sparse or flat memory?

[Peter_Pan123]

Hello,

which one is better for a 32bit system with >=4 gb ram?

best reguards

peter

[skyride]

Peter_Pan123 Wrote:Hello,

which one is better for a 32bit system with >=4 gb ram?

best reguards

peter

Why are you using a 32bit OS on a system with more than 4GB of RAM more to the point?

[Nuggets]

Agreed. It wouldn't make a bit of difference really as your operating system can't make full use of any memory you could use.

[Peter_Pan123]

its really easy. i tried a lot of kernel. now i tried a lot of kernel in combination with lenny (all 64bit). but no kernel gave me the same performace as one of the older ones. thats the point. anybody looks on the fps. and my older kernel arround 2.6.23 gave me with 64bit / Lenny no 992 FPS > only 333. the kernels above 2.6.24 do 992FPS but very unstable with drops from 990-500 at load and the newer kernel the same. i think the problem is the cfs > its my opinion. thats why i want to use older kernel with 64bit emu. And now i need the information > which ist better > sparse or flat memory or is at both no difference?

Whould you recommend lenny or etch? for hl1 or hl2 and other games?
Whould you recommend for 2500 mhz Quad cores 250 hz or better 1000?

thanks !!!

[BehaartesEtwas]

skyride Wrote:Why are you using a 32bit OS on a system with more than 4GB of RAM more to the point?

untrue. Linux supports > 4GB even on 32 bit, this is called physical address extension. But of course each process can only address 4GB.

nevertheless, 64 bit kernels are more advanced than the 32 bit ones. see my signature for a howto on optimizing the linux kernel for srcds, it uses 64 bits!

[Peter_Pan123]

and what about my questions :-D

i tried your howto > but the result was not so good as you have shown. I want to host 1 or 2 gameserver on each core and you will get fps Drops )990 to 500) if the system is under load. I want to use an older kernel arround 2.6.23. But with this choice i cant get ~1000FPS with 64bit :-(

[skyride]

Yes, I know about PAE but he might aswell just use a 64bit OS in the first place.

[BehaartesEtwas]

skyride Wrote:Yes, I know about PAE but he might aswell just use a 64bit OS in the first place.

he doesn't want to... it was not the question ^^

@Peter_Pan123: I cannot say you the name of the kernel option (I dont have any 32 bit system left to look it up), but it was something like "high memory support" in the processor type and features section, IIRC.

[Peter_Pan123]

no no > i know how to use more than 4 gb in my system > i want to know the difference between "sparse" and "flat" memory. I know that there is only sparse at 64 bit systems, but for 32bit systems is flat memory and sparse.

Whould you recommend lenny or etch? for hl1 or hl2 and other games?
Whould you recommend for 2500 mhz Quad cores 250 hz or better 1000?

[skyride]

Peter_Pan123 Wrote:Whould you recommend lenny or etch? for hl1 or hl2 and other games?

Well can't speak for lenny as i haven't really given it a good trial yet but my dedi server is running etch and it works great. Rule of thumb is that mature and stable code is better to use for this purpose that unstable semi-developed software. I know that debian are very particular with debugging and its probably 99.8% bug-free but at least you know EXACTLY what your getting into with etch.

[BehaartesEtwas]

skyride Wrote:Well can't speak for lenny as i haven't really given it a good trial yet but my dedi server is running etch and it works great. Rule of thumb is that mature and stable code is better to use for this purpose that unstable semi-developed software. I know that debian are very particular with debugging and its probably 99.8% bug-free but at least you know EXACTLY what your getting into with etch.

that would mean, that my bleeding-edge gentoo system should give worse results... but I cannot confirm that ;-) I think, unfortunately things are not so easy that a rule of thumb can be valid...

btw: isn't sparse or flat memory only important for systems with "special" memory configurations like hot plugging or so? i am not sure... 64 bit does not offer any choice here for normal systems ;-)

[skyride]

BehaartesEtwas Wrote:

skyride Wrote:Well can't speak for lenny as i haven't really given it a good trial yet but my dedi server is running etch and it works great. Rule of thumb is that mature and stable code is better to use for this purpose that unstable semi-developed software. I know that debian are very particular with debugging and its probably 99.8% bug-free but at least you know EXACTLY what your getting into with etch.

that would mean, that my bleeding-edge gentoo system should give worse results... but I cannot confirm that ;-) I think, unfortunately things are not so easy that a rule of thumb can be valid...

I just mean its better save than sorry when dealing with servers.