HMG vs. Clipper 5.2 speed

[mol]

I finished porting my old application written in clipper 5.2

I'm amazing about speed of HMG. It's especially evident when I run it from pendrive.

I am impressed!

[Rathinagiri]

Thanks for sharing the experience. I am also glad.

[sudip]

Hello Marek,

Thanks a lot for this very interesting topic

Yes, HMG is many times faster. I didn't "convert" any old Clipper app to HMG. But, I converted many old Clipper apps to xHarbour+gtwvw and Harbour+gtwvg. I found amazing improvement of speed in both cases , especially with Harbour it's excellent.

I made some add-on projects for my old Clipper and VFP ( ) apps. In both cases I found improvement of speed. I was really surprised when found my HMG add on is faster than VFP!!!

With best regards.

Sudip

[Vanguarda]

Hi friends,

Thanks Mol for sharing this experience with us. It is very interresant

My best regards,

[Roberto Lopez]

<...>
HMG add on is faster than VFP!!!

That is not rare... the last years, VFP become a little fat and slow

[nguyenchiduc]

Hello Marek,

Thanks a lot for this very interesting topic

Yes, HMG is many times faster. I didn't "convert" any old Clipper app to HMG. But, I converted many old Clipper apps to xHarbour+gtwvw and Harbour+gtwvg. I found amazing improvement of speed in both cases , especially with Harbour it's excellent.

I made some add-on projects for my old Clipper and VFP ( ) apps. In both cases I found improvement of speed. I was really surprised when found my HMG add on is faster than VFP!!!

With best regards.

Sudip

I test with a file. Dbf to over 2.200.000 records and about 990M of size.

LOCATE command of HMG and FVP are equivalent. HMG slightly faster

VFP very slow compared to HMG in example

Code: Select all

use data alias data  shared new readonly via "DBFCDX"

DO WHILE .NOT. EOF()

    IF data->user == "ABC"
         /* commands */
         exit
    ELSE
       skip
    ENDIF
ENDDO

EDIT or EDIT EXTEND command in HMG very bad compared to the BROWSE in VFP with large files

====================================

During calculation, the intermediate results show up window can display the error. Although the program still run. This affects only the display but not the program crashes

[sudip]

Hi All,

Very recently I was creating some reports with DBF (you may call it as "add on" project) for my old VFP app (writtein with VfP6, which has problems with Win7).

I couldn't check the exact time. But, as per my observation.
1. VFP's (VFP 6) embedded SQL is very fast.
2. HMG app is more flexible and robust.
3. Exporting data to Excel (OLE) is faster with HMG

I was also testing very small project with VB.Net 2010 Express Edition with a small table. User interface is outstanding, but it's very slow.