same asm-code is executed less time on WinXp&Linux than on FreeBSD

[v40]

i has comp: processor i7 with 8 cores
and WinXP,Linux and FreeBSD on it.

The same asm-code is executed different time on WinXp&Linux than on FreeBSD! :\ Why?
May be i do (not) need point some compiler switches to build FreeBSD core?

 

[vermaden]

i has comp: processor i7 with 8 cores

Core i7 has only 4 cores ... you just have HTT enabled so you have 8 logical threads.

The same asm-code is executed different time on WinXp&Linux than on FreeBSD! :\ Why?

Disable HTT in BIOS and check your results again, also which version of FreeBSD you are using?

 

[v40]

Core i7 has only 4 cores ... you just have HTT enabled so you have 8 logical threads.

yes. you are right.

Disable HTT in BIOS and check your results again, also which version of FreeBSD you are using?

i have tested this. it is no difference.

 

[vermaden]

Provide the code that runs slower for you and send a bug here:
http://www.freebsd.org/send-pr.html

 

[graudeejs]

btw how did you measure?