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Re: [PATCH v14 3/7] migration/dirtyrate: Refactor dirty page rate calcul
From: |
Peter Xu |
Subject: |
Re: [PATCH v14 3/7] migration/dirtyrate: Refactor dirty page rate calculation |
Date: |
Mon, 14 Feb 2022 15:57:31 +0800 |
Mostly good, one trivial nit below:
On Fri, Feb 11, 2022 at 12:17:37AM +0800, huangy81@chinatelecom.cn wrote:
> +int64_t vcpu_calculate_dirtyrate(int64_t calc_time_ms,
> + int64_t init_time_ms,
> + VcpuStat *stat,
> + unsigned int flag,
> + bool one_shot)
> +{
> + DirtyPageRecord *records;
> + int64_t duration;
> + int64_t dirtyrate;
> + int i = 0;
> + unsigned int gen_id;
> +
> +retry:
> + cpu_list_lock();
> + gen_id = cpu_list_generation_id_get();
> + records = vcpu_dirty_stat_alloc(stat);
> + vcpu_dirty_stat_collect(stat, records, true);
> + cpu_list_unlock();
> +
> + duration = dirty_stat_wait(calc_time_ms, init_time_ms);
Is it a must to pass in init_time_ms rather than always sleep in
dirty_stat_wait()? Could we simply drop it?
--
Peter Xu