Would this one be picked up in this version? On Thu, Nov 07, 2019 at 08:39:01PM +0800, Wei Yang wrote: >This patch set tries enable compress during postcopy. > >postcopy requires to place a whole host page, while migration thread migrate >memory in target page size. This makes postcopy need to collect all target >pages in one host page before placing via userfaultfd. > >To enable compress during postcopy, there are two problems to solve: > > 1. Random order for target page arrival > 2. Target pages in one host page arrives without interrupt by target > page from other host page > >The first one is handled by counting the number of target pages arrived >instead of the last target page arrived. > >The second one is handled by: > > 1. Flush compress thread for each host page > 2. Wait for decompress thread for before placing host page > >With the combination of these two changes, compress is enabled during >postcopy. > >--- >v2: > * use uintptr_t to calculate place_dest > * check target pages belongs to the same host page > >Wei Yang (6): > migration/postcopy: reduce memset when it is zero page and > matches_target_page_size > migration/postcopy: wait for decompress thread in precopy > migration/postcopy: count target page number to decide the > place_needed > migration/postcopy: set all_zero to true on the first target page > migration/postcopy: enable random order target page arrival > migration/postcopy: enable compress during postcopy > > migration/migration.c | 11 ------- > migration/ram.c | 67 +++++++++++++++++++++++++++++++++---------- > 2 files changed, 52 insertions(+), 26 deletions(-) > >-- >2.17.1
-- Wei Yang Help you, Help me
