v2.0: program-runtime: double program cache size (backport of #3481) #3494
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The cache is currently getting thrashed and programs are getting reloaded pretty much at every single slot. Double the cache size, which makes reloading happen only due to random eviction sometimes picking a popular entry.
The JIT code size with the new cache size is about 800MB.
This change reduces JIT time 15x.
Left is with PR, right is master.
This is an automatic backport of pull request #3481 done by [Mergify](https://mergify.com).