TTL and stale reads
Level 9 of 41Tune the parts. Turn every goal green.
- Traffic
- 5,000 req/s · reads only
- Limit
- Postgres answers about 7,500 reads/s
- Bill
- Redis cache4 USD/mo
- Postgres4 USD/mo
8 of 30 USD/mo
Goals
Not tested yet
Each second, 4,995 reads and 5 writes reach 1,000 keys. Tune the TTL. Fewer than 1 percent of the 299,700 reads may be stale. More than 80 percent must hit the cache.