RFR: SA: JDK-8189798: SA cleanup - part 1
Sharath Ballal
sharath.ballal at oracle.com
Fri Nov 3 10:14:50 UTC 2017
Hi Jini,
You have appended 'Field' for most of the SA variables. Example:
private static CIntegerField pcOffsetField;
pcOffsetField = type.getCIntegerField("_pc_offset");
However that is not the case in
private static long MinChunkSizeInBytes;
MinChunkSizeInBytes = (type.getCIntegerField("_min_chunk_size_in_bytes")).getValue();
You may want to follow the same convention here.
Rest of the changes look ok.
Thanks,
Sharath (not a reviewer)
-----Original Message-----
From: Jini George
Sent: Thursday, November 02, 2017 10:24 AM
To: Serguei Spitsyn; serviceability-dev at openjdk.java.net; hotspot-runtime-dev at openjdk.java.net; hotspot-dev at openjdk.java.net
Subject: Re: RFR: SA: JDK-8189798: SA cleanup - part 1
Could I please get one more review done for this ?
Thanks,
Jini.
On 10/27/2017 9:19 PM, Jini George wrote:
> Thank you very much, Serguei.
>
> -Jini.
>
> On 10/27/2017 2:22 PM, serguei.spitsyn at oracle.com wrote:
>> Hi Jini,
>>
>> The fix looks good to me.
>>
>> Thanks,
>> Serguei
>>
>>
>> On 10/24/17 00:31, Jini George wrote:
>>> Adding hotspot-dev too.
>>>
>>> Thanks,
>>> Jini.
>>>
>>> On 10/24/2017 12:05 PM, Jini George wrote:
>>>> Hello,
>>>>
>>>> As a part of SA next, I am working on writing a test case which
>>>> compares the fields and the types of the fields of the SA java
>>>> classes with the corresponding entries in the vmStructs tables.
>>>> This, to some extent, would help in preventing errors in SA due to
>>>> the changes in hotspot. As a precursor to this, I am in the process
>>>> of making some cleanup related changes (mostly in SA). I plan to
>>>> have the changes done in parts. For this webrev, most of the
>>>> changes are for:
>>>>
>>>> 1. Avoiding having some values being redefined in SA. Instead have
>>>> those exported through vmStructs, and read it in SA.
>>>> (CompactibleFreeListSpace::_min_chunk_size_in_bytes,
>>>> CompactibleFreeListSpace::IndexSetSize)
>>>>
>>>> Redefinition of hotspot values in SA makes SA error prone, when the
>>>> value gets altered in hotspot and the corresponding modification
>>>> gets missed out in SA.
>>>>
>>>> 2. To remove some unused code (JNIid.java).
>>>> 3. Add the missing "CMSBitMap::_bmStartWord" in vmStructs.
>>>> 4. Modify variable names in SA and hotspot to match the counterpart
>>>> names, so that the comparison of the fields become easier. Most of
>>>> the changes belong to this group.
>>>>
>>>> Could I please get reviews done for these precursor changes ?
>>>>
>>>> JBS Id: https://bugs.openjdk.java.net/browse/JDK-8189798
>>>> webrev: http://cr.openjdk.java.net/~jgeorge/8189798/webrev.00/
>>>>
>>>> Thank you,
>>>> Jini.
>>>>
>>
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Subject: Re: RFR: SA: JDK-8189798: SA cleanup - part 1
From: Jini George <jini.george at oracle.com>
To: "serguei.spitsyn at oracle.com" <serguei.spitsyn at oracle.com>,
"serviceability-dev at openjdk.java.net" <serviceability-dev at openjdk.java.net>,
"hotspot-runtime-dev at openjdk.java.net"
<hotspot-runtime-dev at openjdk.java.net>, <hotspot-dev at openjdk.java.net>
References: <18501902-23db-de6c-b83d-640cd33df836 at oracle.com>
<e7cf9e4a-7986-317d-56dc-7594e0b3c798 at oracle.com>
<691d8166-5395-906a-4256-ef0ab2e2773a at oracle.com>
<f5483c7b-68ea-723f-6bd6-e2fe5d3d4570 at oracle.com>
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Could I please get one more review done for this ?
Thanks,
Jini.
On 10/27/2017 9:19 PM, Jini George wrote:
> Thank you very much, Serguei.
>
> -Jini.
>
> On 10/27/2017 2:22 PM, serguei.spitsyn at oracle.com wrote:
>> Hi Jini,
>>
>> The fix looks good to me.
>>
>> Thanks,
>> Serguei
>>
>>
>> On 10/24/17 00:31, Jini George wrote:
>>> Adding hotspot-dev too.
>>>
>>> Thanks,
>>> Jini.
>>>
>>> On 10/24/2017 12:05 PM, Jini George wrote:
>>>> Hello,
>>>>
>>>> As a part of SA next, I am working on writing a test case which
>>>> compares the fields and the types of the fields of the SA java
>>>> classes with the corresponding entries in the vmStructs tables.
>>>> This, to some extent, would help in preventing errors in SA due to
>>>> the changes in hotspot. As a precursor to this, I am in the process
>>>> of making some cleanup related changes (mostly in SA). I plan to
>>>> have the changes done in parts. For this webrev, most of the
>>>> changes are for:
>>>>
>>>> 1. Avoiding having some values being redefined in SA. Instead have
>>>> those exported through vmStructs, and read it in SA.
>>>> (CompactibleFreeListSpace::_min_chunk_size_in_bytes,
>>>> CompactibleFreeListSpace::IndexSetSize)
>>>>
>>>> Redefinition of hotspot values in SA makes SA error prone, when the
>>>> value gets altered in hotspot and the corresponding modification
>>>> gets missed out in SA.
>>>>
>>>> 2. To remove some unused code (JNIid.java).
>>>> 3. Add the missing "CMSBitMap::_bmStartWord" in vmStructs.
>>>> 4. Modify variable names in SA and hotspot to match the counterpart
>>>> names, so that the comparison of the fields become easier. Most of
>>>> the changes belong to this group.
>>>>
>>>> Could I please get reviews done for these precursor changes ?
>>>>
>>>> JBS Id: https://bugs.openjdk.java.net/browse/JDK-8189798
>>>> webrev: http://cr.openjdk.java.net/~jgeorge/8189798/webrev.00/
>>>>
>>>> Thank you,
>>>> Jini.
>>>>
>>
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Subject: Re: RFR: SA: JDK-8189798: SA cleanup - part 1
From: Jini George <jini.george at oracle.com>
To: "serguei.spitsyn at oracle.com" <serguei.spitsyn at oracle.com>,
"serviceability-dev at openjdk.java.net" <serviceability-dev at openjdk.java.net>,
"hotspot-runtime-dev at openjdk.java.net"
<hotspot-runtime-dev at openjdk.java.net>, <hotspot-dev at openjdk.java.net>
References: <18501902-23db-de6c-b83d-640cd33df836 at oracle.com>
<e7cf9e4a-7986-317d-56dc-7594e0b3c798 at oracle.com>
<691d8166-5395-906a-4256-ef0ab2e2773a at oracle.com>
<f5483c7b-68ea-723f-6bd6-e2fe5d3d4570 at oracle.com>
Organization: Oracle Corporation
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Date: Thu, 2 Nov 2017 10:24:03 +0530
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Could I please get one more review done for this ?
Thanks,
Jini.
On 10/27/2017 9:19 PM, Jini George wrote:
> Thank you very much, Serguei.
>
> -Jini.
>
> On 10/27/2017 2:22 PM, serguei.spitsyn at oracle.com wrote:
>> Hi Jini,
>>
>> The fix looks good to me.
>>
>> Thanks,
>> Serguei
>>
>>
>> On 10/24/17 00:31, Jini George wrote:
>>> Adding hotspot-dev too.
>>>
>>> Thanks,
>>> Jini.
>>>
>>> On 10/24/2017 12:05 PM, Jini George wrote:
>>>> Hello,
>>>>
>>>> As a part of SA next, I am working on writing a test case which
>>>> compares the fields and the types of the fields of the SA java
>>>> classes with the corresponding entries in the vmStructs tables.
>>>> This, to some extent, would help in preventing errors in SA due to
>>>> the changes in hotspot. As a precursor to this, I am in the process
>>>> of making some cleanup related changes (mostly in SA). I plan to
>>>> have the changes done in parts. For this webrev, most of the
>>>> changes are for:
>>>>
>>>> 1. Avoiding having some values being redefined in SA. Instead have
>>>> those exported through vmStructs, and read it in SA.
>>>> (CompactibleFreeListSpace::_min_chunk_size_in_bytes,
>>>> CompactibleFreeListSpace::IndexSetSize)
>>>>
>>>> Redefinition of hotspot values in SA makes SA error prone, when the
>>>> value gets altered in hotspot and the corresponding modification
>>>> gets missed out in SA.
>>>>
>>>> 2. To remove some unused code (JNIid.java).
>>>> 3. Add the missing "CMSBitMap::_bmStartWord" in vmStructs.
>>>> 4. Modify variable names in SA and hotspot to match the counterpart
>>>> names, so that the comparison of the fields become easier. Most of
>>>> the changes belong to this group.
>>>>
>>>> Could I please get reviews done for these precursor changes ?
>>>>
>>>> JBS Id: https://bugs.openjdk.java.net/browse/JDK-8189798
>>>> webrev: http://cr.openjdk.java.net/~jgeorge/8189798/webrev.00/
>>>>
>>>> Thank you,
>>>> Jini.
>>>>
>>
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