I know when i did some testing many moons ago with an IBMer, we saw pacing responds , like SNA pacing and vpacing going back forth between TSO and the PC .( emulator in this case ). How we found it ? The tired and true method ...a trace
Scott J Ford Software Engineer http://www.identityforge.com/ ________________________________ From: Thomas Berg <[email protected]> To: [email protected] Sent: Wednesday, September 19, 2012 10:03 AM Subject: SV: Why File transfer through TSO IND$FILE is slower than TCP/IP FTP ? Does that mean that when I use IND$FILE with a 64x128 screen it sends 8192 bytes at a time ? Regards, Thomas Berg _______________________________________________________ Thomas Berg Specialist AM/SM&S SWEDBANK AB (publ) > -----Ursprungligt meddelande----- > Från: IBM Mainframe Discussion List [mailto:[email protected]] > För McKown, John > Skickat: den 19 september 2012 14:39 > Till: [email protected] > Ämne: Re: Why File transfer through TSO IND$FILE is slower than TCP/IP > FTP ? < snip > > server which encodes the 3270 data stream. Also, then IND$FILE transfer > is limited to the size of your TSO screen. I.e. send one screen of > encoded data (at most 80x24, or 1920, bytes for a -2; 27*132==3564 for > a -5); wait and decode the response (protocol overhead); wash, rinse, > repeat until all data is transferred. The protocol and data translation > (if any) overhead on ftp is much less. > > The above is just my SWAG based on some knowledge of how IND$FILE works > internally. > > -- > John McKown > Systems Engineer IV > IT > > Administrative Services Group > > HealthMarkets(r) > > 9151 Boulevard 26 * N. Richland Hills * TX 76010 > (817) 255-3225 phone * > [email protected] * http://www.healthmarkets.com/ > > Confidentiality Notice: This e-mail message may contain confidential or > proprietary information. If you are not the intended recipient, please > contact the sender by reply e-mail and destroy all copies of the > original message. HealthMarkets(r) is the brand name for products > underwritten and issued by the insurance subsidiaries of HealthMarkets, > Inc. -The Chesapeake Life Insurance Company(r), Mid-West National Life > Insurance Company of TennesseeSM and The MEGA Life and Health Insurance > Company.SM > > > > -----Original Message----- > > From: IBM Mainframe Discussion List [mailto:[email protected]] > > On Behalf Of Tsai Laurence > > Sent: Wednesday, September 19, 2012 6:35 AM > > To: [email protected] > > Subject: Why File transfer through TSO IND$FILE is slower than TCP/IP > > FTP ? > > > > Dear listers , > > as the subject, test file transfer through TSO IND$FILE & TCP/IP FTP > > , and found TSO IND$FILE is much slower than FTP. Any idea why ? > > > > > > Regards, > > Laurence > > > > --------------------------------------------------------------------- > - > > For IBM-MAIN subscribe / signoff / archive access instructions, send > > email to [email protected] with the message: INFO IBM-MAIN > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, send > email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
