Feature request: parallel copying of files

[Percona]

I would to have possibility to copy files to backup ( and restore) in N threads

[Yasufumi Kinoshita (yasufumi-kinoshita)]

How effective the parallel copy is?
I think it may be slower than 1 thread copy in normal cases. (using HDD or RAID of direct connection).

[Peter Zaitsev (pz-percona)]

Yasufumi,

We can check it... Though with large enough buffer you should be
right, unless device is so fast reads run out of CPU

Though compressing and streaming to network often can improve from
concurrency.

Sunday, March 15, 2009, 5:28:43 PM, you wrote:

> How effective the parallel copy is?
> I think it may be slower than 1 thread copy in normal cases. (using
> HDD or RAID of direct connection).

--
Peter Zaitsev, CEO, Percona Inc.
Tel: [phone] ext 501 Skype: peter_zaitsev
24/7 Emergency Line [phone] ext 911
Attend the 2009 Percona Performance Conf
Apr 22-23 http://conferences.percona.com/

[Yasufumi Kinoshita (yasufumi-kinoshita)]

Hmm,,, So it is for "--compress" mode?
If so, it will be after the implementation of "--compress" mode.

[Evgeniy Stepchenko (evgeny-stepchenko)]

moved to BP - https://blueprints.launchpad.net/percona-xtrabackup/+spec/copy-concurrency

[Shahriyar Rzayev (rzayev-sehriyar)]

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PXB-1042