tree aae0bcc79d0e1ee17da9f7cd53ba1150bf29210e
parent 6ea1fbb2f1dfb9bf324ca689e788e54ba7b87520
author Charles William Dick <cwd@google.com> 1632199915 +0900
committer Commit Bot <commit-bot@chromium.org> 1632272806 +0000

vm_tools: concierge virtio_balloon unreclaimable

This CL uses the shared-memory and unevictable-memory stats introduced
in https://crrev.com/c/3115084 and https://crrev.com/c/3168561 to
correclty size the balloon so that LMKD doesn't kill the foreground app.

Without this change, the balloon policy thinks there is a lot of
reclaimable memory, and inflates to reclaim some of it. When from LMKD's
point of view, there is very little reclaimable memory because most of
the page cache is shared memory or unevictable.

BUG=b:198468047
TEST=candy crush works
cros_workon_make --board=${BOARD} vm_host_tools --test

Cq-Depend: chromium:3115084, chromium:3168561
Change-Id: I7fd712a9d07d45f2f5eb894615cc879ab58fea5a
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform2/+/3172060
Tested-by: Charles William Dick <cwd@google.com>
Reviewed-by: Chirantan Ekbote <chirantan@chromium.org>
Commit-Queue: Charles William Dick <cwd@google.com>