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- Path: news.lth.se!usenet
- From: cid85jol@lustudat.student.lu.se (Joakim Lindfors)
- Newsgroups: comp.sys.amiga.networking
- Subject: Re: Speeding up napsaterm
- Date: 2 Jan 1996 19:49:03 GMT
- Organization: Lund Institute of Technology, Sweden
- Message-ID: <2243.6572T1089T2310@lustudat.student.lu.se>
- References: <4bvv60$7r0@spool.cs.wisc.edu>
- NNTP-Posting-Host: cid85jol.student.lth.se
- X-Newsreader: THOR 2.2 (Amiga;TCP/IP) *UNREGISTERED*
-
- >I'm looking for advice on how to speed up napsaterm.
-
- >I have a 1200 and use AmiTCP/IP to work from home. I usually have
- >3-4 napsaterm sessions running at once.
-
- >For me the best measure of speed isn't ftp transfer rates but typing
- >speed. Can the terminal program keep up with me? Napsaterm can't.
- >It doesn't lag to far behind but it is annoying and gets worse when
- >I use a program like tin or elm in it.
-
- >My current setup is:
-
- >Stock Amiga 1200 with 4MB ram and an FPU on a MBX1200Z card
- >Supra Fax Modem 144 LC
- >AmiTCP/IP 4.0 demo
- >PPP device 1.30 (020 optimized registered version)
- > (options for PPP are 7WIRE and MTU=1500)
- >serial port set to 57600 and controlled by artser.device v 37.6
- >Napsaterm 4.1
-
- >I have a good 14.4 connection to a Telebit Netblazer.
-
- >I've experimented with different serial.devices (including 8n1.device)
- >and found no noticable difference.
-
- >So which of these options will produce the most speed-up:
- >- AmiTCP 4.2 and the optimized 020 code
- >- a 28.8 modem (My ISP has 28.8 modems)
- >- an 030 accelerator
-
- >or other suggestions. . . . Ultimately I'd like my rlogin or telnet
- >session to be as responsive as a local shell window. Is that only
- >possible with a direct ethernet connection? It's only text. . . .
-
- >Also, is there an alternative to Napsaterm? (Preferably one with
- >scrollbars.)
-
- >Thanks,
- >Robert Jacob
- >rob@ssec.wisc.edu
-
- PPP transfer data in 'packets' and the MTU setting controls how big these
- packets are. The time needed to send a packet is about equal to the response
- time. Your 14.4k modem needs about 1-2 seconds to send a packet of 1500 bytes.
- Lowering MTU to 750 will almost halve response time. You can set it even lower
- but keep in mind that the PPP protocol add some overhead to the packets (about
- 40 bytes I think), so your FTP transfers will really suffer.
-
- A 28.8k modem will further halve the response time.
- A 030 accelerator will not help here.
- I don't think AmiTCP4.2 will do anything noticable.
-
- Regarding your wish for the Ultimately responsive telnet, It can't really be
- done, because of the packet nature of current protocols.
-
- (PPP,SLIP, CSLIP, MLINK, DNET are all packet oriented protocols.)
-
-
- Happy New Year!
-
- Joakim Lindfors, cid85jol@lustudat.student.lu.se
-
-