Questions tagged [prefetch]
The prefetch tag has no usage guidance.
18
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What is RAM prefetch, and how does it influence RAM performance?
I'm trying to understand RAM performance. I've seen this table on Wikipedia, and I understand what each column refers to, except the RAM chipset pre-fetch column. What does this refer to? And why when ...
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I'm unable to enumerate prefetchable endpoint devices behind a pci-e bridge
Here is my problem:
I'm unable to get BAR addressing from prefetchable end-point devices behind a pci-e bridge. Can anyone help me about that?
Here is what I did until now:
1- I'm able to get ...
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709
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Prefetch/Superfetch slows the system down. What can be the reason?
I have a Windows 7 x64 home premium (I do know about end of life)
Multiple disks and HDD as a system disk, non system SSD disk.
I disabled superfetch/prefetch during memory usage troubleshooting and ...
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How does RAM keep up with the CPU?
I am trying to understand how RAM manages to keep up with the CPU. Here is a breakdown of why I'm under the impression it wouldn't:
The clock speeds of modern CPUs are often greater than the clock ...
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How to get the real cached/prefetched memory usage in Linux?
I do face the same hangs like this post: https://askubuntu.com/questions/41778/computer-freezing-on-almost-full-ram-possibly-disk-cache-problem
To sums up: looks like prefetched/cached/paged RAM ...
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2
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658
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Can Windows 7 OS on harddrive use SSD for prefetch (SuperFetch)?
I have a Windows 7 computer with a primary drive being conventional 1 TB hard drive. I have installed an additional 128 GB SSD which I use to keep some of my frequently used data and applications.
I ...
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Why Superfetch and Prefetch on Windows 8.1 cause high disk activity on Pagefile disk?
I have an SSD running Windows 8.1 Pro x64, which only has 128GB.
To leave it a little more free, I have left only 200MB of Pagefile in it.
I have another HDD which has 1TB.
In it, I made a new ...
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Should I enable or disable Prefetch/SuperFetch with my new SSD?
I recently got a new Samsung SSD. It comes with software called "Samsung Magician".
Basically it lets you configure things with your new SSD. I'm really confused about Prefetch/SuperFetch ...
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2
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Any solid reason to turn off Superfetch and Prefetch for SSD?
Microsoft or other places suggest to turn off SuperFetch if you use SSD, like this one:
http://support.microsoft.com/kb/2727880
But with SuperFetch and Prefetch:
There isn't any access write to SSD ...
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Why do I need disable DNS prefetching / network prediction in Firefox, Chrome for them to be usable?
I've installed the latest Firefox and Chrome on my Windows 7 64 PC (using a wifi connection to my ADSL2+ router) recently.
In both cases loading various commonly visited sites such as wikipedia, ...
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Force Windows to cache executables without running them?
Is there a way to force Windows to pre-load certain EXE/DLL binaries into its prefetch/superfetch cache as if they had been executed? I have a particular application that loads pretty slowly on first ...
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269
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Have Ubuntu server prefetch and store mail for a Windows workstation?
I'd like to have my Ubuntu server (that also acts as a file and webserver) pre-fetch my mail from varying mail-accounts and have my Windows workstation fetch it from this Ubuntu server, in stead of ...
- 335
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2k
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Unable to disable the hardware prefetcher
I am trying to disable the hardware prefetcher to run some memory benchmarks on an Intel core i5 2500. The problem is that there is no option whatsoever in my BIOS to enable or disable the prefetcher. ...
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Does Windows 8 still using Windows 7's boot optimization prefetcher technique?
Windows Vista and Windows 7 have a self-optimizing feature—called the
boot prefetcher—that uses the disk I/O pattern from the previous boots
to predict the I/O pattern of the next boot. To improve ...
- 30.5k
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How different instruction types are defined in AMD microprocessors to identify DirectPath vs VectorPath flows?
In AMD 10h architecture like Opteron the prefetched instructions after being aligned are separated into 2 flows: DirectPath (or Fastpath) and VectorPath (Microcode engine). Later these flows are ...
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