bb.donnay-software.com

Posted: **Sun Aug 14, 2016 10:24 am**

Recently, an eXpress++ customer (Dian Ray) reported that their application is running much slower under Windows 10 even though it has a faster processor.

In particular, it was in a routine where a large treeview menu was being created.
I think that I have determined that the slowdown is due to the increased time Windows 10 takes to open files, in this case .ICO files.

To prove my theory, I wrote the below program.
If I comment out the WTL command, the program runs a bit faster on the Windows 10 computer due to its faster processor. The WTL command writes debugging info to a file named DEBUG.LOG. It must open and close the file 10000 times.

If I leave the WTL command in the program, it takes 9.98 seconds on my Windows 7 computer and 93.34 seconds on my Windows 10 computer. This is what Dian has reported - about 10x longer.

I suspect that there are issues with Windows 10 file caching.

Does anyone have any information about this?

Code: Select all

#INCLUDE "dcdialog.CH"

FUNCTION Main()

LOCAL i, nSeconds := Seconds(), aSeconds := Array(10000)

FOR i := 1 TO Len(aSeconds)
  aSeconds[i] := Seconds()
  WTL aSeconds[i]
NEXT

? Seconds() - nSeconds
wait

RETURN nil

Posted: **Mon Aug 15, 2016 12:06 pm**

I have seen similar slowdowns since later revisions to Windows 7. This was first noticed with dbCommit() commands.

I had this structure in many places in my program:

Code: Select all

DO WHILE !eof()
  IF chkbook->JUDGE == mcJudge
    rec_lock(0)
    REPLACE chkbook->DEPOSIT WITH mlSepBail
    unlock All
    DBCommit()
  ENDIF
  SKIP
ENDDO

Moving the DBCommit() command outside the loop made a huge difference in program speed.

Code: Select all

DO WHILE !eof()
  IF chkbook->JUDGE == mcJudge
    rec_lock(0)
    REPLACE chkbook->DEPOSIT WITH mlSepBail
    unlock All
  ENDIF
  SKIP
ENDDO
DBCommit()

I have also removed all code that wrote incremental text to .LOG files, I now build one large text file and only write at the end of a routine or when the text exceeds a specified size limit.

Terry

Posted: **Mon Aug 15, 2016 12:39 pm**

32bit or 64bit Windows 10.14393 ?

in Alaska Newsgroup

public.xbase++.support.en
2. August 2016
Please assist: Benchmark Xbase++ on Windows - Test_Gui.zip

is about Performance to display XbParts

since Win7 we got WinSat -> Windows Index which is still available in Win 8/10.
i wrote this Demo to "read" those Value with WMI.

Code: Select all

   colItems       := objWMIServices:ExecQuery("select * from Win32_WinSAT",,48)
   bCollBlock     := {|oService,n| AADD(aItem,{ n,;
     oService:getProperty("CPUScore"),;
     oService:getProperty("MemoryScore"),;
     oService:getProperty("GraphicsScore"),;
     oService:getProperty("D3DScore"),;
     oService:getProperty("DiskScore"),;
     oService:getProperty("WinSPRLevel") })}

   ComEvalCollection(colItems, bCollBlock )

RETURN aItem

XBWINSAT.ZIP: v1.9.355; (22.53 KiB) Downloaded 1099 times

my PC have multi-boot OS() so same Hardware different SSD
32bit

: WinSat_Win10_32bit.jpg (54.91 KiB) Viewed 15819 times

64bit

: WinSat_Win10_64bit.jpg (50.8 KiB) Viewed 15819 times

as you can see 64bit Grafic is much slower than 32bit

Posted: **Mon Aug 15, 2016 12:44 pm**

64bit Win 8.1

: WinSat_Win81_64bit.jpg (56.23 KiB) Viewed 15819 times

32bit Win 7 with HDD

: WinSat_Win7_32bit.jpg (52.94 KiB) Viewed 15819 times

! Note : 32bit use 3 GB only
p.s. what does MEMORY( MEM_RAM_TOTAL ) say with Xbase++ v2.x ?

bb.donnay-software.com

Windows 10 Performance issues

Windows 10 Performance issues

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Re: Windows 10 Performance issues

Re: Windows 10 Performance issues