Hi Rainer,
I am using Windows 2000 professional so I suspect
Tomcat is using an windows api call that is limited to
15msec resolution even though the %d is advertised as
microsecond resolution.
The Java jre had this issue then with release 1.5+ Sun
added a nanosecond timer which is what I used for
making servlet measurments. Of course when I got below
that in my design/implementation that was not good
enough but by then I figured that kind of response
time meant over 1 billion requests per second per cpu
so I was happy. Of course getting that out of the
servlet container and web services layer was the next
challenge ;)
Regards,
Tony Anecito
Founder, MyUniPortal
--- Rainer Jung <[EMAIL PROTECTED]> wrote:
> Christopher Schultz wrote:
> > Other factors include the resolution of the timer
> being used by Apache
> > and/or mod_jk for emitting log messages. Most
> people don't care about
> > high-resolution timing for things like web server
> logs, so I wouldn't
> > expect Apache to be using one.
>
> mod_jk as well as Apache httpd use apr_time_now(). I
> checked with APR
> 1.2 (httpd 2.2): on Unix/Linux this is
> gettimeofday().
>
> Even on an old Solaris 8 system, I can easily get
> microsecond resolution
> out of a C test program using gettimeofday(), i.e.
> successive calls to
> gettimeofday return microsecond values differing by
> 0 or 1 microsecond.
>
> Regards,
>
> Rainer
>
>
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