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- Path: news.ultranet.com!usenet
- From: "Albert P. Belle Isle" <belleisl@cerberus-sys.com>
- Newsgroups: alt.winsock.trumpet,alt.winsock,comp.dcom.modems
- Subject: Re: Trumpet vs. MS TCP/IP (Performance)
- Date: Sat, 30 Mar 1996 13:27:42 -0500
- Organization: Cerberus Systems, Inc.
- Message-ID: <315D7D1E.2127@cerberus-sys.com>
- References: <4jb773$9vs@adnetsol.adnetsol.com> <315ca9ca.68116322@news.mcs.net> <joec1101Dp2JBv.qz@netcom.com>
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-
- Joe wrote:
- >
- > I tried the win95 tcp/ip stack and found that my winsock apps (both 16
- > and 32 bit) ran *slower* than when running Trumpet 16 bit with 16 bit
- > apps. In addition, I encountered frequent "illegal operation" gpf's.
- > In my opinion, until and unless improvements are made in the win95
- > tcp/ip, the 16 bit Trumpet Winsock with 16 bit apps is the fastest and
- > most stable method.
- >
- > Good Luck,
- >
- > Joe
-
- Joe:
-
- As you know, the WinSock API end of a winsock.dll must be 32-bit to talk to 32-bit
- application programs that want to use its services to gather TCP data from the
- Internet.
-
- Many of these applications offer higher performance than 16-bit applications in
- manipulating that data once it's in the area of RAM allocated by the winsock as a
- "socket" for holding received data for that program.
-
- However, the "business end" of _any_ TCP/IP stack which gets data over a SLIP or PPP
- connection is *one* bit: an RS232 serial port connection to a modem.
-
- Consequently, while 32-bit TCP-data-using programs may paint your screen faster with
- data, they can't make your modem any faster in getting that data from the Internet <g>.
-
- In fact, the DOS7.0/Windows4.0 (Win95) TCP/IP stack's lower flexibility in tuning
- TCP/IP parameters for performance, coupled with its lack of easy-to-use Trace functions
- to tell you what's causing slow transfers, have caused many people to wait for the next
- upgrade.
-
- On the other hand, if you're already getting modem-limited speeds from the sites you
- surf most often, Win95 lets you use interesting applications that aren't available in
- 16-bit form.
-
- Like everything else in engineering, the "correct" choice is "it depends."
-
- Regards,
-
- Al
-
- --
- ==================================================================
- Albert P. Belle Isle
- Cerberus Systems, Inc.
-
- Al's Winsock Tuning FAQ -
- http://www.cerberus-sys.com/~belleisl/mtu_mss_rwin.html
- ==================================================================
-