List:MySQL on Win32« Previous MessageNext Message »
From:John McQuillen Date:July 23 2004 5:18am
Subject:Re: Left Join slow on Windows
View as plain text  
All of the max_* variables agree between the servers, however, the
windows server does not have "max_seeks_for_key".

There are two variables that appear relevant and do disagree
significantly however.

myisam_max_sort_file_size=256 on windows
myisam_max_sort_file_size=268435456 on linux

myisam_max_extra_sort_file_size=2047 on windows
myisam_max_sort_file_size=2147483647 on linux

If I add the new values into my.ini the old variable values seem to
remain. My.ini looks like this:

[WinMySQLAdmin]
Server=C:/mysql/bin/mysqld-nt.exe
QueryInterval=10

[mysqld-nt]
set-variable    = myisam_max_sort_file_size=2147483647
set-variable    = myisam_max_extra_sort_file_size=268435456

The new values don't seem to be accepted. Am I doing something wrong?

Regards,

John...


On Fri, 2004-07-23 at 10:52, Petr Vileta wrote:
> > I am experiencing problems with a query which is slow (16sec) on Windows
> > but not on Linux (2sec).
> >
> > Can anyone suggest why the query would be so slow on Windows, and
> > perhaps recommend a solution? I am having problems with PHP timing out
> > before it can display the results of this particular query.
> Because Bill Gates :-)
> Have you the same MySQL configuration on both PCs?
> Compare  SHOW VARIABLES on both ant take look to every what begin "max_" ;-)
> 
> Petr Vileta, Czech republic
> 

Thread
Left Join slow on WindowsJohn McQuillen23 Jul
  • Re: Left Join slow on WindowsPetr Vileta23 Jul
    • Re: Left Join slow on WindowsJohn McQuillen23 Jul
      • Re: Left Join slow on WindowsSGreen23 Jul
  • how to find duplicated entries within a table?Gerhard Brauckmann5 Aug
AW: how to find duplicated entries within a table?Gerhard Brauckmann5 Aug
RE: how to find duplicated entries within a table?Cesar Vega5 Aug