>>>>> "RR" == Raymond Raymond <[EMAIL PROTECTED]> writes:
RR> Last time when I discussed the automatic checkpointing issue
RR> with you and Mike, I suggested that maybe we can establish a
RR> dirty page list in wich dirty pages are sorted in ascending
RR> order of the time when they were firt updated. I don't mean we
RR> need to copy the whole page to the list just some
RR> identification of the page that can make us find the
RR> corresponding page later.When pages are fist updated, it will
RR> be linked to the list and when it is flushed out to disk, it
RR> will be released from the link. In this way, the oldest dirty
RR> pages will be in the head and the lastest will be in the
RR> tail. When we do checkpointing, we scan form the head to the
RR> end of the list. I think that will guarantee the oldest dirty
RR> pages are written in a checkpoint.
Sounds like a good idea.
--
Øystein
