On 24.10.2013 12:07, Juan Quintela wrote:
Peter Lieven wrote:
The madvise for zeroed out pages was introduced when every transferred
zero page was memset to zero and thus allocated. Since commit
211ea740 we check for zeroness of a target page before we memset
it to zero. Additionally we memmap
The comments of ram_handle_compressed needs to be changed accordingly,
"Do not memset pages to zero if they already read as zero to avoid allocating
zero pages and consuming memory unnecessarily."
Thanks,
Zhang Haoyu
> The madvise for zeroed out pages was introduced when every transferred
> zer
Peter Lieven wrote:
> The madvise for zeroed out pages was introduced when every transferred
> zero page was memset to zero and thus allocated. Since commit
> 211ea740 we check for zeroness of a target page before we memset
> it to zero. Additionally we memmap target memory so it is essentially
>
The madvise for zeroed out pages was introduced when every transferred
zero page was memset to zero and thus allocated. Since commit
211ea740 we check for zeroness of a target page before we memset
it to zero. Additionally we memmap target memory so it is essentially
zero initialized (except for e.