Re: SixPacks mods for GCIC users

On Thu, Nov 4, 2010 at 7:25 AM, paoloG <[email protected]> wrote:
> Hello!
>
> Often I find fun in installing and testing Hercules on small
> appliances, tiny computers, NAS and so on.
>
> Recently I bought a D-LINK DNS-323 for a bargain price (about
> 75 Euros without HD) and I installed Hercules on it.
>
> Based on a 500 Mhz ARM processor it has a perfomance of 1-1.5 MIPS (more or less the same as a 4341-2 of 1980); this is acceptable to me as I like to have some wait time after issuing a command (it remembers me of good old times;-).
>
> So I decided to test GCIC in this environment, and I
> was surprised by the time required to start BROWSE or
> EDIT function; for example starting BROWSE of GEDIT ASSEMBLE
> file (3742 lines) required about 65 seconds; the same for
> starting EDIT.
>
> Even exiting from BROWSE OR EDIT required about 12 sec.
>
> The same functions in a VM/SP environment(using BROWSE and XEDIT)
> give a 0.1-0.4 seconds response time.
>
> I noticed that starting BROWSE in GCIC has a path lentgh of about
> 60M instructions, while the BROWSE of VM/SP has a 100k instructions
> path length.
>
> Surprised by such a behaviour I looked into the code of GCIC,
> and discoveved that the file to be BROWSED or EDITED
> is read into memory by the same routine in GTABLE ASSEMBLE module;
> for each line read is issued a GETMAIN to get an area of
> 8 + LRECL length.
>
> I suspected that the  poor performances were related to all
> these GETMAINs, so I tried a quick and dirty correction:
> I acquired an unique area of 500k at the beginning of the routine
> and modified the code to cope with this unique area.
>
> I got a response time of 3 sec (instead of 65) and exiting
> from BROWSE or EDIT is almost immediate.
>
> Hoping this may be useful to the developer to improve an already
> fantastic program!
>
> Regards.
>
> Paul
> ------------------------------------

Hello!
Yes this is useful. Very useful in fact. It means we have moved
forward in what we can use Hercules on. Now I'm not a fan of D-Link,
but in this case the fact that you've got it running on that family of
NAS devices suggests that anyone can do that.

-----
Gregg C Levine [email protected]
"This signature fought the Time Wars, time and again."