[pbs-devel] applied: [PATCH backup 1/2] client: avoid division by zero in avg speed calculation, be more accurate

[Dietmar Maurer]

Why don't you use a single duration.as_secs_f64() and compute speed using floting point?


> On 07/24/2020 10:16 AM Thomas Lamprecht <t.lamprecht at proxmox.com> wrote:
> 
>  
> using micros vs. as_secs_f64 allows to have it calculated as usize
> bytes, easier to handle - this was also used when it still lived in
> upload_chunk_info_stream
> 
> Co-authored-by: Stoiko Ivanov <s.ivanov at proxmox.com>
> Signed-off-by: Thomas Lamprecht <t.lamprecht at proxmox.com>
> ---
>  src/client/backup_writer.rs | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/src/client/backup_writer.rs b/src/client/backup_writer.rs
> index 7e5adb3..2344045 100644
> --- a/src/client/backup_writer.rs
> +++ b/src/client/backup_writer.rs
> @@ -264,7 +264,7 @@ impl BackupWriter {
>              crate::tools::format::strip_server_file_expenstion(archive_name.clone())
>          };
>          if archive_name != CATALOG_NAME {
> -            let speed: HumanByte = (uploaded / (duration.as_secs() as usize)).into();
> +            let speed: HumanByte = ((uploaded * 1_000_000) / (duration.as_micros() as usize)).into();
>              let uploaded: HumanByte = uploaded.into();
>              println!("{}: had to upload {} from {} in {}s, avgerage speed {}/s).", archive, uploaded, vsize_h, duration.as_secs(), speed);
>          } else {
> -- 
> 2.27.0
> 
> 
> 
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