related_post_gen benchmark

[inv2004]

Anyway, smth does not match:
    
    
    let tt {.cursor.} = tagMap[tag]
        for otherIDX in tt:
    
    
    Run

cursor for extra-sure => 24ms
    
    
        for otherIDX in tagMap.getPtr(tag)[]:
    
    
    Run

=> 19ms

pretty huge diff