Can someone confirm that Vista64 is slower with Rybka then XP64?
Vista has a lot of disk processing and cache swapping in the background as long as there's available CPU usage.
It utilizes all available RAM no matter how big it is.
All those are supposed to improve overall performance of desktop applications that has nothing to do with chess :)
Luckily, a 5% drop or increase in Rybkas KNPS is not really that significant :)
It utilizes all available RAM no matter how big it is.
All those are supposed to improve overall performance of desktop applications that has nothing to do with chess :)
Luckily, a 5% drop or increase in Rybkas KNPS is not really that significant :)
Yes, it seems but just a little !
My test was on the 32bits version.
FUTUR
My test was on the 32bits version.
FUTUR
I made tests some time ago with a special benchmark version of Rybka. That test indicated that Vista slows down Rybka by 2%. But in the meantime i found out that these benchmarks show some deviations in result every time you run them. So i am not shure anymore that Vista is worse.
vista has some problems with 8 cores according to microsaft, so its no wonder :)
These differences should depend a lot on the hardware. They should be negligible for reasonable hardware, and notable for old hardware. 2% on Kullberg HW seems way too much.
For any meaningful test of that kind, you will need more than one run for each side. 15 is a good start... Less if the results are dramatic, of course, and it all depends on what confidence level you want.
/* Steinar */
/* Steinar */
Each of these benchmark runs takes ~3 hours, so i thought they should be precise - but they are not :(
15 runs on each os would take 90 hours - i am not that patient ;)
15 runs on each os would take 90 hours - i am not that patient ;)
According to my experience, there is no significant differences in speed (E6600 = 2 cores).
To plan to the best XP with Rybka, you can use GameXP.
It is a tool that puts XP under the best conditions for the games.
But attention, will remove from you some small utilities of XP.
You will always be able in a second moment, to restore the preceding state.
This you can directly do it with the program, it has an option for this.
You will have an I increase of 5/10%.
I attach to the present one the briefcase with the program. I also attach the
proramma ClockGenerator, for overclokcare the CPU.
I beg me not to exaggerate.
Hi Alberto
It is a tool that puts XP under the best conditions for the games.
But attention, will remove from you some small utilities of XP.
You will always be able in a second moment, to restore the preceding state.
This you can directly do it with the program, it has an option for this.
You will have an I increase of 5/10%.
I attach to the present one the briefcase with the program. I also attach the
proramma ClockGenerator, for overclokcare the CPU.
I beg me not to exaggerate.
Hi Alberto
Attachment: GameXP2.rar (444k)
Attachment: ClockGen.zip (328k)
Hi,
Vista in general is slower than XP and eats memory ... It it easy enough to search google http://www.tomshardware.com/2007/01/29/xp-vs-vista/ ... There are plenty of other places you can read up on this stuff
Regards
Vista in general is slower than XP and eats memory ... It it easy enough to search google http://www.tomshardware.com/2007/01/29/xp-vs-vista/ ... There are plenty of other places you can read up on this stuff
Regards
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