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1
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1answer
208 views

Reliably running background operations

I'm looking for a recommendation on how to reliably run background operations. I have many servers posting operation messages to AWS SQS, and I have another server which will run these CPU intensive ...
0
votes
1answer
140 views

epoll timeout configuration in lighttpd

Is there a configuration option to tune epoll timeout in lighttpd? I'm developing an embedded Linux (2.6) device, with lighttpd 1.4.30. And I'm observing the following issue: even when the system is ...
0
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2answers
62 views

Polling performance on shared host [closed]

I am planning on writing a small browser game. The webserver is a shared server, with no root / install possible. I want to use AJAX for client/server communication. There will be 12 players. So ...
2
votes
1answer
118 views

Monitor a web service hosted at http url [closed]

I am thinking of a strategies to monitor a web service hosted at http url. I want to be able to know if it is up or down. I am aware of polling but wondering if there are any other non obvious ...
17
votes
5answers
5k views

What network loads require NIC polling vs interrupts?

Does anyone have some data or basic calculations that can answer when frame coalescing (NAPI) is required and when a single interrupt per frame is sufficient? My hardware: IBM BladeServer HS22, ...
4
votes
1answer
8k views

NAPI vs Adaptive Interrupts

Could anyone please explain how two following technologies are used to mitigate interrupt overhead under high networking load? Adaptive-rx/Adaptive-tx, and NAPI; I would appreciate an answer that ...
0
votes
1answer
440 views

HP Network Automation custom drivers

I installed a demo for HP Network Automation last week and the network device I am trying to interface with is not listed in the "Supported Devices Matrix" Apparently there is a way to design a custom ...
0
votes
1answer
212 views

multi player client server game - polling - wamp [closed]

Let's say I make a client-server application. A simple game for example. Where each client polls the server every half a minute. How many clients is it possible to have before it overlaods a wamp ...
1
vote
1answer
118 views

How would you get a list of all the applications in use at your company?

I'm responsible for maintaining a list of all the applications in my company (about 250). The range is from HR systems that track 80k employees, to manufacturing-type systems responsible for hundreds ...