Re: IBM Power is extremely expensive so they must drive perception of "low cost"
If you had bothered reading the oracle presentation from hotchips, you would have seen that it uses OLTP workloads, when it put forth it's claim that the throughput of the T4 chip is more or less equal to the T3.
The really big feat was that Oracle managed to increase single threaded throughput by almost a factor of five, hence actually taking the T4 out of the niche where the T3 was stuck.
Now nobody likes using specint/fp. it's not a particular good benchmark as your rant about. Historical for example POWER servers have normally been much better at OLTP and IO heavy benchmarks, as this is what the servers have been geared at.
But it still doesn't change that the chip throughput of the T4 is roughly the same as the T3.
Now for example if you compare the T4 and the T3 you can actually use the Enterprise2010 benchmark, where you have can see that 16 T4 chips give you aprox x4 more throughput than 4 T3 chips does.
As for all the T4 world records.. again .. we've been over this several times. T4 is the fastest chip in the world on Oracle product benchmarks where the only competing chip is the T4. The only industry standard benchmarks that have been done on the T4 is the spec Enterprise2010, where it now gets trashed, as other vendors turn to the benchmark, and figures out how to tune for it. Just like I predicted.
And then there is the tpc-h benchmark, again a benchmark that Oracle cracked some years ago, and if you look at how the setup is on the Oracle benchmarks, it's very very different from all others. Again Great work by Oracle, but it doesn't really say that much about the superiority of the T4. Again one measuring doesn't really make a trend now does it.
And funny to see you echoing the newest Oracle marketing message. Power have bad I/O. It's so Carl Rove. Attack your opponents strongest side with FUD.
Just to counter that, then IBM did a real nice benchmark some years ago.. a SPC1 benchmark, where they rather than having a LOT of hardware with a lot of RAM for caching, and IO processors and and and.. simply used a virtualized solution with the storage attached to the Virtual IO servers, that then virtualized the storage and shared it to the virtual machine that ran the benchmark. The machine used was a partitioned POWER6 based power 595. Again an almost 5 year old machine.
Now.... the link to the benchmark is here:
As you can see the IO setup uses 14 ancient PCI-X adapters and 2 old PCI-X drawers, that are cabled for max connectivity and not performance (4 cables not 8) and it runs virtualized POWER solution, with VIO servers and all. Furthermore the setup uses Virtual SCSI. Old and slow compared to what you could do today with NPIV:
At the time of submission this was the World Record for the SPC1 benchmark. And again... this is a pretty standard setup, that isn't even extreem in any way.
Where it gets fun is to compare it to a Oracle Sun ZFS Storage 7420c Appliance benchmark, with a setup that isn't that different what Oracle could do today.
The SUN benchmark uses 2 storage servers with a total of 1TB of RAM and 64 X7550 Xeon processors. and a shitload of IO adapters. The host system driving the benchmark uses 6 PCI-e Gen2 dual port 8Gbit adapters. And even though the old POWER machine only uses to old PCI-X based IO with 14 pci-x SAS adapters, the drawers are even cabled for max connectivity and not performance (4 cables not 8) and it runs virtualized POWER solution, with trashes it with a factor of 2 both on throughput and on response time.
Now how you can think that a POWER7+ based server, with a IO system that is 3 generations newer than what is in the old POWER6 based p595, can have IO problems compared to a T4 based machine is IMHO a riddle. Again the T3-1 that is used in the Oracle benchmark above has the same IO system that the T4-1 has, and the T3-1/T4-1 IO system is IMHO better per chip, than the T4-4 has.
To be quite honest... you should try to read a manual. And try to understand what is going on under the covers rather than just echoing marketing material.