Performance difference between ESX 3.5 and ESX4???

[VCPGuru]

Has anybody real life expirience from the performance difference esx 3.5 to esx 4.0?

thank you in advance

[Troy_Clavell]

I think the biggest difference between the two is ESX4 now has a 64bit VMkernel

Also, check out this KB article although not a performance comparison

[VCPGuru]

so you will recognize a performance boost if most of your systems are x64 servers?

[Troy_Clavell · Accepted solution]

yes. Just having ESX4 running whether your guests are 32 bit or 64bit, we have seen better performance all around. Also, something worth looking at are Some VMmark results

[AndreTheGiant]

See also:

http://www.vmware.com/files/pdf/vsphere_performance_wp.pdf

http://www.yellow-bricks.com/2009/05/19/vsphere-performance/

Andre

[mcowger]

Right now we are seeing approx 15% improvement on identical hardware and virtualized loads.

--Matt

VCP, vExpert, Unix Geek