"ITAGAKI Takahiro" <[EMAIL PROTECTED]> wrote > > > I'm interested in it, with which we could improve responsiveness during > checkpoints. Though it is Linux specific system call, but we could use > the combination of mmap() and msync() instead of it; I mean we can use > mmap only to flush dirty pages, not to read or write pages. >
Can you specify details? As the TODO item inidcates, if we mmap data file, a serious problem is that we don't know when the data pages hit the disks -- so that we may voilate the WAL rule. Regards, Qingqing ---------------------------(end of broadcast)--------------------------- TIP 5: don't forget to increase your free space map settings
