Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Christoph Lameter b263295dbf x86: 64-bit, make sparsemem vmemmap the only memory model ... Use sparsemem as the only memory model for UP, SMP and NUMA. Measurements indicate that DISCONTIGMEM has a higher overhead than sparsemem. And FLATMEMs benefits are minimal. So I think its best to simply standardize on sparsemem. Results of page allocator tests (test can be had via git from slab git tree branch tests) Measurements in cycle counts. 1000 allocations were performed and then the average cycle count was calculated. Order FlatMem Discontig SparseMem 0 639 665 641 1 567 647 593 2 679 774 692 3 763 967 781 4 961 1501 962 5 1356 2344 1392 6 2224 3982 2336 7 4869 7225 5074 8 12500 14048 12732 9 27926 28223 28165 10 58578 58714 58682 (Note that FlatMem is an SMP config and the rest NUMA configurations) Memory use: SMP Sparsemem ------------- Kernel size: text data bss dec hex filename 3849268 397739 1264856 5511863 541ab7 vmlinux total used free shared buffers cached Mem: 8242252 41164 8201088 0 352 11512 -/+ buffers/cache: 29300 8212952 Swap: 9775512 0 9775512 SMP Flatmem ----------- Kernel size: text data bss dec hex filename 3844612 397739 1264536 5506887 540747 vmlinux So 4.5k growth in text size vs. FLATMEM. total used free shared buffers cached Mem: 8244052 40544 8203508 0 352 11484 -/+ buffers/cache: 28708 8215344 2k growth in overall memory use after boot. NUMA discontig: text data bss dec hex filename 3888124 470659 1276504 5635287 55fcd7 vmlinux total used free shared buffers cached Mem: 8256256 56908 8199348 0 352 11496 -/+ buffers/cache: 45060 8211196 Swap: 9775512 0 9775512 NUMA sparse: text data bss dec hex filename 3896428 470659 1276824 5643911 561e87 vmlinux 8k text growth. Given that we fully inline virt_to_page and friends now that is rather good. total used free shared buffers cached Mem: 8264720 57240 8207480 0 352 11516 -/+ buffers/cache: 45372 8219348 Swap: 9775512 0 9775512 The total available memory is increased by 8k. This patch makes sparsemem the default and removes discontig and flatmem support from x86. [ akpm@linux-foundation.org: allnoconfig build fix ] Acked-by: Andi Kleen <ak@suse.de> Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>		2008-01-30 13:30:47 +01:00
..
mach-bigsmp	x86: cleanup mpspec variants	2008-01-30 13:30:35 +01:00
mach-default	x86: cleanup mpspec variants	2008-01-30 13:30:35 +01:00
mach-es7000	x86: cleanup mpspec variants	2008-01-30 13:30:35 +01:00
mach-generic
mach-numaq	x86: cleanup mpspec variants	2008-01-30 13:30:35 +01:00
mach-summit	x86: cleanup mpspec variants	2008-01-30 13:30:35 +01:00
mach-visws	x86: visws extern inline to static inline	2007-10-17 20:16:39 +02:00
mach-voyager	x86: voyager use correct header file name	2007-11-17 16:27:00 +01:00
xen
a.out.h	x86: unify a.out{,_32,_64}.h	2007-10-23 22:37:23 +02:00
acpi.h	x86: merge acpi_32/64.h	2008-01-30 13:30:36 +01:00
agp.h	x86: unify include/asm/agp_32/64.h	2007-10-17 20:17:12 +02:00
alternative-asm.h	x86: rename .i assembler includes to .h	2007-10-17 20:16:29 +02:00
alternative.h	x86: actually merge <asm/alternative.h>	2008-01-30 13:30:30 +01:00
apic.h	x86: extended interrupt LVT support for AMD Barcelona	2008-01-30 13:30:40 +01:00
apicdef.h	x86: extended interrupt LVT support for AMD Barcelona	2008-01-30 13:30:40 +01:00
arch_hooks.h	x86: move debug related declarations to kdebug.h	2008-01-30 13:30:17 +01:00
asm.h	x86: merge resume-trace.h variants	2008-01-30 13:30:38 +01:00
atomic.h
atomic_32.h
atomic_64.h	x86: make atomic64_t work like atomic_t	2007-10-17 20:16:21 +02:00
auxvec.h	x86: unify include/asm/auxvec_32/64.h	2007-10-17 20:17:13 +02:00
bitops.h
bitops_32.h	x86: bitops_32.h style cleanups	2008-01-30 13:30:32 +01:00
bitops_64.h	x86 bitops: fix code style issues	2007-10-25 16:16:26 -07:00
boot.h
bootparam.h	Make asm-x86/bootparam.h includable from userspace.	2007-10-23 15:49:47 +10:00
bug.h	x86: nuke a ton of unused exports	2008-01-30 13:30:28 +01:00
bugs.h	x86: unify some more trivial include/asm-x86/ 32/64 variants	2007-10-17 20:17:10 +02:00
byteorder.h	x86: fix asm-x86/byteorder.h for userspace export	2008-01-01 19:12:15 +01:00
cache.h	x86: unify include/asm/cache_32/64.h	2007-10-17 20:17:15 +02:00
cacheflush.h	Intel IOMMU: clflush_cache_range now takes size param	2007-10-22 08:13:18 -07:00
calgary.h
calling.h
checksum.h
checksum_32.h
checksum_64.h	x86: remove more bogus filenames in comments.	2008-01-30 13:30:28 +01:00
cmpxchg.h
cmpxchg_32.h
cmpxchg_64.h
compat.h	x86: Use linux/elfcore-compat.h	2007-10-19 20:35:02 +02:00
cpu.h	i386: no need to make enable_cpu_hotplug a variable	2007-10-17 20:16:16 +02:00
cpufeature.h	x86: cleanup tlbflush.h variants	2008-01-30 13:30:35 +01:00
cputime.h	x86: trivial header merges	2007-10-17 20:17:08 +02:00
current.h
current_32.h
current_64.h
debugreg.h	x86: unify include/asm/debugreg_32/64.h	2007-10-17 20:35:37 +02:00
delay.h	x86: unify include/asm/delay_32/64.h	2007-10-17 20:17:17 +02:00
desc.h
desc_32.h
desc_64.h	x86: get_desc_base	2008-01-30 13:30:44 +01:00
desc_defs.h
device.h	intel-iommu: fix for IOMMU early crash	2007-10-22 08:13:19 -07:00
div64.h	x86: unify div64{,_32,_64}.h	2007-10-23 22:37:23 +02:00
dma-mapping.h
dma-mapping_32.h	Change table chaining layout	2007-10-22 21:20:01 +02:00
dma-mapping_64.h	x86-64: enable sg chaining	2007-10-16 11:26:02 +02:00
dma.h	x86: merge include/asm-x86/dma.h	2008-01-30 13:30:20 +01:00
dmi.h	x86: unify include/asm/dmi_32/64.h	2007-10-17 20:17:18 +02:00
dwarf2.h
dwarf2_32.h
dwarf2_64.h
e820.h	Make asm-x86/bootparam.h includable from userspace.	2007-10-23 15:49:47 +10:00
e820_32.h	x86: remove extern declarations for code, data, bss resources	2008-01-30 13:30:32 +01:00
e820_64.h	x86: remove extern declarations for code, data, bss resources	2008-01-30 13:30:32 +01:00
edac.h	x86: unify include/asm/cache_32/64.h	2007-10-17 20:17:19 +02:00
elf.h	x86 vDSO: consolidate vdso32	2008-01-30 13:30:43 +01:00
emergency-restart.h
errno.h	x86: trivial header merges	2007-10-17 20:17:08 +02:00
fb.h	x86: unify include/asm/cache_32/64.h	2007-10-17 20:17:21 +02:00
fcntl.h
fixmap.h
fixmap_32.h
fixmap_64.h
floppy.h	x86: unify include/asm/floppy_32/64.h	2007-10-17 20:24:56 +02:00
fpu32.h
frame.h	x86: rename .i assembler includes to .h	2007-10-17 20:16:29 +02:00
futex.h	x86: merge futex_32/64.h	2008-01-30 13:30:20 +01:00
gart.h	x86 gart: rename symbols only used for the GART implementation	2007-10-30 00:22:22 +01:00
genapic.h
genapic_32.h
genapic_64.h
geode.h	GEODE: use symbolic constant in cs5536 reboot fixup	2007-10-19 20:35:02 +02:00
hardirq.h
hardirq_32.h	x86: expand /proc/interrupts to include missing vectors, v2	2007-10-17 20:16:53 +02:00
hardirq_64.h
highmem.h
hpet.h	x86: offer is_hpet_enabled() on !CONFIG_HPET_TIMER too	2008-01-30 13:30:02 +01:00
hw_irq.h
hw_irq_32.h
hw_irq_64.h	x86: clear IO_APIC before enabing apic error vector.	2008-01-30 13:30:39 +01:00
hypertransport.h
i387.h
i387_32.h	x86: remove more bogus filenames in comments.	2008-01-30 13:30:28 +01:00
i387_64.h	x86: remove more bogus filenames in comments.	2008-01-30 13:30:28 +01:00
i8253.h	i386: Remove the useless #ifdef in i8253.h	2007-10-12 23:04:23 +02:00
i8259.h	x86: move 8259 defines to i8259.h	2008-01-30 13:30:29 +01:00
ia32.h	x86: TLS cleanup	2008-01-30 13:30:46 +01:00
ia32_unistd.h	x86: remove more bogus filenames in comments.	2008-01-30 13:30:28 +01:00
ide.h	x86: remove more bogus filenames in comments.	2008-01-30 13:30:28 +01:00
idle.h	x86: remove dead code and exports	2008-01-30 13:30:28 +01:00
intel_arch_perfmon.h	x86: unify some more trivial include/asm-x86/ 32/64 variants	2007-10-17 20:17:10 +02:00
io.h
io_32.h	x86: various changes and cleanups to in_p/out_p delay details	2008-01-30 13:30:05 +01:00
io_64.h	x86: various changes and cleanups to in_p/out_p delay details	2008-01-30 13:30:05 +01:00
io_apic.h	x86: merge include/asm-x86/sparsemem.h	2008-01-30 13:30:37 +01:00
ioctl.h
ioctls.h	x86: unify include/asm/ioctls_32/64.h	2007-10-17 20:26:11 +02:00
iommu.h	x86 gart: rename iommu.h to gart.h	2007-10-30 00:22:22 +01:00
ipcbuf.h	x86: unify some more trivial include/asm-x86/ 32/64 variants	2007-10-17 20:17:10 +02:00
ipi.h	x86: convert cpu_to_apicid to be a per cpu variable	2007-10-19 20:35:03 +02:00
irq.h
irq_32.h	i386: introduce "used_vectors" bitmap which can be used to reserve vectors.	2007-10-19 20:35:03 +02:00
irq_64.h
irq_regs.h
irq_regs_32.h
irq_regs_64.h
irqflags.h	x86: irqflags consolidation	2008-01-30 13:30:33 +01:00
ist.h	Make asm-x86/bootparam.h includable from userspace.	2007-10-23 15:49:47 +10:00
k8.h	x86: move k8 related declarations	2008-01-30 13:30:16 +01:00
Kbuild	x86 vDSO: ia32 vsyscall removal	2008-01-30 13:30:44 +01:00
kdebug.h	x86: move debug related declarations to kdebug.h	2008-01-30 13:30:17 +01:00
kexec.h
kexec_32.h
kexec_64.h
kmap_types.h	x86: unify include/asm/agp_32/64.h	2007-10-17 20:26:13 +02:00
kprobes.h
kprobes_32.h	x86: jprobe bugfix	2007-12-18 18:05:58 +01:00
kprobes_64.h	x86: jprobe bugfix	2007-12-18 18:05:58 +01:00
ldt.h	x86: unify include/asm/ldt_32/64.h	2007-10-17 20:16:47 +02:00
lguest.h	Reorder guest saved regs to match hyperall order	2007-10-23 15:49:51 +10:00
lguest_hcall.h	lguest: make async_hcall() static	2007-11-05 21:53:29 +11:00
linkage.h
linkage_32.h
linkage_64.h
local.h
local_32.h
local_64.h
mach_apic.h
math_emu.h
mc146818rtc.h	x86: isolate the rtc code for sharing	2008-01-30 13:30:26 +01:00
mca.h
mca_dma.h
mce.h	x86: move mce related declarations	2008-01-30 13:30:17 +01:00
mman.h	x86: unify include/asm/mman_32/64.h	2007-10-17 20:26:15 +02:00
mmsegment.h
mmu.h	x86: merge mmu{,_32,_64}.h	2007-10-23 22:37:22 +02:00
mmu_context.h
mmu_context_32.h
mmu_context_64.h	x86: nuke a ton of unused exports	2008-01-30 13:30:28 +01:00
mmx.h
mmzone.h
mmzone_32.h	x86: put all kern_addr_valid() incarnations to pgtable.h	2008-01-30 13:30:37 +01:00
mmzone_64.h	x86: 64-bit, make sparsemem vmemmap the only memory model	2008-01-30 13:30:47 +01:00
module.h
module_32.h
module_64.h
mpspec.h	x86: cleanup smp.h variants	2008-01-30 13:30:36 +01:00
mpspec_def.h	x86: cleanup mpspec variants	2008-01-30 13:30:35 +01:00
msgbuf.h	x86: merge msgbuf_32/64.h	2007-10-23 22:37:24 +02:00
msidef.h
msr-index.h	i386: i386 add AMD64 Barcelona PMU MSR definitions to msr.h	2007-10-19 20:35:03 +02:00
msr.h	x86: asm-x86/msr.h: pull in linux/types.h	2008-01-15 16:44:38 +01:00
mtrr.h	x86: mtrr use type bool [RESEND AGAIN]	2008-01-30 13:30:31 +01:00
mutex.h
mutex_32.h
mutex_64.h
namei.h	x86: unify some more trivial include/asm-x86/ 32/64 variants	2007-10-17 20:17:10 +02:00
nmi.h
nmi_32.h	x86: remove more bogus filenames in comments.	2008-01-30 13:30:28 +01:00
nmi_64.h	x86: nmi_64.c: make code static	2008-01-30 13:30:31 +01:00
numa.h
numa_32.h
numa_64.h	x86: fixup numa 64 namespace	2008-01-30 13:30:38 +01:00
numaq.h
page.h
page_32.h
page_64.h	x86: 64-bit, make sparsemem vmemmap the only memory model	2008-01-30 13:30:47 +01:00
param.h	x86: unify some more trivial include/asm-x86/ 32/64 variants	2007-10-17 20:17:10 +02:00
paravirt.h	x86: irqflags consolidation	2008-01-30 13:30:33 +01:00
parport.h	x86: unify some more trivial include/asm-x86/ 32/64 variants	2007-10-17 20:17:10 +02:00
pci-direct.h
pci.h	x86: consolidate toloplogy_32/64.h	2008-01-30 13:30:38 +01:00
pci_32.h	PCI: merge almost all of pci_32.h and pci_64.h together	2007-10-12 15:03:20 -07:00
pci_64.h	x86: pci-dma_64.c: cleanups	2008-01-30 13:30:31 +01:00
pda.h	x86: move pda related declaration	2008-01-30 13:30:18 +01:00
percpu.h
percpu_32.h
percpu_64.h
pgalloc.h
pgalloc_32.h
pgalloc_64.h
pgtable-2level-defs.h
pgtable-2level.h
pgtable-3level-defs.h	paravirt: refactor struct paravirt_ops into smaller pv_*_ops	2007-10-16 11:51:29 -07:00
pgtable-3level.h
pgtable.h
pgtable_32.h	x86: put all kern_addr_valid() incarnations to pgtable.h	2008-01-30 13:30:37 +01:00
pgtable_64.h	remove asm/bitops.h includes	2007-10-19 11:53:41 -07:00
poll.h
posix_types.h
posix_types_32.h
posix_types_64.h
prctl.h
processor-cyrix.h
processor-flags.h	KVM: Use standard CR8 flags, and fix TPR definition	2007-10-13 10:18:19 +02:00
processor.h
processor_32.h	x86: desc_empty	2008-01-30 13:30:45 +01:00
processor_64.h	x86: desc_empty	2008-01-30 13:30:45 +01:00
proto.h	x86: remove obsolte declarations from proto.h	2008-01-30 13:30:19 +01:00
ptrace-abi.h	x86: unify include/asm/ptrace-abi_32/64.h	2007-10-17 20:16:45 +02:00
ptrace.h	x86: TLS cleanup	2008-01-30 13:30:46 +01:00
reboot.h
reboot_fixups.h
required-features.h	x86: merge required-features.h	2007-10-23 22:37:24 +02:00
resource.h	x86: trivial header merges	2007-10-17 20:17:08 +02:00
resume-trace.h	x86: merge resume-trace.h variants	2008-01-30 13:30:38 +01:00
rio.h	x86: remove more bogus filenames in comments.	2008-01-30 13:30:28 +01:00
rtc.h	x86: trivial header merges	2007-10-17 20:17:08 +02:00
rwlock.h	x86: use immediates instead of RW_LOCK_BIAS_STR	2008-01-30 13:30:34 +01:00
rwsem.h	x86: remove more bogus filenames in comments.	2008-01-30 13:30:28 +01:00
scatterlist.h	x86: merge include/asm-x86/scatterlist.h	2008-01-30 13:30:21 +01:00
seccomp.h
seccomp_32.h
seccomp_64.h
sections.h	x86: trivial header merges	2007-10-17 20:17:08 +02:00
segment.h
segment_32.h
segment_64.h
semaphore.h
semaphore_32.h	kill DECLARE_MUTEX_LOCKED	2007-10-17 08:42:47 -07:00
semaphore_64.h	kill DECLARE_MUTEX_LOCKED	2007-10-17 08:42:47 -07:00
sembuf.h	x86: unify some more trivial include/asm-x86/ 32/64 variants	2007-10-17 20:17:10 +02:00
serial.h	x86: merge some trivially mergeable headers	2007-10-17 20:17:09 +02:00
setup.h	x86: clean up setup.h and the boot code	2007-10-23 22:37:25 +02:00
shmbuf.h	x86: merge shmbuf_32/64.h	2007-10-23 22:37:24 +02:00
shmparam.h	x86: unify some more trivial include/asm-x86/ 32/64 variants	2007-10-17 20:17:10 +02:00
sigcontext.h	x86: merge sigcontext_32/64.h	2007-10-23 22:37:24 +02:00
sigcontext32.h
siginfo.h	x86: unify include/asm/siginfo_32/64.h	2007-10-17 20:26:17 +02:00
signal.h	x86: merge signal_32/64.h	2007-10-23 22:37:24 +02:00
smp.h
smp_32.h	x86: cleanup smp.h variants	2008-01-30 13:30:36 +01:00
smp_64.h	x86: cleanup smp.h variants	2008-01-30 13:30:36 +01:00
socket.h
sockios.h	x86: merge some trivially mergeable headers	2007-10-17 20:17:09 +02:00
sparsemem.h	x86: merge include/asm-x86/sparsemem.h	2008-01-30 13:30:37 +01:00
spinlock.h	x86: merge spinlock.h variants	2008-01-30 13:30:34 +01:00
spinlock_types.h
srat.h
stacktrace.h	x86: constify stacktrace_ops	2007-10-17 20:16:11 +02:00
stat.h	x86: merge stat_32/64.h	2007-10-23 22:37:24 +02:00
statfs.h	x86: merge statfs_32/64.h	2007-10-23 22:37:24 +02:00
string.h
string_32.h	i386: Remove strrchr assembler implementation	2007-10-17 20:16:23 +02:00
string_64.h
suspend.h
suspend_32.h
suspend_64.h	x86: hibernation: document __save_processor_state() on x86	2008-01-30 13:30:04 +01:00
swiotlb.h
sync_bitops.h
system.h
system_32.h	x86: move debug related declarations to kdebug.h	2008-01-30 13:30:17 +01:00
system_64.h	x86: also define AT_VECTOR_SIZE_ARCH	2007-12-18 18:05:58 +01:00
tce.h
termbits.h	x86: unify some more trivial include/asm-x86/ 32/64 variants	2007-10-17 20:17:10 +02:00
termios.h	x86: unify some more trivial include/asm-x86/ 32/64 variants	2007-10-17 20:17:10 +02:00
therm_throt.h
thread_info.h
thread_info_32.h	remove __attribute_used__	2008-01-28 23:21:18 +01:00
thread_info_64.h	x86 vDSO: ia32 sysenter_return	2008-01-30 13:30:43 +01:00
time.h	x86: isolate the rtc code for sharing	2008-01-30 13:30:26 +01:00
timer.h	x86: scale cyc_2_nsec according to CPU frequency	2008-01-30 13:30:06 +01:00
timex.h	x86: unify timex.h variants	2007-10-12 23:04:23 +02:00
tlb.h	x86: unify include/asm/tlb_32/64.h	2007-10-17 20:26:18 +02:00
tlbflush.h	x86: merge tlbflush.h variants	2008-01-30 13:30:35 +01:00
topology.h	x86: merge topology.h variants	2008-01-30 13:30:38 +01:00
tsc.h	x86: move tsc related declarations	2008-01-30 13:30:18 +01:00
types.h	x86: unify include/asm/types_32/64.h	2007-10-17 20:32:07 +02:00
uaccess.h
uaccess_32.h
uaccess_64.h
ucontext.h	x86: unify some more trivial include/asm-x86/ 32/64 variants	2007-10-17 20:17:10 +02:00
unaligned.h	x86: unify some more trivial include/asm-x86/ 32/64 variants	2007-10-17 20:17:10 +02:00
unistd.h
unistd_32.h
unistd_64.h	x86: cleanup 64bit unistd.h	2007-10-17 20:16:36 +02:00
unwind.h	x86: unify include/asm/unwind_32/64.h	2007-10-17 20:32:38 +02:00
user.h
user32.h
user_32.h
user_64.h
vdso.h	x86 vDSO: i386 vdso32	2008-01-30 13:30:42 +01:00
vga.h
vgtod.h
vic.h
vm86.h
vmi.h
vmi_time.h
voyager.h
vsyscall.h	i386/x8664: cleanup the shared hpet code	2007-10-12 23:04:23 +02:00
xor.h
xor_32.h	x86: remove more bogus filenames in comments.	2008-01-30 13:30:28 +01:00
xor_64.h	x86: remove more bogus filenames in comments.	2008-01-30 13:30:28 +01:00