andrewcanis

7 ms·

1.
by andrewcanis 7y ago
I'm very interested in this 6-page memo, I also found during my PhD that writing can really help clarify thinking. You may think you have a very clear idea in your mind but then when you write this to paper, many gaps can suddenly appe
2.
by andrewcanis 8y ago
Nothing was dialed back. My previous post just confirmed that our elasticache was not misconfigured. I used the latest github memcached with 14 worker threads as you suggested and your benchmark script gives the same results that we reporte
3.
by andrewcanis 8y ago
Thanks for the details on how to use your benchmark script and for taking the time to investigate this. I hadn’t heard of your benchmark before and mc-crusher seems to work a bit differently than memtier_benchmark. First a few significant d
4.
by andrewcanis 8y ago
I'm still seeing similar results (~1M req/sec) after compiling your latest version of memcached from github and running with 16 worker threads. I just spun up two r4.4xlarge instances (one for client and one for the memcached ser
5.
by andrewcanis 8y ago
Our assumption was that elasticache would be highly optimized by Amazon. Remember that these are virtual machines which means limitations such as packet per second throttling. What specific configuration options do you think are missing? In
6.
by andrewcanis 8y ago
Do you have a source showing elasticache running faster than this? For example, Redis labs was only able to achieve 10M req/sec by using 6 m4.16xlarge instances which are double the price of the CPU instance we used: https:/&#x2F
7.
by andrewcanis 8y ago
Sounds interesting, are there any papers or public details that you could point me to with more technical information about this Alibaba RDMA-based memcached project? Alibaba also has FPGA instances available and we have been investigating
8.
by andrewcanis 8y ago
Although there are Ethernet transceivers on the AWS FPGAs (these are Xilinx UltraScale+ VU9P FPGAs) they are unused and not connected directly to the AWS network. Instead the FPGAs are connected over PCIe to a host server, which has a stand
9.
by andrewcanis 8y ago
I wouldn't characterize Elasticache as running slow, a single instance in this case is handling 1.3M request/sec. But we can be 9X faster by batching multiple requests per packet and then offloading the TCP network stack and memca
10.
by andrewcanis 8y ago
Interesting, what synthesis settings have you found have the most impact? I have also seen FPGA designers trying different seeds when closing timing. In this case, AWS provides an FPGA shell for external interfaces that has a maximum clock
11.
by andrewcanis 8y ago
Our startup is working on accelerators using FPGAs on AWS including memcached. Using a single AWS F1 (FPGA) instance, our Memcached accelerator achieves over 11 million ops/sec at less than 300 microsecond latency. Compared to ElastiCa
12.
by andrewcanis 14y ago
If anyone is curious how the code actually works, I've commented up a version below: <script type="text/javascript"> function matrix() { // initialize variables for (s = window.screen, w = q.w
13.
by andrewcanis 14y ago
Any recommendations for keeping track of email support requests? I'm getting beyond the point where I can just reply straight from gmail. Ideally something I can just self host to avoid a monthly fee, but I'd be open to paying for a really
14.
Why is it so expensive to buy or sell a house in America?(economist.com)
3 points by andrewcanis 14y ago|0 comments
15.
by andrewcanis 15y ago
Great idea! I would love a valentines day bootstrap theme.
16.
by andrewcanis 15y ago
It's actually very easy to hack the code. I've created a "God-mode" version that you can play on github: http://acanis.github.com/Minicraft-God-Mode/
17.
by andrewcanis 15y ago
Try this version on github, you can compile and run the source with 'ant run': https://github.com/skeeto/Minicraft
18.
by andrewcanis 15y ago
Whenever I hear doomsayers like this I try to remember Warren Buffett's advice, "Be fearful when others are greedy and greedy when others are fearful."
19.
by andrewcanis 15y ago
This technology has the potential to save so many lives. Does anyone know how much these cars cost? I would expect the radar system and servers to be pretty expensive. Presumably the higher cost could be offset by lower insurance rates.
20.
by andrewcanis 15y ago
This is really good to know. I always seem to come up with ideas that have already been done. But it's possible my new approach would be better than the competition, like TweetingMachine.