Instant Netty Startup using GraalVM Native Image Generation

Post by kjeetgill » Wed, May 23, 2018, 4:12 AM UTC

shelajev wrote: post #6

openasocket wrote: post #4

(Slightly off-topic) My understanding was that HotSpot and other JITs are able to to profile-guided optimizations and the like (such as a polymorphic inline cache) to produce the best possible assembly. How does the assembly produced by these AOT compilers compare? Fast startup time and reduced memory footprint is great, but how will performance compare on compute-intensive workloads?

you can use profile guided optimisations when building a native image with GraalVM. You'll need to run your code in a special way under the desired load to gather the profile information, then it can be used when building the native image. YMMV, but the results can be quite interesting, here for example someone compiled http4s: https://twitter.com/lukasz_bialy/status/989091065033625606

Interesting. It seems it's a feature unique to the the GraalVM Enterprise Edition. Is there any official policy or statement on what makes it into CE vs EE? I think a there are a lot of questions around that that always crop up. PGO being unique to EE would feel more reasonable than say partial escape analysis. (Though I fully acknowledge Oracle's right to do so with work they fund.)

If the open source project (CE) is under GPL, doesn't that restrict contributions from making it upstream to EE?

Post by jillesvangurp » Wed, May 23, 2018, 4:41 AM UTC

kjeetgill wrote: post #11

shelajev wrote: post #6

Earlier quoted context omitted.

you can use profile guided optimisations when building a native image with GraalVM. You'll need to run your code in a special way under the desired load to gather the profile information, then it can be used when building the native image. YMMV, but the results can be quite interesting, here for example someone compiled http4s: https://twitter.com/lukasz_bialy/status/989091065033625606

Interesting. It seems it's a feature unique to the the GraalVM Enterprise Edition. Is there any official policy or statement on what makes it into CE vs EE? I think a there are a lot of questions around that that always crop up. PGO being unique to EE would feel more reasonable than say partial escape analysis. (Though I fully acknowledge Oracle's right to do so with work they fund.) If the open source project (CE) i…

Companies like oracle typically require copyright transfer for contributions. This allows them to use differently for their enterprise version since they are the only copyright holder.

Re: Instant Netty Startup using GraalVM Native Image Generation

Re: Instant Netty Startup using GraalVM Native Image Generation