• Chao Yu's avatar
    f2fs: adjust showing of extent cache stat · 029e13cc
    Chao Yu authored
    This patch alters to replace total hit stat with rbtree hit stat,
    and then adjust showing of extent cache stat:
    
    Hit Count:
    L1-1: for largest node hit count;
    L1-2: for last cached node hit count;
    L2: for extent node hit after lookuping in rbtree.
    
    Hit Ratio:
    ratio (hit count / total lookup count)
    
    Inner Struct Count:
    tree count, node count.
    
    Before:
    Extent Hit Ratio: 0 / 2
    
    Extent Tree Count: 3
    
    Extent Node Count: 2
    
    Patched:
    Exten Cacache:
      - Hit Count: L1-1:4871 L1-2:2074 L2:208
      - Hit Ratio: 1% (7153 / 550751)
      - Inner Struct Count: tree: 26560, node: 11824
    Signed-off-by: default avatarChao Yu <chao2.yu@samsung.com>
    Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
    029e13cc
debug.c 13.8 KB