On Fri, 14 Feb 2025 09:19:35 GMT, Per Minborg <pminb...@openjdk.org> wrote:

> This PR proposes to add `@ForceInline` to the `default` methods in 
> `SegmentAllocator` that do not already have it.

There is [a microbenchmark from another 
PR](test/micro/org/openjdk/bench/java/lang/foreign/ArenaPoolFromBench.java) 
which is hard to isolate as it depends on changes in the JDK. The changes in 
this (and not the other) PR has the following implications in said benchmark:

Baseline:

Benchmark                                                                   
Mode  Cnt     Score      Error   Units
ArenaPoolFromBench.OfVirtual.pooledInt                                 N/A  
avgt   30    29.465 ?    0.922   ns/op
ArenaPoolFromBench.OfVirtual.pooledInt:gc.alloc.rate                   N/A  
avgt   30  6482.707 ?  176.227  MB/sec
ArenaPoolFromBench.OfVirtual.pooledInt:gc.alloc.rate.norm              N/A  
avgt   30   200.001 ?    0.001    B/op
ArenaPoolFromBench.OfVirtual.pooledInt:gc.count                        N/A  
avgt   30   182.000             counts
ArenaPoolFromBench.OfVirtual.pooledInt:gc.time                         N/A  
avgt   30   110.000                 ms


Patch:

Benchmark                                                      Mode  Cnt   
Score    Error   Units
ArenaPoolFromBench.OfVirtual.pooledInt                         avgt   30   
8.351 ?  0.297   ns/op
ArenaPoolFromBench.OfVirtual.pooledInt:gc.alloc.rate           avgt   30   
0.013 ?  0.001  MB/sec
ArenaPoolFromBench.OfVirtual.pooledInt:gc.alloc.rate.norm      avgt   30  ? 
10??             B/op
ArenaPoolFromBench.OfVirtual.pooledInt:gc.count                avgt   30     ? 
0           counts

-------------

PR Comment: https://git.openjdk.org/jdk/pull/23628#issuecomment-2665418353

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