srcds performance boost with new CPU?

[Monk]

BehaartesEtwas Wrote:

pengy Wrote:Disable HT if you can, it basically splits the processor in half, so you get a dual core 1.5ghz... I hate ht...

sorry, but bullshit. HT will create a virtual second cpu that can use parts of the cpu that are otherwise unused (e.g. some pipelines that are not needed for the code that it currently executes). Of course you will not really get 2 cpus, it's more like 1.5 cpus.


Btw: a P4 is a very old CPU. The Celeron is very similar to the P4 and only has a smaller cache. If you want half decent servers you will need completely new hardware. Core 2 CPUs are much faster per core (despite the have less GHz -> that is not a quantity to compare CPUs). I would not run more than 2 servers per core on a modern Core2 system, or maybe 3 servers if you don't need such high quality. On your P4 the limit is (to my experience) one public and one war server (that was before orange box, so maybe it's got worse!).

P4's have high pipeline queue depth. They are generally very crappy, and HT only affects a very small amount of workloads. Disabling HT also decreases cacheline pingpongs and other things, which is generally more desirable for gameservers. P4's have very high syscall latency as well.

HT is NOT SMP, even those it installs APIC interrupts to almost have SMP support, it's NOT SMP, period.