NAN AsyncWorker vs libuv thread pool

[Bill Klein]

My understanding is that NAN's AsyncWorker makes use of libuv's thread pool which defaults to 4 threads. In my case, some of my node module's AsyncWorkers may run relatively long, though they are not CPU intensive, so I can't limit to 4 threads...

Is there any risk in increasing UV_THREADPOOL_SIZE to the max, apart from how my own AsyncWorkers behave? In the libuv documentation it says that, "the threadpool is global and shared across all event loops," so I assume that other things make use of it and will suffer from degraded performance if there are too many threads available to them...?

Thanks.