Re: copy_file_range and user space tools to do copy fastest

2018-04-28 Thread Goldwyn Rodrigues
On 04/28/2018 12:26 AM, Steve French wrote: > On Sat, Apr 28, 2018 at 12:18 AM, Andreas Dilger wrote: >> On Apr 27, 2018, at 5:41 PM, Eric Biggers wrote: >>> >>> On Fri, Apr 27, 2018 at 01:45:40PM -0600, Andreas Dilger wrote: On Apr 27, 2018, at

Re: copy_file_range and user space tools to do copy fastest

2018-04-28 Thread Goldwyn Rodrigues
On 04/28/2018 12:26 AM, Steve French wrote: > On Sat, Apr 28, 2018 at 12:18 AM, Andreas Dilger wrote: >> On Apr 27, 2018, at 5:41 PM, Eric Biggers wrote: >>> >>> On Fri, Apr 27, 2018 at 01:45:40PM -0600, Andreas Dilger wrote: On Apr 27, 2018, at 12:25 PM, Steve French wrote: > >

Re: copy_file_range and user space tools to do copy fastest

2018-04-27 Thread Steve French
On Sat, Apr 28, 2018 at 12:18 AM, Andreas Dilger wrote: > On Apr 27, 2018, at 5:41 PM, Eric Biggers wrote: >> >> On Fri, Apr 27, 2018 at 01:45:40PM -0600, Andreas Dilger wrote: >>> On Apr 27, 2018, at 12:25 PM, Steve French wrote:

Re: copy_file_range and user space tools to do copy fastest

2018-04-27 Thread Steve French
On Sat, Apr 28, 2018 at 12:18 AM, Andreas Dilger wrote: > On Apr 27, 2018, at 5:41 PM, Eric Biggers wrote: >> >> On Fri, Apr 27, 2018 at 01:45:40PM -0600, Andreas Dilger wrote: >>> On Apr 27, 2018, at 12:25 PM, Steve French wrote: Are there any user space tools (other than our test

Re: copy_file_range and user space tools to do copy fastest

2018-04-27 Thread Andreas Dilger
On Apr 27, 2018, at 5:41 PM, Eric Biggers wrote: > > On Fri, Apr 27, 2018 at 01:45:40PM -0600, Andreas Dilger wrote: >> On Apr 27, 2018, at 12:25 PM, Steve French wrote: >>> >>> Are there any user space tools (other than our test tools and xfs_io >>>

Re: copy_file_range and user space tools to do copy fastest

2018-04-27 Thread Andreas Dilger
On Apr 27, 2018, at 5:41 PM, Eric Biggers wrote: > > On Fri, Apr 27, 2018 at 01:45:40PM -0600, Andreas Dilger wrote: >> On Apr 27, 2018, at 12:25 PM, Steve French wrote: >>> >>> Are there any user space tools (other than our test tools and xfs_io >>> etc.) that support copy_file_range? Looks

Re: copy_file_range and user space tools to do copy fastest

2018-04-27 Thread Eric Biggers
On Fri, Apr 27, 2018 at 01:45:40PM -0600, Andreas Dilger wrote: > On Apr 27, 2018, at 12:25 PM, Steve French wrote: > > > > Are there any user space tools (other than our test tools and xfs_io > > etc.) that support copy_file_range? Looks like at least cp and rsync > > and

Re: copy_file_range and user space tools to do copy fastest

2018-04-27 Thread Eric Biggers
On Fri, Apr 27, 2018 at 01:45:40PM -0600, Andreas Dilger wrote: > On Apr 27, 2018, at 12:25 PM, Steve French wrote: > > > > Are there any user space tools (other than our test tools and xfs_io > > etc.) that support copy_file_range? Looks like at least cp and rsync > > and dd don't. That

Re: copy_file_range and user space tools to do copy fastest

2018-04-27 Thread Andreas Dilger
On Apr 27, 2018, at 12:25 PM, Steve French wrote: > > Are there any user space tools (other than our test tools and xfs_io > etc.) that support copy_file_range? Looks like at least cp and rsync > and dd don't. That syscall which now has been around a couple years, > and was

Re: copy_file_range and user space tools to do copy fastest

2018-04-27 Thread Andreas Dilger
On Apr 27, 2018, at 12:25 PM, Steve French wrote: > > Are there any user space tools (other than our test tools and xfs_io > etc.) that support copy_file_range? Looks like at least cp and rsync > and dd don't. That syscall which now has been around a couple years, > and was reminded about at

copy_file_range and user space tools to do copy fastest

2018-04-27 Thread Steve French
Are there any user space tools (other than our test tools and xfs_io etc.) that support copy_file_range? Looks like at least cp and rsync and dd don't. That syscall which now has been around a couple years, and was reminded about at the LSF/MM summit a few days ago, presumably is the 'best' way

copy_file_range and user space tools to do copy fastest

2018-04-27 Thread Steve French
Are there any user space tools (other than our test tools and xfs_io etc.) that support copy_file_range? Looks like at least cp and rsync and dd don't. That syscall which now has been around a couple years, and was reminded about at the LSF/MM summit a few days ago, presumably is the 'best' way