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Re: [PATCH v9 03/12] migration/dirtyrate: Add RamblockDirtyInfo to store
From: |
Li Qiang |
Subject: |
Re: [PATCH v9 03/12] migration/dirtyrate: Add RamblockDirtyInfo to store sampled page info |
Date: |
Wed, 16 Sep 2020 00:17:45 +0800 |
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
>
- [PATCH v9 00/12] *** A Method for evaluating dirty page rate ***, Chuan Zheng, 2020/09/14
- [PATCH v9 09/12] migration/dirtyrate: Implement set_sample_page_period() and is_sample_period_valid(), Chuan Zheng, 2020/09/14
- [PATCH v9 01/12] migration/dirtyrate: setup up query-dirtyrate framwork, Chuan Zheng, 2020/09/14
- [PATCH v9 03/12] migration/dirtyrate: Add RamblockDirtyInfo to store sampled page info, Chuan Zheng, 2020/09/14
- Re: [PATCH v9 03/12] migration/dirtyrate: Add RamblockDirtyInfo to store sampled page info,
Li Qiang <=
- [PATCH v9 07/12] migration/dirtyrate: Compare page hash results for recorded sampled page, Chuan Zheng, 2020/09/14
- [PATCH v9 06/12] migration/dirtyrate: Record hash results for each sampled page, Chuan Zheng, 2020/09/14
- [PATCH v9 02/12] migration/dirtyrate: add DirtyRateStatus to denote calculation status, Chuan Zheng, 2020/09/14
- [PATCH v9 04/12] migration/dirtyrate: Add dirtyrate statistics series functions, Chuan Zheng, 2020/09/14
- [PATCH v9 08/12] migration/dirtyrate: skip sampling ramblock with size below MIN_RAMBLOCK_SIZE, Chuan Zheng, 2020/09/14