[RFC PATCH 1/2] f2fs: enhance multithread dio write performance

2015-12-28 Thread Chao Yu
When performing big dio writes concurrently, our performace will be low because of Thread A's allocation of multi continuous blocks will be interrupted by Thread B, there are two cases as below: - In Thread B, we may change current segment to a new segment for LFS allocation if we dio write in

[RFC PATCH 1/2] f2fs: enhance multithread dio write performance

2015-12-28 Thread Chao Yu
When performing big dio writes concurrently, our performace will be low because of Thread A's allocation of multi continuous blocks will be interrupted by Thread B, there are two cases as below: - In Thread B, we may change current segment to a new segment for LFS allocation if we dio write in