Re: [f2fs-dev] [PATCH] f2fs: optimize gc for better performance

Hi Jin, > [...] > > > > It seems that we can obtain the performance gain just by setting the > > MAX_VICTIM_SEARCH to 4096, for example. > > So, how about just adding an ending criteria like below? > > > > I agree that we could get the performance improvement by simply > enlarging the MAX_VICTIM_

[f2fs-dev] [PATCH 1/2] f2fs: trigger GC when there are prefree segments

Previously, f2fs conducts SSR when free_sections() < overprovision_sections. But, even though there are a lot of prefree segments, it can consider SSR only. So, let's consider the number of prefree segments too for triggering SSR. Signed-off-by: Jaegeuk Kim --- fs/f2fs/segment.h | 3 ++- 1 file

[f2fs-dev] [PATCH 2/2] f2fs: avoid an overflow during utilization calculation

The current f2fs uses all the block counts with 32 bit numbers, which is able to cover about 15TB volume. But in calculation of utilization, f2fs multiplies the count by 100 which can induce overflow. This patch fixes this. Signed-off-by: Jaegeuk Kim --- fs/f2fs/segment.h | 2 +- 1 file changed