Date: Thu, 11 Apr 2019 12:12:46 +0100 From: Raphael Cohn <raphael.cohn@...rmmq.com> To: musl@...ts.openwall.com Subject: Thread-local memory for thread structures Dear List, I'm playing around with allocating 100s of bytes of TLS memory for various purposes. Something I noticed in the code for creating the mmap'd memory for TLS is that it does not (quite reasonably) assign it a NUMA memory policy. I'd like to assign a NUMA memory policy to the memory used for managing a thread. Is there anything 'underhanded' I can do to find out its location and size? I realize anything is likely to be brittle. Ideally what I'd like is a 'set NUMA memory policy of this thead's mmap'd management memory to the local NUMA node [once I've scheduled it to run a particular set of CPUs]. Any suggestions? Raph
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