I wanted to update this thread with a bit of news. We have had the
enjoyable experience of working with Lionel and Henri (please check out:
http://zigi.rocks) on requirements for some new shell commands for the Co:Z
Toolkit V6.2.0, which we released this week.
The new commands (getpds and putpds) use BPAM+BSAM along with our existing
Co:Z record <-> stream processing framework to allow you to copy PDS
members to and from z/OS UNIX files. Also included are extensive options
for ISPF stats processing.
The performance (when compared to "/bin/cp") is better than we could have
expected. The following example copies all of the members of SYS1.MACLIB
to text files in the current directory:
$ getpds //sys1.maclib .
getpds(SYS1.MACLIB)[N]: 2015 members/2435218 records/194817440 bytes read;
194011101 bytes written in 1.791 seconds (103.307
MBytes/sec).
For more information:
https://dovetail.com/docs/zos-utilities/dsp-ref_getpds.html
https://dovetail.com/docs/zos-utilities/dsp-ref_putpds.html
https://dovetail.com/docs/cozinstall/changes.html
Co:Z is available free under our Community License
<https://dovetail.com/docs/cozinstall/licenses.html>.
Kirk Wolf
http://dovetail.com
On Mon, Jun 22, 2020 at 9:30 AM Paul Gilmartin <
[email protected]> wrote:
> On Wed, 17 Jun 2020 07:14:39 -0500, Lionel B Dyck wrote:
>
> >Kirk - thank you for the ideas.
> >
> >What I'm doing is in the ZIGI (see https://zigi.rocks) where I need to
> copy PDS members to/from USS so that Git can manage them. With small
> projects this isn't an issue but with larger projects it could take enough
> time for you to go to lunch ☹
> >
> >Btw. I voted your RFE.
> >
> I notice that replies this thread have focused on Classic PDS as the
> performance culprit. Has someone tried the benchmarks:
>
> cp UNIX -> UNIX vs. cp PDS -> PDS
>
> ... and compared performance? I suspect Classic OS was optimized
> for a few large data sets; UNIX for many small files.
>
> Might there be an argument here for maintaining the data where it
> works best and omitting the copying?
>
> >-----Original Message-----
> >From: Kirk Wolf
> >Sent: Wednesday, June 17, 2020 7:03 AM
> >
> >FWIW: It's a pity that the IBM C library doesn't have any support for
> BLDL/NOTE/POINT processing of PDS/Es -- see my old RFE and vote if you
> >agree:
> >
> https://www.ibm.com/developerworks/rfe/execute?use_case=viewRfe&CR_ID=80811
>
> -- gil
>
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