I have to say I've been using IQ Feed for about 6 months with absolutely zero delay issues.
--- In [email protected], "przemyslawuk" <[EMAIL PROTECTED]> wrote: > > Hi, > I have exactly the same problem. I t very frustrating to watch my > charts moving, updating for 3 minutes after market close !!! > And it is with 4 symbols only. > I don't think the delay is AB fault (although I get a lot of problems > with real time data feed which are definitively AB problems). > I had IQfeed subscription to AB data feed and because of that delay > I decided to switch to QuoteTracker data feed from IQFeed and I still > get that delay, even with only one symbol streaming. > You can try it yourself, QT is free and will work with AB data feed. > Add one symbol to the portfolio and at the end of the day you will get > that delay. In my case it actually works well until lunch and then the > delay starts increasing. > > I was bombarding IQFeed with emails but they obviously say it is AB > or my internet connection. I tryied with 3 different internet links > and still the same problems. So it is IQFeed. > It was working fine before this volatility came to the markets and > whats irritating is that the problem doesn't go away on the "quiet" > days now. > > > --- In [email protected], "sidhartha70" <sidhartha70@> wrote: > > > > TJ is. Why? > > > > --- In [email protected], "gsmservplus" <domantas.rudys@> > > wrote: > > > > > > who is developing IQFeeD plugin for AB? > > > > > > --- In [email protected], "Tomasz Janeczko" <groups@> > > > wrote: > > > > > > > > You can also backfill after market close. And no, it is not AB > > > fault or bug. > > > > AmiBroker just displays what it receives from data source. > > > > Data quality is solely dependent on data vendor. > > > > > > > > Best regards, > > > > Tomasz Janeczko > > > > amibroker.com > > > > ----- Original Message ----- > > > > From: "gsmservplus" <domantas.rudys@> > > > > To: <[email protected]> > > > > Sent: Sunday, December 07, 2008 3:14 PM > > > > Subject: [amibroker] Re: delays on iqfeed? > > > > > > > > > > > > > > > > > > tomasz, > > > > > > > > > > not everybody can do backfill before market open.i switch on my > > > pc at > > > > > 12 ET and i`ve got 200 ticker in my database. so, is it only > > > chance > > > > > to solve this problem to do like you said? > > > > > and one more question.is it AB fault? because IQfeed cust serv > > > said > > > > > is everything alright from they side. > > > > > any chance to fix it in the future if its AB bug?because it is > > > > > nightmare, i f***d my database last thursday doing backfill like > > > you > > > > > said through AA explore and wait for backfill ticked,but at 12 > > > > > ET.half of my database was with a wrong data.and even when i try > > > to > > > > > backfill it today wrong data stays.only "force to backfill" could > > > > > help me.lost half a day to fix my database. > > > > > thanks for your time > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > --- In [email protected], "Tomasz Janeczko" <groups@> > > > > > wrote: > > > > >> > > > > >> Hello, > > > > >> > > > > >> It was discussed in the past. Correct procedure with IQFeed is > > > > >> to start before market open, run single scan with "wait for > > > > > backfill" > > > > >> turned on. Do this BEFORE market open so IQFeed works faster. > > > > >> > > > > >> Once all symbols are backfilled and up-to-date you can turn this > > > > >> check box off and all symbols would stream and kept up-to-date. > > > > >> > > > > >> Please keep in mind that depending on symbols you use there can > > > > >> be few hundreds of ticks per second per symbol to be processed, > > > > >> so if you are tracking say 500 symbols, on high-activity periods > > > > >> (such as market open) you can receive as many as 50000 updates > > > per > > > > > second. > > > > >> Each update is about 100 bytes, so to transfer such amount of > > > data > > > > >> you need 50000*100 BYTES per second and that is about 50 Mbps, > > > > >> so 3Mbps internet connection is not enough to keep up with such > > > a > > > > > stream. > > > > >> (remember that connection speeds are expressed in BITS per > > > second, > > > > >> not bytes, and it takes 8 BITS to transfer one byte). > > > > >> > > > > >> Best regards, > > > > >> Tomasz Janeczko > > > > >> amibroker.com > > > > >> ----- Original Message ----- > > > > >> From: "gsmservplus" <domantas.rudys@> > > > > >> To: <[email protected]> > > > > >> Sent: Saturday, December 06, 2008 12:09 AM > > > > >> Subject: [amibroker] Re: delays on iqfeed? > > > > >> > > > > >> > > > > >> > could we expect any comments about this problem from Tomazs > > > > > Janeczko? > > > > >> > thanks > > > > >> > > > > > >> > --- In [email protected], "claudecaruana" > > > > > <claudecaruana@> > > > > >> > wrote: > > > > >> >> > > > > >> >> Hi, > > > > >> >> > > > > >> >> I too experienced the same 2 problems. > > > > >> >> > > > > >> >> As regards to the backfill problem, I resolved it by > > > backfilling > > > > >> >> through the AA window first, as opposed to manually pacing > > > > > through > > > > >> > the > > > > >> >> symbols: I run a simple exploration with "wait for backfill" > > > > >> > switched > > > > >> >> on, on all quotations. Once this is done all quotes are > > > updated > > > > > and > > > > >> >> streaming. > > > > >> >> > > > > >> >> I have not yet found a solution for the IQFeed delay. All I > > > can > > > > > say > > > > >> > is > > > > >> >> that it appears when there are a considerable number of > > > streaming > > > > >> >> symbols - if I have 5-10 symbols only which are streaming > > > then > > > > > the > > > > >> >> data is fine, but if I run the backfill on all my database > > > > > (approx > > > > >> > 450 > > > > >> >> symbols) then I am also experiencing a huge delay. > > > > >> >> > > > > >> >> I do not think this delay is due to the connection speed - I > > > am > > > > >> >> currently putting it down to the processing speed of my PC > > > and am > > > > >> >> looking to upgrade, but I am not sure this will resolve the > > > > > problem. > > > > >> >> > > > > >> >> I currently work around this by only subscribing to the > > > symbols > > > > > I > > > > >> > will > > > > >> >> be using for the day (by running the above routine I > > > mentioned > > > > > only > > > > >> > on > > > > >> >> a watchlist), then I update all the other symbols at the end > > > of > > > > > the > > > > >> >> day in order to stay updated from a historical perspective. > > > > >> >> > > > > >> >> hope this helps. Let me know if you find out something else > > > > > about > > > > >> > the > > > > >> >> IQFeed delay :) > > > > >> >> > > > > >> >> claude > > > > >> >> > > > > >> >> > > > > >> >> --- In [email protected], "gsmservplus" > > > <domantas.rudys@> > > > > >> >> wrote: > > > > >> >> > > > > > >> >> > hello, > > > > >> >> > > > > > >> >> > AB 5.20,windows vista,iqfeed client 4.4.0.3,virgin uk > > > > > broadband > > > > >> >> > internet provider with up to 3 Mb speed. > > > > >> >> > > > > > >> >> > my problem is: when i load my iqfeed data base after some > > > time > > > > > i > > > > >> > get > > > > >> >> > time delays on my stocks, forex ant futures RT data compare > > > > > with > > > > >> > my > > > > >> >> > PC time.every time delays are different from couple secs to > > > > > over > > > > >> > the > > > > >> >> > minute.as longer i`ve got AB and IQfeed opened as bigger > > > delay > > > > >> > is.but > > > > >> >> > it happens not always,but very often.IQfeed said is > > > everything > > > > >> >> > alright with my data and could be problem with software or > > > ISP. > > > > >> >> > p.s. time difference between IB TWS and my PC time is only > > > > > couple > > > > >> > (1-3 > > > > >> >> > sec.)seconds and never changes. > > > > >> >> > > > > > >> >> > > > > > >> >> > another problem is: when i start AB and start go through my > > > > >> > tickers > > > > >> >> > to backfill current day data(as i understand it can > > > backfill > > > > > only > > > > >> > 5 > > > > >> >> > tickers at the time, so every time when i start AB i`ve got > > > to > > > > > go > > > > >> >> > through all my database,i have around 200 tickers database) > > > > >> > sometimes > > > > >> >> > some tiskers gives wrong data, i mean, only one very long > > > > > candle > > > > >> > for > > > > >> >> > current with huge volume in hourly chart.after i > > > start "force > > > > >> >> > backfill"for those wrong ticker it gives right data > > > then.and > > > > >> > again it > > > > >> >> > happens not always, but very often. and IQ feed > > > cust.service > > > > >> > told me > > > > >> >> > could be problem with AB. > > > > >> >> > > > > > >> >> > any ideas about those two problems? thanks > > > > >> >> > > > > > >> >> > > > > >> > > > > > >> > > > > > >> > > > > > >> > ------------------------------------ > > > > >> > > > > > >> > **** IMPORTANT **** > > > > >> > This group is for the discussion between users only. > > > > >> > This is *NOT* technical support channel. > > > > >> > > > > > >> > ********************* > > > > >> > TO GET TECHNICAL SUPPORT from AmiBroker please send an e-mail > > > > > directly to > > > > >> > SUPPORT {at} amibroker.com > > > > >> > ********************* > > > > >> > > > > > >> > For NEW RELEASE ANNOUNCEMENTS and other news always check > > > DEVLOG: > > > > >> > http://www.amibroker.com/devlog/ > > > > >> > > > > > >> > For other support material please check also: > > > > >> > http://www.amibroker.com/support.html > > > > >> > > > > > >> > ********************************* > > > > >> > Yahoo! Groups Links > > > > >> > > > > > >> > > > > > >> > > > > > >> > > > > > > > > > > > > > > > > > > > > ------------------------------------ > > > > > > > > > > **** IMPORTANT **** > > > > > This group is for the discussion between users only. > > > > > This is *NOT* technical support channel. > > > > > > > > > > ********************* > > > > > TO GET TECHNICAL SUPPORT from AmiBroker please send an e-mail > > > directly to > > > > > SUPPORT {at} amibroker.com > > > > > ********************* > > > > > > > > > > For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG: > > > > > http://www.amibroker.com/devlog/ > > > > > > > > > > For other support material please check also: > > > > > http://www.amibroker.com/support.html > > > > > > > > > > ********************************* > > > > > Yahoo! Groups Links > > > > > > > > > > > > > > > > > > > > > > > > >
