From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Subject: Re: [PATCH 03/12] migration: fix counting xbzrle
 cache_miss_rate
Date: Fri, 15 Jun 2018 12:30:54 +0100
Message-ID: <20180615113054.GD13796@work-vm>
References: <20180604095520.8563-1-xiaoguangrong@tencent.com>
	<20180604095520.8563-4-xiaoguangrong@tencent.com>
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Cc: kvm@vger.kernel.org, mst@redhat.com, mtosatti@redhat.com,
	Xiao Guangrong <xiaoguangrong@tencent.com>,
	qemu-devel@nongnu.org, peterx@redhat.com, wei.w.wang@intel.com,
	jiang.biao2@zte.com.cn, pbonzini@redhat.com
To: guangrong.xiao@gmail.com
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* guangrong.xiao@gmail.com (guangrong.xiao@gmail.com) wrote:
> From: Xiao Guangrong <xiaoguangrong@tencent.com>
> 
> Sync up xbzrle_cache_miss_prev only after migration iteration goes
> forward
> 
> Signed-off-by: Xiao Guangrong <xiaoguangrong@tencent.com>

This patch (not the whole set) queued

> ---
>  migration/ram.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/migration/ram.c b/migration/ram.c
> index dbf24d8c87..dd1283dd45 100644
> --- a/migration/ram.c
> +++ b/migration/ram.c
> @@ -1189,9 +1189,9 @@ static void migration_bitmap_sync(RAMState *rs)
>                     (double)(xbzrle_counters.cache_miss -
>                              rs->xbzrle_cache_miss_prev) /
>                     (rs->iterations - rs->iterations_prev);
> +                rs->xbzrle_cache_miss_prev = xbzrle_counters.cache_miss;
>              }
>              rs->iterations_prev = rs->iterations;
> -            rs->xbzrle_cache_miss_prev = xbzrle_counters.cache_miss;
>          }
>  
>          /* reset period counters */
> -- 
> 2.14.4
> 
> 
--
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK