-- SuperPi Tweaking Guide --

[lupacchiotto]

Can we open a thread with the tweaks for superPi...u know?

[megahurtz-oc]

you need low latency ram and massive ghz........

[Hilppa]

This is a good thread, and it makes this race much more interesting. To break the ice, try this:

run --> msconfig --> diagnostic boot mode

This will shut down lot's of services and give you a nice boost

Also adjust your paging file to zero.

Remember to run superpi.exe in Real time mode (from task manager) and turn off explorer.exe and userinit.exe during the run. You can run explorer.exe after the run from task manager.

Let me hear some more

[dav]

This is a good thread, and it makes this race much more interesting. To break the ice, try this:

run --> msconfig --> diagnostic boot mode

This will shut down lot's of services and give you a nice boost

Also adjust your paging file to zero.

Remember to run superpi.exe in Real time mode (from task manager) and turn off explorer.exe and userinit.exe during the run. You can run explorer.exe after the run from task manager.

Let me hear some more

that is really Xtreme...

[lupacchiotto]

thanks guys...
nobody knows other tweaks?

i know some clocker has (when they bench...) a filepaging with only 25mb...this is really extreme and i don't know what they do for having a lower filepaging...?

[Crankster]

You can use a ramdisk program. Thats what the japanse OCers do.

[Hilppa]

In my own test I found no change in SuperPi8m time when using ramdisk.

[lupacchiotto]

a ramdisk is a program that defrag the memory, is true?
for instance "memturbo" or it defrag the memory in real time when you run superPi...?
i see in japane's screens that they use often a program with a strange name...but i don't remember it..."maro" or a similar name...i don't remember!

u know there are tweaks to optimize the OS for supePi?

[G H Z]

A Ramdisk is a virtul drive placed in physical memory space. Load SuperPi into the RD and run it, it might make for better times but it is a small app. It might work better to place the page file on the Ram disk if that's possible. Hard part is finding free software to build a Ramdisk that shows in my computer, at least it was hard to find a year ago for me.

Memory defragging app's are a waste if you ask me, they only hurt performance from my experience.

[CodeRed]

Here's some stuff I found useful ... for A64 owners

Win2003 64 bit is the fastest

Set mem timings to
2-7-12-2-2-5-2-2-1-1
Max async latency = 6ns
Read preamble = 5ns
Read Write Queue Bypass = 16x
Bypass Max = 7x
Dynamic Idle Cycle Counter = enabled/16 clocks

I also wrote a little proggy that measures the CPU time accurately for an application. This will help in when fine tuning your setup to see if the tweaks are improving the score or not. The 1 second resolution in SuperPi drives me MAAADDDD Just click "Refresh " before and after running the tests.

ProcessTimer.exe

EDIT: fixed link .. doh

[reject]

ok, link was
http://users.tpg.co.au/spark69/ProcessTimer.exe
fixed link is
http://users.tpg.com.au/spark69/ProcessTimer.exe
trying it now.

[detonator]

under sitem how do you set the memory usage? to programs or to system cash?
on the 8 mega I found better to give it to the sistem cash with the pagin file off.

[dav]

ok, link was
http://users.tpg.co.au/spark69/ProcessTimer.exe
fixed link is
http://users.tpg.com.au/spark69/ProcessTimer.exe
trying it now.

thanks.

[lupacchiotto]

in my experience i don't have a significative improvement of the performance with defrag application's...can someone give me a link for a ramdisk?
i want to test this...

[lupacchiotto]

what ramdisk program do you use?
nobody want to teach us other tweak to optimizate the OS or the bios?

[swarzy85]

thanks guys...
nobody knows other tweaks?

i know some clocker has (when they bench...) a filepaging with only 25mb...this is really extreme and i don't know what they do for having a lower filepaging...?

windows xt lite + sp2 (28MB)

[deevo]

swarzy...
do you know how to tweak super PI on windows XP pro?

[sai]

Best OS to use is a clean Windows 2003 Server !
And ramdisk is better than the maxmem-tweak and remember you can't use both and should prefer the ramdisk application. I'm using SuperSpeed RamDisk Plus

[deevo]

Best OS to use is a clean Windows 2003 Server !
And ramdisk is better than the maxmem-tweak and remember you can't use both and should prefer the ramdisk application. I'm using SuperSpeed RamDisk Plus

so i cant do any tweaks on XP PRO?
does anyone tried to tweak on XP PRO with sp1?

[Nazaar]

i'm always benching with win2000. Is 2003 a big difference ? Will i gain a second ?

[sai]

I was only able to do 29secs on win2k3, so go figure..

[D_o_S]

Here are some tweaks:

(Note: these are not my tweaks (I did not write them), they are off another forum)

note: these tips are for superpi only. some may work well for other benchmarks but may hurt your scores in other benchmarks. pedro rocha's tweak is an excellent exampe for this. it will boost your 3dmark2001 score by quite a bit but it will have a negative effect on your pifast score.

use windows 2003 server (sp2 or sp4 , that I don't know yet)

run --> msconfig --> diagnostic boot mode

This will shut down lot's of services and give you a nice boost

Remember to run superpi.exe in Real time mode (from task manager) and turn off explorer.exe and userinit.exe during the run. You can run explorer.exe after the run from task manager. (typically C:\windows\explorer.exe I think)

running superpi in realtime doesn't give me a noticeable gain on Axp or P4.

Some people experienced worse scores from killing explorer.exe and minimizing superpi.

set page file to 0. this didn't help me mutch but I didn't' time it with that process timer proggy so it might help a few milli seconds.

I use blackviper's registry patch instead of diagnostic mode... disables a lot of services mostly and adds some other tweaks like the no page file tweak...

if you use page file, delete, defrag and set again.

clean install is best offcourse and defrag right away after installtion aswell best to use a 3rd party defrag tool. most will do a much better job at it then the windows defragger.

apparently, a lot of the japanese (asians in general I suppose) benchmarkers use a ramdisk program but I haven't found out wich one and when I ask around, nobody can (will) tell me wich program to use.

also, some use ram optimization tools. maxmem is often used. I haven't tried it myself though, it may or may not do the same as the boot.ini maxmem tweak.

so the boot.ini maxmem tweak (doesn't always help and slows your system down): look at in the advanced options of boot.ini, there is "MAXMEM"

in the boot.ini after /fastdetect add /maxmem=104 (or 105)

for example : multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Windo ws Server 2003" /fastdetect /maxmem=104

if the option isn't available through msconfig then the boot.ini will do the trick.

link : http://www.xtremesystems.org/forums...tid=21045&stc=1

for the cpu, high mhz is more important then high fsb in dispite of the fact that high fsb is faster in most applications.

for the memory, tight timings are more important then high bandwith, offcourse there are limits to this and you'll have to find a good compromis.

apparently, sometimes deleting all the files in the superpi folder except the .exe and .txt files can rid you of the "not exact in round" error message.

Reports on the pedro rocha's multiprocessor tweak are two fold, good and bad : device manager > pc > computer > acpi uniprocessor pc > update driver > acpi multiprocessor pc

carefull though, this tweak causes higher loads on the psu (12V line, others I don't know), higher cpu heatoutput, cpu and/or gpu instability.

link : http://www.xtremeresources.com/foru...achmentid=12637

Go to: Control Panel ---> System ---> Advanced ---> Performace Options ---> Advanced

set Processor Schedulling to Programs and Memory Usage to System Cache



most of these tweaks will give you little boosts but imho, will not gain you a full seccond. then again, sometimes, all you need is that extra millisecond faster

[sai]

Compared to a 'normal' superpi run with all standart services enabled etc. it will give you even more than 1 sec

[Nazaar]

any tweaks for win 2000 + sp4 ? Right now, I can't get server 2003, so i'll have to bench with win 2000 for a while