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Re: [PATCH v5 03/12] migration/dirtyrate: Add RamlockDirtyInfo to store
From: |
Dr. David Alan Gilbert |
Subject: |
Re: [PATCH v5 03/12] migration/dirtyrate: Add RamlockDirtyInfo to store sampled page info |
Date: |
Wed, 26 Aug 2020 12:59:00 +0100 |
User-agent: |
Mutt/1.14.6 (2020-07-11) |
* Chuan Zheng (zhengchuan@huawei.com) wrote:
> Add RamlockDirtyInfo to store sampled page info of each ramblock.
Note typo 'RAM*B*lockDirtyInfo' (and in the title.
> Signed-off-by: Chuan Zheng <zhengchuan@huawei.com>
> ---
> migration/dirtyrate.h | 18 ++++++++++++++++++
> 1 file changed, 18 insertions(+)
>
> diff --git a/migration/dirtyrate.h b/migration/dirtyrate.h
> index 33669b7..dc45419 100644
> --- a/migration/dirtyrate.h
> +++ b/migration/dirtyrate.h
> @@ -19,6 +19,11 @@
> */
> #define DIRTYRATE_DEFAULT_SAMPLE_PAGES 512
>
> +/*
> + * Record ramblock idstr
> + */
> +#define RAMBLOCK_INFO_MAX_LEN 256
> +
> /* Take 1s as default for calculation duration */
> #define DEFAULT_FETCH_DIRTYRATE_TIME_SEC 1
>
> @@ -27,6 +32,19 @@ struct DirtyRateConfig {
> 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 4K-page */
> + 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 */
I see you've already fixed that one that David Edmondson commented on; I
thin you actually posted this as a second v5.
Since it's fixed, with the RAM*B*lock typo fixed;
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
> + uint32_t *hash_result; /* array of hash result for sampled pages */
> +};
> +
> void *get_dirtyrate_thread(void *arg);
> #endif
>
> --
> 1.8.3.1
>
--
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK
- Re: [PATCH v5 09/12] migration/dirtyrate: Implement get_sample_page_period() and block_sample_page_period(), (continued)
- [PATCH v5 12/12] migration/dirtyrate: Add trace_calls to make it easier to debug, Chuan Zheng, 2020/08/24
- [PATCH v5 10/12] migration/dirtyrate: Implement calculate_dirtyrate() function, Chuan Zheng, 2020/08/24
- Re: [PATCH v5 00/12] *** A Method for evaluating dirty page rate ***, no-reply, 2020/08/24
- [PATCH v5 00/12] *** A Method for evaluating dirty page rate ***, Chuan Zheng, 2020/08/24
- [PATCH v5 06/12] migration/dirtyrate: Record hash results for each sampled page, Chuan Zheng, 2020/08/24
[PATCH v5 02/12] migration/dirtyrate: add DirtyRateStatus to denote calculation status, Chuan Zheng, 2020/08/24