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QEMU With E2K User Support
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40b4f53967
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Kevin Wolf 40b4f53967 Add bdrv_aio_multiwrite 
One performance problem of qcow2 during the initial image growth are
sequential writes that are not cluster aligned. In this case, when a first
requests requires to allocate a new cluster but writes only to the first
couple of sectors in that cluster, the rest of the cluster is zeroed - just
to be overwritten by the following second request that fills up the cluster.

Let's try to merge sequential write requests to the same cluster, so we can
avoid to write the zero padding to the disk in the first place.

As a nice side effect, also other formats take advantage of dealing with less
and larger requests.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-11 10:18:06 -05:00
audio Remove bit-rotten threshold handling 2009-09-10 21:09:09 +04:00
block qcow2: Order concurrent AIO requests on the same unallocated cluster 2009-09-09 17:31:26 -05:00
bsd-user bsd-user: Add generic env variable handling 2009-08-15 10:35:42 +00:00
darwin-user Replace local ADDRX/PADDRX macros with TARGET_FMT_lx/plx 2009-08-16 11:13:18 +00:00
fpu rename NEEDS_LIBSUNMATH to CONFIG_NEEDS_LIBSUNMATH 2009-07-27 14:10:55 -05:00
gdb-xml gdb-xml: fix hacks in powerpc register numbering 2009-07-12 23:42:05 +02:00
hw Revert "don't call cpu_sychronize_state from reset handlers" 2009-09-11 10:18:06 -05:00
linux-user F_DUPFD_CLOEXEC is not universally available 2009-09-10 20:27:36 +04:00
pc-bios Update OpenBIOS images to r577 2009-09-11 09:13:04 +02:00
roms Bring pcbios, seabios, and vgabios into the tree as git submodules. Right now, 2009-09-04 10:13:29 -05:00
slirp Fix Sparse warnings: add "static" 2009-09-05 10:14:07 +00:00
target-alpha cleanup cpu-exec.c, part 0/N: consolidate handle_cpu_signal 2009-08-24 08:21:42 -05:00
target-arm cleanup cpu-exec.c, part 0/N: consolidate handle_cpu_signal 2009-08-24 08:21:42 -05:00
target-cris cleanup cpu-exec.c, part 0/N: consolidate handle_cpu_signal 2009-08-24 08:21:42 -05:00
target-i386 Fix Sparse warnings: add "static" 2009-09-05 10:14:07 +00:00
target-m68k cleanup cpu-exec.c, part 0/N: consolidate handle_cpu_signal 2009-08-24 08:21:42 -05:00
target-microblaze microblaze: Trap if QEMU finds an unknown insns. 2009-09-11 10:38:31 +02:00
target-mips target-mips: fix conditional moves off fp condition codes 2009-08-25 18:05:27 +02:00
target-ppc kvm: Simplify cpu_synchronize_state() 2009-08-27 20:35:30 -05:00
target-sh4 cleanup cpu-exec.c, part 0/N: consolidate handle_cpu_signal 2009-08-24 08:21:42 -05:00
target-sparc cleanup cpu-exec.c, part 0/N: consolidate handle_cpu_signal 2009-08-24 08:21:42 -05:00
tcg X86_64: Use proper jumps/calls when displacement exceeds +-2G 2009-09-11 01:38:52 +04:00
tests Update to a hopefully more future proof FSF address 2009-07-16 20:47:01 +00:00
.gitignore multiboot.raw is a generated file 2009-08-27 20:30:22 -05:00
.gitmodules Bring pcbios, seabios, and vgabios into the tree as git submodules. Right now, 2009-09-04 10:13:29 -05:00
a.out.h
acl.c rename HAVE_FNMATCH_H to CONFIG_FNMATCH 2009-07-27 14:09:20 -05:00
acl.h Support ACLs for controlling VNC access ("Daniel P. Berrange") 2009-03-06 20:27:37 +00:00
aes.c Include assert.h from qemu-common.h 2009-05-13 20:54:26 +01:00
aes.h
aio.c Handle BH's queued by AIO completions in qemu_aio_flush() 2009-07-22 10:58:46 -05:00
alpha-dis.c Update to a hopefully more future proof FSF address 2009-07-16 20:47:01 +00:00
alpha.ld set SEARCH_PATH for the linker script from output of ld --verbose -v 2009-07-27 14:10:56 -05:00
arm-dis.c Update to a hopefully more future proof FSF address 2009-07-16 20:47:01 +00:00
arm-semi.c Update to a hopefully more future proof FSF address 2009-07-16 20:47:01 +00:00
arm.ld set SEARCH_PATH for the linker script from output of ld --verbose -v 2009-07-27 14:10:56 -05:00
balloon.h
block_int.h Add bdrv_aio_multiwrite 2009-09-11 10:18:06 -05:00
block.c Add bdrv_aio_multiwrite 2009-09-11 10:18:06 -05:00
block.h Add bdrv_aio_multiwrite 2009-09-11 10:18:06 -05:00
bswap.h rename WORDS_BIGENDIAN to HOST_WORDS_BIGENDIAN 2009-07-27 14:09:21 -05:00
bt-host.c Update to a hopefully more future proof FSF address 2009-07-16 20:47:01 +00:00
bt-host.h Clean build: Add bt-host.h 2009-03-10 21:43:35 +00:00
bt-vhci.c Update to a hopefully more future proof FSF address 2009-07-16 20:47:01 +00:00
buffered_file.c Fix compilation warnings when DEBUG_BUFFERED_FILE is defined 2009-09-09 17:31:26 -05:00
buffered_file.h
cache-utils.c
cache-utils.h
Changelog Update Changelog to reflect 0.10.2 release 2009-04-07 02:19:41 +00:00
check-qdict.c Introduce QDict unit-tests 2009-09-04 09:37:34 -05:00
check-qint.c Introduce QInt unit-tests 2009-09-04 09:37:33 -05:00
check-qstring.c Introduce QString unit-tests 2009-09-04 09:37:34 -05:00
cmd.c qemu-io: Improve portability (win32 now supported). 2009-09-09 14:57:20 -05:00
cmd.h Update to a hopefully more future proof FSF address 2009-07-16 20:47:01 +00:00
cocoa.m
CODING_STYLE Remove potentially offensive humor. 2009-04-07 02:10:16 +00:00
configure configure: fix Linux AIO detection 2009-09-09 17:31:27 -05:00
console.c rename WORDS_BIGENDIAN to HOST_WORDS_BIGENDIAN 2009-07-27 14:09:21 -05:00
console.h monitor: Port handler_1 to use QDict 2009-09-04 09:37:31 -05:00
COPYING
COPYING.LIB
cpu-all.h Unbreak large mem support by removing kqemu 2009-08-24 08:02:55 -05:00
cpu-common.h Make CPURead/WriteFunc structure 'const' 2009-08-25 18:29:31 +00:00
cpu-defs.h extend -smp parsing to include cores= and threads= options 2009-08-27 19:33:15 -05:00
cpu-exec.c cleanup cpu-exec.c, part 0/N: consolidate handle_cpu_signal 2009-08-24 08:21:42 -05:00
create_config We also need TARGET_<arechname> in Makefiles 2009-08-10 13:05:46 -05:00
cris-dis.c Update to a hopefully more future proof FSF address 2009-07-16 20:47:01 +00:00
curses_keys.h Fix Sparse warnings: "Using plain integer as NULL pointer" 2009-07-31 21:16:51 +00:00
curses.c Fix Sparse warnings: "Using plain integer as NULL pointer" 2009-07-31 21:16:51 +00:00
cutils.c Add bdrv_aio_multiwrite 2009-09-11 10:18:06 -05:00
d3des.c
d3des.h
def-helper.h def-helper.h allow helpers returning pointers 2009-08-22 17:23:55 +00:00
device_tree.c Remove unused variable 2009-05-24 21:24:33 +01:00
device_tree.h Wean device tree code off phys_ram_base. 2009-04-10 16:23:59 +00:00
dis-asm.h microblaze: Add disassembler. 2009-05-26 21:10:28 +02:00
disas.c rename WORDS_BIGENDIAN to HOST_WORDS_BIGENDIAN 2009-07-27 14:09:21 -05:00
disas.h
dma-helpers.c fully split aio_pool from BlockDriver 2009-05-27 09:46:03 -05:00
dma.h fully split aio_pool from BlockDriver 2009-05-27 09:46:03 -05:00
dyngen-exec.h rename HOST_BSD to CONFIG_BSD 2009-07-27 14:09:20 -05:00
elf_ops.h Fix symfind. 2009-08-10 13:05:25 -05:00
elf.h Avoid name clashes with symbols that leak from system headers 2009-07-18 13:16:51 +04:00
envlist.c linux-user: compile envlist.c only once 2009-08-15 08:47:42 +00:00
envlist.h linux-user: compile envlist.c only once 2009-08-15 08:47:42 +00:00
exec-all.h Unbreak large mem support by removing kqemu 2009-08-24 08:02:55 -05:00
exec.c microblaze: Trap on bus accesses to unmapped areas. 2009-09-03 13:25:09 +02:00
feature_to_c.sh Fix Sparse warnings: "Using plain integer as NULL pointer" 2009-07-31 21:16:51 +00:00
gdbstub.c kvm: Simplify cpu_synchronize_state() 2009-08-27 20:35:30 -05:00
gdbstub.h Guest debugging support for KVM (Jan Kiszka) 2009-03-12 20:12:48 +00:00
gen-icount.h
host-utils.c user: compile host-utils.c only once 2009-08-16 08:03:26 +00:00
host-utils.h user: compile host-utils.c only once 2009-08-16 08:03:26 +00:00
hostregs_helper.h Update to a hopefully more future proof FSF address 2009-07-16 20:47:01 +00:00
hpet.h
hppa-dis.c Update to a hopefully more future proof FSF address 2009-07-16 20:47:01 +00:00
hppa.ld set SEARCH_PATH for the linker script from output of ld --verbose -v 2009-07-27 14:10:56 -05:00
hxtool Fix hxtool. 2009-07-02 17:54:34 +00:00
i386-dis.c Update to a hopefully more future proof FSF address 2009-07-16 20:47:01 +00:00
i386.ld set SEARCH_PATH for the linker script from output of ld --verbose -v 2009-07-27 14:10:56 -05:00
ia64.ld set SEARCH_PATH for the linker script from output of ld --verbose -v 2009-07-27 14:10:56 -05:00
ioport-user.c ioport: use uint{32, 16, 8}_t for ioport value and pio_addr_t for ioport address. 2009-07-16 17:28:50 -05:00
ioport.c Make ioport default tables const 2009-09-06 16:32:13 +00:00
ioport.h ioport: use uint{32, 16, 8}_t for ioport value and pio_addr_t for ioport address. 2009-07-16 17:28:50 -05:00
keymaps.c Fix Sparse warnings: "Using plain integer as NULL pointer" 2009-07-31 21:16:51 +00:00
keymaps.h Add missing file from previous commit 2009-03-06 22:47:54 +00:00
kvm-all.c kvm: Simplify cpu_synchronize_state() 2009-08-27 20:35:30 -05:00
kvm.h kvm: Simplify cpu_synchronize_state() 2009-08-27 20:35:30 -05:00
libfdt_env.h Update to a hopefully more future proof FSF address 2009-07-16 20:47:01 +00:00
LICENSE
linux-aio.c raw-posix: add Linux native AIO support 2009-08-27 20:30:22 -05:00
loader.c rename WORDS_BIGENDIAN to HOST_WORDS_BIGENDIAN 2009-07-27 14:09:21 -05:00
m68k-dis.c Update to a hopefully more future proof FSF address 2009-07-16 20:47:01 +00:00
m68k-semi.c Update to a hopefully more future proof FSF address 2009-07-16 20:47:01 +00:00
m68k.ld set SEARCH_PATH for the linker script from output of ld --verbose -v 2009-07-27 14:10:56 -05:00
MAINTAINERS Unbreak large mem support by removing kqemu 2009-08-24 08:02:55 -05:00
Makefile qdev/scsi: add scsi bus support to qdev, convert drivers. 2009-09-09 14:57:19 -05:00
Makefile.hw qemu: move virtio-pci.o to near pci.o 2009-08-24 08:46:47 -05:00
Makefile.target qdev/isa: convert ne2000 2009-09-10 19:48:01 +04:00
microblaze-dis.c Update to a hopefully more future proof FSF address 2009-07-16 20:47:01 +00:00
migration-exec.c unify popen/fopen qemu wrappers 2009-08-24 08:02:55 -05:00
migration-fd.c add file descriptor migration 2009-08-27 19:33:15 -05:00
migration-tcp.c fix migration to obey -S 2009-07-30 09:50:36 -05:00
migration-unix.c Migration via unix sockets. 2009-08-24 08:01:42 -05:00
migration.c monitor: Port handler_2 to use QDict 2009-09-04 09:37:31 -05:00
migration.h monitor: Port handler_2 to use QDict 2009-09-04 09:37:31 -05:00
mips-dis.c Update to a hopefully more future proof FSF address 2009-07-16 20:47:01 +00:00
mips.ld set SEARCH_PATH for the linker script from output of ld --verbose -v 2009-07-27 14:10:56 -05:00
module.c Fix module initialization when more than 1 class is in use 2009-05-14 18:06:49 -05:00
module.h Convert machine registration to use module init functions 2009-05-21 08:47:55 -05:00
monitor.c monitor: Update supported types documentation 2009-09-04 09:37:33 -05:00
monitor.h monitor: Export QDict header 2009-09-04 09:37:30 -05:00
nbd.c Update to a hopefully more future proof FSF address 2009-07-16 20:47:01 +00:00
nbd.h Update to a hopefully more future proof FSF address 2009-07-16 20:47:01 +00:00
net-checksum.c Update to a hopefully more future proof FSF address 2009-07-16 20:47:01 +00:00
net.c Include sys-queue.h early to override system queue definitions on BSD 2009-09-04 17:47:09 +00:00
net.h monitor: Port handler_3 to use QDict 2009-09-04 09:37:31 -05:00
osdep.c Only build osdep once 2009-08-24 08:02:55 -05:00
osdep.h move useful type definitons to osdep.h 2009-08-27 20:30:20 -05:00
path.c user: compile path.c only once 2009-08-15 07:51:59 +00:00
pci-ids.txt
posix-aio-compat.c raw-posix: refactor AIO support 2009-08-27 20:30:22 -05:00
ppc64.ld set SEARCH_PATH for the linker script from output of ld --verbose -v 2009-07-27 14:10:56 -05:00
ppc-dis.c Update to a hopefully more future proof FSF address 2009-07-16 20:47:01 +00:00
ppc.ld set SEARCH_PATH for the linker script from output of ld --verbose -v 2009-07-27 14:10:56 -05:00
qdict-test-data.txt Introduce QDict test data file 2009-09-04 09:37:34 -05:00
qdict.c Shuffle lines to avoid gcc 3 warning about redundant redeclaration 2009-09-04 17:43:37 +00:00
qdict.h Introduce QDict 2009-09-04 09:37:29 -05:00
qemu_socket.h Fix windows build and clean up use of <windows.h> 2009-03-08 16:26:59 +00:00
qemu-aio.h fix qemu_aio_flush 2009-06-15 13:52:27 +02:00
qemu-binfmt-conf.sh
qemu-char.c char: Emit 'CLOSED' events on char device close 2009-08-24 08:21:42 -05:00
qemu-char.h char: Emit 'CLOSED' events on char device close 2009-08-24 08:21:42 -05:00
qemu-common.h Add bdrv_aio_multiwrite 2009-09-11 10:18:06 -05:00
qemu-config.c raw-posix: add Linux native AIO support 2009-08-27 20:30:22 -05:00
qemu-config.h QemuOpts: switch over -device. 2009-08-10 13:05:27 -05:00
qemu-doc.texi Add information w.r.t default GUS IRQ assigment 2009-09-10 20:05:59 +04:00
qemu-img-cmds.hx Use hxtool for qemu-img command list 2009-06-07 09:59:47 +03:00
qemu-img.c qmu-img: fix qemu-img convert to generate a valid image when the source referenced a backing file 2009-07-22 10:58:47 -05:00
qemu-img.texi Add new block driver for the VDI format (only aio supported) 2009-08-10 13:05:30 -05:00
qemu-io.c qemu-io: Improve portability (win32 now supported). 2009-09-09 14:57:20 -05:00
qemu-lock.h rename USE_NPTL to CONFIG_USE_NPTL 2009-07-27 14:10:55 -05:00
qemu-log.h
qemu-malloc.c Format per CODING_STYLE 2009-05-19 22:29:20 +04:00
qemu-monitor.hx monitor: New format for handlers argument types 2009-09-04 09:37:29 -05:00
qemu-nbd.c Fix Sparse warnings: "Using plain integer as NULL pointer" 2009-07-31 21:16:51 +00:00
qemu-nbd.texi
qemu-option.c mv from strdup to qemu_strdup in qemu-option.c 2009-09-09 14:57:21 -05:00
qemu-option.h QemuOpts: add some functions 2009-08-10 13:05:25 -05:00
qemu-options.hx add documentation for multi-core features 2009-09-04 09:37:26 -05:00
qemu-sockets.c Fix in file qemu-sockets.c 2009-05-08 16:11:49 -05:00
qemu-tech.texi Unbreak large mem support by removing kqemu 2009-08-24 08:02:55 -05:00
qemu-thread.c qemu-thread: use pthread_equal 2009-07-22 10:58:49 -05:00
qemu-thread.h qemu: mutex/thread/cond wrappers and configure tweaks (Marcelo Tosatti) 2009-04-24 18:03:15 +00:00
qemu-timer.h variable timer intervals 2009-08-10 13:05:31 -05:00
qemu-tool.c Fix most warnings (errors with -Werror) when debugging is enabled 2009-07-20 17:19:25 +00:00
qemu.sasl Add SASL authentication support ("Daniel P. Berrange") 2009-03-06 20:27:28 +00:00
qint.c Shuffle lines to avoid gcc 3 warning about redundant redeclaration 2009-09-04 17:43:37 +00:00
qint.h Introduce QInt 2009-09-04 09:37:29 -05:00
qobject.h Introduce QDict 2009-09-04 09:37:29 -05:00
qstring.c Shuffle lines to avoid gcc 3 warning about redundant redeclaration 2009-09-04 17:43:37 +00:00
qstring.h Introduce QString 2009-09-04 09:37:29 -05:00
readline.c readline: Remove unneeded qemu_mallocz() check 2009-06-16 15:18:37 -05:00
readline.h monitor: Improve mux'ed console experience (Jan Kiszka) 2009-03-05 23:01:47 +00:00
README
rules.mak Remove CFLAGS parameter in cc-option 2009-09-09 17:31:24 -05:00
s390-dis.c Update to a hopefully more future proof FSF address 2009-07-16 20:47:01 +00:00
s390.ld set SEARCH_PATH for the linker script from output of ld --verbose -v 2009-07-27 14:10:56 -05:00
savevm.c savevm: Convert loadvm handlers list to LIST 2009-09-09 14:55:16 -05:00
sdl_keysym.h Fix Sparse warnings: "Using plain integer as NULL pointer" 2009-07-31 21:16:51 +00:00
sdl_zoom_template.h sdl zooming 2009-06-29 08:52:44 -05:00
sdl_zoom.c Fix sdl_zoom compile problems on OpenBSD 2009-07-01 18:49:34 +00:00
sdl_zoom.h Remove SDL/ prefix 2009-07-08 18:25:37 +04:00
sdl.c Allow to unscale the output window with a Ctrl-Alt-u hotkey 2009-09-10 05:16:16 +04:00
sh4-dis.c Update to a hopefully more future proof FSF address 2009-07-16 20:47:01 +00:00
softmmu_defs.h
softmmu_exec.h Allow 5 mmu indexes. 2009-04-07 21:47:27 +00:00
softmmu_header.h Remove dead i386 assembly code from softmmu_header.h 2009-07-16 17:28:50 -05:00
softmmu_template.h Unbreak large mem support by removing kqemu 2009-08-24 08:02:55 -05:00
softmmu-semi.h
sparc64.ld set SEARCH_PATH for the linker script from output of ld --verbose -v 2009-07-27 14:10:56 -05:00
sparc-dis.c Fix Sparse warnings: "Using plain integer as NULL pointer" 2009-07-31 21:16:51 +00:00
sparc.ld set SEARCH_PATH for the linker script from output of ld --verbose -v 2009-07-27 14:10:56 -05:00
sys-queue.h Add LIST_FOREACH_SAFE() definition 2009-09-09 14:55:16 -05:00
sysemu.h monitor: Port handler_3 to use QDict 2009-09-04 09:37:31 -05:00
tap-win32.c tap-win32: Use correct headers. 2009-07-27 14:09:15 -05:00
targphys.h kvm: Mark full address range dirty on live migration start 2009-05-28 02:14:56 -05:00
texi2pod.pl Update to a hopefully more future proof FSF address 2009-07-16 20:47:01 +00:00
thunk.c Update to a hopefully more future proof FSF address 2009-07-16 20:47:01 +00:00
thunk.h Update to a hopefully more future proof FSF address 2009-07-16 20:47:01 +00:00
TODO
translate-all.c Update to a hopefully more future proof FSF address 2009-07-16 20:47:01 +00:00
uboot_image.h Update to a hopefully more future proof FSF address 2009-07-16 20:47:01 +00:00
usb-bsd.c USB: use opaque parameter passing for monitor handle 2009-09-07 19:00:18 +00:00
usb-linux.c qdev/usb: make qemu aware of usb busses. 2009-09-09 14:55:17 -05:00
usb-stub.c
VERSION Update version for 0.11 development 2009-07-16 18:12:18 -05:00
vgafont.h
vl.c Revert "don't call cpu_sychronize_state from reset handlers" 2009-09-11 10:18:06 -05:00
vnc_keysym.h More NULL pointer fixes 2009-08-01 10:13:20 +00:00
vnc-auth-sasl.c Remove tabs introduced from VNC ACL series 2009-03-06 20:27:40 +00:00
vnc-auth-sasl.h Support ACLs for controlling VNC access ("Daniel P. Berrange") 2009-03-06 20:27:37 +00:00
vnc-auth-vencrypt.c Add more missing files 2009-03-06 23:44:29 +00:00
vnc-auth-vencrypt.h Add more missing files 2009-03-06 23:44:29 +00:00
vnc-tls.c Add more missing files 2009-03-06 23:44:29 +00:00
vnc-tls.h Add more missing files 2009-03-06 23:44:29 +00:00
vnc.c When using stdio monitor and VNC display, one can set or clear a VNC password; this should set or turn off VNC authentication as well. 2009-08-24 08:01:40 -05:00
vnc.h variable timer intervals 2009-08-10 13:05:31 -05:00
vnchextile.h single vnc server surface 2009-08-10 13:05:30 -05:00
x86_64.ld set SEARCH_PATH for the linker script from output of ld --verbose -v 2009-07-27 14:10:56 -05:00
x_keymap.c
x_keymap.h

README 

Read the documentation in qemu-doc.html.

Fabrice Bellard.