Lots of good stuff today.

The new API cache daemon system is running great on the backend.  Right now it's only running against Cryptsy and BTC-e (mainly because I haven't updated the other exchanges yet to use the new system).  Those two exchanges alone are cacheing 542 API calls in real-time effortlessly.  The daemon thread monitor script is doing an excellent job of throttling the API calls(by spawning and removing parallel daemon scripts) to keep the age of the data at the desired setpoint.  
Tonight I should be able to update all the exchanges to use the new methods and get a full load test in.
Next on the plate is to get backend plugins running, at which time I'll be able to start storing trade history to the database again.

I've also drastically reduced the number of database queries.  Up until this point, I was storing the nonce for each account API in the database, querying to retrieve it each call, then querying again to increment the value.  With so many API calls, this was adding up to thousands of queries per second, which are now eliminated due to using a better method based on microtime instead.

The exchange landscape is really looking good lately. I've seen quite a few new exchanges popping up in the last month, almost all of them with a full trade API.  I fully expect to support 20+ exchanges by the time Rollerbot launches!

Other good news is that HHVM recently included mysqli support, so soon I will be running everything through the HHVM JIT compiler for a huge speed boost and better memory management.


Here is a screenshot of one of the daemons running in the background.  If you look across the bottom,  you'll see that the daemon spawned 22 parallel threads, with 5 symbols being queries per thread (this specific daemon is querying cryptsy for trade data).  If the queries take too long, then more threads are spawned until the average execution time is where it should be.

It looks excellent so far.
This could change trading for the better in a short time.
Keep up the great work I cannot wait to try it.

im so excited cannot wait to review this

Newest work I did for RollerBot!

Client: RollerBot
Project: Advanced trading platform
Type of logo:  Simple, professional, memorable and trendy.
Solvation Logo represents a roller, turn-over, never ending profit.  I've used colors and shapes that has associations with robot.

Any feedback is highly appreciated!

Currently I'm working on: 2 projects.
Am I available? YES!
Please write me a PM or email bitcrea@yahoo.com
My official graphic design thread: https://bt.irlbtc.com/view/444106.0

Precise and high quality work guaranteed!

Thanks to the excellent work by Bitcrea, Rollerbot now has a finalized logo (I only changes some of the color scheme to fit my tastes)!

great logo i like it

Just checking in while I have a brief moment.

I've done countless tests with HHVM now, and spent a lot of time talking to the HHVM developers.  Unfortunately, HHVM doesn't really fit my use case of having a lot going on in parallel - mainly due to the heavy memory overhead of HHVM.  As it doesn't support threading yet, I would have to spawn many hhvm instances which is just too resource-intensive.  So for now, I'm going to stick to the normal zend PHP interpreter.

I've spent the last few days doing a lot of benchmarking, and it has helped me come up with a plan for moving forward. 
Initially, I wanted to launch fully supporting every exchange out there.  Unfortunately due to resource allocation costs it would just cost way too much up front to provision the resources needed to process so much data.  What I may have to end up doing is launching supporting fewer exchanges so that membership costs help to get the provisions needed to enable the rest of them (I'm thinking of starting with 8-10 of the exchanges enabled, then bringing more in as the userbase grows (which is just basically flipping a switch in the database for each exchange).  This will balance my risk to the point of being manageable in the case of a slower-than-expected startup, while still offering way more than the competition.


With the benchmarking out of the way, I can continue forward with the programming, having a much clearer path ahead.  If anyone has input on which exchanges they would like to see starting up, it will be taken into consideration.

Back to work!

That last paragraph speaks volumes as to how many of us feel right now.  GoX was nothing but a ripoff and they are trying to figure out not how to give the BTC back to it's clients but keep it for themselves.

I cannot wait to try this out.

Hello,

would love to beta test this. Have linux shell experiance. Also potential customer

Thanks!