Add RamlockDirtyInfo to store sampled page info of each ramblock.
Signed-off-by: Chuan Zheng <zhengch...@huawei.com>
Signed-off-by: YanYing Zhuang <ann.zhuangyany...@huawei.com>
---
migration/dirtyrate.h | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/migration/dirtyrate.h b/migration/dirtyrate.h
index 914c363..9650566 100644
--- a/migration/dirtyrate.h
+++ b/migration/dirtyrate.h
@@ -19,6 +19,11 @@
*/
#define DIRTYRATE_DEFAULT_SAMPLE_PAGES 256
+/*
+ * Record ramblock idstr
+ */
+#define RAMBLOCK_INFO_MAX_LEN 256
+
/* Take 1s as default for calculation duration */
#define DEFAULT_FETCH_DIRTYRATE_TIME_SEC 1
@@ -39,6 +44,19 @@ typedef enum {
CAL_DIRTY_RATE_END,
} CalculatingDirtyRateState;
+/*
+ * Store dirtypage info for each ramblock.
+ */
+struct RamblockDirtyInfo {
+ char idstr[RAMBLOCK_INFO_MAX_LEN]; /* idstr for each ramblock */
+ uint8_t *ramblock_addr; /* base address of ramblock we measure */
+ size_t ramblock_pages; /* sum of dividation by 4K pages for ramblock */
+ size_t *sample_page_vfn; /* relative offset address for sampled page */
+ unsigned int sample_pages_count; /* sum of sampled pages */
+ unsigned int sample_dirty_count; /* sum of dirty pages we measure */
+ uint8_t *hash_result; /* array of hash result for sampled pages */
+};
+
void *get_dirtyrate_thread(void *arg);
#endif
--
1.8.3.1
