Peter Lieven 49f676a00a bitops: unroll while loop in find_next_bit() ...

this patch adopts the loop unrolling idea of bitmap_is_zero() to
speed up the skipping of large areas with zeros in find_next_bit().

this routine is extensively used to find dirty pages in
live migration.

testing only the find_next_bit performance on a zeroed bitfield
the loop onrolling decreased executing time by approx. 50% on x86_64.

Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Juan Quintela <quintela@redhat.com>

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

..

acl.c

acl: Free memory allocated with g_malloc() with g_free()

2013-01-15 18:25:41 -06:00

aes.c

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bitmap.c

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bitops.c

bitops: unroll while loop in find_next_bit()

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

cache-utils.c

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compatfd.c

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cutils.c

buffer_is_zero: use vector optimizations if possible

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

envlist.c

util: Fix compilation of envlist.c for MinGW

2013-02-02 20:13:19 +00:00

error.c

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event_notifier-posix.c

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event_notifier-win32.c

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fifo8.c

hw: move fifo.[ch] to libqemuutil

2013-03-01 13:53:10 +01:00

hbitmap.c

hbitmap: Use non-bitops ctzl

2013-02-16 11:11:34 +00:00

hexdump.c

iov: Factor out hexdumper

2013-03-15 16:41:58 +00:00

host-utils.c

host-utils: Improve mulu64 and muls64

2013-02-17 14:28:58 +00:00

iov.c

iov: Factor out hexdumper

2013-03-15 16:41:58 +00:00

Makefile.objs

iov: Factor out hexdumper

2013-03-15 16:41:58 +00:00

module.c

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notify.c

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osdep.c

osdep: replace setsockopt by qemu_setsockopt

2013-03-08 10:22:14 +01:00

oslib-posix.c

oslib-posix: Align to permit transparent hugepages on ARM Linux

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

oslib-win32.c

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path.c

Replace non-portable asprintf by g_strdup_printf

2013-01-19 10:24:43 +00:00

qemu-config.c

hw: move qdev-monitor.o to toplevel directory

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

qemu-error.c

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qemu-option.c

qemu-option: Add qemu_opts_absorb_qdict()

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

qemu-progress.c

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qemu-sockets.c

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

2013-03-22 13:08:01 -05:00

qemu-thread-posix.c

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qemu-thread-win32.c

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qemu-timer-common.c

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uri.c

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