Commit 401a3034 authored by Yongpeng Yang's avatar Yongpeng Yang Committed by Jaegeuk Kim
Browse files

f2fs: add write latency stats for NAT and SIT blocks in f2fs_write_checkpoint 



This patch adds separate write latency accounting for NAT and SIT blocks
in f2fs_write_checkpoint().

Signed-off-by: default avatarYongpeng Yang <yangyongpeng@xiaomi.com>
Reviewed-by: default avatarChao Yu <chao@kernel.org>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent be38b571

fs/f2fs/checkpoint.c

+3 −1
Original line number Diff line number Diff line
@@ -1839,6 +1839,7 @@ int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) 
			goto out;

		}

	}

	stat_cp_time(cpc, CP_TIME_MERGE_WRITE);



	/*

	 * update checkpoint pack index
@@ -1855,10 +1856,11 @@ int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) 
		f2fs_bug_on(sbi, !f2fs_cp_error(sbi));

		goto stop;

	}

	stat_cp_time(cpc, CP_TIME_FLUSH_NAT);



	f2fs_flush_sit_entries(sbi, cpc);



	stat_cp_time(cpc, CP_TIME_FLUSH_META);

	stat_cp_time(cpc, CP_TIME_FLUSH_SIT);



	/* save inmem log status */

	f2fs_save_inmem_curseg(sbi);

fs/f2fs/f2fs.h

+3 −1
Original line number Diff line number Diff line
@@ -319,7 +319,9 @@ enum cp_time { 
	CP_TIME_START,		/* begin */

	CP_TIME_LOCK,		/* after cp_global_sem */

	CP_TIME_OP_LOCK,	/* after block_operation */

	CP_TIME_FLUSH_META,	/* after flush sit/nat */

	CP_TIME_MERGE_WRITE,	/* after flush DATA/NODE/META */

	CP_TIME_FLUSH_NAT,	/* after flush nat */

	CP_TIME_FLUSH_SIT,	/* after flush sit */

	CP_TIME_SYNC_META,	/* after sync_meta_pages */

	CP_TIME_SYNC_CP_META,	/* after sync cp meta pages */

	CP_TIME_WAIT_DIRTY_META,/* after wait on dirty meta */