7069532e3b
Use Neon instructions to perform zero checking of buffer. This is helps in reducing total migration time. Use case: Idle VM live migration with 4 VCPUS and 8GB ram running CentOS 7. Without Neon, the Total migration time is 3.5 Sec Migration status: completed total time: 3560 milliseconds downtime: 33 milliseconds setup: 5 milliseconds transferred ram: 297907 kbytes throughput: 685.76 mbps remaining ram: 0 kbytes total ram: 8519872 kbytes duplicate: 2062760 pages skipped: 0 pages normal: 69808 pages normal bytes: 279232 kbytes dirty sync count: 3 With Neon, the total migration time is 2.9 Sec Migration status: completed total time: 2960 milliseconds downtime: 65 milliseconds setup: 4 milliseconds transferred ram: 299869 kbytes throughput: 830.19 mbps remaining ram: 0 kbytes total ram: 8519872 kbytes duplicate: 2064313 pages skipped: 0 pages normal: 70294 pages normal bytes: 281176 kbytes dirty sync count: 3 Signed-off-by: Vijaya Kumar K <vijayak@cavium.com> Signed-off-by: Suresh <ksuresh@cavium.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Message-id: 1467190029-694-2-git-send-email-vijayak@cavium.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> |
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| .. | ||
| Makefile.objs | ||
| acl.c | ||
| base64.c | ||
| bitmap.c | ||
| bitops.c | ||
| buffer.c | ||
| compatfd.c | ||
| coroutine-gthread.c | ||
| coroutine-sigaltstack.c | ||
| coroutine-ucontext.c | ||
| coroutine-win32.c | ||
| crc32c.c | ||
| cutils.c | ||
| envlist.c | ||
| error.c | ||
| event_notifier-posix.c | ||
| event_notifier-win32.c | ||
| fifo8.c | ||
| getauxval.c | ||
| hbitmap.c | ||
| hexdump.c | ||
| host-utils.c | ||
| id.c | ||
| iov.c | ||
| log.c | ||
| memfd.c | ||
| mmap-alloc.c | ||
| module.c | ||
| notify.c | ||
| osdep.c | ||
| oslib-posix.c | ||
| oslib-win32.c | ||
| path.c | ||
| qdist.c | ||
| qemu-config.c | ||
| qemu-coroutine-io.c | ||
| qemu-coroutine-lock.c | ||
| qemu-coroutine-sleep.c | ||
| qemu-coroutine.c | ||
| qemu-error.c | ||
| qemu-openpty.c | ||
| qemu-option.c | ||
| qemu-progress.c | ||
| qemu-sockets.c | ||
| qemu-thread-posix.c | ||
| qemu-thread-win32.c | ||
| qemu-timer-common.c | ||
| qht.c | ||
| range.c | ||
| rcu.c | ||
| readline.c | ||
| rfifolock.c | ||
| throttle.c | ||
| timed-average.c | ||
| trace-events | ||
| unicode.c | ||
| uri.c | ||