diff mbox series

[v9,03/12] migration/dirtyrate: Add RamblockDirtyInfo to store sampled page info

Message ID 1600137887-58739-4-git-send-email-zhengchuan@huawei.com
State Superseded
Headers show
Series *** A Method for evaluating dirty page rate *** | expand

Commit Message

Zheng Chuan Sept. 15, 2020, 2:44 a.m. UTC
Add RamblockDirtyInfo to store sampled page info of each ramblock.

Signed-off-by: Chuan Zheng <zhengchuan@huawei.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: David Edmondson <david.edmondson@oracle.com>
---
 migration/dirtyrate.h | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

Comments

Li Qiang Sept. 15, 2020, 4:17 p.m. UTC | #1
Chuan Zheng <zhengchuan@huawei.com> 于2020年9月15日周二 上午10:34写道:
>

> Add RamblockDirtyInfo to store sampled page info of each ramblock.

>

> Signed-off-by: Chuan Zheng <zhengchuan@huawei.com>

> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

> Reviewed-by: David Edmondson <david.edmondson@oracle.com>


Reviewed-by: Li Qiang <liq3ea@gmail.com>


> ---

>  migration/dirtyrate.h | 18 ++++++++++++++++++

>  1 file changed, 18 insertions(+)

>

> diff --git a/migration/dirtyrate.h b/migration/dirtyrate.h

> index 5be9714..479e222 100644

> --- a/migration/dirtyrate.h

> +++ b/migration/dirtyrate.h

> @@ -19,11 +19,29 @@

>   */

>  #define DIRTYRATE_DEFAULT_SAMPLE_PAGES            512

>

> +/*

> + * Record ramblock idstr

> + */

> +#define RAMBLOCK_INFO_MAX_LEN                     256

> +

>  struct DirtyRateConfig {

>      uint64_t sample_pages_per_gigabytes; /* sample pages per GB */

>      int64_t sample_period_seconds; /* time duration between two sampling */

>  };

>

> +/*

> + * 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 */

> +    uint64_t ramblock_pages; /* ramblock size in TARGET_PAGE_SIZE */

> +    uint64_t *sample_page_vfn; /* relative offset address for sampled page */

> +    uint64_t sample_pages_count; /* count of sampled pages */

> +    uint64_t sample_dirty_count; /* count of dirty pages we measure */

> +    uint32_t *hash_result; /* array of hash result for sampled pages */

> +};

> +

>  void *get_dirtyrate_thread(void *arg);

>  #endif

>

> --

> 1.8.3.1

>
diff mbox series

Patch

diff --git a/migration/dirtyrate.h b/migration/dirtyrate.h
index 5be9714..479e222 100644
--- a/migration/dirtyrate.h
+++ b/migration/dirtyrate.h
@@ -19,11 +19,29 @@ 
  */
 #define DIRTYRATE_DEFAULT_SAMPLE_PAGES            512
 
+/*
+ * Record ramblock idstr
+ */
+#define RAMBLOCK_INFO_MAX_LEN                     256
+
 struct DirtyRateConfig {
     uint64_t sample_pages_per_gigabytes; /* sample pages per GB */
     int64_t sample_period_seconds; /* time duration between two sampling */
 };
 
+/*
+ * 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 */
+    uint64_t ramblock_pages; /* ramblock size in TARGET_PAGE_SIZE */
+    uint64_t *sample_page_vfn; /* relative offset address for sampled page */
+    uint64_t sample_pages_count; /* count of sampled pages */
+    uint64_t sample_dirty_count; /* count of dirty pages we measure */
+    uint32_t *hash_result; /* array of hash result for sampled pages */
+};
+
 void *get_dirtyrate_thread(void *arg);
 #endif