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Drastically speedup client.read() operation #439
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Since the data being consumed by the reader thread is going to be read somewhere via read() APIs (that are known to be fair and call yield()), we can avoid the delay() when the buffer needs to be flushed by setting the reader thread priority to something lower than the main thread. To be tested on some real world applications (by now, tested with Ethernet/WiFi Client/Server "basic" examples)
Memory usage change @ 9619ec8
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giulcioffi
approved these changes
Apr 4, 2022
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Tested with Ethernet:
- without the patch: 187040 bytes in 75.6310, rate = 2.47 kbytes/second
- with the patch: 181118 bytes in 3.9838, rate = 45.46 kbytes/second
Some libraries don't call close() and expect the device will do it on its own when the server closes the connection. To fix this, the best thing to do would be either to use connectionKeepAlive() or to simply close() the client before conneting again. For backwards compatibility, let's start from scratch every time connect() is colled twice.
This was referenced Apr 5, 2022
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Memory usage change @ d30df6d
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Since the data being consumed by the reader thread is going to be read somewhere via read() APIs (that are known to be fair and call yield()), we can avoid the delay() when the buffer needs to be flushed by setting the reader thread priority to something lower than the main thread.
To be tested on some real world applications (by now, tested with Ethernet/WiFi Client/Server "basic" examples)
Fixes #438
@manchoz