[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH v12 21/21] migration: Stop sending whole pages t
From: |
Dr. David Alan Gilbert |
Subject: |
Re: [Qemu-devel] [PATCH v12 21/21] migration: Stop sending whole pages through main channel |
Date: |
Thu, 3 May 2018 16:24:03 +0100 |
User-agent: |
Mutt/1.9.5 (2018-04-13) |
* Juan Quintela (address@hidden) wrote:
> We have to flush() the QEMUFile because now we sent really few data
> through that channel.
I think this makes sense, so
Reviewed-by: Dr. David Alan Gilbert <address@hidden>
However, I think again it could really be folded into an earlier patch,
except the fflush's themselves which do make sense here.
Dave
> Signed-off-by: Juan Quintela <address@hidden>
> ---
> migration/ram.c | 11 +++--------
> 1 file changed, 3 insertions(+), 8 deletions(-)
>
> diff --git a/migration/ram.c b/migration/ram.c
> index 23203756b7..f5cff2eb59 100644
> --- a/migration/ram.c
> +++ b/migration/ram.c
> @@ -1634,20 +1634,12 @@ static int ram_multifd_page(RAMState *rs,
> PageSearchStatus *pss,
> bool last_stage)
> {
> int pages;
> - uint8_t *p;
> RAMBlock *block = pss->block;
> ram_addr_t offset = pss->page << TARGET_PAGE_BITS;
>
> - p = block->host + offset;
> -
> pages = save_zero_page(rs, block, offset);
> if (pages == -1) {
> - ram_counters.transferred +=
> - save_page_header(rs, rs->f, block,
> - offset | RAM_SAVE_FLAG_PAGE);
> multifd_queue_page(block, offset);
> - qemu_put_buffer(rs->f, p, TARGET_PAGE_SIZE);
> - ram_counters.transferred += TARGET_PAGE_SIZE;
> pages = 1;
> ram_counters.normal++;
> }
> @@ -2869,6 +2861,7 @@ static int ram_save_setup(QEMUFile *f, void *opaque)
>
> multifd_send_sync_main();
> qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
> + qemu_fflush(f);
>
> return 0;
> }
> @@ -2946,6 +2939,7 @@ static int ram_save_iterate(QEMUFile *f, void *opaque)
> multifd_send_sync_main();
> out:
> qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
> + qemu_fflush(f);
> ram_counters.transferred += 8;
>
> ret = qemu_file_get_error(f);
> @@ -2999,6 +2993,7 @@ static int ram_save_complete(QEMUFile *f, void *opaque)
>
> multifd_send_sync_main();
> qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
> + qemu_fflush(f);
>
> return 0;
> }
> --
> 2.17.0
>
--
Dr. David Alan Gilbert / address@hidden / Manchester, UK
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- Re: [Qemu-devel] [PATCH v12 21/21] migration: Stop sending whole pages through main channel,
Dr. David Alan Gilbert <=