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| author | Chuan Zheng <zhengchuan@huawei.com> | 2020-09-16 14:21:58 +0800 |
|---|---|---|
| committer | Dr. David Alan Gilbert <dgilbert@redhat.com> | 2020-09-25 12:45:57 +0100 |
| commit | a2635f0a7508c3291c6bd2d88ea31b6ae7dfa341 (patch) | |
| tree | a01c3a53fdd335266ca0b2d8b4ef9696a68c2728 /migration | |
| parent | 7df3aa30838c010ce9b2f587afdcd6609386f630 (diff) | |
| download | qemu-a2635f0a7508c3291c6bd2d88ea31b6ae7dfa341.zip | |
migration/dirtyrate: Add RamblockDirtyInfo to store sampled page info
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>
Message-Id: <1600237327-33618-4-git-send-email-zhengchuan@huawei.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'migration')
| -rw-r--r-- | migration/dirtyrate.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/migration/dirtyrate.h b/migration/dirtyrate.h index 84ab9409ac..8707df852d 100644 --- a/migration/dirtyrate.h +++ b/migration/dirtyrate.h @@ -19,10 +19,28 @@ */ #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 |