ibatis-user-cs mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Prosper <mpro...@yahoo.com>
Subject Re: Perofrmance problem Ibatis 1.2/.NET 2.0/SQL SERVER 2000
Date Mon, 13 Nov 2006 10:25:26 GMT
Another precision about my perf problem with Ibatis1.2/ado2.0/sqlserver2000: I checked the
statement sent by Ibatis and Ado to the server, and I observed that where Ado sends varchar(x)
for a fixed field, Ibatis sends nvarchar(x);this is the only difference between the two statements;
and just replacing varchar(x) by nvarchar(x) enables to get good perf.
  How could I inform my resultmap about fixed string field?

Prosper <mprospa@yahoo.com> wrote:
    Hello evrybody;
  some more precision about my perf pb:
  I did some benchmarks in order to understand where does ibatis spend its time:
  Bench 1: a simple select, 10 loops, using in one case Ibatis 1.2/mssql2000, ansd in the
other case ADO/MSSQL2000; the MSSQL Profiler shows that Ibatis made more than 75000 reads
on the server for a duration more than 2000, while ADO made just 3 reads for a duration of
  Bench 2: same test, but with MSSQL2005: at this time the two did 3 reads on the server for
a duration of 0ms.
  Does anyone could know why Ibtais makes so much request to the server on the case of mssql2000?

Prosper <mprospa@yahoo.com> wrote:
    Hello every body,
  I deal with performance problem using batis with .NET2.0 over sql server 2000.
  - over sql server 2005, i have responses times of 2 ms; with the same configuration but
over sql server 2000, the response time jumps to 3000ms; and when using ADO.NET over sql server
2000, response time is less than 75ms.
  Does any one has encountered this performance issue of Ibatis with .NET 2.0 over sql server
  Everyone is raving about the all-new Yahoo! Mail.

  Everyone is raving about the all-new Yahoo! Mail beta.

Everyone is raving about the all-new Yahoo! Mail beta.
View raw message