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Well, the issue is that the buffers are fixed for TPC and that is causing them some issues. I can see that but @bbockelm would need to address that as that part of the code is rather complicated and it's not exactly clear you can just change the buffer size without side-effects. As for the http buffer size, I agree with you, there is no reason to change that as they should use the xrd.buffers directive to enable maxi-buffers via a special option that I will relay to them and then use the xrootd.async segsize option to get the size they want for async I/O. So, for normal reads/writes we already have a solution. What we need is a solution for http TPC and @bbockelm has to weigh in on that. But even then, they still need a memcache layer to handle small application reads. All this will do is speed up file copies (i.e. xrdcp and TPC).

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