumbnails in .cache/thumbnails/large/? Does Evince create a new large thumbnail in this folder whenever a new file is opened? ...
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47 views

Outlook 2016 crashes on start while trying to access StaticCache.dat - how do I fix?

Outlook 2016 has started crashing on startup while trying to access a file called StaticCache.dat. I am assuming it is a corrupt cache file. Outlook will run in safe more, but eventually crashes ...
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1answer
42 views

Is my L3 cache really slower than my DRAM?

I've recently been running a memtest86 on my PC (Threadripper 1920x, Kingston ECC DDR4-2666 CAS19) because I suspected that the stock timings were conservative. And I was right: the memory will run at ...
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1answer
54 views

How to save login and password in Firefox, when website has not remeber credentials feature?

I use the website on daily basis and it does not have "save login and password" feature. I don't use Firefox's password manager. Is it possible to bypass login page, to save the cache, where the ...
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26 views

Getting neomutt to download all headers and messages

By setting the variables header_cache and message_cachedir, you can make neomutt cache messages headers and even the message bodies. This allows way quicker searching among other benefits. The ...
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2answers
4k views

Blue arrows on icons won't disappear even when I refresh icon cache

I have some blue arrows on the upper corners of some files on my C drive, mostly on photos, documents and text files. my shortcuts do not have the arrows. screenshot below. I've refreshed my icon ...
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1answer
57 views

Windows 10 keeps loading thumbnails like if cache doesn't work

Windows 10 keeps loading thumbnails like if cache doesn't work Here is quick e.g. video: https://streamable.com/7n78n I tried many things. Unchecked in explorer folder settings to never show ...
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70 views

How to make a proxy cache open several connections?

I've installed a proxy cache based on https://github.com/bntjah/lancache . Some things are different in my setup, i'm using a second server for DNS which is using DNSmasq. The problem is, that non-...
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1answer
29 views

Iterative DNS query faster than recursive query due to more entries cached in Iterative DNS query

In an iterative DNS query, requests made by the local DNS server to the root, TLD and authoritative servers can be cached inside the local DNS. Whereas in the recursive query, only the specific ...
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1answer
74 views

How to buffer writes to an External Drive using an Internal SSD

This question is a bit of an odd one, I'll try to be as detailed as I can be. I'm repurposing an old computer to serve as an in home backup solution. The final resting place for the data is an ...
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91 views

No client-side caching in headless Chrome with proxy-server?

(I think this has more to do with software configuration than programming which is why I posted here instead of StackOverflow.) I've been testing and searching for a couple days it seems on this ...
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0answers
14 views

Internal SDD folder as cache for external drive folder [closed]

I am using windows-10 on a laptop with SSD internal drive. I have an external USB 3 SSD drive that operates through a SATA to USB3 adpater. I use it to store my virtual machine disk images amongst ...
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1answer
235 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 ...
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25 views

Is fifo pipe size limited by disk cache allocated space?

On Linux CentOS 7 I am using named fifo pipes created with mkfifo to handle data passing between pairs of processes running on a multiprocessor disk server (Dell R730xd with 132GB RAM and 20TB RAID ...
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136 views

BTRFS RAID5 disk failed while balancing

If you clicked on the link to this topic: Thank you! I have the following setup: 6x 500GB HDD-Drives1x 32GB NVME-SSD (Intel Optane) I used bcache to setup up the SSD as caching device and all ...
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1answer
63 views

Bind9 DNS flavors

I'm trying to understand how you would use a "Bind9 DNS linux server" in the real world. I have read that there are different "flavors" of DNS servers; authoritative-only server, caching, and ...
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1answer
41 views

Is there any app that show to me CPU informations? [closed]

I would like to understand from some PCs I have which kind of CPU details it got, such as how many register (XMM? 16?), which and how cache, speed, and so on. Is there such an application? Or for ...
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1answer
162 views

Chrome DNS cache has negative TTL and expires just after a minute

There is a similar question here, Why does Chrome have TTL -1000 in the DNS Cache? but it has not answer either. When I visit, chrome://net-internals/#dns I see a lot of DNS cache with -1000 value. ...
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1answer
97 views

How is the micro-op cache tagged?

According to Real World Technologies’ article on “Intel’s Sandy Bridge Microarchitecture”: “Sandy Bridge’s uop cache is organized into 32 sets and 8 ways, with 6 uops per line, for a total of 1.5K ...
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1answer
74 views

Windows WriteFile performance (SSD vs HDD)?

This question is tied to the following observation: https://social.technet.microsoft.com/Forums/exchange/en-US/09dd046e-8127-4550-8e26-5fba7a5a0743/performance-flaw-in-file-system-decreases-writefile-...
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1answer
191 views

lvmcache: failed to connect to lvmetad on Debian Stretch during boot

I have a freshly set up HP Microserver with Debian Stretch. I set up a RAID5 with LVM on top and built an lvmcache. home is a symlink pointing to a directory on that LVM. Its mounted via /etc/fstab (...
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1answer
61 views

ReadyBoost - Dedicated 128Gb microSD with adapter - Cache configuration loops forever

ReadyBoost cache configuration keeps going forever What I am trying to do: Dedicate to ReadyBoost a 128Gb microSD loaded in its SD adapter. MicroSD is TOP speed and unformatted I only defined a ...
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0answers
37 views

How do disparate drive sizes work with tiered storage spaces

I (believe) I understand simple Storage Spaces scenarios reasonably well, but I can't seem to find good information about how it all works when you involve a cache tier. To create a 2 column mirror, ...
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1answer
21 views

Do I need the cache directories from old versions of IntelliJ IDEA?

These folders are taking up a fair amount of disk space so I'd like to get rid of them if possible. I'm using version 2018.2 at the moment so I'll keep hold of that one. These folders shouldn't have ...
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1answer
400 views

Moving the Google Chrome cache directory onto RAM disk automatically at boot in Linux

OS: Linux Mint 19 Cinnamon 64-bit. I know how to create a RAM disk (tmpfs), actually I have it mounted in /etc/fstab like so: none /ramdisk tmpfs size=2G,mode=0777 0 0 As you can see,...
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2answers
131 views

How to programmatically clear buffers and caches in Windows

I need to ensure that neither buffers nor caches are being employed before benchmarking the speeds that some bash commands run at in a Cygwin environment. Although I'm doing the benchmarking in Cygwin/...
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43 views

Find out what is being cached in memory by Windows

Windows maintains a memory cache of frequently accessed items: Is it possible to view the cache? Can I see what files and what portion of each file are being cached?
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2answers
209 views

Why does my Linux system stutter unless I continuously drop caches?

Over the past few months, I've had an extremely irritating problem with my Linux system: it stutters on Firefox audio playback, mouse movement, etc., with a tiny sub-second (but still noticeable) ...
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305 views

backup and sync google drive cache location

How can I find cache folder for back up and sync on my PC? it does not delete cache files automatically and I have to delete it manually. help plesae
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45 views

How to make ccache with CONFIG_GCC_PLUGINS=y work as well as when it is unset, while compiling kernel?

I'm trying to compile a Qubes OS VM kernel which has the following .config options set: CONFIG_GCC_PLUGINS=y CONFIG_GCC_PLUGIN_LATENT_ENTROPY=y CONFIG_GCC_PLUGIN_STRUCTLEAK=y I am on a Fedora 28 ...
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33 views

Cached website view with no cache?

I have a user that has a cached view of a website (about 2 weeks old) however this is the same on all browsers. Troubleshooting steps: Tried on multiple browsers. Deleted local cache. Deleted cache ...
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0answers
20 views

Cache won't clear

I work as a web designer and I'm having an issue with Caching on my computer that happens when I visit a newly created domain before setting up any content, which I assume is when it caches. Then once ...
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483 views

ping hostname resolves to wrong ip

If I ping a server by the hostname from the command prompt, I get the wrong IP address. The IP address returned used to be the IP, but not anymore. How do I flush the cache? It is not the "ipconfig /...
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1answer
57 views

How to delete a specific item in Firefox cache?

I am asking a general question on whether there is a way to do it. However, the specific problem I am battling is that I went to http://foo.com and at the time the server was having problems and ...
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0answers
463 views

Force Firefox and Chrome to reload page including all graphics, even favicon

Using the latest Firefox and Chrome on macOS. I can refresh a page using ⌘+R. This doesn't reload any images if the browser thinks its cached version is still OK (even if it isn't). I can ...
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0answers
31 views

How to know the cache replacement policy of my computer's cpu

How to know the cache replacement policy of my computer's cpu?LRU or FIFO or Random? this is my laptop's processor:Intel(R) Core(TM) i3-4030U CPU @ 1.90GHz. Is there having some command to know that?
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0answers
184 views

Java application response is slow if Linux cache consumes entire system free memory

I am running two Java-based application on my server with 32GB of RAM,16 core CPU. Apart from this I just have MySQL community server 5.6.16. The Java applications are assigned 10 GB of overall memory....
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1answer
115 views

Configuring Varnish as a permanent persistant storage caching

Currently we have a static storage for our web app, and since the data structure has been really flat; we are in the process of setting up a varnish on the new storage set-up so that it fetches the ...
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1answer
1k views

Seeing 'not allowed to load local resource' when running chrome://cache or chrome://view-http-cache

Would anyone know why I'm getting that message for the URLs above? Every other chrome URL I've tried (chrome://history, settings...) works fine, but the cache ones suddenly do not. They worked for ...
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1answer
119 views

How to secure OneNote cache ( having sensitive information)

I am using Boxcryptor to encrypt the entire OneDrive folder by saving OneNote 2016 files to my PC in an Encrypted OneDrive Folder, which automatically gets synchronized with OneDrive. To make this ...
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1answer
35 views

Why RAM is less than L2 cache on AM335x? [closed]

On the AM335x device, the L2 cache size is 256KB, but the RAM size is 64K. i.e. the size of RAM is actually less than the L2 cache. I want to understand why it is so. Maybe only the designers at TI ...
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1answer
65 views

Motherboard-CPU compatibility dilemma?

I noticed a discrepancy on Asus motherboard-CPU compatibility page. Where the CPU cache is listed, sometimes it appears as half of the real value or a third of it. For example this Athlon IIX3 405e(...
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3answers
88 views

Do process switch between different cores?

Will a process switch between different cores to increase performance? If the process does jump between cores, which components are shared across cores? L1-L3 cache, registers or memory?
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0answers
765 views

How to view and read cached page

I am wondering if there is a way to view a cached page from my insurance benefits. Long story short, they are telling me that my kids were never on the plan, I am certain they were. I viewed my ...
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1answer
465 views

Can't make LVM Cache to be persistent after system reboot

I've got LVM logical volume on top of MDADM RAID1 setup. I'm trying to add SSD device as Cache to this logical volume via: vgextend dataVG /dev/sdd lvcreate --type cache --cachemode writethrough -L ...