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Peter Lieven 3edcd7e6eb migration: search for zero instead of dup pages

virtually all dup pages are zero pages. remove
the special is_dup_page() function and use the
optimized buffer_find_nonzero_offset() function
instead.

here buffer_find_nonzero_offset() is used directly
to avoid the unnecssary additional checks in
buffer_is_zero().

raw performace gain checking 1 GByte zeroed memory
over is_dup_page() is approx. 10-12% with SSE2
and 8-10% with unsigned long arithmedtic.

Signed-off-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Orit Wasserman <owasserm@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>

2013-03-26 13:32:32 +01:00

audio

audio: Replace non-portable asprintf in debug code by g_strdup_printf

2013-01-16 12:03:26 -06:00

backends

chardev: add braille support to qapi

2013-03-13 10:27:46 +01:00

block

block: Add options QDict to bdrv_file_open() prototypes (fix MinGW build)

2013-03-25 09:53:04 +01:00

bsd-user

qemu-log: default to stderr for logging output

2013-02-26 13:31:47 -06:00

default-configs

VMXNET3 device implementation

2013-03-25 11:13:10 +01:00

disas

Add moxie disassembler

2013-03-23 14:25:41 +00:00

docs

Fix typos and misspellings

2013-03-22 13:25:07 +01:00

fpu

softfloat: Handle float_muladd_negate_c when product is zero

2013-01-26 13:22:09 +00:00

fsdev

virtfs-proxy-helper: Fix unchecked strdup() by conv. to g_strdup()

2013-01-30 11:14:46 +01:00

gdb-xml

…

savevm: Add VMSTATE_UINTTL_EQUAL helper

2013-03-26 13:30:49 +01:00

include

cutils: add a function to find non-zero content in a buffer

2013-03-26 13:32:28 +01:00

ldscripts

build: create ldscripts/

2012-12-19 08:29:06 +01:00

libcacard

libcacard: Fix unchecked strdup() by converting to g_strdup()

2013-01-30 11:14:46 +01:00

linux-headers

linux-headers: resync from mainline to add ARM KVM headers

2013-03-05 00:34:40 +00:00

linux-user

linux-user/syscall.c: Don't warn about unimplemented get_robust_list

2013-03-11 14:35:08 +02:00

net

net: increase buffer size to accommodate Jumbo frame pkts

2013-03-25 11:14:07 +01:00

pc-bios

ipxe: update binaries

2013-03-25 09:13:18 +01:00

pixman @ 97336fad32

qapi: move include files to include/qobject/

2012-12-19 08:31:31 +01:00

ui/gtk: Use menu item from stock for full screen

2013-02-22 14:49:00 -06:00

qapi

qapi: Fix unchecked strdup() by converting to g_strdup()

2013-01-30 11:14:46 +01:00

qga

Fix typos and misspellings

2013-03-22 13:25:07 +01:00

QMP

…

qobject

Add qdict_clone_shallow()

2013-03-15 16:07:49 +01:00

qom

exec: Pass CPUState to cpu_reset_interrupt()

2013-03-12 10:35:55 +01:00

roms

ipxe: disable two second timeout

2013-03-25 09:07:40 +01:00

scripts

make_device_config.sh: Emit dependency file to directory where included

2013-03-09 12:00:03 +00:00

slirp

MinGW: Replace setsockopt by qemu_setsocketopt

2013-03-22 13:14:48 +01:00

stubs

stubs: Add a vmstate_dummy struct for CONFIG_USER_ONLY

2013-03-12 10:35:54 +01:00

sysconfigs/target

…

target-alpha

cpu: Replace do_interrupt() by CPUClass::do_interrupt method

2013-03-12 10:35:55 +01:00

target-arm

target-arm: Override do_interrupt for ARMv7-M profile

2013-03-12 10:35:55 +01:00

target-cris

cpu: Replace do_interrupt() by CPUClass::do_interrupt method

2013-03-12 10:35:55 +01:00

target-i386

target-i386: Don't modify env->eflags around cpu_dump_state

2013-03-23 14:30:12 +00:00

target-lm32

target-lm32: use HELPER() macro

2013-03-18 19:40:34 +01:00

target-m68k

cpu: Replace do_interrupt() by CPUClass::do_interrupt method

2013-03-12 10:35:55 +01:00

target-microblaze

microblaze: Ignore non-cpu accesses to unmapped areas

2013-03-19 17:34:47 +01:00

target-mips

target-mips: fix rndrashift_short_acc and code for EXTR_ instructions

2013-03-17 01:06:34 +01:00

target-moxie

Add moxie target code

2013-03-23 14:25:41 +00:00

target-openrisc

cpu: Replace do_interrupt() by CPUClass::do_interrupt method

2013-03-12 10:35:55 +01:00

target-ppc

target-ppc: Use NARROW_MODE macro for tlbie

2013-03-22 15:28:54 +01:00

target-s390x

Fix typos and misspellings

2013-03-22 13:25:07 +01:00

target-sh4

cpu: Replace do_interrupt() by CPUClass::do_interrupt method

2013-03-12 10:35:55 +01:00

target-sparc

cpu: Replace do_interrupt() by CPUClass::do_interrupt method

2013-03-12 10:35:55 +01:00

target-unicore32

cpu: Replace do_interrupt() by CPUClass::do_interrupt method

2013-03-12 10:35:55 +01:00

target-xtensa

cpu: Replace do_interrupt() by CPUClass::do_interrupt method

2013-03-12 10:35:55 +01:00

tcg

tcg-optimize: Fold sub r,0,x to neg r,x

2013-03-23 14:31:03 +00:00

tests

Merge branch 'for-upstream' of git://github.com/mwalle/qemu

2013-03-23 14:23:26 +00:00

tpm

Add support for cancelling of a TPM command

2013-03-12 13:40:55 -05:00

trace

trace: deal with deprecated glib thread functions

2013-02-12 16:26:44 -06:00

gtk: Release modifier when graphic console loses keyboard focus

2013-03-25 13:10:40 -05:00

util

bitops: unroll while loop in find_next_bit()

2013-03-26 13:32:32 +01:00

.exrc

…

.gitignore

gitignore: ignore more files

2013-03-22 16:09:46 +01:00

.gitmodules

…

.mailmap

…

aio-posix.c

aio: support G_IO_HUP and G_IO_ERR

2013-02-21 16:17:31 -06:00

aio-win32.c

aio: Fix return value of aio_poll()

2013-01-17 10:51:42 +01:00

arch_init.c

migration: search for zero instead of dup pages

2013-03-26 13:32:32 +01:00

async.c

aio: add a ThreadPool instance to AioContext

2013-03-15 16:07:50 +01:00

balloon.c

softmmu: move include files to include/sysemu/

2012-12-19 08:32:45 +01:00

block-migration.c

migration: run setup callbacks out of big lock

2013-03-11 13:32:01 +01:00

block.c

block: Allow omitting the file name when using driver-specific options

2013-03-22 17:51:32 +01:00

blockdev-nbd.c

softmmu: move include files to include/sysemu/

2012-12-19 08:32:45 +01:00

blockdev.c

block: Allow omitting the file name when using driver-specific options

2013-03-22 17:51:32 +01:00

blockjob.c

misc: move include files to include/qemu/

2012-12-19 08:32:39 +01:00

bt-host.c

MinGW: Replace setsockopt by qemu_setsocketopt

2013-03-22 13:14:48 +01:00

bt-vhci.c

softmmu: move remaining include files to include/ subdirectories

2012-12-19 08:32:46 +01:00

Changelog

…

cmd.c

misc: move include files to include/qemu/

2012-12-19 08:32:39 +01:00

cmd.h

…

CODING_STYLE

…

configure

Add top level changes for moxie

2013-03-23 14:25:42 +00:00

COPYING

…

COPYING.LIB

…

coroutine-gthread.c

block: move include files to include/block/

2012-12-19 08:31:31 +01:00

coroutine-sigaltstack.c

Merge remote-tracking branch 'kwolf/for-anthony' into staging

2013-02-26 07:44:39 -06:00

coroutine-ucontext.c

Merge remote-tracking branch 'kwolf/for-anthony' into staging

2013-02-26 07:44:39 -06:00

coroutine-win32.c

block: move include files to include/block/

2012-12-19 08:31:31 +01:00

cpu-exec.c

target-i386: Don't modify env->eflags around cpu_dump_state

2013-03-23 14:30:12 +00:00

cpus.c

cpu: Pass CPUState to cpu_interrupt()

2013-03-12 10:35:55 +01:00

cputlb.c

cpu: Move current_tb field to CPUState

2013-02-16 14:51:00 +01:00

device_tree.c

softmmu: move include files to include/sysemu/

2012-12-19 08:32:45 +01:00

device-hotplug.c

hw: move device-hotplug.o to toplevel, compile it once

2013-03-01 13:57:13 +01:00

disas.c

Add moxie disassembler

2013-03-23 14:25:41 +00:00

dma-helpers.c

softmmu: move include files to include/sysemu/

2012-12-19 08:32:45 +01:00

dump-stub.c

softmmu: move include files to include/sysemu/

2012-12-19 08:32:45 +01:00

dump.c

cpu: Move host_tid field to CPUState

2013-02-16 14:50:59 +01:00

exec.c

Merge remote-tracking branch 'afaerber/qom-cpu' into staging

2013-03-14 14:50:58 -05:00

gdbstub.c

Merge branch 'ppc-for-upstream' of git://github.com/agraf/qemu

2013-03-22 21:43:57 +01:00

HACKING

…

hmp-commands.hx

Revert "hmp: Disable chardev-add and chardev-remove"

2013-03-13 10:27:47 +01:00

hmp.c

Support for TPM command line options

2013-03-12 13:40:11 -05:00

hmp.h

Support for TPM command line options

2013-03-12 13:40:11 -05:00

iohandler.c

iohandler: switch to GPollFD

2013-02-21 16:17:31 -06:00

ioport.c

exec: move include files to include/exec/

2012-12-19 08:31:31 +01:00

kvm-all.c

cpu: Pass CPUState to cpu_interrupt()

2013-03-12 10:35:55 +01:00

kvm-stub.c

kvm: Pass CPUState to kvm_on_sigbus_vcpu()

2013-01-28 16:57:56 +01:00

LICENSE

…

main-loop.c

main-loop: add qemu_get_aio_context()

2013-03-15 16:07:50 +01:00

MAINTAINERS

Add top level changes for moxie

2013-03-23 14:25:42 +00:00

Makefile

Fix TAGS creation

2013-03-15 11:36:49 -05:00

Makefile.objs

Support for TPM command line options

2013-03-12 13:40:11 -05:00

Makefile.target

build: always link device_tree.o into emulators if libfdt available

2013-03-01 15:01:19 +01:00

memory_mapping-stub.c

softmmu: move include files to include/sysemu/

2012-12-19 08:32:45 +01:00

memory_mapping.c

exec: change RAM list to a TAILQ

2012-12-20 23:08:47 +01:00

memory.c

memory: fix a bug of detection of memory region collision

2013-03-22 13:21:28 +01:00

migration-exec.c

migration: eliminate s->migration_file

2013-03-11 13:32:03 +01:00

migration-fd.c

migration: eliminate s->migration_file

2013-03-11 13:32:03 +01:00

migration-tcp.c

migration: eliminate s->migration_file

2013-03-11 13:32:03 +01:00

migration-unix.c

migration: eliminate s->migration_file

2013-03-11 13:32:03 +01:00

migration.c

migration: inline migrate_fd_close

2013-03-11 13:32:03 +01:00

monitor.c

Merge branch 'ppc-for-upstream' of git://github.com/agraf/qemu

2013-03-22 21:43:57 +01:00

nbd.c

nbd: Remove unused functions

2013-03-22 17:51:32 +01:00

os-posix.c

softmmu: move include files to include/sysemu/

2012-12-19 08:32:45 +01:00

os-win32.c

softmmu: move include files to include/sysemu/

2012-12-19 08:32:45 +01:00

page_cache.c

page_cache: dup memory on insert

2013-03-11 13:32:03 +01:00

qapi-schema-test.json

…

qapi-schema.json

Add top level changes for moxie

2013-03-23 14:25:42 +00:00

qdev-monitor.c

hw: move qdev-monitor.o to toplevel directory

2013-03-01 13:54:10 +01:00

qdict-test-data.txt

…

qemu-bridge-helper.c

misc: move include files to include/qemu/

2012-12-19 08:32:39 +01:00

qemu-char.c

char: Fix return type of qemu_chr_fe_add_watch()

2013-03-19 07:56:07 -05:00

qemu-coroutine-io.c

misc: move include files to include/qemu/

2012-12-19 08:32:39 +01:00

qemu-coroutine-lock.c

coroutine: use AioContext for CoQueue BH

2013-03-15 16:07:51 +01:00

qemu-coroutine-sleep.c

misc: move include files to include/qemu/

2012-12-19 08:32:39 +01:00

qemu-coroutine.c

coroutine: move pooling to common code

2013-02-22 21:21:10 +01:00

qemu-doc.texi

sheepdog: add support for connecting to unix domain socket

2013-03-04 09:54:17 +01:00

qemu-img-cmds.hx

qemu-img: Add compare subcommand

2013-02-22 21:21:10 +01:00

qemu-img.c

block: Add options QDict to bdrv_open() prototype

2013-03-15 16:07:49 +01:00

qemu-img.texi

qemu-img: Add compare subcommand

2013-02-22 21:21:10 +01:00

qemu-io.c

block: Add options QDict to bdrv_file_open() prototypes

2013-03-22 17:51:31 +01:00

qemu-log.c

qemu-log: default to stderr for logging output

2013-02-26 13:31:47 -06:00

qemu-nbd.c

block: Add options QDict to bdrv_open() prototype

2013-03-15 16:07:49 +01:00

qemu-nbd.texi

qemu-nbd: add --discard option

2013-02-22 21:29:43 +01:00

qemu-options-wrapper.h

…

qemu-options.h

…

qemu-options.hx

Fix typos and misspellings

2013-03-22 13:25:07 +01:00

qemu-seccomp.c

softmmu: move include files to include/sysemu/

2012-12-19 08:32:45 +01:00

qemu-tech.texi

…

qemu-timer.c

softmmu: move include files to include/sysemu/

2012-12-19 08:32:45 +01:00

qemu.sasl

…

qmp-commands.hx

migration: Improve QMP documentation

2013-03-26 13:30:38 +01:00

qmp.c

softmmu: move remaining include files to include/ subdirectories

2012-12-19 08:32:46 +01:00

qtest.c

qtest: Add MMIO support

2013-02-18 08:39:10 -06:00

readline.c

readline: Fix unchecked strdup() by converting to g_strdup()

2013-01-30 11:14:46 +01:00

README

…

rules.mak

rules/mak: make clean should blow away timestamp files

2013-01-30 01:31:08 +02:00

savevm.c

savevm: Add VMSTATE_FLOAT64 helpers

2013-03-26 13:30:49 +01:00

spice-qemu-char.c

spice-qemu-char: Remove dead debugging code

2013-03-14 09:46:18 +01:00

tcg-runtime.c

tcg: Implement multiword multiply helpers

2013-02-23 17:25:28 +00:00

tci.c

exec: move include files to include/exec/

2012-12-19 08:31:31 +01:00

thread-pool.c

threadpool: drop global thread pool

2013-03-15 16:07:51 +01:00

thunk.c

exec: move include files to include/exec/

2012-12-19 08:31:31 +01:00

trace-events

console: rework DisplaySurface handling [vga emu side]

2013-03-18 10:21:58 +01:00

translate-all.c

tcg: Fix occasional TCG broken problem when ldst optimization enabled

2013-03-22 21:38:21 +01:00

translate-all.h

cputlb: Pass CPUState to cpu_unlink_tb()

2013-02-16 14:51:00 +01:00

user-exec.c

Replace all setjmp()/longjmp() with sigsetjmp()/siglongjmp()

2013-02-23 16:11:19 +00:00

VERSION

Open up 1.5 development tree

2013-02-15 17:40:56 -06:00

version.rc

…

vl.c

add a boot option to do strict boot

2013-03-19 08:00:10 -05:00

xbzrle.c

Move XBZRLE encoding code to a separate file to allow testing

2013-02-01 08:32:20 +01:00

xen-all.c

cpu: Move halted and interrupt_request fields to CPUState

2013-03-12 10:35:55 +01:00

xen-mapcache.c

softmmu: move include files to include/sysemu/

2012-12-19 08:32:45 +01:00

xen-stub.c

exec: move include files to include/exec/

2012-12-19 08:31:31 +01:00

README

Read the documentation in qemu-doc.html or on http://wiki.qemu.org

- QEMU team

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