On Thu, Jun 06, 2019 at 09:23:12PM +0200, Gustaf Neumann wrote: > The main question is, why are you interested in async writes?
My original use case wasn't clear? I have one thread busy processing data and sending it various places. I want to log some of that data to a bunch of files, probably 10 to 100 different small files at any given time. Each write is only a small amount of data, but for easier use later I'd rather keep the data organized into separate files, rather than e.g. dump it all into one great big file. The easiest thing to do is call Tcl's open, puts, close every single time I need to write data, but that's blocking, and I'm worried that it could easily degrade the latency of my main processing thread. I don't necessarily need async IO to the files, but I WOULD like to get the latency of writing the files out of the main thread. If I create my own writer thread for this, it could do the writes synchronously (blocking), that would still accomplish my main goal of getting the file write latency out of my main thread. However, (particularly given my small writes to many files), clearly asynchronous file IO should be more efficient, and scale better, so I'd like to understand how to do that. The ease of simply calling "fconfigure" on a file handle is attractive, but I don't yet understand what else I'd need to do to make that seemingly simple approach actually work in the NaviServer context. -- Andrew Piskorski <a...@piskorski.com> _______________________________________________ naviserver-devel mailing list naviserver-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/naviserver-devel
