If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
What does hyperthreading actually buy?
There has been some discussion about the benefits of hyperthreading, or
lack thereof. Here's a link to information on a single web server which supports 20k connections using a pair of slow Xeons. Turning on HT gave a 37% boost in performance, measured as tps or pages served per sec. http://kb.pert.switch.ch/cgi-bin/twi.../ApacheScaling I typically see 20-30% for big compiles, on a single CPU with HT, but this shows that there's a gain even if you have dual core. -- bill davidsen SBC/Prodigy Yorktown Heights NY data center http://newsgroups.news.prodigy.com |
#2
|
|||
|
|||
What does hyperthreading actually buy?
"Bill Davidsen" wrote in message ... There has been some discussion about the benefits of hyperthreading, or lack thereof. Here's a link to information on a single web server which supports 20k connections using a pair of slow Xeons. Turning on HT gave a 37% boost in performance, measured as tps or pages served per sec. http://kb.pert.switch.ch/cgi-bin/twi.../ApacheScaling I typically see 20-30% for big compiles, on a single CPU with HT, but this shows that there's a gain even if you have dual core. Their first version of it rarely gave me over a 10% improvement, but since I have consistently seen a 25% improvement and often more. I actually like the technology now. The new CPUs won't have it since they are more efficient, but it will have helped push the transition to multithreaded program as much as anything. |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Hyperthreading and application response time | Robert Myers | General | 10 | September 16th 04 12:57 PM |
Hyperthreading and application response time | Robert Myers | Intel | 10 | September 16th 04 12:57 PM |
Valid Points 101: 2x P4 Xeons + Hyperthreading + Windows XP Professional / W2K / NT4 / *Nix (long post!) | Duncan, Eric A. | General | 7 | February 3rd 04 05:06 PM |
Question on Hyperthreading ( developer's question) | Tetedeiench | Intel | 3 | August 15th 03 05:44 PM |
MSI 865PE and Hyperthreading P4 | J | Homebuilt PC's | 1 | August 11th 03 11:48 PM |