Redis lua scripts Update Set and Sorted Set only if the value / score is higher or lower …

redis.sh

# Basic benchmarks
# SET key val # 87489.06
# SETRANGE key2 6 "Redis" # 75757.58 req/s
# INCR  key 245 # 70224.72 req/s
# INCRBY key 245 22 # 67114.09 req/s
# EVAL SET key val # 46296.29 req/s

# SETIFHIGHER (set or update key if new value is higher than current) # 41666.67 req/s
# if not exists return OK , if updated return the increment  , if not updated return 0
SCRIPT LOAD "local c = tonumber(redis.call('get', KEYS[1])); if c then if tonumber(ARGV[1]) > c then redis.call('set', KEYS[1], ARGV[1]) return tonumber(ARGV[1]) - c else return 0 end else return redis.call('set', KEYS[1], ARGV[1]) end"
EVALSHA "2ab979bc4b89ab15c14805586c33d898f99a53d4" 1 key 245

# SETIFLOWER (set or update key if new value is lower than current) # 41054.12 req/s
# if not exists return OK , if updated return the decrement , if not updated return 0
SCRIPT LOAD "local c = tonumber(redis.call('get', KEYS[1])); if c then if tonumber(ARGV[1]) < c then redis.call('set', KEYS[1], ARGV[1]) return tonumber(ARGV[1]) - c else return 0 end else return redis.call('set', KEYS[1], ARGV[1]) end"
EVALSHA "3b99f44a33619dca62593053ce4bf52f7b432880" 1 key 3535


# ZADDIFHIGHER (set or update sorted set  if new value is higher than current) # 34952.81 req/s
# if not exists return "OK" , if updated return the increment, if not updated return 0
SCRIPT LOAD "local c = tonumber(redis.call('zscore', KEYS[1], ARGV[1])); if c then  if tonumber(KEYS[2]) > c then redis.call('zadd', KEYS[1], KEYS[2], ARGV[1]) return tonumber(KEYS[2]) - c else return 0 end else redis.call('zadd', KEYS[1], KEYS[2], ARGV[1]) return 'OK' end"
EVALSHA "8d1c75ea83b6f8f9ba5f7f048188da7ee6c4b35f" 2 set 10 member


# ZADDIFLOWER (set or update sorted set if new value is lower than current) # 34831.07 req/s
# if not exists return "OK" , if updated return the decrement, if not updated return 0
SCRIPT LOAD "local c = tonumber(redis.call('zscore', KEYS[1], ARGV[1])); if c then  if tonumber(KEYS[2]) < c then redis.call('zadd', KEYS[1], KEYS[2], ARGV[1]) return tonumber(KEYS[2]) - c else return 0 end else redis.call('zadd', KEYS[1], KEYS[2], ARGV[1]) return 'OK' end"
EVALSHA "1f8b6cf618d14c48e23b483fc42df71b6bea582e" 2 set 10 member