On 06/13/2018 11:51 PM, Dr. David Alan Gilbert wrote:
* guangrong.xiao@xxxxxxxxx (guangrong.xiao@xxxxxxxxx) wrote:
From: Xiao Guangrong <xiaoguangrong@xxxxxxxxxxx>
The compressed page is not normal page
Is this the right reason?
I think the 'normal' page shouldn't include the compressed
page and XBZRLE-ed page (the current code does not treat
xbzrle pages are normal as well).
I think we always increment some counter for a page - so
what gets incremented for a compressed page?
In the later patch, we will introduce the statistics of
compression which contains "pages":
@pages: amount of pages compressed and transferred to the target VM
Is the real answer that we do:
ram_save_target_page
control_save_page
compress_page_with_multi_thread
and control_save_page already increments the counter?
No :), control_save_page increments the counter only if it posted
data out, under that case, the compression path is not invoked.
Thanks!
