Re: [EXTERNAL] Re: ibm_db node module and IBM Data Server Driver

Nathan,

there is a big difference, most browsers sets a kepp-alive value on their
HTTP connection
to 300 seconds - servers that request services on other servers don't do
that as default
so the establish a new HTTP connection for each call to XMLSERVICE and that
adds
more that 30 ms to the call.

Besides that - there is a big difference on response time running localhost
and over a
network where you also have to take the network latency into account.

On Wed, Apr 11, 2018 at 8:04 PM, Nathan Andelin <nandelin@xxxxxxxxx> wrote:

Henrik,


On Wed, Apr 11, 2018 at 11:08 AM, Henrik Rützou <hr@xxxxxxxxxxxx> wrote:

Nathan,

you are not able to send even a small package over HTTP and network in

less

than 30 ms...

You're evidently adding network latency in your 30 ms assertion. I was just
measuring the 1-2 ms time elapsed in the IBM i Apache server in order to
perform request-response I/O, and saying that small latency could not be
much different than that of QZDASOINIT interfaces.

Most sites that I visit have about 90 ms of network latency over the
Internet, plus 200-300 ms of latency attributed to request handling. So the
1-2 ms of time spent by our IBM i Apache servers is a very small portion of
overall latency in most web sites.
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