Initialization time changed with new version?

[saqibsaleem]

Hello,
This question is regarding the initialization time of the cluster (startup time).

The version we used before was 4.1.7 and the startup time of the cluster was 5-6 minutes. Now, we are using version 4.1.9 and the startup time is 23 minutes with the same database.

Before the problem was local checkpoint that was taking all the resources while initializing and also in the middle when the cluster was up. This was the problem because while running local checkpoint in the middle, it was decreasing the response time significantly. But now, the local checkpoint is not taking much resource and in the middle when the server is up, the response time is quite reasonable. What I need to ask is, is it really true that this configuration has been changed in the newer versions of MySQL.

Secondly, can't I just configure the config.ini to use all the system resources just on initialization (startup) but not while running checkpoint in the middle when the server is already up.

Regards
Saqib

We are using the following hardware:
Sun Fire 2.4G Dual, 12GB RAM
SAN (Storage Area Network) connected with Fiber channel configured with Raid Type 10