From b43ea6ca9b24067ee5d4775383a09c46233119df Mon Sep 17 00:00:00 2001 From: Samuel Thibault Date: Sun, 17 Mar 2013 13:29:39 +0100 Subject: Categorize FAQs more --- faq/support/smp.mdwn | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 faq/support/smp.mdwn (limited to 'faq/support/smp.mdwn') diff --git a/faq/support/smp.mdwn b/faq/support/smp.mdwn new file mode 100644 index 00000000..e95edcd2 --- /dev/null +++ b/faq/support/smp.mdwn @@ -0,0 +1,28 @@ +[[!meta copyright="Copyright © 2009, 2011 Free Software Foundation, Inc."]] + +[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable +id="license" text="Permission is granted to copy, distribute and/or modify this +document under the terms of the GNU Free Documentation License, Version 1.2 or +any later version published by the Free Software Foundation; with no Invariant +Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license +is included in the section entitled [[GNU Free Documentation +License|/fdl]]."]]"""]] + +[[!meta title="Does GNU/Hurd support SMP/Multicore?"]] + +The Hurd servers themselves are multithreaded, so they should be able to take benefit of the parallelism brought by SMP/Multicore boxes. This has however never been tested yet because of the following. + +[[microkernel/Mach]] used to be running on SMP boxes like the [[!wikipedia +Intel_iPSC/860]], so principally has the required infrastructure. It has +however not yet been enhanced to support nowadays' SMP standards like ACPI, +etc. Also, [[GNU Mach|microkernel/mach/gnumach]]'s Linux device driver glue +code likely isn't SMP-safe. As this glue code layer is not used in the +[[microkernel/mach/gnumach/ports/Xen]] port of GNU Mach, the plan is to try it +in this enviroment first. + +[[!tag open_issue_gnumach open_issue_xen]] + +That is why for now GNU/Hurd will only use one logical processor (i.e. one core or one thread, depending on the socket type). + +Once this issue is solved, there are follow-up issues about +[[open_issues/multiprocessing]] and [[open_issues/multithreading]]. -- cgit v1.2.3