tests/migration: Introduce dirty-ring-size option into guestperf

Dirty ring size configuration is not supported by guestperf tool.

Introduce dirty-ring-size (ranges in [1024, 65536]) option so
developers can play with dirty-ring and dirty-limit feature easier.

To set dirty ring size with 4096 during migration test:
$ ./tests/migration/guestperf.py --dirty-ring-size 4096 xxx

Signed-off-by: Hyman Huang <yong.huang@smartx.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <8a388cec5c1f73a34d42515bbc43837e97ee3839.1698847223.git.yong.huang@smartx.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/tests/migration/guestperf/shell.py b/tests/migration/guestperf/shell.py
index 8a809e3dda..7d6b8cd7cf 100644
--- a/tests/migration/guestperf/shell.py
+++ b/tests/migration/guestperf/shell.py
@@ -60,6 +60,8 @@ class BaseShell(object):
         parser.add_argument("--prealloc-pages", dest="prealloc_pages", default=False)
         parser.add_argument("--huge-pages", dest="huge_pages", default=False)
         parser.add_argument("--locked-pages", dest="locked_pages", default=False)
+        parser.add_argument("--dirty-ring-size", dest="dirty_ring_size",
+                            default=0, type=int)
 
         self._parser = parser
 
@@ -89,7 +91,9 @@ class BaseShell(object):
 
                         locked_pages=args.locked_pages,
                         huge_pages=args.huge_pages,
-                        prealloc_pages=args.prealloc_pages)
+                        prealloc_pages=args.prealloc_pages,
+
+                        dirty_ring_size=args.dirty_ring_size)
 
 
 class Shell(BaseShell):