Call For Vote: Project Tsan

Thomas Stüfe thomas.stuefe at
Thu Feb 14 07:48:56 UTC 2019

Oops, misread that. Sorry for the noise, pls ignore my mail.

On Thu, Feb 14, 2019 at 7:35 AM Thomas Stüfe <thomas.stuefe at>

> Vote: yes
> On Thu, Feb 14, 2019 at 1:08 AM Jean Christophe Beyler <
> jcbeyler at> wrote:
>> Hello,
>> I hereby propose the creation of the Tsan Project with Jean Christophe
>> Beyler as the Lead and the Serviceability Group as the sponsoring Group.
>> In accordance with the OpenJDK guidelines [1], the TSAN project would
>> provide a venue to explore and incubate a Thread SANitizing (TSAN) feature
>> that could be integrated into the Hotspot JVM and the JVM Tool Interface.
>> This includes working, evaluating, and incubating a Thread-Sanitizer
>> implementation [2] for Java.
>> The Google platform team has historically worked on a Thread SANitizing
>> (TSAN) project internally. Thread sanitizing allows Java users to see data
>> race conditions in their Java projects. It is used internally to
>> automatically detect and warn users of existing data races detected while
>> running user code. The TSAN project proposes to investigate, in the open,
>> how these changes could be made general enough to be pushed into the
>> mainline, or should be dropped due to being too specific or could be done
>> using other existing mechanisms. The project would not be a Google-only
>> project and will have a mailing list to discuss and potentially accept any
>> contribution trying to extend and/or enhance the TSAN implementation.
>> The evaluation criteria for the TSAN implementation includes but would not
>> be limited to:
>>      * Performance: not adding overhead to non-tsan runs is paramount and
>> there are various means to do so
>>      * General usefulness for the community at large so that the TSAN
>> feature is deemed a good feature to have
>> If the TSAN implementation becomes stable and is deemed useful enough, the
>> TSAN project would shepherd the work in one or more JEPs to integrate TSAN
>> into the mainline of OpenJDK.
>> The Tsan project scope was discussed during the call for discussion for
>> the
>> Atlantis project [3]. It was determined that the Atlantis project's scope
>> was not well defined and it would be better to start with a separate Tsan
>> project with an end goal and better determined boundaries.
>> The current suggested initial Reviewers and Committers would be but is
>> most
>> likely not going to be limited to (alphabetical order of first name):
>> * Alex Menkov (amenkov)
>> * Chuck Rasbold (rasbold)
>> * Daniil Titov (dtitov)
>> * Jean Christophe Beyler (jcbeyler)
>> * Liam Cushon (cushon)
>> * Serguei Spitsyn  (sspitsyn)
>> Votes are due by Wednesday 27, 23:59 pm Pacific Time.
>> Only current OpenJDK Members [3] are eligible to vote on this motion.
>> Votes must be cast in the open on the discuss list. Replying to this
>> message is sufficient if your mail program honors the Reply-To header.
>> For Lazy Consensus voting instructions, see [5].
>> Thanks,
>> Jc
>> [1]
>> [2]
>> [3]
>> [4]
>> [5]

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