Don't the latest incarnations of ECL use the Bohem GC? Just asking...
MA Get Outlook for Android<https://aka.ms/ghei36> ________________________________ From: pro <pro-boun...@common-lisp.net> on behalf of Martin Cracauer <craca...@cons.org> Sent: Thursday, December 3, 2020 6:25:50 PM To: Discussion list for Common Lisp professionals <pro@common-lisp.net> Subject: Re: Call for Interest: Clojure (or Lisp?) Code Camp with BLM focus Pascal Costanza wrote on Thu, Dec 03, 2020 at 04:17:56PM +0100: > > > Parallel GC is no problem and implemented. > > > Which CL implementations have a parallel GC? Clasp (via Boehm GC and MPS). I thought SBCL was there, but I just checked, not yet. I think Google is pushing for a parallel GC instead, because of response times to their production monitoring. Another untapped source of performance is userfaultfd(2) in the Linux kernel. It allows those GCs that implement a write barrier using page protections SIGSEGV to use the faster userfaultfd interface instead (as opposed to those using a bitmap). This won't help concurrent GC, but parallel GC would benefit even more than single-thread GC because it uses faster system calls. Proof of concept is here: https://www.cons.org/cracauer/cracauer-userfaultfd.html Martin -- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Martin Cracauer <craca...@cons.org> http://www.cons.org/cracauer/
