[plug] Ping

[navarre at plug.linux.org.au]

David I could be wrong, but my memory serves me that DOS and all that is 
built from it used the system tick timer set by the RTC hardware and that 
runs at 18.2 per second.

>>>>>>>>>>>>>>>>>> Original Message <<<<<<<<<<<<<<<<<<

On 12/14/00, 11:49:52 AM, "Campbell, David (Ex AS17)" 
<david.j.campbell at honeywell.com> wrote regarding RE: [plug] Ping:


> The difference is within statistical limits, the timing capacity of Linux 
is
> 0.01 sec (10 msec, unless you have an alpha processor which has 1msec
> resolution). I am trying to hunt down the timer tick frequency of NT 
(MS-DOS
> is 13.5 ticks/sec => 74 msec). NT has been known to round down when
> performing IP timing (eg: the infamous 1GB/sec on some FTP transfers). In
> summary, until you start reaching 500 msec it doesn't carry much weight.

> David Campbell