On 2019/06/06 09:25, Marc Roos wrote:
>
> Hmmm without being a maintainer. I would say cp -r is most used on
> single disk, so one thread is using the maximum disk iops taking y time
> to copy.
---
not exactly true, if the 1 disk as a 20 disk raid10.
You can target 10 areas at a time and g
There are always exceptions like with clustered filesystem etc etc. That
is why I wrote 'most used'. If you take all the issued 'cp' commands of
today in the world. I would bet 80%-95% of them would not benefit from
some sort of parallel processing.
-Original Message-
From: L A Walsh
On Fri, Jun 28, 2019 at 04:15:22AM -0700, L A Walsh wrote:
You can target 10 areas at a time and get considerable benefit
if they are spread across multiple disks in the raid.
Alternatively, the kernel can hide this behind readahead.
On 2019/06/28 04:52, Marc Roos wrote:
>
> There are always exceptions like with clustered filesystem etc etc. That
> is why I wrote 'most used'. If you take all the issued 'cp' commands of
> today in the world. I would bet 80%-95% of them would not benefit from
> some sort of parallel proce
