Date: Tue, 27 Jul 2010 20:33:50 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/amd64/include vmparam.h src/sys/arm/include vmparam.h src/sys/i386/include vmparam.h src/sys/ia64/include vmparam.h src/sys/mips/include vmparam.h src/sys/powerpc/include vmparam.h src/sys/sparc64/include vmparam.h src/sys/sun4v/include ... Message-ID: <201007272035.o6RKZ0ch008899@repoman.freebsd.org>
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jhb 2010-07-27 20:33:50 UTC FreeBSD src repository Modified files: sys/amd64/include vmparam.h sys/arm/include vmparam.h sys/i386/include vmparam.h sys/ia64/include vmparam.h sys/mips/include vmparam.h sys/powerpc/include vmparam.h sys/sparc64/include vmparam.h sys/sun4v/include vmparam.h sys/sys pcpu.h sys/vm vm_phys.c vm_phys.h Log: SVN rev 210550 on 2010-07-27 20:33:50Z by jhb Very rough first cut at NUMA support for the physical page allocator. For now it uses a very dumb first-touch allocation policy. This will change in the future. - Each architecture indicates the maximum number of supported memory domains via a new VM_NDOMAIN parameter in <machine/vmparam.h>. - Each cpu now has a PCPU_GET(domain) member to indicate the memory domain a CPU belongs to. Domain values are dense and numbered from 0. - When a platform supports multiple domains, the default freelist (VM_FREELIST_DEFAULT) is split up into N freelists, one for each domain. The MD code is required to populate an array of mem_affinity structures. Each entry in the array defines a range of memory (start and end) and a domain for the range. Multiple entries may be present for a single domain. The list is terminated by an entry where all fields are zero. This array of structures is used to split up phys_avail[] regions that fall in VM_FREELIST_DEFAULT into per-domain freelists. - Each memory domain has a separate lookup-array of freelists that is used when fulfulling a physical memory allocation. Right now the per-domain freelists are listed in a round-robin order for each domain. In the future a table such as the ACPI SLIT table may be used to order the per-domain lookup lists based on the penalty for each memory domain relative to a specific domain. The lookup lists may be examined via a new vm.phys.lookup_lists sysctl. - The first-touch policy is implemented by using PCPU_GET(domain) to pick a lookup list when allocating memory. Reviewed by: alc Revision Changes Path 1.61 +7 -0 src/sys/amd64/include/vmparam.h 1.15 +7 -0 src/sys/arm/include/vmparam.h 1.50 +7 -0 src/sys/i386/include/vmparam.h 1.22 +7 -0 src/sys/ia64/include/vmparam.h 1.8 +7 -0 src/sys/mips/include/vmparam.h 1.19 +7 -0 src/sys/powerpc/include/vmparam.h 1.22 +7 -0 src/sys/sparc64/include/vmparam.h 1.8 +7 -0 src/sys/sun4v/include/vmparam.h 1.45 +1 -0 src/sys/sys/pcpu.h 1.15 +140 -7 src/sys/vm/vm_phys.c 1.8 +9 -0 src/sys/vm/vm_phys.h
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