ferizs@neuro.neuro.duke.edu (Feri Zsuppan) (01/29/91)
Newsgroups: comp.windows.ms Subject: Re: Severe performance degradation with 386 enhanced mode, any tips? Summary: Expires: References: <1991Jan16.224240.14201@news.iastate.edu> <7311.279bff79@eva.slu.se> <10430@bunny.GTE.COM> Sender: Reply-To: ferizs@neuro.duke.edu (Feri Zsuppan) Followup-To: Distribution: Organization: Dept. of Neurobiology, Duke University Medical Center Keywords: In article <10430@bunny.GTE.COM> sc05@harvey.gte.com (Shih-Chio Chang) writes: > >I was following the discussion and did some experiments for myself. I have >found a possible cause that nobody had mentioned. In my case, I am using >a Compaq 386/20 and X11/AT with a 3Com305 card for ether net access. >I have found that the Norton (ver. 4.5) SI index to be around 24 before >window was launched, and stayed around that figure in full-screen DOS session >in window enhanced mode. However, the SI index dropped to around 20 for >windowed DOS session. Then the biggest degradation came when I launched >NetTask, the resident network driver used by X11/AT. The index dropped to >around 15 in either windowed or full-screen DOS sessions. > >I do not have experience with other network drivers (I used PC-NFS and >X-View for a while but they basically do not work with windows, and has the >unfortunate limitation of 7 windows maximum posed by PC-NFS), but I would >imagine similar situations may occur. You are absolutely right. I have had the same severe performance degradation with FTP's PC/TCP on 386-25 in enhanced mode. You can see how slow by simply watching file manager building up directory tree on a logical drive. Interestingly the Maryland's NFS doesn't have this severe degradation. I am using 3c503 Ethernet board. I have tried to get answer from FTP without any success. So here we have a question to answer: Severe performance degradation, but only with s_o_m_e NFS. Any hints? Feri