Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64 with MCP51 laptops

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From: Paul Rolland
Date: Tuesday, December 11, 2007 - 6:32 am

Hello,

On Tue, 11 Dec 2007 14:16:01 +0100
Rene Herman <rene.herman@keyaccess.nl> wrote:



Some results :

Core 2Duo 1.73GHz :
[root@tux tmp]# ./in
out = 2366
in  = 2496
[root@tux tmp]# ./in
out = 3094
in  = 2379

Plain old PIII 600 MHz:
[root@www-dev /tmp]# ./in 
out = 314
in  = 543
[root@www-dev /tmp]# ./in 
out = 319
in  = 538
[root@www-dev /tmp]# ./in 
out = 319
in  = 550
[root@www-dev /tmp]# ./in 
out = 329
in  = 531

Opteron 150 2.4GHz :
-bash-3.1# ./in
out = 4801
in  = 4863
-bash-3.1# ./in
out = 5041
in  = 4909
-bash-3.1# ./in
out = 4829
in  = 4886

Paul

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Messages in current thread:
Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern ..., Dr. David Alan Gilbert, (Sun Dec 9, 6:41 am)
Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern ..., Paul Rolland, (Tue Dec 11, 6:32 am)
Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern ..., linux-os (Dick Johnson), (Tue Dec 11, 8:41 am)
Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern ..., linux-os (Dick Johnson), (Tue Dec 11, 1:27 pm)
Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern ..., linux-os (Dick Johnson), (Wed Dec 12, 6:11 am)
More info on port 80 symptoms on MCP51 machine., David P. Reed, (Wed Dec 12, 1:07 pm)
Re: More info on port 80 symptoms on MCP51 machine., Rene Herman, (Wed Dec 12, 1:26 pm)
Re: Attitude problems., linux-os (Dick Johnson), (Wed Dec 12, 1:31 pm)
Re: More info on port 80 symptoms on MCP51 machine., David P. Reed, (Wed Dec 12, 1:37 pm)
Re: More info on port 80 symptoms on MCP51 machine., H. Peter Anvin, (Wed Dec 12, 2:05 pm)
Re: Attitude problems., linux-os (Dick Johnson), (Fri Dec 14, 9:01 am)
Re: More info on port 80 symptoms on MCP51 machine., Chuck Ebbert, (Fri Dec 14, 3:05 pm)
Re: More info on port 80 symptoms on MCP51 machine., Rene Herman, (Sat Dec 15, 12:22 am)
RE: More info on port 80 symptoms on MCP51 machine., Allen Martin, (Sat Dec 15, 3:34 pm)
Re: More info on port 80 symptoms on MCP51 machine., H. Peter Anvin, (Sat Dec 15, 3:46 pm)