DTN IQFeed, DTN.IQ, DTN ProphetX Support Forums

Join the 80,000 other DTN customers who enjoy the fastest, most reliable data available. There is no better value than DTN!

(Move your cursor to this area to pause scrolling)

"Just a quick one to say I'm very impressed so far :) The documentation for developers is excellent and I've quickly managed to get an app written to do historical downloads. The system is very robust and pretty quick considering the extent of data that's available. The support guys have been very helpful too, in combination with the forums it's been plain sailing so far!" - Comment from Adam

"I had always used ******* but for the past 2 weeks have been trying DTN IQFeed. Customer support has been extraordinary. They call just to make sure your problem hasn't recurred." - Comment from Public Forum

"Very impressed with the quality of your feed - ******* is a real donkey in comparison." - Comment from A.C. via Email

"If you are serious about your trading I would not rely on IB data for serious daytrading. Took me a while to justify the cost of IQ Feed and in the end, it's just a 2 point stop on ES. Better safe than sorry" - Comment from Public Forum

"I was on the phone with a friend who uses CQG and right after the Fed announcement, CQG was as much as 30 seconds behind DTN.IQ. Some quotes were off by as much as 15-18 cents. Your feed never missed a beat." - Comment from Roger

"It’s so nice to be working with real professionals!" - Comment from Len

"Everything is working great with the API. I love it." - Comment from Calvin

"If someone needs the best quality data and backfill beyond what their broker provides at a rate that is the best in the industry, I highly recommend IQFeed." - Comment from Josh via Public Forum

"Boy, probably spent a thousand hours trying to get ******* API to work right. And now two hours to have something running with IQFeed. Hmmm, guess I was pretty stupid to fight rather than switch all this time. And have gotten more customer service from you guys already than total from them… in five years." - Comment from Jim

"This is an excellent value, the system is generous (allowing for 500 stocks) and stable (and really is tick-by-tick), and the support is fantastic." - Comment from Shirin via Email

Home

Recent Posts

Information on DTN's Industries:
DTN Oil & Gas | DTN Trading | DTN Agriculture | DTN Weather

DTN.IQ/IQFeed on Twitter
DTN News and Analysis on Twitter

»Forums Index »Archive (2017 and earlier) »IQFeed Developer Support »Can only pass the trade Q message?

Author	Topic: Can only pass the trade Q message? (2 messages, Page 1 of 1)
jxz1995 -Interested User- Posts: 24 Joined: Jan 9, 2006	Posted: Mar 2, 2007 01:28 PM Msg. 1 of 2 Hi Support, We are experiencing high CPU usage of iqconnect too just like what the topic (http://forums.dtn.com/index.cfm?page=topic&topicID=1442&start=1) mentioned. We also noticed that the iqconnect using 95% for 10 seconds a couple of time in the busy periods which consuming around 50% of CPU. In the Q message, field #18 "Time" format HH:MMc. We are checking if the c is t or T and discard ohers. Is there any way to only receive trading Q message to reduce the iqconnect usage and thus to reduce the CPU usage? Besides we are suggesting somthing, is DTN doing some lab testing to come up with best pratice, like iqfeedY or socket (asyn calling receive buffer should be small or bigger) or using timer to receive. Thanks, Jim
DTN_Steve_S -DTN Guru- Posts: 2093 Joined: Nov 21, 2005	Posted: Mar 2, 2007 02:11 PM Msg. 2 of 2 There is no way to stop IQFeed from sending the bids and asks. It should be possible to add this as an option in a future release. We are certainly doing lab testing to make performance better in all aspects of the feed. The most recent release (4.2.0.7) is the best performing version of the 4.x series. If you have not made that update yet, I would certainly recommend it. Can you post the specs of the system you are currently using for IQFeed?