Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

In my server bios I've found such technologies:

  • Intel Virtualization Technology
  • Intel VT-d

I don't use them as I don't use virtualization. I'm using server for HFT trading and so I want to "win" several microseconds disabling features I don't need. If it makes sense?

share|improve this question
    
Suggestion: run a CPU-intensive benchmark with those settings on and off, then compare the results to see if there's an improvement. –  Indrek Jun 21 '12 at 8:51
    
Although, this also probably belongs on Server Fault. –  ewwhite Nov 18 '12 at 11:04

4 Answers 4

Under my knowledge, that may not have performance improvement, I have never experienced a Performance improvement disabling these technologies (under my cases these technologies helped me gain performance many times but sometimes decreasing the performance). You should run a Benchmark with those technologies enabled and disabled, that would help you decide.

share|improve this answer

As far as I know, those are things that your CPU has extra hardware for, so that will not help you with performance. You can disable it as a security measure though.

share|improve this answer

I don't think so. Those technologies are used whenever required. They don't have any direct impact on CPU performance.

share|improve this answer

HP provides a comprehensive set of BIOS and tuning parameters for systems intended to be used in low-latency or deterministic environments. I assume HP because you've mentioned ProLiant servers in your other posts here.

Please see:

Configuring and Tuning HP ProLiant Servers for Low-Latency Applications White Paper

In short, I set my trading application servers to disable C-States, use the highest power profile, disable Turbo Boost, and sometimes, disable processor and memory monitoring. I lower the timeouts for the integrated watchdog timer and leave the Intel Virtualization options enabled (for flexibility).

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.