Re: NV Cache v Ready Boost
- From: "Mark H" <jmhonzell@xxxxxxxxxxxxxxxxxx>
- Date: Thu, 15 Jan 2009 08:10:28 -0600
My take on the situation is that you probably meet the conditions in the
write-up included below and when you try to setup your 2gb SD card as
readyboost, you're being told to turn the other one off first. (I believe
you can only have one ReadyBoost device as it would be similar to having two
pagefiles on the same drive.)
An interesting write-up buried in another thread long ago:
Windows ReadyDrive enables computers shipped with a hybrid hard drive
to access data from the nonvolatile cache, allowing the disk to remain
spun down for longer periods of time.
Windows ReadyBoost allows nonvolatile flash memory devices, such as
USB flash drives, to be used as an additional memory cache in order to
improve system performance without the addition of more system memory.
If the Intel® Turbo Memory module is 512MB, only Microsoft Windows
ReadyDrive is supported; you will not be able to enable Microsoft
Windows ReadyBoost.
If the system has an Intel® 82801IR I/O Controller Hub (ICH9R),
Microsoft Windows ReadyDrive is not supported.
This is general knowledge and as a deduction comes the answer.
512MB are used by ReadyBoost and 512MB are used by ReadyDrive. One of
the two is visible as a physical drive (NVCACHE) and the other isn't
but if enabled by its utility (Intel® Turbo Memory Console) it will be
used.
A note on performance increase.
If the system you are running has low amount of RAM (ie. 1GB) then
using an IntelTurboCache module of 1GB will yield a noticable
performance increase, but if the system already has a fair amount of
RAM (ie. >=2GB) then the increase will not be noticed as much and
going over 2GB IntelTurboCache will be just a waste of money. Beware
when using non-internal Cache (ie. a USB2 StickDrive or similar), the
Cache should perform better than 10MB/s reads.
"ootsa" <guest@xxxxxxxxxxxxxxxxx> wrote in message
news:98b87f54de47f3af7ef29ca79aeb7de5@xxxxxxxxxxxxxxxxxxx
I have a bit of a quandry. I have a Toshiba Satellite x200 dual core, 3G
ram 250 G HD with Windows Vista Ultimate SP1
I wish to utilize the ready boost function. When I plug in an 2 g sd
card or a flash drive and try to use them as ready boost the system
detects the 512 NV cache that is available and in use as part of my hard
drive and instructs me to disable this cache in order to utilize ready
boost.
I believe I am able to disable this cache either through the group
policy program (gpedit.msc) or by disabling it in the bios settings.
My question is: Is it a good idea to disable the 512 Meg nvcache in
order to add 2 Gigs of ready boost cache? It seems so but would like
some confirmation before I start fiddling.
Thank you for any replies.
--
ootsa
.
- References:
- NV Cache v Ready Boost
- From: ootsa
- NV Cache v Ready Boost
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