On Tue, 16 Apr 2024 19:47:06 GMT, Vladimir Kozlov wrote:
>> Okay.
>
> It is tempting to do for `nmethod` to replace `init_defaults()`. I will look
> what can be done.
It does not work. It does not allow fields initialization after delegation:
src/hotspot/share/code/nmethod.cpp: In constructor
On Tue, 16 Apr 2024 19:20:37 GMT, Vladimir Kozlov wrote:
>> Delegating constructors are the answer to having some common 'init'
>> functions. It would simply save lines of code that look the same in both
>> constructor initializer lists. But it's a drive-by comment.
>
> Okay.
It is tempting
On Tue, 16 Apr 2024 19:03:01 GMT, Coleen Phillimore wrote:
>> Thank you, @coleenp, foe looking on these changes.
>>
>> Which fields are initialized twice? Only `_oop_maps` is set to `nullptr`
>> before we proper build oop maps in first constructor.
>>
>> The only saving could be lines of code
On Tue, 16 Apr 2024 18:54:40 GMT, Vladimir Kozlov wrote:
>> src/hotspot/share/code/codeBlob.cpp line 106:
>>
>>> 104:
>>> 105: // Simple CodeBlob used for simple BufferBlob.
>>> 106: CodeBlob::CodeBlob(const char* name, CodeBlobKind kind, int size,
>>> uint16_t header_size) :
>>
>> Just a
On Tue, 16 Apr 2024 16:33:18 GMT, Coleen Phillimore wrote:
>> Vladimir Kozlov has updated the pull request incrementally with one
>> additional commit since the last revision:
>>
>> Use 16-bits types for header_size and frame_complete_offset arguments
>
> src/hotspot/share/code/codeBlob.cpp
On Tue, 16 Apr 2024 03:31:25 GMT, Vladimir Kozlov wrote:
>> This is part of changes which try to reduce size of `nmethod` and `codeblob`
>> data vs code in CodeCache.
>> These changes reduced size of `nmethod` header from 288 to 232 bytes. From
>> 304 to 248 in optimized VM:
>>
>> Statistics
On Tue, 16 Apr 2024 03:31:25 GMT, Vladimir Kozlov wrote:
>> This is part of changes which try to reduce size of `nmethod` and `codeblob`
>> data vs code in CodeCache.
>> These changes reduced size of `nmethod` header from 288 to 232 bytes. From
>> 304 to 248 in optimized VM:
>>
>> Statistics
> This is part of changes which try to reduce size of `nmethod` and `codeblob`
> data vs code in CodeCache.
> These changes reduced size of `nmethod` header from 288 to 232 bytes. From
> 304 to 248 in optimized VM:
>
> Statistics for 1282 bytecoded nmethods for C2:
> total in heap = 5560352
