[This message was posted by Danilo Silveira of Greenline Financial Technologies <[email protected]> to the "4.4 Changes" discussion forum at http://fixprotocol.org/discuss/17. You can reply to it on-line at http://fixprotocol.org/discuss/read/097b1bac - PLEASE DO NOT REPLY BY MAIL.]
> Hi, Can you clarify more on where do you see this delay? Is this delay > in acknowledgement from your side or from your client side? We have been > using this option for long time and have not seen any issue. You want to > look at TCP dump and see if there are many packet resends due to > exceeding network latency or anything like that. Regards, Ashish > > > > Hi all, > > > > > > This is more a QuickFIX implementation doubt than a FIX doubt. > > > Anyone has experienced problems with disabling this QuickFIX socket > > > option? I'm having a problem that the messages are delaying to be > > > acknowledged. And I need to figure out where is the bottleneck. > > > > > > Thoughts? > > > > Under most "normal" scenarios, using setsockopt to enable TCP_NODELAY > > is a very good idea for FIX TCP sessions (no matter whether it is > > QuickFIX or not). There is an implication of a double-negative in your > > question, so I'm not exactly sure which way you are going from/to. > > Using a TCP FIX session without TCP_NODELAY enabled can cause > > occasional delays of up to 500mSec depending on the traffic patterns. > > I would recommend that most TCP FIX sessions use TCP_NODELAY enabled. > > The possible exception to this might be ultra high speed continuous > > message streaming such as market data where using TCP_NODELAY enabled > > could cause many "runt" packets which could conceivably make latency > > worse. In general, use TCP_NODELAY enabled for best TCP FIX > > performance. > > > > I hope this helps. > > > > JohnP The delay seems to be at my side, I am delaying on sending a TCP acknowledge for my connection partner (I am the acceptor). [You can unsubscribe from this discussion group by sending a message to mailto:[email protected]] --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Financial Information eXchange" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/fix-protocol?hl=en -~----------~----~----~----~------~----~------~--~---
