On Thu, 15 May 2025 16:03:44 GMT, Andrew Haley wrote:
>> This intrinsic is generally faster than the current implementation for
>> Panama segment operations for all writes larger than about 8 bytes in size,
>> increasing to more than 2* the performance on larger memory blocks on
>> Graviton 2,
On Thu, 15 May 2025 16:03:44 GMT, Andrew Haley wrote:
>> This intrinsic is generally faster than the current implementation for
>> Panama segment operations for all writes larger than about 8 bytes in size,
>> increasing to more than 2* the performance on larger memory blocks on
>> Graviton 2,
On Thu, 15 May 2025 16:03:44 GMT, Andrew Haley wrote:
>> This intrinsic is generally faster than the current implementation for
>> Panama segment operations for all writes larger than about 8 bytes in size,
>> increasing to more than 2* the performance on larger memory blocks on
>> Graviton 2,
> This intrinsic is generally faster than the current implementation for Panama
> segment operations for all writes larger than about 8 bytes in size,
> increasing to more than 2* the performance on larger memory blocks on
> Graviton 2, between "panama" (C2 generated, what we use now) and "unsaf
On Wed, 14 May 2025 15:36:32 GMT, Andrew Dinn wrote:
> Looks good to me.
Sorry, please approve again.
-
PR Comment: https://git.openjdk.org/jdk/pull/25147#issuecomment-2884310593
> This intrinsic is generally faster than the current implementation for Panama
> segment operations for all writes larger than about 8 bytes in size,
> increasing to more than 2* the performance on larger memory blocks on
> Graviton 2, between "panama" (C2 generated, what we use now) and "unsaf
On Wed, 14 May 2025 10:47:40 GMT, Andrew Haley wrote:
>> This intrinsic is generally faster than the current implementation for
>> Panama segment operations for all writes larger than about 8 bytes in size,
>> increasing to more than 2* the performance on larger memory blocks on
>> Graviton 2,
On Wed, 14 May 2025 10:47:40 GMT, Andrew Haley wrote:
>> This intrinsic is generally faster than the current implementation for
>> Panama segment operations for all writes larger than about 8 bytes in size,
>> increasing to more than 2* the performance on larger memory blocks on
>> Graviton 2,
> This intrinsic is generally faster than the current implementation for Panama
> segment operations for all writes larger than about 8 bytes in size,
> increasing to more than 2* the performance on larger memory blocks on
> Graviton 2, between "panama" (C2 generated, what we use now) and "unsaf
On Mon, 12 May 2025 09:39:48 GMT, Andrew Haley wrote:
> > Looking at the improvements made, I suggest we also change (in
> > `SegmentBulkOperations`):
> > ```
> > private static final int NATIVE_THRESHOLD_FILL = powerOfPropertyOr("fill",
> > Architecture.isAARCH64() ? 18 : 5);
> > ```
> > to
>
> This intrinsic is generally faster than the current implementation for Panama
> segment operations for all writes larger than about 8 bytes in size,
> increasing to more than 2* the performance on larger memory blocks on
> Graviton 2, between "panama" (C2 generated, what we use now) and "unsaf
> This intrinsic is generally faster than the current implementation for Panama
> segment operations for all writes larger than about 8 bytes in size,
> increasing to more than 2* the performance on larger memory blocks on
> Graviton 2, between "panama" (C2 generated, what we use now) and "unsaf
On Mon, 12 May 2025 09:48:03 GMT, Andrew Dinn wrote:
>> Andrew Haley has updated the pull request incrementally with one additional
>> commit since the last revision:
>>
>> Stub stack frame
>
> src/hotspot/cpu/aarch64/stubGenerator_aarch64.cpp line 2619:
>
>> 2617:
>> 2618: __ bind(tail
On Mon, 12 May 2025 09:37:24 GMT, Andrew Haley wrote:
>> This intrinsic is generally faster than the current implementation for
>> Panama segment operations for all writes larger than about 8 bytes in size,
>> increasing to more than 2* the performance on larger memory blocks on
>> Graviton 2,
On Mon, 12 May 2025 06:52:12 GMT, Per Minborg wrote:
> Looking at the improvements made, I suggest we also change (in
> `SegmentBulkOperations`):
>
> ```
> private static final int NATIVE_THRESHOLD_FILL = powerOfPropertyOr("fill",
> Architecture.isAARCH64() ? 18 : 5);
> ```
>
> to
>
> ```
>
> This intrinsic is generally faster than the current implementation for Panama
> segment operations for all writes larger than about 8 bytes in size,
> increasing to more than 2* the performance on larger memory blocks on
> Graviton 2, between "panama" (C2 generated, what we use now) and "unsaf
On Mon, 12 May 2025 09:18:13 GMT, Andrew Dinn wrote:
>> Andrew Haley has updated the pull request incrementally with one additional
>> commit since the last revision:
>>
>> generate_unsafecopy_common_error_exit
>
> src/hotspot/cpu/aarch64/stubGenerator_aarch64.cpp line 2611:
>
>> 2609:
>> 2
On Fri, 9 May 2025 15:39:35 GMT, Andrew Haley wrote:
>> This intrinsic is generally faster than the current implementation for
>> Panama segment operations for all writes larger than about 8 bytes in size,
>> increasing to more than 2* the performance on larger memory blocks on
>> Graviton 2,
On Fri, 9 May 2025 15:39:35 GMT, Andrew Haley wrote:
>> This intrinsic is generally faster than the current implementation for
>> Panama segment operations for all writes larger than about 8 bytes in size,
>> increasing to more than 2* the performance on larger memory blocks on
>> Graviton 2,
On Fri, 9 May 2025 15:39:35 GMT, Andrew Haley wrote:
>> This intrinsic is generally faster than the current implementation for
>> Panama segment operations for all writes larger than about 8 bytes in size,
>> increasing to more than 2* the performance on larger memory blocks on
>> Graviton 2,
> This intrinsic is generally faster than the current implementation for Panama
> segment operations for all writes larger than about 8 bytes in size,
> increasing to more than 2* the performance on larger memory blocks on
> Graviton 2, between "panama" (C2 generated, what we use now) and "unsaf
On Fri, 9 May 2025 14:11:27 GMT, Andrew Haley wrote:
> This intrinsic is generally faster than the current implementation for Panama
> segment operations for all writes larger than about 8 bytes in size,
> increasing to more than 2* the performance on larger memory blocks on
> Graviton 2, betw
On Fri, 9 May 2025 14:11:27 GMT, Andrew Haley wrote:
> This intrinsic is generally faster than the current implementation for Panama
> segment operations for all writes larger than about 8 bytes in size,
> increasing to more than 2* the performance on larger memory blocks on
> Graviton 2, betw
On Fri, 9 May 2025 14:11:27 GMT, Andrew Haley wrote:
> This intrinsic is generally faster than the current implementation for Panama
> segment operations for all writes larger than about 8 bytes in size,
> increasing to more than 2* the performance on larger memory blocks on
> Graviton 2, betw
This intrinsic is generally faster than the current implementation for Panama
segment operations for all writes larger than about 8 bytes in size, increasing
to more than 2* the performance on larger memory blocks on Graviton 2, between
"panama" (C2 generated, what we use now) and "unsafe" (this
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