Use mexpire for multi refresh performance
Use mexpire for multi refresh performance

Using a `multi` block:

Calculating -------------------------------------
 read_multi:standard   397.000  i/100ms
  read_multi:refresh   132.000  i/100ms
-------------------------------------------------
 read_multi:standard      4.295k (± 4.4%) i/s -     21.438k
  read_multi:refresh      1.369k (± 5.2%) i/s -      6.864k

Comparison:
 read_multi:standard:     4294.7 i/s
  read_multi:refresh:     1368.8 i/s - 3.14x slower

Using a lua script:

Calculating -------------------------------------
 read_multi:standard   413.000  i/100ms
  read_multi:refresh   278.000  i/100ms
-------------------------------------------------
 read_multi:standard      4.267k (± 3.3%) i/s -     21.476k
  read_multi:refresh      2.880k (± 3.0%) i/s -     14.456k

Comparison:
 read_multi:standard:     4267.2 i/s
  read_multi:refresh:     2880.0 i/s - 1.48x slower

sorentwo/readthis