(PM) Latency and Lag with 3.8b15

Jeremy Malli (jeremy@Vcn.Com)
Sun, 3 May 1998 22:31:39 -0600 (MDT)

I'm seeing a couple of issues creeping up with 3.8b15 that I'm hoping are
addressable. Since the upgrade from 3.7.2c3 to 3.8b15 I've been getting
some complaints from people who play online games about lag in their game
playing. At first I thought it was most likely a Latency issue, but
response times looked the same with 3.8b15 as with 3.7.2c3. It turns out
that there is a lag that several of my customers are seeing with their
dial-in connections.

I have reproduced the problem with a couple of different 33.6 modems. One
system, which was not showing the lag on 3.7.2c3 started showing extreme
lag in web response and when simply scrolling through a text file on our
UNIX server. I switched back to 3.7.2c3 and the problem went away. The
modem in use in that situation was a Practical Peripherals 33.6 external.
I tried changing compression, init strings, buffers, etc.. with no effect
on the lag.

We're not seeing this in all modems, or in a particular chipset; in fact
the USR V.90 stuff works pretty slick with the new Lucent code.
Motorola 33.6 and 56k modems don't seem to be affected, etc. I don't have
enough info to produce a common thread yet but will still plug away at it.

Thanks...

Jeremy Malli
jeremy@vcn.com
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