Hyper quick pc needed
Discussion
Information on amazing dual-core value (4.1 GHz dual-core at £79.95 that blows away most of Intel and AMD's top-end offerings) at Tom's Hardware.
roadsweeper said:
Information on amazing dual-core value (4.1 GHz dual-core at £79.95 that blows away most of Intel and AMD's top-end offerings) at Tom's Hardware.
Run some overclocked system as the PC I earn my living on? I'll pass on that thanks.
Cheap speed for home though.
shadytree said:
Remember firm PC, so cost not a problem. Just need something lightning fast that I won't outgrow in 12 months
You'll outgrow most hardware in twelve months if your software keeps getting updated. I always find java apps sluggish but have never bothered to find out why. I would have said it's best to work out which components are most likely to bottleneck a system in a java app first and then overspec those parts.
BliarOut said:
I always find java apps sluggish but have never bothered to find out why. I would have said it's best to work out which components are most likely to bottleneck a system in a java app first and then overspec those parts.
Almost always it's the memory bandwidth that slows it. Object oriented programming. Got to hate it...
ThatPhilBrettGuy said:
BliarOut said:
I always find java apps sluggish but have never bothered to find out why. I would have said it's best to work out which components are most likely to bottleneck a system in a java app first and then overspec those parts.
Almost always it's the memory bandwidth that slows it. Object oriented programming. Got to hate it...
So for Shady's work machine good memory speed is more important than outright CPU cycles and graphics performance?
BliarOut said:
So for Shady's work machine good memory speed is more important than outright CPU cycles and graphics performance?
Probably yes. So I'd probably look from something like this :- http://www-03.ibm.com/servers/uk/inte
Stuff in 2 dual core AMD's and make sure it has 2GB of memory per processor and you're laughing. Type 'numa memory' into google and read read read.
Basically some AMD chipsets support each processor having their own memory. Instant doubling of memory performance, which for most business apps is the killer number.
At my old work we ran our trade processing app on a 4 processor, dual core, hyperthreaded 3.6Ghz Intel box (16 processors showing in Task Manager, nice) with 16GB RAM. Got about 29,000 transactions per second out of it.
Same I/O system on a 4 processor, dual core AMD box @ 2.2Ghz with 2GB per processor node (seem NUMA stuff).... 81,000 transactions per second.
shadytree said:
My work PC is dying under the stress 
A lot of my applications use Java and the refresh time is starting to suffer.
What's the quickest chip and video card you can get today ?
A lot of my applications use Java and the refresh time is starting to suffer.
What's the quickest chip and video card you can get today ?
What is the spec of your current system? What operating system, etc? Does the java use Swing?
Just been talking to our technical architect and he suggested reloading the operating system. If it's XP it can get clogged up.
ThatPhilBrettGuy said:
BliarOut said:
I always find java apps sluggish but have never bothered to find out why. I would have said it's best to work out which components are most likely to bottleneck a system in a java app first and then overspec those parts.
Almost always it's the memory bandwidth that slows it. Object oriented programming. Got to hate it...
yup - actually with nasty branchy bytecode / interpreted languages, memory latency is as big an issue as bandwidth.
My Mac G5 Quad has monster memory bandwidth, but high latency due to the northbridge design. For loads of Java I'd choose an Opteron, the integrated memory controllers ensure *very* low latency.
As to that overclocked Pentium D, well it's bloody impressive but nearly 500 W power consumption under heavy load with only 2 cores makes my watercooled G5 Quad look like a Palm Pilot. That's crazy stuff for a computer, all mine are on 24/7 and a half kilowatt PC would not only cost a fair amount of electricity but heat the office up somewhat.....
http://h10010.www1.hp.com/wwpc/us/en/
We run 50+ instances of 2003 server on our G3s, so should be fine for some dick waving whilst running a java app.
We run 50+ instances of 2003 server on our G3s, so should be fine for some dick waving whilst running a java app.
We need to know more.
Is your work PC a server or workstation?
What cpu (type, speed) and memory does it have?
What hard drive size / speed does it have?
What OS and applications are you using?
Does it need to communicate over the network in order to perform your applications?
If you have 256MB memory then no amount of cpu and graphics card changing will speed it up.
As usual with PH, the replies so far have addressed individuals' own problems rather than yours. That's not meant in a nasty way, but it does seem to happen a lot.
My initial guess is that 50 quids worth of extra bog standard memory will improve it no end, with no need for quad dual core opterons and fancy memory.
Is your work PC a server or workstation?
What cpu (type, speed) and memory does it have?
What hard drive size / speed does it have?
What OS and applications are you using?
Does it need to communicate over the network in order to perform your applications?
If you have 256MB memory then no amount of cpu and graphics card changing will speed it up.
As usual with PH, the replies so far have addressed individuals' own problems rather than yours. That's not meant in a nasty way, but it does seem to happen a lot.
My initial guess is that 50 quids worth of extra bog standard memory will improve it no end, with no need for quad dual core opterons and fancy memory.
FWIW......
I know how you can guarantee the performance you need. Theres no point in explaining though, because I know you'll like the answer as little as me suggesting that you rewrite it in a different language.
Good luck with your Java graphics app (if that's not a contradiction)!
I know how you can guarantee the performance you need. Theres no point in explaining though, because I know you'll like the answer as little as me suggesting that you rewrite it in a different language.
Good luck with your Java graphics app (if that's not a contradiction)!
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