Using rdtsc to timestamp RTT of packets
Stephen/Gabor/Harry: Gents thanks for the guidance; this mailing list is
great. The message is rdtsc is just fine. Got it.
The command line (from Harry):
>lscpu | egrep "constant_tsc|nonstop_tsc"
is operationally ideal: specific, easy, and answers the
On Sun, 5 Mar 2023 20:01:15 -0500
fwefew 4t4tg <7532ya...@gmail.com> wrote:
> I think rdtsc does all this. But then I read [1]:
>
>- The TSC is not always invariant
>- And of course context switches (if a thread is not pinned to a core)
>will invalidate any time difference
>- The
> From: fwefew 4t4tg <7532ya...@gmail.com>
> Sent: Monday, March 6, 2023 1:01 AM
> To: users@dpdk.org
> Subject: Using rdtsc to timestamp RTT of packets
> I convinced myself that a viable way to measure timestamps between a request
> packet and its response packet can be the difference between
Please see my comments inline.
On 3/6/2023 2:01 AM, fwefew 4t4tg wrote:
I convinced myself that a viable way to measure timestamps between a
request packet and its response packet can be the difference between
two Intel rdtsc calls
I think it is a good solution: computationally inexpensive
