[GRLUG] virtual box/cpu speed"

[Michael Mol]

Sure, there's a speedup with quad-core. Your computer has dozens of
processes, and the ability to service more at the same time reduces latency.

Additionally, some server services scale very well to multiple cores. HTTPd,
for example. If you use soft RAID on Linux, and have the appropriate kernel
option enabled, checksum calculations for RAID modes 4, 5, and 6 will be
split across your cores.

Desktop apps are catching up, too. If you use Firefox, Flash is kept as a
separate process, a scenario which benifits from more cores (see my note on
latency near the beginning). If you use Chrome or Chromium, each _tab_ is a
separate process, which leverages multicore for app-wide performance
improvements.

These days, hanging at two cores when looking at making a purchase doesn't
make sense.

Right now, I believe the price/performance sweet spot is at three cores. It
will probably be at four by the end of summer.
On Mar 23, 2011 10:25 PM, "west mi" <west.mi420 at gmail.com> wrote:
> Do you think there is a significant speed difference between the dual and
> quad core cpu's?
> I havent used anything but single and dual cores.
> I switched several years back to dual core, and did notice a significant
> speed up.
>
> Do you think vbox can fully utilize a quad core?
> I hesitate on going to a quad core, because I don't know if today's
software
> can
> fully utilize 4 cores.
>
> thanks,
> Darrin
>
> On Wed, Mar 23, 2011 at 11:55 AM, Topher <topher at codeventure.net> wrote:
>
>> On Wed, 23 Mar 2011, west mi wrote:
>>
>> Anyone have win7 working in vbox?
>>> And does it work good?
>>>
>>
>> I'll chime in.
>>
>> I have a 32bit win7 install on my 32bit Arch linux laptop. The host has
2G
>> of ram and I give one to the vm. I use Photoshop in it and it works just
>> fine.
>>
>> I copied that vm to my 64bit arch host and that went flawlessly. Now that
>> vm has 2G of its own, and 2 of my 4 processors. Still using photoshop,
but
>> it screams right along. It takes 5-7 seconds to go from power on to
login,
>> and maybe 12 seconds to reboot.
>>
>> I really like VirtualBox.
>>
>> topher
>>
>>
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