From a7fdffbd3ea4b3cc2993af006bde38a423b38b72 Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim Date: Fri, 18 Jan 2013 14:54:13 +0900 Subject: [PATCH] f2fs: avoid issuing small bios due to several dirty node pages If some small bios of dirty node pages are supposed to be issued during the sequential data writes, there-in well-produced consecutive data bios are able to be split by the small node bios, resulting in performance degradation. So, let's collect a number of dirty node pages until reaching a threshold. And, by default, I set the threshold as 2MB, a segment size. This improves sequential write performance on i5, 512GB SSD (830 w/ SATA2) as follows. Before: 231 MB/s -> After: 255 MB/s Signed-off-by: Jaegeuk Kim Reviewed-by: Namjae Jeon --- Reading git-format-patch failed