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Add missing release notes for 1.8.12, 1.8.13, 1.8.14
I found those in HTML only on the Eclipse web server, but not in the Git repository. So, I manually converted them to ADOC. Also mention release 1.9.21.1 in link description to README-1.9.21.adoc. Signed-off-by: Alexander Kriegisch <[email protected]>
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| Original file line number | Diff line number | Diff line change |
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| = AspectJ 1.8.12 | ||
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| _© Copyright 2017 Contributors. All rights reserved._ | ||
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| _Release info: 1.8.12 available 20-Oct-2017_ | ||
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| This is a small release that includes a backport of some 1.9.0 work that improves the performance of Spring AOP (or any | ||
| system consuming AspectJ in a similar way to Spring). | ||
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| Dave Syer recently created a series of benchmarks for checking the speed of Spring-AspectJ: | ||
| https://github.com/dsyer/spring-boot-aspectj | ||
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| Here we can see the numbers for AspectJ 1.8.11 (on an older Macbook Pro): | ||
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| [source, text] | ||
| .... | ||
| Benchmark (scale) Mode Cnt Score Error Units | ||
| StartupBenchmark.ltw N/A avgt 10 2.656 ~ 0.166 s/op | ||
| StartupBenchmark.ltw_100 N/A avgt 10 2.618 ~ 0.063 s/op | ||
| StartupBenchmark.spring v0_10 avgt 10 2.071 ~ 0.044 s/op | ||
| StartupBenchmark.spring v1_10 avgt 10 2.210 ~ 0.058 s/op | ||
| StartupBenchmark.spring v1_100 avgt 10 2.260 ~ 0.068 s/op | ||
| StartupBenchmark.spring v10_50 avgt 10 2.933 ~ 0.039 s/op | ||
| StartupBenchmark.spring v20_50 avgt 10 3.832 ~ 0.094 s/op | ||
| StartupBenchmark.spring v20_100 avgt 10 3.959 ~ 0.047 s/op | ||
| StartupBenchmark.spring a0_10 avgt 10 2.073 ~ 0.028 s/op | ||
| StartupBenchmark.spring a1_10 avgt 10 2.729 ~ 0.061 s/op | ||
| StartupBenchmark.spring a1_100 avgt 10 2.750 ~ 0.029 s/op | ||
| StartupBenchmark.spring a10_50 avgt 10 7.153 ~ 0.075 s/op | ||
| StartupBenchmark.spring a10_100 avgt 10 7.152 ~ 0.059 s/op | ||
| StartupBenchmark.spring a20_50 avgt 10 11.430 ~ 0.105 s/op | ||
| StartupBenchmark.spring a20_100 avgt 10 11.497 ~ 0.162 s/op | ||
| .... | ||
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| So this is the average **startup time** of an app affected by aspects applying to the beans involved. Where numbers are | ||
| referenced the first is the number of aspects/pointcuts and the second is the number of beans. The 'a' indicates an | ||
| annotation based pointcut vs a non-annotation based pointcut ('v'). Notice things are much worse for annotation based | ||
| pointcuts. At 20 pointcuts and 50 beans the app is 9 seconds slower to startup. | ||
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| In AspectJ 1.8.12 and 1.9.0.RC1 some work has been done here. The key change is to recognize that the use of annotations | ||
| with runtime retention is much more likely than annotations with class level retention. Retrieving annotations with | ||
| class retention is costly because we must open the bytes for the class file and dig around in there (vs runtime | ||
| retention which are immediately accessible by reflection on the types). In 1.8.11 the actual type of the annotation | ||
| involved in the matching is ignored and the code will fetch *all* the annotations on the type/method/field being matched | ||
| against. So even if the match is looking for a runtime retention annotation, we were doing the costly thing of fetching | ||
| any class retention annotations. In 1.8.12/1.9.0.RC1 we take the type of the match annotation into account - allowing us | ||
| to skip opening the classfiles in many cases. There is also some deeper work on activating caches that were not | ||
| previously being used correctly but the primary change is factoring in the annotation type. | ||
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| What difference does that make? AspectJ 1.8.12: | ||
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| [source, text] | ||
| .... | ||
| Benchmark (scale) Mode Cnt Score Error Units | ||
| StartupBenchmark.ltw N/A avgt 10 2.620 ~ 0.130 s/op | ||
| StartupBenchmark.ltw_100 N/A avgt 10 2.567 ~ 0.038 s/op | ||
| StartupBenchmark.spring v0_10 avgt 10 2.044 ~ 0.027 s/op | ||
| StartupBenchmark.spring v1_10 avgt 10 2.195 ~ 0.026 s/op | ||
| StartupBenchmark.spring v1_100 avgt 10 2.237 ~ 0.039 s/op | ||
| StartupBenchmark.spring v10_50 avgt 10 2.774 ~ 0.038 s/op | ||
| StartupBenchmark.spring v20_50 avgt 10 3.488 ~ 0.116 s/op | ||
| StartupBenchmark.spring v20_100 avgt 10 3.642 ~ 0.080 s/op | ||
| StartupBenchmark.spring a0_10 avgt 10 2.067 ~ 0.034 s/op | ||
| StartupBenchmark.spring a1_10 avgt 10 2.159 ~ 0.030 s/op | ||
| StartupBenchmark.spring a1_100 avgt 10 2.207 ~ 0.020 s/op | ||
| StartupBenchmark.spring a10_50 avgt 10 2.471 ~ 0.031 s/op | ||
| StartupBenchmark.spring a10_100 avgt 10 2.517 ~ 0.045 s/op | ||
| StartupBenchmark.spring a20_50 avgt 10 2.842 ~ 0.049 s/op | ||
| StartupBenchmark.spring a20_100 avgt 10 2.916 ~ 0.145 s/op | ||
| .... | ||
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| Look at the a20_100 case - instead of impacting start time by 9 seconds, it impacts it by 1 second. |
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| = AspectJ 1.8.13 | ||
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| _© Copyright 2017 Contributors. All rights reserved._ | ||
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| _Release info: 1.8.13 available 15-Nov-2017_ | ||
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| Small release that: | ||
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| * Dials back the performance optimizations for Spring AOP. One of them was taking things too far and has caused an | ||
| issue link:https://jira.spring.io/browse/SPR-16161[SPR-16161]. This wasn't the main performance enhancement for | ||
| Spring AOP though so the numbers are still very close to those shown in the 1.8.12 readme. | ||
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| * Includes better toleration of new JDK versions. If the versions are coming out thick and fast we need older | ||
| AspectJs to cope when simply running on new JDKs they haven't encountered before. |
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| = AspectJ 1.8.14 | ||
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| _© Copyright 2019 Contributors. All rights reserved._ | ||
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| _Release info: 1.8.14 available 6-Mar-2019_ | ||
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| Small release that: | ||
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| * Will skip `module-info.class` and class files under `META-INF` that you find in multi-release JARs, as described in | ||
| link:https://bugs.eclipse.org/bugs/show_bug.cgi?id=545033[bug 545033]. This enables some usage of AspectJ 8 operating | ||
| on JARs containing some of these features from later Java (but where the main set of classfiles in a JAR are Java 8 | ||
| or lower). For proper treatment of Java 9 code, please use AspectJ 1.9 or later. |