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Neal, is your app server a Windows server? or is it based on a different OS?
| | | ---------------Original Message---------------
From: R. N. Wilhite
Sent: Tuesday, November 29, 2011 3:26 PM
Subject: Speed of Download to Desktop VS App Server
Hi all,
I suppose that this is due to network latency, but I thought I'd ask anyway.
My code does exactly the same things until download time. Then it forks either taking the data off to the APP Server or to the desktop. I was pretty surprised when the speed ratio came out 100:1 in favor of the App server. Is that really a reasonable expectation? Here's the two code bits:
For the local download:
FORM file_ldownload.
DATA: l_file TYPE string.
* Download file to presentation.
MOVE: p_lfile TO l_file.
CALL METHOD cl_gui_frontend_services=>gui_download
EXPORTING
* bin_filesize = l_xml_size
filename = l_file
filetype = 'ASC'
trunc_trailing_blanks = ' '
CHANGING
data_tab = it_output
EXCEPTIONS
OTHERS = 24.
IF sy-subrc EQ 0.
WRITE: / 'Files written to the local drive:',
/ p_lfile.
SKIP 1.
ELSE.
MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
ENDIF.
ENDFORM. " FILE_LDOWNLOAD
For the App Server download:
FORM file_sdownload.
DATA: l_error TYPE string.
* file download.
OPEN DATASET p_sfile FOR APPENDING IN TEXT MODE
ENCODING DEFAULT WITH WINDOWS LINEFEED
MESSAGE l_error.
IF sy-subrc NE 0.
IF sy-subrc = 8.
MESSAGE l_error TYPE 'E'.
ELSE.
MESSAGE ID '/SAPDMC/LSMW' TYPE 'E' NUMBER '056'.
ENDIF.
ELSE.
LOOP AT it_output INTO wa_output.
TRANSFER wa_output TO p_sfile.
ENDLOOP.
CLOSE DATASET p_sfile.
IF sy-subrc IS INITIAL.
WRITE: / 'Files written to the server:',
/ p_sfile.
SKIP 1.
ENDIF.
ENDIF.
ENDFORM. " FILE_SDOWNLOAD
Any thoughts on this?
Neal |
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