lkml.org 
[lkml]   [2007]   [Dec]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [RFT] Port 0x80 I/O speed
    Jiri Slaby wrote:
    > On Dec 12, 2007 9:48 AM, Jiri Slaby <jirislaby@gmail.com> wrote:
    >> On 12/12/2007 12:31 AM, Rene Herman wrote:
    >>> Good day.
    >>>
    >>> Would some people on x86 (both 32 and 64) be kind enough to compile and
    >>> run the attached program? This is about testing how long I/O port access
    >
    > model name : Intel(R) Xeon(R) CPU E5335 @ 2.00GHz
    > cycles: out 3217, in 1898

    1.6 µs, on the high end....

    > model name : Dual Core AMD Opteron(tm) Processor 275
    > cycles: out 5508, in 5524

    Definitely an outlier; 2.5 µs here.

    -hpa
    --
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2007-12-12 19:47    [W:0.021 / U:60.376 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site