[Chuchnit]

Well since some of you super pi champs like 3OH6 is here I figured I'd ask. I'm not asking for your secret sauce waza file size or anything. I would just like a clear explanation of exactly what it does and why it helps 32m? I've played a little with superpi tweaker but have no clue on where to start adjusting the proggie. For some of you hardcore guys, yes I know that it is posted places like the xs lc thread, but I honestly don't have enough free time to sift through 200+ pages in a thread. Plus I don't think I've seen anyone explain how/why it works.

lemme say once again.... I don't expect you to share your waza file size or how many times you do it. Just a little how to and why to do it. I already know to play with page file and maxmem tweak.

Thanks Chuchnit

[Chuchnit]

Ok so no one wants to share. So then explain why its done, not how. Or hell just link it up to where you learned.

[dinos22]

lol you're not a patient type are ya hahahah


wazza has been discussed to death and back at XS

you really should just do a quick search there and find plenty of material to read up

essentially you want to make your HDDs work hard for a little while and then do the bench basically
most ppl just copy a file from one partition to another and thats that

wazza has lost a lot of its charm with high L2 cache CPUs as gains are very small now though but yeah thats that

[3oh6]

Dino is right, copy wazza doesn't have near the effect on i7 as it use to due to the massive cache on these chips. my understanding of wazza has always been that it is a process which ends up clearing the CPU cache - or 'aligning it' - letting SPi room to run free thus increasing the calculating speed. with the cavernous cache of i7, this just isn't as effective.

most setups from what i have seen on i7 only gain 3-4 seconds for 32M from wazza. with that said, i haven't really sat down and tried to optimize my wazza method for i7. i am still running my basic setup from the first E6300 C2D's i had. i know, i know, shame on me

[dinos22]

Originally Posted by 3oh6

most setups from what i have seen on i7 only gain 3-4 seconds for 32M from wazza.

i am thinking that it may be even less than that but i am probably not doing it well enough either heh

[G H Z]

Originally Posted by 3oh6

my understanding of wazza has always been that it is a process which ends up clearing the CPU cache - or 'aligning it' - letting SPi room to run free thus increasing the calculating speed.

It's actually the System Cache

From TechNet:

Windows allocates a portion of the virtual memory in your system to the file system cache. The file system cache is a subset of the memory system that retains recently used information for quick access. The size of the cache depends on the amount of physical memory installed and the memory required for applications. The operating system dynamically adjusts the size of the cache as needed, sharing memory optimally between process working sets and the system cache.

And why Wazza is effective:

Frequent cache flushing might occur if data is written to the disk frequently in order to free pages

If your running on XP/2003, open Task Manager and you can watch it grow during CW file copy.

[Chuchnit]

Originally Posted by G H Z

It's actually the System Cache

From TechNet:

Windows allocates a portion of the virtual memory in your system to the file system cache. The file system cache is a subset of the memory system that retains recently used information for quick access. The size of the cache depends on the amount of physical memory installed and the memory required for applications. The operating system dynamically adjusts the size of the cache as needed, sharing memory optimally between process working sets and the system cache.

And why Wazza is effective:

Frequent cache flushing might occur if data is written to the disk frequently in order to free pages

If your running on XP/2003, open Task Manager and you can watch it grow during CW file copy.

Thank you so much GHZ. I like learning my own style to tweaks, but I'm one of those wierdos who like to understand WHY I'm doing what I am. Now I can visualize what wazza is doing when I'm using it.

[Chuchnit]

The Many OS software tweaks of SuperPi Exposed
Submitted by Johnny Bravo on Sat, 04/05/2008 - 01:26. Guides
Over the years there has always been various tweaks touted and spread over overclocking forums on how to improve benchmark results. One area this has been quite prevalent in is SuperPi. We see one guy try something different, get a faster time and suddenly everyone's trying it for themselves. Too often we simply try the newest thing with no real understanding of what it is doing and how it is supposed to help our times. Then when we don't see any real gains we are left wondering what all the fuss is about or why it works for some people and not us.

What I propose here is a thread in which we can all input our findings to test these various tweaks. Each week we shall choose one tweak - specify a platform and run various SuperPi sizes (1M, 2M...) and hopefully through numbers we will establish what gains if any that tweak brings.

To begin with I ask for you to suggest any additional known software tweaks that are commonly used. I have made a list of the ones I know of so far but am welcome to suggestions as we go on.

Known tweaks

XP or 2003 Server
Copy Wazza
LargeSystemCache
/MAXMEM or /BURNMEMORY
GUI Theme
Processor Affinity and Priority
Background Services
RAMDISK Applications

Source

Interesting read....

[HITandRUN]

Originally Posted by Chuchnit

Source

Interesting read....

Yeah I have read that a while ago and picked out the best tweaks for me. I never tried the Waza thing though.

[<<HANNIBAL>>]

Just type this in RUN: fsutil file createnew D:\wazaaa.dat 1941504000
it will create a file in your partition D:
then copy the file in the SPI folder and after that run SPI 32m