Use rb_io_wait function and cache io instance.
#779
| Job | Run time |
|---|---|
| 55s | |
| 1m 20s | |
| 2m 15s |
rb_io_wait function and cache io instance.
#779
| Job | Run time |
|---|---|
| 55s | |
| 1m 20s | |
| 2m 15s |