Re: Latencies

• To: Daryl Herzmann <akrherz@xxxxxxxxxxx>, ldm-users@xxxxxxxxxxxxxxxx
• Subject: Re: Latencies
• From: "Stonie R. Cooper" <stonie.cooper@xxxxxxxxxxxxxxxxx>
• Date: Sun, 9 Feb 2003 14:26:32 +0000

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Daryl,

In regards to NOAAPort:

NCF maximum latency . . . the time the product spends on queue at the NCF 
uplink . . . was 62 seconds since 2 Feb.  Average has been 2 seconds on the 
NCF NWSTG queue.  This is quite good . . . especially considering latencies 
on EMWIN is upwards of 15 minutes for "emergency" products, and hours for 
imagery.  Also, since the first of the year, the NWSTG traffic has exploded 
from a little over 4GB per day to 5.9GB per day (O.K. - let's just call it 
6GB per day) - 50% increase.

Amount of time a product spends on a "queue" after downlink is vendor and 
location specific.

Here are some stats pertaining to NCF latency:

- --------------------------------------------------------------
channel stats reset on Sun, 02 Feb 2003, 22:03 GMT
- --------------------------------------------------------------
  Time on Queue Statistics - Units are in seconds, for
- --------------------------------------------------------------
   Channel      | NCF Max | NCF Ave | NCF Max WMO
- --------------------------------------------------------------
GOESEast Queue  3       1       TIGN04 KNES 050045
GOESWest Queue  93      32      TIGF01 KNES 061700
NWSTG Queue             62      2       YTUI98 KWBE 041800
DCP Queue               152     4       ZUSE86 KWBE 061200
- --------------------------------------------------------------

IDD latency will undoubtedly be landline (internet) or IDD receive system 
related.
- -- 
Stonie Cooper
Planetary Data, Incorporated
(402) 782-6611/(770) 713-6763

On Sunday February 9 2003 06:17, Daryl Herzmann wrote:
> Hi,
>
> Just a FYI.  You may want to check out your data files for Saturday.  If
> you don't allow latencies over an hour (-m), you are missing data. My feed
> has been running 60+ minutes behind since Saturday afternoon.  Checking
> out the current IDD latency charts, everybody is behind.  Perhaps
> something is up with NOAAPORT?
>
> Later,
>  Daryl

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.6 (GNU/Linux)
Comment: For info see http://www.gnupg.org

iD8DBQE+RmUY3iTdV0m17SQRAt2nAJ9BaJ7J6G1yH8OX/1Wu2DKPRwgCvACfUAJB
wXKl1hDSgJi6Y2JWL74g9ZY=
=uiyi
-----END PGP SIGNATURE-----

• Follow-Ups:
  • RE: Latencies
    • From: Ray Weber

• References:
  • Latencies
    • From: Daryl Herzmann