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- Xref: sparky comp.dcom.modems:12151 biz.comp.telebit:826
- Newsgroups: comp.dcom.modems,biz.comp.telebit
- Path: sparky!uunet!sun-barr!ames!agate!linus!alliant!merk!roscom!monty
- From: Monty Solomon <monty%roscom@think.com>
- Subject: WorldBlazer throughput
- Message-ID: <1992Aug17.062712.14283@proponent.com>
- Keywords: Telebit WorldBlazer compression V.42 V.42bis MNP4/5 PEP LZ
- Sender: monty@proponent.com (Monty Solomon)
- Reply-To: Monty Solomon <roscom!monty@think.com>
- Organization: Proponent
- Date: Mon, 17 Aug 1992 06:27:12 GMT
- Lines: 92
-
- I noticed in the firmware upgrade instructions that the same EPROMs can be
- used in a T1600, T3000, or WorldBlazer! I didn't realize that the T1600
- shared the same hardware. I wonder if we need to get our T1600s
- upgraded as well.
-
- I've recently performed several performance tests using both a Telebit
- T2500 and a Telebit WorldBlazer to connect with a remote WorldBlazer
- that has the new EPROMs.
-
- The T2500 has the version GF7.03-T2500SA EPROMs.
- The WorldBlazer has the version LA5.00W EPROMs.
-
- Here are the results of the tests.
-
- Both WorldBlazers are hardwired for a DTE speed of 38400.
- The T2500 is hardwired for a DTE speed of 19200.
-
- The sample file is a large file containing english text in ASCII.
- The uncompressed version of the file is 879886 bytes.
- The compressed version of the file is 360885 bytes.
-
- The uncompressed version was transmitted both via direct uucp and as
- the body of mail messages.
-
- T2500 <-> WorldBlazer PEP appears to max out at approx. 1425 cps.
-
- T2500 <-> WB, PEP, uncompressed data, compression on
- sent data 907095 bytes 636.55 secs (1425 cps)
- sent data 898526 bytes 631.00 secs (1424 cps)
- sent data 898514 bytes 631.56 secs (1423 cps)
- received data 907231 bytes 690.81 secs (1313 cps)
- received data 907235 bytes 698.99 secs (1298 cps)
-
- T2500 <-> WB, PEP, compressed data, compression on
- sent data 360885 bytes 253.26 secs (1425 cps)
-
- WB <-> WB, PEP, uncompressed data, compression off
- sent data 906805 bytes 464.74 secs (1951 cps)
- sent data 879886 bytes 449.96 secs (1955 cps)
-
- WB <-> WB, PEP, uncompressed data, LZ compression on
- sent data 906817 bytes 408.84 secs (2218 cps)
- sent data 906809 bytes 385.79 secs (2351 cps)
- sent data 906821 bytes 391.59 secs (2316 cps)
- received data 906945 bytes 357.23 secs (2539 cps)
- received data 906957 bytes 363.21 secs (2497 cps)
- received data 906949 bytes 366.45 secs (2475 cps)
- received data 906961 bytes 358.19 secs (2532 cps)
-
- WB <-> WB, PEP, compressed data, LZ compression on
- sent data 360885 bytes 206.04 secs (1751 cps)
- sent data 360885 bytes 213.65 secs (1689 cps)
-
- WB <-> WB, PEP, compressed data, compression off
- received data 123711 bytes 67.43 secs (1835 cps)
- received data 157017 bytes 85.29 secs (1841 cps)
- received data 153413 bytes 83.41 secs (1839 cps)
- received data 183755 bytes 99.56 secs (1846 cps)
- received data 194403 bytes 105.17 secs (1848 cps)
- received data 34405 bytes 19.62 secs (1754 cps)
- sent data 360885 bytes 182.15 secs (1981 cps)
- sent data 360885 bytes 185.00 secs (1951 cps)
- sent data 360885 bytes 183.97 secs (1962 cps)
- sent data 360885 bytes 184.28 secs (1958 cps)
-
- WB <-> WB, PEP, compressed data, V.42bis compression on (S191=6)
- sent data 360885 bytes 219.02 secs (1648 cps)
- received data 181929 bytes 99.50 secs (1828 cps)
- received data 178147 bytes 98.08 secs (1816 cps)
- received data 174170 bytes 92.91 secs (1875 cps)
- received data 159182 bytes 86.03 secs (1850 cps)
- received data 191382 bytes 105.49 secs (1814 cps)
- received data 180815 bytes 99.77 secs (1812 cps)
-
- WB <-> WB, PEP, uncompressed data, V.42bis compression on (S191=6)
- sent data 879886 bytes 415.41 secs (2118 cps)
-
- WB <-> WB, V.32bis, compressed data, MNP4, S111=0, S180=3, S190=0
- sent data 360885 bytes 279.55 secs (1291 cps)
-
- WB <-> WB, V.32bis, compressed data, MNP5, S111=0, S180=3, S190=1
- sent data 360885 bytes 306.89 secs (1176 cps)
-
- WB <-> WB, V.32bis, compressed data, V.42, S111=0, S180=2, S190=0
- sent data 360885 bytes 277.27 secs (1302 cps)
-
- WB <-> WB, V.32bis, compressed data, V.42bis, S111=0, S180=2, S190=1
- sent data 360885 bytes 304.50 secs (1185 cps)
-
- --
- # Monty Solomon / PO Box 2486 / Framingham, MA 01701-0405
- # monty%roscom@think.com
-