Andreas Kling 4e004a664f JsonParser: Cache the last seen string starting with each possible char ...

Keep a 256-entry string cache during parse to avoid creating some new
strings when possible. This cache is far from perfect but very cheap.
Since none of the strings are transient, this only costs us a couple of
pointers and a bit of ref-count manipulation.

The cache hit rate on 4chan_catalog.json is ~33% and the speedup on
the load_4chan_catalog benchmark is ~7%.

2019-08-04 18:41:24 +02:00

5.1 KiB

Raw Blame History

View Raw