On Fri, 23 Jun 2023 04:52:16 GMT, 温绍锦 wrote:
>> 温绍锦 has updated the pull request incrementally with one additional commit
>> since the last revision:
>>
>> remove unused import
>
> Latest benchmark results (commit id
> [0d34655](https://github.com/openjdk/jdk/pull/14578/commits/0d346558e00cf
On Wed, 21 Jun 2023 06:29:40 GMT, Adam Sotona wrote:
>> Adam Sotona has updated the pull request incrementally with one additional
>> commit since the last revision:
>>
>> ClassfileBenchmark::transformWithNewMaps changed to transformWithAddedNOP
>
> I think we've resolved controversy about gl
> This would encourage Classfile API users to use the descriptors as constants,
> which can improve performance by avoiding repeated validation and reusing
> cached descriptor strings for MethodTypeDesc. This patch updates usages in
> the main codebase and benchmarks; tests are left untouched.
This would encourage Classfile API users to use the descriptors as constants,
which can improve performance by avoiding repeated validation and reusing
cached descriptor strings for MethodTypeDesc. This patch updates usages in the
main codebase and benchmarks; tests are left untouched.
On Fri, 23 Jun 2023 23:25:25 GMT, 温绍锦 wrote:
>> src/java.base/share/classes/java/lang/Long.java line 493:
>>
>>> 491: | H256[((int) lsb) & 0xff]);
>>> 492:
>>> 493: return new String(buf, LATIN1);
>>
>> Note that this isn’t correct when `COMPACT_STRINGS` is `fal
> `ByteArray` and `ByteArrayLittleEndian` are very useful tool classes that can
> be used in many places to performance tuning.
>
> Currently they are implemented by `VarHandle`, so using them may have some
> impact on startup time.
>
> This PR reimplements them using `Unsafe`, which reduces th
On Sat, 24 Jun 2023 06:11:55 GMT, Glavo wrote:
>> src/java.base/share/classes/jdk/internal/util/ByteArrayLittleEndian.java
>> line 150:
>>
>>> 148: public static long getUnsignedInt(byte[] array, int offset) {
>>> 149: return Integer.toUnsignedLong((int) INT.get(array, offset));
>>>
> `ByteArray` and `ByteArrayLittleEndian` are very useful tool classes that can
> be used in many places to performance tuning.
>
> Currently they are implemented by `VarHandle`, so using them may have some
> impact on startup time.
>
> This PR reimplements them using `Unsafe`, which reduces th
Please review this PR to use modern APIs and language features to simplify
equals, hashCode, and compareTo for BigInteger. If you have any performance
concerns, please raise them.
This PR is cherry-picked from a bigger, not-yet-published PR, to test the
waters. That latter PR will be published
On Fri, 23 Jun 2023 17:27:00 GMT, Pavel Rappo wrote:
> Please review this PR to use modern APIs and language features to simplify
> equals, hashCode, and compareTo for BigInteger. If you have any performance
> concerns, please raise them.
>
> This PR is cherry-picked from a bigger, not-yet-pub
On Sat, 24 Jun 2023 09:16:38 GMT, Chen Liang wrote:
> Do the Unsafe methods throw NPE on null array argument?
No, but `arrayOffset` will throw.
-
PR Review Comment: https://git.openjdk.org/jdk/pull/14636#discussion_r1240681104
> `ByteArray` and `ByteArrayLittleEndian` are very useful tool classes that can
> be used in many places to performance tuning.
>
> Currently they are implemented by `VarHandle`, so using them may have some
> impact on startup time.
>
> This PR reimplements them using `Unsafe`, which reduces th
> `ByteArray` and `ByteArrayLittleEndian` are very useful tool classes that can
> be used in many places to performance tuning.
>
> Currently they are implemented by `VarHandle`, so using them may have some
> impact on startup time.
>
> This PR reimplements them using `Unsafe`, which reduces th
On Sat, 24 Jun 2023 06:42:18 GMT, Glavo wrote:
> `ByteArray` and `ByteArrayLittleEndian` are very useful tool classes that can
> be used in many places to performance tuning.
>
> Currently they are implemented by `VarHandle`, so using them may have some
> impact on startup time.
>
> This PR r
On Sat, 24 Jun 2023 06:42:18 GMT, Glavo wrote:
> `ByteArray` and `ByteArrayLittleEndian` are very useful tool classes that can
> be used in many places to performance tuning.
>
> Currently they are implemented by `VarHandle`, so using them may have some
> impact on startup time.
>
> This PR r
On Sat, 24 Jun 2023 06:42:18 GMT, Glavo wrote:
> `ByteArray` and `ByteArrayLittleEndian` are very useful tool classes that can
> be used in many places to performance tuning.
>
> Currently they are implemented by `VarHandle`, so using them may have some
> impact on startup time.
>
> This PR r
`ByteArray` and `ByteArrayLittleEndian` are very useful tool classes that can
be used in many places to performance tuning.
Currently they are implemented by `VarHandle`, so using them may have some
impact on startup time.
This PR reimplements them using `Unsafe`, which reduces the impact on st
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