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| State | Superseded |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