There was a post within the past year about FTP being slow. It came down to reverse DNS lookups I think. Just something to look up perhaps.
- KB ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ On Wednesday, October 27th, 2021 at 12:03 AM, Charles Mills <[email protected]> wrote: > Questions for anyone who has used the z/OS FTP API: > > Are you seeing poor performance? For example, we are seeing FAPI_INIT taking > > about four seconds (whereas the real FTP client starts up almost > > immediately). We are seeing a sequence of four RMDIR's taking about four > > seconds (on a local connection where the real FTP client does it effectively > > instantaneously). > > A particular set of functionality -- start to finish -- takes about seven > > seconds with the real FTP client. A comparable functionality -- not exactly > > the same, but roughly the same -- takes 31 seconds with the FTP API. > > Is this what others are seeing? Has anyone discovered any particular > > gotcha's? The programmer was loading the stub dynamically rather than > > statically, but fixing that only knocked it down from 40 seconds to 31. > > This is on a z14 under V2R4. > > Charles > > -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- > > 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
