On Sun, 5 Jan 2025 07:07:15 GMT, Shaojin Wen wrote:
>> This is an optimization for decimal Integer.parseInt and Long.parseLong,
>> which improves performance by about 10%. The optimization includes:
>> 1. Improve performance by parsing 2 numbers at a time, which has performance
>> improvements
On Sun, 5 Jan 2025 00:12:03 GMT, Shaojin Wen wrote:
> 2. The leading zero scenario is not common, and there is no need to optimize
> this scenario.
Another approach would be to limit the “fast” path to the case where the
overall string length is 9 or less. That would allow overflow-free calcu
On Sat, 4 Jan 2025 12:09:04 GMT, Shaojin Wen wrote:
>> This is an optimization for decimal Integer.parseInt and Long.parseLong,
>> which improves performance by about 10%. The optimization includes:
>> 1. Improve performance by parsing 2 numbers at a time, which has performance
>> improvements
On Fri, 13 Dec 2024 16:06:53 GMT, Raffaello Giulietti
wrote:
>> See the JBS bug for some details.
>
> Raffaello Giulietti has updated the pull request with a new target base due
> to a merge or a rebase. The incremental webrev excludes the unrelated changes
> brought in by the merge/rebase. Th
On Sun, 20 Oct 2024 00:19:25 GMT, Shaojin Wen wrote:
> Move getChars methods of StringLatin1 and StringUTF16 to DecimalDigits to
> reduce duplication
>
> 1. HexDigits and OctalDigits also include getCharsLatin1 and getCharsUTF16
> 2. Putting these two methods into DecimalDigits can avoid the ne
On Sun, 13 Oct 2024 17:48:15 GMT, j3graham wrote:
>> src/java.base/share/classes/java/math/BigDecimal.java line 5234:
>>
>>> 5232: */
>>> 5233: private static BigInteger fiveToTwoToThe(int n) {
>>> 5234: int i = Math.min(n, FIVE_TO_
On Sun, 13 Oct 2024 14:39:32 GMT, j3graham wrote:
>> fabioromano1 has updated the pull request incrementally with one additional
>> commit since the last revision:
>>
>> Minor change
>
> src/java.base/share/classes/java/math/BigDecimal.java line 5234:
>
>
On Sat, 12 Oct 2024 17:37:25 GMT, fabioromano1 wrote:
>> An optimized algorithm for `BigDecimal.stripTrailingZeros()` that uses
>> repeated squares trick.
>
> fabioromano1 has updated the pull request incrementally with one additional
> commit since the last revision:
>
> Minor change
src/j
On Wed, 1 Feb 2023 11:37:16 GMT, Per Minborg wrote:
>> src/java.base/share/classes/java/time/ZoneOffset.java line 147:
>>
>>> 145:
>>> 146: /** Cache of time-zone offset by offset in seconds [-18h, +18h]
>>> for each even quarter of an hour. */
>>> 147: private static final AtomicRefer
On Fri, 27 Jan 2023 13:53:45 GMT, Glavo wrote:
>> I checked the `java.base` module, and all the `Collection#toArray()` method
>> of collections be implemented correctly.
>>
>> Their return values can be trusted, so many unnecessary array duplication
>> can be eliminated.
>
> Glavo has updated
On Wed, 4 Jan 2023 13:16:26 GMT, Andriy Plokhotnyuk wrote:
>
> Do you see any concrete examples of classes in the JDK that could benefit
> from a "VarHandlization"?
`ImageOutputStreamImpl` and `ImageInputStreamImpl` in `javax.imageio.stream`
have some very similar code that might benefit.
On Fri, 28 Oct 2022 19:51:49 GMT, Jim Laskey wrote:
>> Enhance the Java programming language with string templates, which are
>> similar to string literals but contain embedded expressions. A string
>> template is interpreted at run time by replacing each expression with the
>> result of evalu
On Fri, 28 Oct 2022 14:55:28 GMT, Jim Laskey wrote:
>> Enhance the Java programming language with string templates, which are
>> similar to string literals but contain embedded expressions. A string
>> template is interpreted at run time by replacing each expression with the
>> result of evalu
On Tue, 16 Nov 2021 20:53:26 GMT, kabutz wrote:
>> This is a draft proposal for how we could improve stream performance for the
>> case where the streams are empty. Empty collections are common-place. If we
>> iterate over them with an Iterator, we would have to create one small
>> Iterator ob
On Tue, 16 Nov 2021 20:53:26 GMT, kabutz wrote:
>> This is a draft proposal for how we could improve stream performance for the
>> case where the streams are empty. Empty collections are common-place. If we
>> iterate over them with an Iterator, we would have to create one small
>> Iterator ob
On Tue, 16 Nov 2021 20:53:26 GMT, kabutz wrote:
>> This is a draft proposal for how we could improve stream performance for the
>> case where the streams are empty. Empty collections are common-place. If we
>> iterate over them with an Iterator, we would have to create one small
>> Iterator ob
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